Pressure-sensitive adhesive having excellent heat-resistance, adhesive sheets thereof, and methods for producing them
US5502085A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 1, 1994 |
| Grant date | Mar 26, 1996 |
| Priority date | — |
| Expiry date | Aug 1, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09J2301/302
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A photopolymerized acrylic pressure-sensitive adhesive having excellent heat-resistance, an adhesive sheet using the adhesive, and methods for producing the adhesive and the adhesive sheet, are disclosed. The pressure-sensitive adhesive sheet having excellent heat resistance comprising a photopolymerization product of a composition comprising; PA1 a) 100 parts by weight of monomers comprising from 70 to 100% by weight of a (meth)acrylic acid alkyl ester having from 2 to 14 carbon atoms in the alkyl moiety, and from 30 to 0% by weight of a monoethylenically unsaturated monomer copolymerizable with the (meth)acrylic acid alkyl ester, PA1 b) from 0.02 to 20 parts by weight of a radical chain inhibitor, PA1 c) up to 5 parts by weight of a polyfunctional (meth)acrylate as a crosslinking agent, and PA1 d) from 0.01 to 5 parts by weight of a photopolymerization initiator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.