SurfIP.com

- US Granted - USPTO

1988-06-07

Fluoropolymer alloys made of melt fabricatable extra-high-molecular weight fluorinated ethylene-propylene copolymer (EHMW-FEP) and one or more other polymers. In fluoropolymer alloys made of EHMW-FEP and polytetrafluoroethylene, the weight percentage of the former is 0.1-99.9% and the latter is...

- France - INPI

1999-03-26

A method for the separation of para-xylene from an 8C aromatic charge by means of an adsorption stage, a liquid phase isomerization stage without addition of hydrogen and a vapor phase isomerization of ethylbenzene.- DETAILED DESCRIPTION - The initial charge contains ortho, meta and para-xylenes...

- US Granted - USPTO

2003-04-08

Methods for the production of purified, catalytically active, recombinant memapsin 2 have been developed. The substrate and subsite specificity of the catalytically active enzyme have been determined. The substrate and subsite specificity information was used to design substrate analogs of the...

- US Granted - USPTO

1992-02-11

This invention relates to fluoropolymer alloys made of melt fabricatable extra-high-molecular weight fluorinated ethylene-propylene copolymer (EHMW-FEP) and one or more other polymers. In fluoropolymer alloys made of EHMW-FEP and polytetrafluoroethylene, weight percentage of the former is 0.1-99.9%...

- US Granted - USPTO

1986-11-04

A process is disclosed for preparing coated catalysts, inter alia, for gas phase oxidations in organic chemistry, comprised of an inert support and a coating of catalyst material enclosing this support, wherein a suspension of the starting material for the coating is sprayed onto an agitated bed of...

- US Granted - USPTO

1975-08-05

A bisulphite addition product of a polyisocyanate and/or polyisothiocyanate prepolymer, said addition product having on an average at least two isocyanate-bisulphite or isothiocyanate-bisulphite adduct groups per molecule, having no free isocyanate or isothiocyanate groups, and being freely...

- US Granted - USPTO

1997-04-22

This invention relates to the fields of pharmaceutical and organic chemistry and provides novel 3-benzyl-benzofurans which are .alpha.-substituted with ether, thioether amino, cyano or halo that are useful for the treatment of the various medical indications associated with post-menopausal...

- US Granted - USPTO

1994-04-12

The present invention provides chiral nucleotide analogs having the Formulas I and II ##STR1## and pharmaceutically acceptable salts and solvates thereof, and their pharmaceutical compositions for use in the treatment of viral infections, especially those caused by human immunodeficiency virus...

- US Granted - USPTO

1982-04-20

A molecular model building set for the formation of models of molecules and compounds primarily in the field of organic chemistry is disclosed. The set includes dimensionally accurate model building members (10, 60) that are rotatable about their axes, and can be interconnected and/or interlocked...

- US Granted - USPTO

1993-02-16

This invention relates to formed, polymeric complexes of metals of the eighth subgroup of the periodic system with ligands of an organosiloxane copolycondensate optionally cross-linked by means of cross-linking agents containing Si, Ti, Zr and/or Al, in the form of statistical, block or mixed...

- US Granted - USPTO

1985-06-04

- US Granted - USPTO

1995-04-18

The present invention provides a transition metal/polymer matrix composite material which has durable, wear and corrosion resistant and friction reducing characteristics which can be used in a powder or liquid form, or, which can be bonded to a desired surface at ambient temperature. The specific...

- Europe - EPO

1996-09-25

This invention relates to the fields of pharmaceutical and organic chemistry and provides novel 1-benzyl-naphthyls (I) which are alpha -substituted with ether, thioether, amino, hydrazino, cyano or halo that are useful for the treatment of the various medical indications associated with...

- US Granted - USPTO

1995-01-31

The present invention concerns nucleotide analogs and their compositions and use. In particular it relates to novel (phosphonomethoxy) methoxy purine/pyrimidine derivatives.

- US Granted - USPTO

1992-07-21

This invention provides a primary standard and/or secondary standards for assay for glycated proteins in samples such as blood. The primary standard is composed of a polymer or copolymer of an amino acid, such as lysine, serine or those listed on table 37 (pages 100-110 of the second edition of...

