Tear resistant, crystalline midblock copolymer gels and articles
US6867253B1 · kind B1 · utility
113Cited by
1References
17Claims
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Assignee
Inventor
Key dates
| Filing date | Nov 21, 2000 |
| Grant date | Mar 15, 2005 |
| Priority date | — |
| Expiry date | Aug 17, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2/7843
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Novel gels and articles are formed from one or more multiblock copolymers having at least one block segment of poly(ethylene) and selected amounts of one or more low viscosity plasticizers, said gels having an amount of crystallinity, glassy components, selected amounts of plasticizers, with or without other additives sufficient to achieve improvements in one or more physical properties including improved crack propagation resistance, improved tea resistance, improved resistance to fatigue and resistance to catastrophic failure not obtainable in amorphous gels and exceptionally lower and/or no tack.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.