公开(公告)号：US3634371A

公开(公告)日：1972-01-11

申请号：US3634371D

申请日：1969-07-18

Applicant: BASF AG

Inventor： POHLEMANN HEINZ ,  ROEMER FRITHJOF ,  SWOBODA JOHANN

IPC: C08F2/04 ,  C08F4/30 ,  C08F4/32 ,  C08F3/76 ,  C08F15/22

CPC classification number: C08F4/32

Abstract: POLYMERIZATION OF OLEFINICALLY UNSATURATED ORGANIC COMPOUNDS, PARTICULARLY MIXTURES OF MONOMERS CONTAINING AT LEAST 80% BY WEIGHT OF ACRYLONITRILE, IN AN ORGANIC SOLVENT WITH A SALT OF PEROXYDISULFURIC ACID WHICH IS SOLUBLE IN THE SAID SOLVENT. PALE TO COLORLESS AND CLEAR POLYMERS ARE OBTAINED.

公开(公告)号：US3634300A

公开(公告)日：1972-01-11

申请号：US3634300D

申请日：1970-11-04

Applicant: BASF AG

Inventor： FISCHER HERMANN ,  HEIL EDUARD ,  SWOBODA JOHANN ,  THOMA RICHARD

IPC: C08F6/10 ,  C08F47/22

CPC classification number: C08F6/10

Abstract: A CONTINOUS PROCESS FOR THE REMOVAL OF RESIDUAL MONOMERS FROM SOLUTION OF ACRYLONITRILE POLYMERS IN DIMETHYLFORMAMIDE AND FOR CONCENTRATING THE SOLUTIONS IN A SEQUENCE OF SEPARATING ZONES PRESSURE RELEASE ZONES, HEATING ZONES AND PRESSURE RELEASE ZONES. THE PROCESS IS DISTINGUISHED BY SHORT RESIDENCE TIMES AND ONLY SLIGHT DAMAGE TO THE POLYMER SOLUTIONS. THE SOLUTIONS OBTAINED MAY SERVE FOR THE PRODUCTION OF FILAMENTS, THREADS OR FIBERS.

公开(公告)号：CA1244568A

公开(公告)日：1988-11-08

申请号：CA470883

申请日：1984-12-21

Applicant: BASF AG

Inventor： HAMBRECHT JUERGEN ,  ILLERS KARL H ,  ECHTE ADOLF ,  SWOBODA JOHANN

IPC: C08L25/14 ,  C08L51/04 ,  C08L71/12 ,  C08L71/04

Abstract: The invention relates to a thermoplastic molding material which contains a mixture of (I) from 95 to 5% by weight of a polyphenylene ether and (II) from 5 to 95% by weight of a copolymer consisting of A1) from 74 to 99 parts by weight of a monovinylaromatic monomer, A2) from 1 to 26 parts by weight of an alkyl acrylate where alkyl is of not more than 8 carbon atoms, and B) from 0 to 20 parts by weight of an elastomer component which has a glass transition temperature ? 0.degree.C, the sum of the number of parts by weight being 100. This thermoplastic molding material possesses sufficiently high heat distortion resistance coupled with good resistance to chemicals and well balanced mechanical properties.

公开(公告)号：CA1255832A

公开(公告)日：1989-06-13

申请号：CA478834

申请日：1985-04-11

Applicant: BASF AG

Inventor： MITULLA KONRAD ,  HAMBRECHT JUERGEN ,  ECHTE ADOLF ,  SWOBODA JOHANN ,  SIEBEL PETER ,  SCHWAAB JOSEF ,  FRANK HERBERT

IPC: C08L51/00 ,  C08L69/00

Abstract: - 20- O.Z. 0050/37071 A thermoplastic molding material consists of from 10 to 90 parts by weight of a polycarbonate A and from 90 to 10 parts by weight of a graft copolymer B having a mean particle size of from 200 to 700 nm (d50 value of the integral mass distribution). The graft polymer B is formed from an elastomer (rubber) b1), which accounts for from 10 to 80% by weight, and a grafted shell b2), which accounts for from 90 to 20% by weight, the percentages in each case being based on B). The elastomer b1) is composed of from 50 to 99.9% by weight of an alkyl acrylate, where alkyl is of 1 to 8 carbon atoms, and from 0.1 to 5% by weight of a copolymerizable polyfunctional crosslinking monomer. The grafted shell b2) is produced in three stages and contains, as graft monomers, b2a1) from 5 to 40% by weight of a monoethylenically unsaturated aromatic hydrocarbon of not more than 12 carbon atoms, in the first stage, b2a2) from 15 to 50% by weight of a mixture of a monoethylenically unsaturated aromatic hydrocarbon of not more than 12 carbon atoms and a copolymerizable ethylenically unsaturated monomer, in a weight ratio of from 90:10 to 60:40, in the second stage, and b2a3) from 10 to 85% by weight of an alkyl (meth) acrylate in the third stage, the percentages in each case being based on b2).