- France - INPI

1987-05-29

The invention relates to organic chemistry. It relates to a process for the preparation of ( /-)-14,15-dihydro- (3 beta ,14 alpha ,16 alpha )-20,21-dinoreburnamenin-14-ol, of general formula: characterised in that ( /-)(3 beta ,16 alpha )-20,21-eburnamenine is reacted with hydrogen peroxide via an...

- US Applications - USPTO

2002-08-22

- US Granted - USPTO

1983-08-16

- US Applications - USPTO

2002-04-25

- US Granted - USPTO

1994-10-04

The invention relates to new compounds, di(2-propyl) esters of (R)-, (S)- and (RS)-1-fluoro-2-phosphonomethoxy-3-p-toluenesulfonyloxypropane and the method of producing them. The compounds can be used with advantage in the preparation of N-(3-fluoro-2-phosphonomethoxypropyl) derivatives of...

- US Granted - USPTO

1987-07-07

The present invention relates to the process for preparing terpolymer of tetrafluoroethylene (TFE), ethylene (E), and a third monomer. According to the present invention, dicarbonate peroxide is used as initiator, 1,1,2-trichloro-1,2,2-trifluoro-ethane as the reaction medium and compounds of...

- US Granted - USPTO

1978-07-04

An improved multistep process for the production of intermediates for hypotensive compounds, which intermediates are of the formula V: ##STR1## wherein R.sub.1 and R.sub.2 are lower alkyl of 1 to 4 carbon atoms, inclusive, alkenyl of 3 or 4 carbon atoms, cycloalkyl from 3 to 7 carbon atoms,...

- US Granted - USPTO

1975-11-25

A method for the methylenation of catechols via the reaction of catechols with methylene chloride in the presence of selected strong bases is described. This process has wide applicability in the field of synthetic organic chemistry, especially in natural product syntheses.

- US Granted - USPTO

2005-11-08

The present invention relates to organic chemistry, in particular, to synthesis of sulfoderivatives of the polycyclic compounds and fabrication of optically anisotropic coatings on their base. The indanthrone sulfoderivatives of the general structural formulas I or II capable of forming LLC phase...

- China(Native) - SIPO

2002-12-04

本发明是R－沙丁胺醇酒石酸盐的制备方法，它是以消旋体沙丁胺醇为原料，按摩尔比为1∶4～1∶1的比例把光学纯拆分剂L－( )－酒石酸和消旋体沙丁胺醇混合溶解或分别溶解在水、醇或酮中，搅拌下加热回流10～30分钟或加热回流至澄清，降温至室温，析出非对映异构体固体盐，过滤，得到R－沙丁胺醇酒石酸盐，产品纯度高，结晶性能和稳定性良好，e.e.大于99％，收率大于50％。本发明还有原料易得，工艺简单等特点。

- China - SIPO

2002-12-04

A process for preparing R-salbutamol tartrate from dl-salbutamol through proportionally mixing L-( )-tartaric acid with dl-salbutamol and dissolving the mixture in water, alcohol, or ketone or respectively dissolving both, stirring while heating reflux for 10-30 min or until it is clear, cooling to...

- Europe - EPO

1987-11-19

A process of isolating dihydroxyacetone which is a useful intermediate in organic chemistry as well as being a sun-tanning agent. The process comprises passing a reaction mixture containing dihydroxyacetone in an organic solvent through at least one thin film evaporator to distil dihydroxyacetone...

- US Granted - USPTO

1973-04-10

- PCT - WIPO

2003-04-03

(EN) The invention concerns the preparation of halogenated monoorganoxysilanes, of formula (I), said compounds being useful as synthesis intermediate in organic chemistry. Said method for preparing monoorganoxysilanes consists in: using as starting product halogenoalkylsilanes of the...

- China(Native) - SIPO

2000-11-22

本发明是制备光学纯的肾上腺素类β－激动剂的新方法――组合拆分法，根据组合化学的原理，以外消旋的β－激动剂为原料，用酒石酸及其衍生物中的一种或多种，进行拆分，分别制得e.e.值大于９９％的两种构型的β－激动剂，且其收率均大于７０％；还可以得到光学纯度大于９９％e.e.、化学纯度大于９９％的光学活性β－激动剂的无机酸盐。本发明的制备方法所用原料成本低，操作简单，副反应少；有简便、高效、低成本、易于工业化等优点。

- China - SIPO

2000-11-22

A process for preparing optical-purity adrenin beta-excitomotors by combination-disconnection method is disclosed. On the basis of combination chemistry, the recemic beta-excitomotor is used as raw material. The tartaric and one or more of tis derivatives are used for disconnection to obtain two...

