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公开(公告)号：DE59104679D1
公开(公告)日：1995-03-30
申请号：DE59104679
申请日：1991-09-30
Applicant: BASF AG
IPC: A61K8/72 , A61K8/00 , A61K8/81 , A61Q5/06 , C08F8/44 , C08F26/10 , C08F220/04 , C08F220/06 , C08F220/10 , C08F220/18 , C08F226/10
Abstract: A terpolymer suitable for use as a film former in hair setting compositions is obtainable by free radical polymerization of 10%-24% by weight of N-vinylpyrrolidone, 46%-74% by weight of tert-butyl acrylate or methacrylate and 16%-30% by weight of acrylic or methacrylic acid, whose carboxyl groups may be partially or completely neutralized with an organic amine, ammonia or a basic alkali metal compound and which has a K value of from 25 to 65.
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公开(公告)号：ES2052665T3
公开(公告)日：1994-07-16
申请号：ES88116095
申请日：1988-09-29
Applicant: BASF AG
Inventor： GOERTZ HANS-HELMUT DR , STRAUB FERDINAND DR , VOGEL FRIEDRICH DR , FROSCH FRANZ DR , NAEGELE PAUL , RAUBENHEIMER HANS-JUERGEN
IPC: C08F2/06 , C08F4/04 , C08F8/14 , C08F216/18 , C08F222/16
Abstract: The process involves the free-radical copolymerisation of maleic anhydride and of vinyl alkyl ethers and the subsequent reaction of the copolymer with alkanol and is characterised in that the vinyl alkyl ether component is in excess in the reaction mixture in all phases of the polymerisation, the free-radical copolymerisation is carried out in acetone, and the acetone is removed by distillation at temperatures of up to 70 DEG C during or after the ester formation.
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Patent Agency Ranking
公开(公告)号：ES2044650T3
公开(公告)日：1994-01-01
申请号：ES91108977
申请日：1991-06-01
Applicant: BASF AG
Inventor： VOGEL FRIEDRICH DR , FROSCH FRANZ DR , WESTENFELDER HORST
IPC: A61K8/72 , A61K8/00 , A61K8/81 , A61K9/00 , A61K9/06 , A61K9/107 , A61K9/70 , A61K31/74 , A61K47/32 , A61Q17/00 , A61Q19/00 , A61Q19/10 , A61K7/48 , A61K7/06 , A61L25/00
Abstract: The use of copolymers which are selectively hydrogenated on the olefinic double bond and are composed of …… A) 50 to 65% by weight of styrene, … B) 35 to 50% by weight of butadiene and … C) 0 to 5% by weight of other copolymerisable monomers … in cosmetic and pharmaceutical compositions.
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公开(公告)号：DE59100496D1
公开(公告)日：1993-11-25
申请号：DE59100496
申请日：1991-06-01
Applicant: BASF AG
Inventor： VOGEL FRIEDRICH DR , FROSCH FRANZ DR , WESTENFELDER HORST
IPC: A61K8/72 , A61K8/00 , A61K8/81 , A61K9/00 , A61K9/06 , A61K9/107 , A61K9/70 , A61K31/74 , A61K47/32 , A61Q17/00 , A61Q19/00 , A61Q19/10 , A61K7/48 , A61K7/06 , A61L25/00
Abstract: The use of copolymers which are selectively hydrogenated on the olefinic double bond and are composed of …… A) 50 to 65% by weight of styrene, … B) 35 to 50% by weight of butadiene and … C) 0 to 5% by weight of other copolymerisable monomers … in cosmetic and pharmaceutical compositions.
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公开(公告)号：DE4213972A1
公开(公告)日：1993-11-04
申请号：DE4213972
申请日：1992-04-29
Applicant: BASF AG
Inventor： MEYER HARALD DR , SANNER AXEL DR , FROSCH FRANZ DR , RICHTER HANS DR
IPC: C08K5/41 , C08F16/12 , C08F216/14 , C08K3/00 , C08K3/30 , C08K3/32 , C08K5/00 , C08K5/1535 , C08L29/10 , C08L33/02 , C08L35/00 , C08L35/08 , C08K5/13
Abstract: PCT No. PCT/EP93/00954 Sec. 371 Date Sep. 30, 1994 Sec. 102(e) Date Sep. 30, 1994 PCT Filed Apr. 20, 1993 PCT Pub. No. WO93/22374 PCT Pub. Date Nov. 11, 1993A process for stabilizing a copolymer of maleic acid or maleic anhydride and vinyl alkyl ethers against a reduction in molecular weight in aqueous solution or in the solution of an organic solvent by adding 0.001 to 10% by weight, based on the copolymer, of a reducing agent, a tert-butyl-containing phenol or a mixture thereof.
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公开(公告)号：DE4138763A1
公开(公告)日：1993-05-27
申请号：DE4138763
申请日：1991-11-26
Applicant: BASF AG
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27.发明专利
公开(公告)号：AT82579T
公开(公告)日：1992-12-15
申请号：AT88116095
申请日：1988-09-29
Applicant: BASF AG
Inventor： GOERTZ HANS-HELMUT DR , STRAUB FERDINAND DR , VOGEL FRIEDRICH DR , FROSCH FRANZ DR , NAEGELE PAUL , RAUBENHEIMER HANS-JUERGEN
IPC: C08F2/06 , C08F4/04 , C08F8/14 , C08F216/18 , C08F222/16
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