Heat-activatable adhesive composition
US5905099A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 6, 1995 |
| Grant date | May 18, 1999 |
| Priority date | — |
| Expiry date | Nov 6, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2367/00
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A heat-activatable adhesive comprising an acrylic copolymer, which copolymer comprises a monomer consisting of an acrylate or methacrylate ester of a non-tertiary alkyl alcohol having a Tg of about 0.degree. C. or lower; a monomer consisting of an acrylate or methacrylate ester of an alcohol having a Tg of at least about 5.degree. C.; and a functional monomer. Selected embodiments include a retroreflective article comprising a film having a substantially flat surface and a structured surface, the structured surface comprising a plurality of precisely shaped projections, a colored layer disposed on the structured surface and adhered thereto in a plurality of discrete locations, and a heat-activatable adhesive layer disposed on the colored layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.