Adhesive compositions based on block copolymer adducts
US5175215A · kind A · utility
2Cited by
5References
9Claims
0Family size
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Inventor
Key dates
| Filing date | Feb 20, 1991 |
| Grant date | Dec 29, 1992 |
| Priority date | — |
| Expiry date | Feb 20, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F8/18
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A Diels-Alder adduct of a halogenated cyclic conjugated diene and a block copolymer of styrene and butadiene which is particularly useful in adhesive compositions. The Diels-Alder adduct has a halogen content of between about 30 and 45, preferably between about 34 and 40, percent by weight. The halogen content of the adduct is crucial to the performance of the adduct in adhesive compositions. Hexachlorocylopentadiene is a preferred halogenated cyclic conjugated diene for preparing the adduct and either diblock or triblock styrene-butadiene copolymers may be utilized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.