- PCT - WIPO

1999-02-25

The present invention relates to carrying out organic chemistry on solid supports comprising a functionalised amide or a functionalised sulphone, to functionalised supports comprising quaternary ammonium compounds, to a process for the preparation of tertiary amines or N-containing heterocyclic...

- US Granted - USPTO

1996-10-15

The present invention provides a specific hybrid series of transition metal polymer matrix composite sets which create durable friction reducing, wear, and corrosion resistance characteristics which can be used in a powder or liquid form, or, which can be bonded to a desired surface at ambient...

- US Granted - USPTO

1995-12-19

The present invention relates to a novel and economical process for the synthesis of HPMP-substituted nucleotide antiviral compounds. Also disclosed are novel intermediates produced in the process for the preparation of HPMPC.

- US Granted - USPTO

1985-09-03

- US Granted - USPTO

1973-09-18

A method of preparing 2-alkylthiazoles or 2-alkylselenazoles is described wherein an aromatic disulphide or diselenide having amino groups or nitro groups in the 2-positions relative to the disulphide or diselenide group is catalytically hydrogenated using a rhenium sulphide as catalyst in the...

- US Granted - USPTO

2008-05-06

This invention is related to the fields of organic chemistry and nanotechnology. In particular, it relates to materials and methods for the preparation of organic synthons and bridged macrocyclic module compounds. The bridged macrocyclic module compounds may be used to prepare macrocyclic...

- US Applications - USPTO

2004-11-04

- China(Native) - SIPO

2004-09-01

本发明涉及一类利用合成的高分子固载化的双辛可尼类生物碱配体进行不对称羟胺化反应和双羟化反应的方法，反应产物的产率和对映选择性高，催化剂能反复使用，该方法尤其适用于合成紫杉醇(Taxol)及其C13边链的大规模生产。所用的高分子固载化的双辛可尼类生物碱配体具有如上结构式：其中PEG是聚乙二醇， R＝H或OCH 3 。

- China - SIPO

2004-09-01

The invention relates to a process for carrying out asymmetrical hydroxylamine amination reaction and dual hydroxide reaction, wherein synthesized high polymer tethered Cinchonideine alkaloid ligand is utilized for raising yield and selectivity for the reaction product, the catalyst can be used...

- US Applications - USPTO

2003-12-18

- China(Native) - SIPO

2003-09-10

Brφnsted酸性离子液体[Hmim] X - (X＝Cl、Br、I)，即卤化甲基咪唑盐中伯醇或环己醇转化为卤代烃的方法，属于有机化学反应新方法的技术领域。该离子液体与伯醇或环己醇混合，搅拌，加热，静置，重力沉降，分液得到卤代烃，收率85～100％。上述反应中，该离子液体兼作催化剂、卤代试剂和溶剂。具有收率高，工艺简单，催化剂和溶剂可反复循环使用及环境友好等优点。

- US Applications - USPTO

2002-11-07

- China(Native) - SIPO

2002-02-13

本发明涉及一种制备碳纳米管的催化剂，该催化剂是一种具有钙钛石(ABO 3 )或类钙钛石(A 2 BO 4 )结构的复合氧化物，其中A为稀土元素，B为活性过渡金属元素。该氧化物合成方法简单，成本低廉。以该氧化物为催化剂，纳米级分布的活性过渡金属催化分解碳源气体，从而制得碳纳米管，所制得的碳纳米管选择性高(96％以上)，管径均匀。该催化剂溶于常用酸，易于与碳纳米管分离。

- China - SIPO

2002-02-13

The catalyst for preparing nanometer carbon tube is one compound oxide with the structure of ABO3 or A2BO4, where A is RE element and B is active transition metal element. The oxide has simple synthesis process and low cost. When the oxide is used as catalyst, the carbon source gas will be...

