Compositions comprising a functionalized block copolymer crosslinked with aluminum acetylacetonate
US6653408B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 21, 2002 |
| Grant date | Nov 25, 2003 |
| Priority date | — |
| Expiry date | Dec 17, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F8/42
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
In one embodiment, this invention provides a composition comprising a functionalized block copolymer crosslinked with acetylacetonate. The crosslinked block copolymer has improved solvent resistance and improved cohesive strength at high temperatures. The crosslinked block copolymer comprises preferably an acid functionalized, hydrogenated block copolymer having an ABA or similar structure wherein the block comprises at least 80 wt % of a vinyl-aromatic hydrocarbon, preferably styrene, and wherein the B block comprises at least 80 wt % of a hydrogenated and conjugated diene, preferably butadiene, isoprene or a mixture thereof. In another embodiment, this invention provides an adhesive, sealant, oil gel, asphalt composition, or wax composition comprising the acid functionalized, hydrogenated block copolymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.