Stiff, strong, tough glass-filled olefin polymer
US5916953A · kind A · utility
65Cited by
3References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 14, 1997 |
| Grant date | Jun 29, 1999 |
| Priority date | — |
| Expiry date | Mar 14, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2205/08
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A tough, strong, stiff glass-filled polyolefin composition comprises PA1 a propylene polymer having an nmr tacticity index of at least 94 and a molecular weight distribution of about 7 to 15; PA1 a stiffness-enhancing amount of glass fiber; PA1 an impact-modifying amount of a plastomer copolymer of ethylene with a C.sub.4 -C.sub.6 alpha-olefin having a density of about 0.865 to about 0.910 g/cc; and PA1 a functionalized olefin polymer in a sufficient amount to act as a compatibility agent between polymeric materials and the glass fiber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.