公开(公告)号：DE2423283A1

公开(公告)日：1975-12-04

申请号：DE2423283

申请日：1974-05-14

Applicant: BASF AG

Inventor： ELSCHNIG GERT DR ,  DOTZAUER BERNHARD DR ,  BRONSTERT KLAUS DR ,  SCHILDER WOLFGANG ,  DISTLER DIETER DR ,  KLAERNER PETER DR

IPC: C03C17/32

公开(公告)号：DE2328768A1

公开(公告)日：1975-01-09

申请号：DE2328768

申请日：1973-06-06

Applicant: BASF AG

Inventor： SCHMIDT HORST DR ,  KRAUSE HANS-JOACHIM DR ,  DRUSCHKE WOLFGANG DR ,  ELSCHNIG GERT DR

IPC: C08G6/02 ,  C09J161/02 ,  C09J3/16

公开(公告)号：CH602808A5

公开(公告)日：1978-08-15

申请号：CH1070174

申请日：1974-08-05

Applicant: BASF AG

Inventor： ELSCHNIG GERT DR ,  HARTMANN HEINRICH DR ,  DRUSCHKE WOLFGANG DR ,  QUESADA LUCAS FRANCISCO DR

IPC: C08F220/18 ,  C08F220/02 ,  C09J3/16

Abstract: 1469682 Liquid acrylic ester coplymers BASF AG 6 Aug 1974 [8 Aug 1973 (2)] 34580/74 Heading C3P A liquid acrylic ester copolymer comprises: (a) 55-97% by weight of an acrylic acid ester of a non-tertiary monohydric alkanol of 3-12 carbon atoms; (b) 3-25% by weight of an acrylic acid alkyl ester and/or a methacrylic acid alkyl ester, each said ester containing at least one hydroxyl group; and (c) 0-20% by weight of a further monoolefinically unsaturated monomer; the average molecular weight of the copolymer being 1,000-10,000 and its pour point being below +15‹ C. Component (6) is preferably an ester of an alkanol or haloalkanol, each having 2-6 carbon atoms and 2 or 3 hydroxyl groups. The optional monomer (c) may be a vinyl ester of a saturated aliphatic carboxylic acid of 2-12 carbon atoms; a monovinyl aromatic monomer; a nitrile of an α,#- monoolefinically unsaturated carboxylic acid of 3-5 carbon atoms; or a methacrylic or acrylic acid ester of a tertiary alkanol. The copolymer is preferably produced by copolymerization of an appropriate monomer mixture, using a free-radical catalyst and a regulator, at 100-160‹ C. and at least partly under reduced pressure. In examples are formed the following copolymers: (1) n-butyl acrylate and 1,4- butanediol monoacrylate; (2) n-butyl acrylate and 2-hydroxypropyl acrylate; (3) n-butyl acrylate, styrene and 2-hydroxypropyl acrylate. A pressure-sensitive adhesive may be prepared by reacting: (a) 28-94% by weight of the liquid acrylic ester copolymer of the invention; (b) 5-60% by weight of an amorphous, thermoplastic tackifying resin of softening point 40-140‹ C. and molecular weight 200-7,500; and (c) 1-12% by weight of an organic polyisocyanate.

公开(公告)号：CH594572A5

公开(公告)日：1978-01-13

申请号：CH599175

申请日：1975-05-09

Applicant: BASF AG

Inventor： ELSCHNIG GERT DR ,  DOTZAUER BERNHARD DR ,  BRONSTERT KLAUS DR ,  SCHILDER WOLFGANG ,  DISTLER DIETER DR ,  KLAERNER PETER DR

IPC: C03C17/32