Compositions containing blends of polystyrene-polyisoprene-polystyrene block copolymers
US5292806A · kind A · utility
11Cited by
18References
11Claims
0Family size
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Key dates
| Filing date | Dec 11, 1990 |
| Grant date | Mar 8, 1994 |
| Priority date | — |
| Expiry date | Dec 11, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2883
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Blends of low styrene content polystyrene-polyisoprene-polystyrene block copolymer and high styrene content polystyrene-polyisoprene-polystyrene block copolymer can be used with tackifier resins, plasticizer oil and antioxidants to formulate pressure sensitive adhesives of improved cohesive strength vis-a-vis adhesives formed from the low styrene content polystyrene-polyisoprene-polystyrene block copolymer while maintaining good balance between tack, bonding characteristics and heat resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.