Abrasion-resistant mineral-filled thermosetting molding composition
USRE29954E · kind E · reissue
0Cited by
4References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 13, 1976 |
| Grant date | Apr 3, 1979 |
| Priority date | — |
| Expiry date | Sep 13, 1996 |
Classification
- Technology area (CPC —)General
Abstract
Mineral-filled thermosetting molding compositions having improved abrasion resistance. The addition of up to 10% polyethylene or other polyolefin greatly improves the abrasion resistance of conventional molding compositions containing 15% to 60% thermosetting resin, 40% to 85% mineral filler of which 50% may be fiberglass or other fibrous reinforcement. The addition is especially applicable with free radical initiated polymers, particularly polyester resins and epoxy-polybutadiene resins, with which it cross links. In some cases flexure strength is also slightly improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.