Adhesive for glass laminate comprising silane-modified ethylene copolymer

• US 5,075,382 A
• Filed: 10/22/1990
• Issued: 12/24/1991
• Est. Priority Date: 06/11/1986
• Status: Expired due to Term

• Current Assignee: Sumitomo Chemical Company Limited
• Original Assignee: Sumitomo Chemical Company Limited
• Inventors: Furukawa, Kazunori, Kawakita, Toshio, Ohmae, Tadayuki, Mashita, Kentaro
• Primary Examiner(s): Marquis, Melvyn I.
• Assistant Examiner(s): JAGANNATHAN, VASUDEVAN SALEM
• Application Number:
  US07/601,607
• Time in Patent Office: 428 Days
• Field of Search: 525/285, 525/288, 526/272, 428/429, 428/442
• US Class Current: 525/285
• CPC Class Codes: C08F 230/085 the monomer being a polymerisable silane, e.g. (meth)acryloyloxy trialkoxy silanes or vinyl trialkoxysilanes
• CPC Class Codes: C08F 255/02 on to polymers of olefins having two or three carbon atoms
• CPC Class Codes: C09J 151/06 grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
• CPC Class Codes: Y10T 428/31612 As silicone, silane or siloxane
• CPC Class Codes: Y10T 428/31649 Ester, halide or nitrile of addition polymer

Abstract

A silane-modified ethylene copolymer is disclosed, which is prepared by graft copolymerizing from 0.1 to 10 parts by weight of a trialkoxyvinyl silane to 100 parts by weight of an ethylene/(meth)acrylic acid ester/maleic anhydride copolymer in the presence of a peroxide catalyst. Also, a process for producing a silane-modified ethylene copolymer and an adhesive comprising the copolymer are disclosed. The silane-modified ethylene copolymer of the invention is excellent in not only adhesion to metals, glass, polar high-molecular weight materials, or polyolefins but also maintenance of water-resistant adhesion to glass.

Claims

1. An adhesive for glass/polyamide laminates, prepared by graft copolymerizing from 0.1 to 10 parts by weight of trimethoxyvinyl silane and/or triethoxyvinyl silane to 100 parts by weight of an ethylene/(meth)acrylic acid ester/maleic anhydride copolymer having a (meth)acrylic acid ester unit content of from 0.3 to 12 mol % and a maleic anhydride unit content of from 0.2 to 5 mol % and having a melt flow index of from 1 to 200 g/10 minutes in the presence of a peroxide catalyst.