Resin composition and composite structure containing resin

Patent metadata

Field	Value
Publication number	US-9695312-B2
Application number	US-201314422721-A
Country	US
Kind code	B2
Filing date	Sep 25, 2013
Priority date	Sep 26, 2012
Publication date	Jul 4, 2017
Grant date	Jul 4, 2017

Abstract

A resin composition for producing a composite part, comprising a first resin component comprising a glycidyl ether epoxy resin, a second resin component comprising a naphthalene based epoxy resin, and an amino-phenyl fluorene curative; wherein the epoxy resin components a) and b) contain up to 33 wt % of the second resin component.

First claim

The invention claimed is:

1. An uncured composite material consisting of:
A) a fibrous reinforcement comprising carbon fibers;
B) an uncured resin composition consisting of:
1) an uncured resin component consisting of diglycidyl ether of Bisphenol F and from 19 to 32 weight percent diglycidyl ether of 1,6-dihydroxynaphthalene, based on the total weight of said uncured resin component;
2) core shell rubber particles dispersed in said uncured resin component; and
3) a curing agent consisting of 9,9-bis(4-amino-3-chloro-phenyl) fluorene.

2. An uncured composite material according to claim 1 wherein the amount of core shell particles present in said resin composition is from 15 to 16 weight percent, based on the total combined weight of said uncured resin component and said core shell particles.

3. An uncured composite material according to claim 2 wherein the amount of core shell particles present in said resin composition is 16 weight percent, based on the total combined weight of said uncured resin component and said core shell particles.

4. An uncured composite material according to claim 3 wherein the amount of diglycidyl ether of 1,6-dihydroxynaphthalene in said uncured resin composition is 25 weight percent, based on the total weight of said uncured resin component.

5. An uncured composite material according to claim 1 wherein the amount of diglycidyl ether of 1,6-dihydroxynaphthalene in said uncured resin composition is 25 weight percent, based on the total weight of said uncured resin component.

6. A composite part comprising an uncured composite material according to claim 1 that has been cured to form said composite part.

Assignees

• Hexcel Composites Ltd

Inventors

• Mortimer Stephen
• Stevens Scott

Classifications

• C08L33/04

  Homopolymers or copolymers of esters {(C08L43/04 takes precedence)} · CPC title

• C08G59/504

  containing an atom other than nitrogen belonging to the amine group, carbon and hydrogen · CPC title

• C08L2205/03

  containing three or more polymers in a blend · CPC title

• C08L79/08

  Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors · CPC title

• C08L63/00 Primary

  Compositions of epoxy resins; Compositions of derivatives of epoxy resins · CPC title