Non-tacky strand prepreg comprising a resin composition containing a combination of (1) a thermosetting resin and (2) a high molecular weight epoxy resin and a process for forming an article from the same
US4309473A · kind A · utility
47Cited by
8References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 5, 1979 |
| Grant date | Jan 5, 1982 |
| Priority date | — |
| Expiry date | Dec 5, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249947
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A strand prepreg which comprises (i) a resin composition comprising 100 parts by weight of thermosetting resin having a softening point of 60.degree. C. or less and about 5 to 60 parts by weight of epoxy resin having a number average molecular weight of 5,000 or more and (ii) about 20 to 80% by volume strands of carbon fibers, glass fibers, aromatic polyamide fibers and the like, wherein the strands are impregnated with the resin composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.