Resin binder for fiber composite materials
US4448941A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 1981 |
| Grant date | May 15, 1984 |
| Priority date | — |
| Expiry date | Dec 7, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F299/026
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Free-radical curable amino vinyl ester resin binder compositions for fiber reinforced composite materials with improved interlaminar shear strength and accelerated cure rate. The composition comprises about 80 to about 20 weight percent of amino vinyl prepolymer and about 20 to about 80 weight percent of a crosslinkable diluent, wherein the prepolymer consists essentially of the reaction product of epoxy-amino alcohol adduct and unsaturated monomer having a terminal vinyl group and a hydroxy reactive functionality capable of reacting with the hydroxyl groups of the adduct. The polyepoxide and amino alcohol, preferably a diethanol amine, are reacted in a ratio of about 1:1-1.2 equivalents of epoxide to amine groups, so as to react essentially all of the epoxide groups. Subsequently, between about 0.3-1.0 of the hydroxyl groups of the adduct are reacted with the vinyl monomer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.