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US 10,538,638 B2Granted
Prepregs for manufacturing composite materials
AssigneeGurit (UK) Ltd.
InventorsDaniel Thomas Jones, Barrie Hayes
Life of this patent
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Abstract
A prepreg comprising a fibrous material contacting a polymerizable resin, at least 50 wt % of the polymerizable resin comprising at least one polymerizable monomer having at least two carbon-carbon unsaturated functional groups, the monomer being polymerizable by reaction of the unsaturated functional groups to form a cured resin, wherein the resin has a heat of polymerization of less than 230 KJ/kg to provide a maximum increase in temperature of the prepreg of 60° C. during polymerization under adiabatic conditions.
Claims33
A prepreg comprising:
- a fibrous material at least partially impregnated with a polymerisable resin,
- wherein the polymerisable resin is partially cured and at least 50 wt % of the polymerisable resin comprises at least one polymerisable monomer having at least two carbon-carbon unsaturated functional groups, the monomer being polymerisable by radical curing of the unsaturated functional groups to form a cured resin matrix containing the fibrous material,
- the resin has up to 4.2 gram equivalents of unsaturation per kilogram of resin, and
- wherein the resin has a heat of polymerization of less than 175 KJ/kg to provide a maximum increase in temperature of the prepreg of 40° C. during polymerisation under adiabatic conditions.
1 more element
Dependencies are inferred from the claim text.