Adhesives comprising poly(isobutylene) copolymers comprising pendent free-radically polymerizable quaternary ammonium substituent
US9562180B2 · kind B2 · utility
1Cited by
13References
18Claims
0Family size
Inventors
Key dates
| Filing date | Jan 30, 2013 |
| Grant date | Feb 7, 2017 |
| Priority date | — |
| Expiry date | Jan 30, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2887
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Adhesive compositions comprising a copolymer of isobutylene repeat units and alkene repeat units are described. At least a portion of the alkene repeat units are bonded to a pendent nitrogen atom of a quaternary ammonium salt comprising a free-radically polymerizable substituent. The adhesive optionally comprises other components such as tackifier, unfunctionalized polyisobutylene polymer, plasticizer, and combinations thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.