Adhesives and method for making same
US6608134B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 5, 2000 |
| Grant date | Aug 19, 2003 |
| Priority date | — |
| Expiry date | May 5, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09J2301/302
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
This invention relates to an adhesive composition comprising: microgels of at least one acrylic polymer; and an interlinking polymer covalently bonding at least some of said microgels to each other through said interlinking polymer. In one embodiment, the adhesive further comprises at least one non-gelled polymer, said interlinking polymer covalently bonding at least some of said microgels to said non-gelled polymer.In one embodiment, the invention relates to an aqueous dispersion, comprising: water; microgels of at least one acrylic polymer dispersed in said water; and at least one interlinking polymer capable of covalently bonding said microgels to each other through said interlinking polymer. In one embodiment, the dispersion further comprises at least one non-gelled polymer, and the interlinking polymer is capable of covalently bonding said microgels to said non-gelled polymer. This invention also relates to an adhesive composition made by heating the foregoing aqueous dispersion at a sufficient temperature and for an effective period of time to covalently bond at least some of said microgels to each other through said interlinking polymer, and optionally covalently bond at lea…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.