Patent · US Expired

Bonding method employing film adhesives containing an epoxide resin

US4218279A · kind A · utility

22Cited by
9References
12Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJun 27, 1978
Grant dateAug 19, 1980
Priority date
Expiry dateJun 27, 1998

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T428/31522
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

A layer of a liquid composition containing an epoxide resin as the sole photopolymerizable component, a heat-activated curing agent for epoxide resins, and preferably a photopolymerization catalyst, is exposed to actinic radiation until the layer solidifies to form an essentially solid, continuous film due to photopolymerization of the epoxide resin through epoxide groups, the resin remaining, however, still thermosettable by virtue of residual epoxide groups. The film so formed is sandwiched between, and in contact with, surfaces to be bonded together, and the assembly is heated to cure the epoxide resin.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.