公开(公告)号：CA1254324A

公开(公告)日：1989-05-16

申请号：CA470882

申请日：1984-12-21

Applicant: BASF AG

Inventor： HAMBRECHT JUERGEN ,  ILLERS KARL H ,  ECHTE ADOLF ,  SWOBODA JOHANN

IPC: C08L25/14 ,  C08L51/04 ,  C08L71/12 ,  C08L71/04

Abstract: The invention relates to a thermoplastic molding material which contains a mixture of (I) from 95 to 5% by weight of a polyphenylene ether and (II) from 5 to 95% by weight of a copolymer consisting of A1) from 85 to 99 parts by weight of a monovinylaromatic monomer, A2) from 1 to 5 parts by weight of an alkyl methacrylate where alkyl is of not more than 8 carbon atoms, and B) from 0 to 20 parts by weight of an elastomer component which has a glass transition temperature ? 0.degree.C, the sum of the number of parts by weight being 100. This thermoplastic molding material possesses sufficiently high heat distortion resistance coupled with good resistance to chemicals and well balanced mechanical properties.

公开(公告)号：CA2102821A1

公开(公告)日：1994-05-12

申请号：CA2102821

申请日：1993-11-10

Applicant: BASF AG

Inventor： POHL SIEGMUND ,  LEHRICH FRIEDHELM ,  BRUCHMANN BERND ,  MINGES ROLAND ,  TESCH HELMUT ,  SWOBODA JOHANN ,  GENZ MANFRED ,  SCHOLZ GUENTER ,  STREU JOHANN

IPC: C07C265/10 ,  C07C265/12 ,  C07C267/00 ,  C08G18/00 ,  C08G18/02 ,  C08G18/71 ,  C08K5/29

Abstract: The invention relates to novel 4,4'-disubstituted bis(2,6-diisopropylphenyl)carbodiimides of the formula (I) in which R is a 1-methyl-1-phenylethyl, phenoxy or tert-butyl radical, to a process for their preparation and to their use as stabilisers with respect to the hydrolytic degradation of ester group-containing products of addition and condensation polymerisation, and to the novel compounds which can be used to prepare them, namely 4-(1-methyl-1-phenylethyl)-2,6-diisopropylphenyl, 4-phenoxy-2,6-diisopropylphenyl and 4-tert-butyl-2,6-diisopropylphenyl isocyanates.

公开(公告)号：CA1255833A

公开(公告)日：1989-06-13

申请号：CA478835

申请日：1985-04-11

Applicant: BASF AG

Inventor： MITULLA KONRAD ,  HAMBRECHT JUERGEN ,  ECHTE ADOLF ,  SWOBODA JOHANN ,  SIEBEL PETER ,  SCHWAAB JOSEF ,  FRANK HERBERT

IPC: C08L51/00 ,  C08L51/04 ,  C08L69/00

Abstract: - 20 - O.Z. 0050/37072 A thermoplastic molding material consists of a polycarbonate A and a graft copolymer B, the latter consisting of an elastomer (rubber) b1) and a shell b2) grafted onto the elastomer. The elastomer b1) contains, as copolymerized units, from 35 to 100% by weight of a diene from the group consisting of the conjugated dienes of 4 or 5 carbon atoms, and can contain, as copolymerized units, from 0 to 65% by weight of a monomer from the group consisting of the alkyl acrylates or alkyl methacrylates, where alkyl is of 1 to 8 carbon atoms. The shell b2) is obtained in a conventional manner by successive polymerization of the monomers constituting the shell, in two process steps, in the presence of the elastomer b1); in a first process step, from 10 to 90% by weight of a mixture of a vinylaromatic hydrocarbon and one or more ethylenically unsaturated monomers which differ from the said hydrocarbon, in a weight ratio of from 90:10 to 60:40, are first incorporated as copolymerized units, followed by the polymerization of from 90 to 10% by weight of a monomer from the group consisting of the alkyl acrylates or of the alkyl methacrylates, where alkyl is of 1 to 8 carbon atoms. The molding material is used for the production of shaped articles.

