Radiation curable pressure sensitive adhesive
US4305854A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 27, 1979 |
| Grant date | Dec 15, 1981 |
| Priority date | — |
| Expiry date | Sep 27, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S525/92
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A pressure sensitive adhesive formed by exposure of a mixture comprising (I) a liquid, substantially water-insoluble monomeric composition, containing zero percent free isocyanate groups, which comprises the reaction product of (i) one equivalent of an isocyanate containing intermediate which is, itself, the reaction product of about one equivalent of an organic, monomeric compound containing more than one active hydrogen with two equivalents of an organic polyisocyanate, and (ii) one equivalent of a monomeric olefinically unsaturated compound containing exactly one active group; (II) a tackifier and (III) a polymerization inhibitor to a source of ultraviolet or electron beam radiation whereby the composition is rendered tacky.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.