Optimum formulation regions of reinforced thermoset composites
US4687796A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 1985 |
| Grant date | Aug 18, 1987 |
| Priority date | — |
| Expiry date | Dec 23, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2367/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention relates to optimum formulation regions of reinforced thermosetting resin composites incorporating substantially increased filler loadings which have been found to retain the impact strength of formulation regions with substantially less filler loadings. The reinforced thermosetting resin composite of this invention comprises PA1 (a) 15 to 23 weight percent resin matrix selected from the group consisting of polyester and epoxy, PA1 (b) 5 to 25 equivalent weight percent fiber reinforcement, said fiber reinforcement comprising 0 to 80 volume percent glass fiber and 100 to 20 volume percent high tenacity reinforcing organic fiber selected from the group consisting of polyester and polyamide, and PA1 (c) 80 to 52 weight percent inert filler.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.