Anti-blocking compositions comprising interpolymers of ethylene/α-olefins
US7514517B2 · kind B2 · utility
81Cited by
20References
30Claims
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Key dates
| Filing date | Mar 15, 2006 |
| Grant date | Apr 7, 2009 |
| Priority date | — |
| Expiry date | Feb 6, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L23/0815
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Anti-blocking polymer compositions comprise at least one ethylene/α-olefin interpolymer and at least one anti-blocking agent comprising an amide. The ethylene/α-olefin interpolymers are a multi-block copolymer comprising at least one soft block and at least one hard block. The anti-blocking agent can be erucamide or other amides. The anti-blocking polymer composition has a pellet blocking strength of equal to or less than 100 lbs/ft2 (4800 Pa). When the anti-blocking polymer composition is made into a film, the film has a blocking force of less than about 100 grams, measured according to ASTM method D-3354.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.