- China(Native) - SIPO

2002-01-30

本发明涉及甲醇液相氧化羰化合成碳酸二甲酯的一种新型催化剂。该催化剂属于氯化亚铜与含氮的杂环化合物或高分子的络合物。在间歇高压釜中，加入甲醇催化剂、CO和O 2 ，在120～130℃、2.0～3.0MPa合成碳酸二甲酯，甲醇单程转化率≥32％，目标产物的选择性≥99.9％。本发明中催化剂制备工艺简单，催化剂的活性选择性、稳定性好，累计使用1000小时，催化剂性能没有降低，具有良好的工业应用前景。

- China - SIPO

2002-01-30

The present invention relates to a new-type catalyst for methyl alcohol liquid phase oxidation and oxonation to synthesize methyl carbonate. Said catalyst belongs to a complex of cuprous chloride and nitrogen-contained heterocyclic compound or polymer. In batch high-pressure still the methyl...

- PCT - WIPO

1999-02-04

(EN) The invention concerns an ionic compound of formula [R?1¿X?1¿(Z?1¿)-Q?-¿-X?2¿(Z?2¿)-R?2¿]¿m? M?m ¿ in which M?m ¿ is a cation of valence m, each of the X?i¿ is S=Z?3¿, S=Z?4¿, P-R?3¿ or P-R?4¿; -Q is N, CR?5¿, CCN or CSO¿2?R?5¿, each of the Z?i¿ is =O, =NC$m(Z)N, =C(C$m(Z)N)¿2?, =NS(=Z)¿2?R?6¿...

- China(Native) - SIPO

1996-09-25

本发明属于一种含有双组份β晶型成核剂的聚丙烯树脂合成纸及其生产方法，该合成纸由０．０００１～５％重量的成核剂Ａ，０．００１―５％重量的成核剂Ｂ，聚丙烯或乙烯－丙烯共聚物、或再和其它合成树脂共混而成，经熔融后平膜挤出或吹塑法将β晶型聚丙烯树脂制成基膜，再通过拉伸、定型和表面处理后成为聚丙烯合成纸，不仅生产方法简便，而且本发明的聚丙烯合成纸具有高白度、不透明度、高抗张强度、耐折性和耐水性，可适用于印刷、包装和一些高附加值领域。

- Europe - EPO

1996-09-11

This invention relates to the fields of pharmaceutical and organic chemistry and provides novel 3-benzyl-benzofurans which are alpha -substituted with ether, thioether, amino, hydrazino cyano or halo that are useful for the treatment of the various medical indications associated with...

- Europe - EPO

1996-09-04

This invention relates to the fields of pharmaceutical and organic chemistry and provides novel phosphorous-containing benzothiophene compounds which are useful for the treatment of the various medical indications associated with post-menopausal syndrome, as well as estrogen dependent diseases...

- PCT - WIPO

1994-02-17

Resolved enantiomers of formulae (IA) and (IB) wherein B is a purine or pyrimidine base or aza and/or deaza analogs thereof are useful in antiviral pharmaceutical compositions to treat retroviral infections.

- US Granted - USPTO

1993-08-10

Polynitrogen compound having two terminal cycles of the imide type, its preparation by conventional organic chemistry methods and its use as an additive for engine fuel. This compound complies with the general formula (I): ##STR1## in which R.sup.1, R.sup.2, R.sup.3, and R.sup.4 are as set forth in...

- Europe - EPO

1992-05-13

The invention relates to shaped polymeric complexes of metals from sub-group 8 of the Periodic Table with ligands of an organosiloxane copolycondensate (random, block or mixed) which is optionally crosslinked by means of Si-, Ti-, Zr- and/or Al-containing crosslinking agents. This copolycondensate...

- US Granted - USPTO

1981-04-28

This invention relates to the field of organic chemistry, and more particularly, to a method for the preparation of p-aminophenol.

- UK - IPO

1972-03-29

1,268,321. Phenoxyalkyl carboxylic acid derivatives. ORCHIMED S.A. 22 Jan., 1970 [31 Jan., 1969; 28 Aug., 1969], No. 3085/70. Heading C2C. Novel compounds I in which Y is -OH, -OCH 3 , -OC 2 H 5 , or -NR 1 R 2 ; A is -CH(CH 3 )-, -CH(CH 3 )CH 2 -, -C(CH 3 ) 2 - or -CHR A -(CH 2 ) n -; R A is H or C...

