Impact copolymer with optimized melt flow, stiffness, and low-temperature impact resistance
US7309742B2 · kind B2 · utility
10Cited by
2References
23Claims
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Key dates
| Filing date | Nov 14, 2003 |
| Grant date | Dec 18, 2007 |
| Priority date | — |
| Expiry date | Jan 25, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S525/938
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An impact copolymer having a flexural modulus (ASTM D-790) of at least about 1,100 MPa; a melt flow rate (ASTM D-1238) of at least about 15 g/10 min; and a maximum load under Dynatup Impact test (ASTM D-3763) of equal to or greater than about 1,700 N at a temperature of less than or equal to about −40° C. and articles of manufacture from same.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.