Photosetting adhesive from unsaturated oligomer, photoinitiator, and betaine-forming mixture of unsaturated tert.amine and unsaturated acid
US4297185A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 18, 1979 |
| Grant date | Oct 27, 1981 |
| Priority date | — |
| Expiry date | Sep 18, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31942
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A photo-hardenable adhesive composition particularly suitable for use in the bonding of glass to other materials, especially plastics, as in the production of safety glass and armoured glass laminates and comprising PA1 (A) a photopolymerisable ester of an .alpha.,.beta.-ethylenically unsaturated acid and a hydroxylated urethane or urea and having a moleculare weight of 500 to 10,000 PA1 (B) a photoinitiator PA1 (C) a substituted or unsubstituted aliphatic or cycloaliphatic N,N-dialkylamino alcohol ester of an .alpha.,.beta.-ethylenically unsaturated carboxylic acid, said alcohol having an alkylene moiety of up to six carbon atoms between hydroxy and the amino functions, and PA1 (D) an .alpha.,.beta.-ethylenically unsaturated carboxylic acid in an amount equal to one mole per mole of C, (C) and (D) being capable of reacting together to form a betaine, and preferably PA1 (E) at least one further copolymerisable monomer or oligomer and which may comprise an excess of (C) or (D) over equimolar.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.