- US Applications - USPTO

2005-07-14

- US Granted - USPTO

2004-11-16

Novel compounds are provided having formula (I) where R1, R2, R3, R4, Z, X and * are defined herein. Also provided are antiviral methods for use and processes for synthesis of the compounds of formula (I).

- US Applications - USPTO

2004-08-26

- US Applications - USPTO

2004-07-01

The present invention relates to simplified processes for the preparation of pure hydrogen peroxide (H2O2). H2O2 is a known oxidizer and disinfectant that is used in many industrial processes having many uses in the pharmaceutical, electronic, food and water purification industries. The present...

- US Granted - USPTO

2003-07-29

This invention relates to the field of pharmaceutical and organic chemistry and provides naphthalene compounds, intermediates, formulations, and methods.

- China(Native) - SIPO

2003-03-05

本发明是一种从奥硝唑的消旋体利用酶法拆分制备光学纯的(S)-(-)-奥硝唑或/和(R)-( )-奥硝唑的方法。即使奥硝唑的消旋体在手性合成脂肪酶的作用下和醋酸乙烯酯反应生成(S)-(-)-奥硝唑的醋酸酯，纯化该酯，水解转化为光学纯的(S)-(-)-奥硝唑，(R)-( )-奥硝唑因为不反应，可通过纯化母液得到；或者先将奥硝唑的消旋体制备成醋酸酯，使醋酸酯在手性合成脂肪酶的作用下进行选择性水解得到光学纯的(S)-(-)-奥硝唑，而(R)-( )-奥硝唑则仍以醋酸酯的形式存在，该醋酸酯水解转化为光学纯的(R)-( )-奥硝唑。

- China - SIPO

2003-03-05

The present invention relates to a method of preparing optical pure (S)-(-)-ornidazole or/and (R)-( )-ornidazole by utilizing enzymatic resolution of recemate of ornidazole, and is characterized by that under the action of chiral synthetic lypase the racemate of ornidazole is reacted with vinyl...

- US Granted - USPTO

2002-11-26

Embodiments of the present invention generally relate to carrying out organic chemistry on solid supports comprising derivatised functionalities, methods for synthesizing said supports, methods for synthesizing compounds comprising amine groups or N-containing heterocycles using said solid...

- US Granted - USPTO

2002-11-12

- US Granted - USPTO

2002-07-09

This invention relates to the fields of pharmaceutical and organic chemistry and provides novel 3-benzyl-benzothiophenes which are a-substituted with ether, thioether amino, hydrazino, cyano or halo that are useful for the treatment of the various medical indications associated with post-menopausal...

- US Granted - USPTO

2002-06-04

The present invention relates to a process and a reagent useful for the synthesis of sulphanilide which is perhalogenated on the carbon borne by the sulphur atom of the sulphanilide function. This persulphonylation process is characterized in that it comprises a step of placing a nucleophile, whose...

- US Granted - USPTO

2002-05-07

This invention relates to the fields of pharmaceutical and organic chemistry and provides novel 1-benzyl-naphthyls which are -substituted with ether, thioether amino, cyano or halo that are useful for the treatment of the various medical indications associated with post-menopausal syndrome, as well...

- China(Native) - SIPO

2001-09-26

本发明涉及一种高立体选择性地合成二级丙炔醇类化合物的方法，以手性氨基醇或手性氨基二醇作为配体，在二氟甲磺酸金属试剂或三氟甲磺酸金属试剂和碱存在下，末端炔对醛的加成反应得到光学活性的二级丙炔醇类化合物。该方法具有反应条件温和，立体选择性高，价格便宜等优点。

- China - SIPO

2001-09-26

By utilizing chiral alkamine or chiral amino glycol as ligand and in the presence of difluoromesylic acid metal reagent or trifluoromesylic acid metal reagent and alkali, optically active secondary propiolic alcohol compound is obtained through the addition reaction of terminal alkyne to aldehyde....

- US Applications - USPTO

2001-09-06

- US Granted - USPTO

2001-08-07

- PCT - WIPO

2001-01-04

- US Granted - USPTO

2000-11-21

The invention relates to a compound having the formula I ##STR1## wherein R.sup.1 is hydroxy, (1-6C)alkoxy or NR.sup.4 R.sup.5, R.sup.4 and R.sup.5 being independently hydrogen, (1-6C)alkyl, (3-7C)cycloalkyl, (2-6C)alkenyl, (4-6C)aryl or (5-7C)aralkyl, the aryl groups of which may be optionally...

