Glass-fiber reinforced polypropylene resin composition
US4663369A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 3, 1986 |
| Grant date | May 5, 1987 |
| Priority date | — |
| Expiry date | Jun 3, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L51/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A glass-fiber reinforced polypropylene composition having superior adhesion of glass fibers therein, stiffness, high-impact properties and molding properties is provided, which composition comprises a graft polypropylene resin obtained by graft-polymerizing a radically polymerizable unsaturated compound onto a crystalline polypropylene resin with an organic peroxide catalyst in a hydrocarbon solvent or a blend of the graft polypropylene with a crystalline polypropylene resin, glass fibers treated with an organic silane or titanium compound, Ca stearate and an alkaline earth metal compound, the respective quantities of the above components being specified.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.