公开(公告)号：CA2102821C

公开(公告)日：1998-11-03

申请号：CA2102821

申请日：1993-11-10

Applicant: BASF AG

Inventor： POHL SIEGMUND ,  LEHRICH FRIEDHELM ,  SCHOLZ GUENTER ,  STREU JOACHIM ,  TESCH HELMUT ,  SWOBODA JOHANN ,  GENZ MANFRED ,  BRUCHMANN BERND ,  MINGES ROLAND

IPC: C07C265/10 ,  C07C265/12 ,  C07C267/00 ,  C08G18/00 ,  C08G18/02 ,  C08G18/71 ,  C08K5/29

Abstract: 4,4'-disubstituted bis-(2,6-diisopropylphenyl)carbodiimides of the formula (I) (see fig. I) where R is 1-methyl-1-phenylethyl, phenoxy or tert-butyl, a process for their preparation, their use as stabilizers against hydrolytic degradation of polyaddition and polycondensation products containing ester groups, and the novel 4-(1-methyl-1-phenylethyl)-2,6-diisopropyl-, 4-phenoxy-2,6-diisopropyl- and 4-tert-butyl-2,6-diisopropylphenyl isocyanates which can be used for their preparation.

公开(公告)号：CA1263992A

公开(公告)日：1989-12-19

申请号：CA495489

申请日：1985-11-15

Applicant: BASF AG

Inventor： BRANDT HERMANN ,  FISCHER HERMANN ,  DREHER HERMANN ,  HEIL EDUARD ,  HAMBRECHT JUERGEN ,  NAARMANN HERBERT ,  ECHTE ADOLF ,  GAUSEPOHL HERMANN ,  SIEBEL PETER ,  SWOBODA JOHANN ,  SCHWOEBEL GERD ,  NIKLES ALBERT

IPC: B01J10/00 ,  B01J19/18 ,  C08G65/44

Abstract: Disclosed is a process of preparation of polyphenylene ethers from monohydric phenols, which possess alkyl substituents in the two ortho-positions and, if desired, in the meta-position, but not in the para-position, by an oxidative coupling reaction with oxygen at from 15 to 50.degree.C and under from 1 to 10 bar in the presence of a catalyst complex, of a solvent and, if required, of an activator. In this process,the conversion of the phenols is carried out in two or more reaction zones. Some or all of the solvent, catalyst complex phenols and where relevant, activator are initially added to one of the reaction zones and are circulated in the other reaction zone and about 60-100% of the stoichiometric amount of oxygen required for the oxidative coupling is introduced into the first reaction zone and from 0 to about 40% of the said stoichiometric amount is introduced into the second reaction zone. This process is interesting in that it makes it possible to carry out oxidative coupling of phenols with oxygen in a very economic and reliable manner, with very high space-time yields, formation of only a small amount of by-products, and minimum emissions of gas and volatile components.

公开(公告)号：CA1239746A

公开(公告)日：1988-07-26

申请号：CA478833

申请日：1985-04-11

Applicant: BASF AG

Inventor： MUENCH VOLKER ,  HAMBRECHT JUERGEN ,  HIMMELE WALTER ,  ECHTE ADOLF ,  SWOBODA JOHANN

IPC: C08G65/44 ,  C08L71/04

Abstract: High molecular weight polyphenylene ethers are prepared from monohydric phenols by an oxidative coupling reaction with oxygen in the presence of a solvent and of a catalyst complex consisting of a copper salt and an organic amine of the general formula where R1 is C2-C20-alkylidene, preferably C2-C12-alkylid-ene, or alkenylidene, R2 is H or C1-C12-alkyl, preferably C1-C4-alkyl, or C5-C8-cycloalkyl, each of which is unsubstituted or substituted by functional groups, and n is an integer from 1 to 4, preferably 1 or 2. Preferred functional groups are -OR3, -NHR3 or -SR3, in which R3 is H C1-C12-alkyl or C5-C8-cycloalkyl, and the most suitable amines are 3-tert.-butoxypropylamine, 4-tert.-butoxy-butylamine, 3-tert.-butoxy-2-methylpropylamine, 3-tert.-butoxy-2,3-dimethylpropylamine, 3-tert.-butoxy-2-methyl-octylamine and N-methyl-N-(4-tert.-butoxybutyl)-amine. The polyphenylene ethers can be processed to moldings by a thermoplastic method.