Patent ID: 11920062
Assignee: CYTEC INDUSTRIES INC.
Field: Surface technology, coating (Chemistry)
Classification: CPC C  B  Y | IPC B  C

Claim 0:
1. A method for fabricating a composite laminate, said method comprising:
forming a plurality of prepregs, each prepreg comprising a layer of reinforcement fibers impregnated with a curable matrix resin and functionalized polymer particles of amine-functionalized polyaryletherketone (PAEK) positioned adjacent the layer of reinforcement fibers; and
laying up the prepregs in a stacking arrangement such that an interlaminar region is defined between adjacent layers of reinforcement fibers, and the functionalized PAEK particles are positioned within said interlaminar region,
wherein curable matrix resin comprises at least one thermoset resin, and
wherein the functionalized polymer particles are particles of an amine-functionalised polyaryletherketone polymer or copolymer thereof which are formed by:
(i) polymerizing monomers in a reaction medium comprising: (a) a capping agent containing —NR2, —NRH or a protected amine group, where R is either an aliphatic or aromatic group, (b) a Lewis acid, and (c) a controlling agent selected from an aromatic carboxylic acid, an aromatic sulphonic acid, and a derivative thereof; and
(ii) adjusting the ratio of controlling agent to monomers so as to control particle size distribution,
wherein the monomers are represented by the following structure:, where X may be —C(O)—, —S(O2)—, terephthaloyl group, isophthaloyl group, or an imide group with the following structure:, , where R is —C(O)—, —S(O2)—, —O—, or a bond.