- Europe - EPO

2000-06-21

Twelve new modifications of C.I. Pigment Red 53:2, i.e. N-(2-oxo-naphth-1-yl-N'-(4-chloro-6-methyl-2-sulfophenyl)hydrazone, (partial) calcium salt, or its tautomeric or cis/trans-isomeric forms are claimed. Twelve new modifications of C.I. Pigment Red 53:2, i.e....

- US Granted - USPTO

2000-01-25

This invention relates to the field of pharmaceutical and organic chemistry and provides benzothiophene compounds, intermediates, formulations, and methods.

- US Granted - USPTO

1999-09-28

This invention relates to the field of pharmaceutical and organic chemistry and provides benzothiophene compounds, intermediates, formulations, and methods.

- US Granted - USPTO

1999-09-07

This invention relates to the field of pharmaceutical and organic chemistry and provides benzothiophene compounds, intermediates, formulations, and methods.

- China(Native) - SIPO

1999-07-21

本发明是制备光学纯的苯并咪唑类抗消化性溃疡药物的方法，是以光学纯的联二萘酚类化合物、联二菲酚或酒石酸衍生物为包结主体，以外消旋的苯并咪唑类抗消化性溃疡药物为客体，用一种构型的光学纯包结主体，采用包结拆分的方法同时制得e.e.值大于９５％的两种构型的光学纯苯并咪唑类抗消化性溃疡药物，且两种构型的收率均大于６０％，分离纯化工艺十分简单，拆分剂可大量回收循环使用，具有简便、高效、成本低、易于工业化推广的优点。

- China - SIPO

1999-07-21

The method for preparing optical pure benzimidazoles drug for peptic ulcer diseases is characterized by that it uses optical pure binaphthyl phenol type compound, diphenanthrenol or tartaric derivative as inclusion host compound, and uses racemic benzimidazoles drug for peptic ulcer as guest...

- France - INPI

1999-04-30

A viscous liquid deoxidant (I) contains a reactive metal powder, an adhesive agent and water. Also claimed are deoxidant sheets comprising a sheet substrate coated with (I) and a cover sheet, at least one of the sheets being gas permeable.TF - TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred...

- France - INPI

1999-04-30

The electroluminescent system is based on a mineral or hybrid organo-mineral matrix, which has good resistance to heat, oxidation and corrosive chemicals as well as good mechanical properties.- DETAILED DESCRIPTION - The matrix is obtained by a sol-gel polymerization of an organo-silicious or...

- France - INPI

1999-02-19

Treating solid material comprises applying at least a gas stream on at least a micro dispersion of at least a grafting reagent produced on the material - DETAILED DESCRIPTION - Method for treating solid material whose chemical structure defines the reactive protogenous hydrophilic functions...

- China(Native) - SIPO

1998-03-04

本发明是Ｎ（Ｎ代表氨基，以下同）－保护天冬甜肽的制备方法，从Ｌ－天冬氨酸出发，一步合成Ｎ－保护的__唑烷酮，在接肽反应中使用醋酸酯等低毒或无毒溶剂，该方法无β－异构体生成，合成路线短，生产成本低，反应产率高，有利于工业化生产。

- Europe - EPO

1998-03-04

This invention relates to the field of pharmaceutical and organic chemistry and provides naphthalene compounds, intermediates, formulations, and methods. The naphthalene compounds have the formula: wherein R<1> is -H, -OH, -O(C1-C4 alkyl), -OCO(C1-C6 alkyl), -O-CO-O(C1-C6 alkyl),...

- China - SIPO

1998-03-04

The present invention relates to a preparation method of N (N represents amino, the same below) -protective aspartame peptide. It is characterized by that said invention uses L -aspartic acid to implement one-step synthesis of N -protective ephedroxane, and uses low-toxic or non-toxic solvents of...

- US Granted - USPTO

1998-01-06

This invention relates to the fields of pharmaceutical and organic chemistry and provides novel 3-benzyl-benzofurans which are .alpha.-substituted with ether, thioether, amino, hydrazino, cyano or halo that are useful for the treatment of the various medical indications associated with...

