Glass fiber reinforced resin composition and wheel cap formed of same
US5382459A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 27, 1993 |
| Grant date | Jan 17, 1995 |
| Priority date | — |
| Expiry date | Aug 27, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24994
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A glass fiber reinforced resin composition is prepared, the composition consisting essentially of: PA1 (1) 45 to 83% by weight of a crystalline ethylene-propylene block copolymer exhibiting a melt flow rate of 20 to 100 grams/10 minutes, comprising (i) an ethylene component in an amount of 3 to 12% by weight, and (ii) components having low molecular weights falling within the range of 1,000 to 50,000 in weight average molecular weight and soluble in chloroform at room temperature, in an amount of 0.3 to 3.5% by weight; PA1 (2) 2 to 20% by weight of a polypropylene resin modified with an unsaturated carboxylic acid derivative; and PA1 (3) 15 to 35% by weight of glass fiber. A wheel cap molded from the glass fiber reinforced resin composition has an excellent appearance, impact strength, rigidity, mechanical strength and thermal resistance, and can be manufactured at a low cost.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.