Composite structure

Patent metadata

Field	Value
Publication number	US-11919273-B2
Application number	US-202217861309-A
Country	US
Kind code	B2
Filing date	Jul 11, 2022
Priority date	Mar 24, 2016
Publication date	Mar 5, 2024
Grant date	Mar 5, 2024

Abstract

A composite structure comprising a resinous component that is adhered to a surface of a metal component is provided. The resinous component is formed from a polymer composition that comprises a polyarylene sulfide, inorganic fibers, and an impact modifier. The inorganic fibers have an aspect ratio of from about 1.5 to about 10.

First claim

What is claimed is:

1. A composite structure comprising a resinous component that is adhered to a surface of a metal component, wherein the resinous component is formed from a polymer composition that comprises a polyarylene sulfide, inorganic fibers, an impact modifier that includes an epoxy-functionalized olefin copolymer, and an epoxy resin having a melting temperature of from about 50° C. to about 120° C. and an epoxy equivalent weight of from about 250 to about 1,500 grams per gram equivalent as determined in accordance with ASTM D1652-11e1, wherein the inorganic fibers having an aspect ratio of from about 1.5 to about 10, the aspect ratio being defined as the cross-sectional width of the fibers divided by the cross-sectional thickness of the fibers, wherein the inorganic fibers constitute from about 1 wt. % to about 50 wt. % of the polymer composition, the impact modifier constitutes from about 1 wt. % to about 40 wt. % of the polymer composition, the epoxy resin constitutes from about 0.01 wt. % to 1 wt. % of the polymer composition, and the polyarylene sulfide constitutes from about 35 wt. % to about 95 wt. % of the polymer composition.

2. The composite structure of claim 1 , wherein the polyarylene sulfide is a linear polyphenylene sulfide.

3. The composite structure of claim 1 , wherein the epoxy-functionalized olefin copolymer contains an ethylene monomeric unit and an epoxy-functional (meth)acrylic monomeric component.

4. The composite structure of claim 3 , wherein the epoxy-functional (meth)acrylic monomeric component is derived from glycidyl acrylate, glycidyl methacrylate, or a combination thereof.

5. The composite structure of claim 3 , wherein the epoxy-functional (meth)acrylic monomeric unit constitutes from about 1 wt. % to about 20 wt. % of the copolymer.

6. The composite structure of claim 3 , wherein the epoxy-functionalized olefin copolymer further contains a (meth)acrylic monomeric component that is not epoxy-functional.

7. The composite structure of claim 1 , wherein the inorganic fibers have a width of from about 1 to about 50 micrometers and a thickness of from about 0.5 to about 30 micrometers.

8. The composite structure of claim 1 , wherein the inorganic fibers include glass fibers.

9. The composite structure of claim 1 , wherein the epoxy resin has an epoxy equivalent weight of from about 250 to about 700 grams per gram equivalent as determined in accordance with ASTM D1652-11e1.

10. The composite structure of claim 9 , wherein the epoxy resin is a glycidyl ether formed from an epichlorohydrin and a hydroxyl compound containing at least 1.5 aromatic hydroxyl groups.

11. The composite structure of claim 10 , wherein the hydroxyl compound is a dihydric phenol.

12. The composite structure of claim 1 , wherein the metal component contains aluminum.

13. The composite structure of claim 1 , wherein the metal component contains a plurality of surface indentations having an average size of about 20 micrometers or less.

14. The composite structure of claim 1 , wherein the composite structure exhibits a tensile shear strength of about 1,200 Newtons or more, as determined in accordance with ISO Test No. 19095-2015 at a temperature of 23° C.

Assignees

• Ticona Llc

Inventors

• Ding Junchen
• Li Yanjun
• Luo Rong

Classifications

• B32B15/08 Primary

  of synthetic resin · CPC title

• B29C45/14008

  Inserting articles into the mould (B29C45/14827 takes precedence) · CPC title

• B29C45/1418

  the inserts being deformed or preformed, e.g. by the injection pressure · CPC title

• B32B7/04

  Interconnection of layers · CPC title

• B32B15/082

  comprising vinyl resins; comprising acrylic resins · CPC title