- France - INPI

1995-12-01

A gas-fired power station connected to a mains network is claimed. The power station has several gas engines. Heat generated by the engines is recovered from the water cooling circuit and/or the flue gas circuit. The flue gas is evacuated into a condensation tower, where it is cooled by a low-temp....

- US Granted - USPTO

1994-08-23

Formed spherical polymeric complexes of metals of the 8th subgroup of the periodic system with ligands of an organosiloxane copolycondensate optionally cross-linked by means of cross-linking agents containing Si, Ti, Zr and/or Al (statistical, block-shaped or mixed). This copolycondensate consists...

- France - INPI

1993-09-17

The prods. 2-(1-(1,1-dimethylethyl)-1H-tetrazole-5-yl)benzene-boronic acid and 2-(2-(1,1-dimethylethyl)-2H-tetrazole-5-yl)-benzene boronic acid are new. Also claimed are their prepn. and use to obtain cpds. of formula (I). The cpds. are prepared according to the specified reaction scheme. The...

- China(Native) - SIPO

1993-07-21

本发明涉及一种从三氟甲基__唑酮与活化的碳-碳不饱和键化合物合成三氟甲基吡咯类化合物的方法。该方法是在有机溶剂和碱存在下进行室温反应。具有反应条件温和、操作简便和收率高的特点。该法还适用于制备三氟甲基吡咯啉类化合物。

- China - SIPO

1993-07-21

By said process, a reaction is carried out at room temp. and is the presence of organic solvent and alkali. The features of this process are a mild reaction condition, simple operation, and high yield. Said process is also applicable to preparation of trifluoro-methyl-pyrro line compound.

- PCT - WIPO

1992-04-30

(EN) The present invention concerns organic chemistry and more particulary therapeutic chemistry. It has as its subject novel (4-substituted phenyl) 4-oxy 1-aminobutane of the general formula (I) in which X is a nitrogen atom or >CH-NH, and R is a cyclic substituent chosen from the group...

- France - INPI

1989-09-29

Organic chemistry. The invention relates to products obtained by mixing an imidazole of formula I or an imidazoline of formula II with a polycarboxylic acid of formula III or IV. where R1-R6 = H or a hydrocarbon radical, n = 0-6 and m = 2-6 A1 = -CH2COOH A2-A5 = H, an alkyl radical, -CH2COOH,...

- US Granted - USPTO

1988-04-19

The present invention relates to organic chemistry.The novel compound 2-oxo-4-(2'-difluoromethylthiophenyl)-5-methoxycarbonyl-6-methyl-1,2,3,4-t etrahydropyrimidine has the formula: ##STR1## Said compound displays coronary-dilating activity and can be utilized in medicine.

- PCT - WIPO

1987-09-11

Novel compounds suitable for inclusion in a ferroelectric smectic liquid crystal mixture, having formula (I), where the rings are independently phenyl, cyclohexyl or pyrimidyl, n is 0 or 1, m is 1, 2 or 3 (m n is 1, 2 or 3), A, B, D, E are independently H or F, Z is a linking group or a single...

- UK - IPO

1983-11-16

A 4-acyl-o-phenylenediamine is selectively sulfonated on the amino group mela to the acyl group to provide an important intermediate for benzimidazole pharmaceuticals. Some of the intermediates are new to organic chemistry.

- Europe - EPO

1983-05-25

The metal being chosen from the group made up of the metals of groups VIII, IB, IIB of the periodic classification of the elements, as well as chromium, vanadium, molybdenum and tungsten, the said metal is introduced in an oxidised form into the carrier, generally by ion exchange. According to the...

- UK - IPO

1964-08-19

The invention comprises a -dithiosemicarbazones of the general formula: wherein R3 and R4 are the same or different and each is a hydrogen atom, or is a straight or branched alkyl group of 1-10 carbon atoms, provided that when both R3 and R4 are alkyl groups the total in...

- France - INPI

2008-05-16

The strip (5) has a fixed part (6) extending horizontally in a door beyond from its pivoting hinge (11), in a rear direction of vehicle. A mobile part (7) extends the fixed part and turns around a vertical axle (9) at a rear end of the fixed part for forming an open angle with the fixed part by...