Adhesives and sealants from controlled distribution block copolymers
US6987142B2 · kind B2 · utility
21Cited by
37References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 6, 2003 |
| Grant date | Jan 17, 2006 |
| Priority date | — |
| Expiry date | May 11, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2666/24
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to adhesives and sealants prepared from novel anionic block copolymers of mono alkenyl arenes and conjugated dienes, and to blends of such block copolymers with other polymers. The block copolymers are selectively hydrogenated and have mono alkenyl arene end blocks and controlled distribution blocks of mono alkenyl arenes and conjugated dienes. The block copolymer may be combined with tackifying resins, oils and other components to form the adhesives and sealants of the present invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.