Hybrid glass fibers carbon fibers thermoplastic composites
AssigneeE. I. Du Pont de Nemours and Company
InventorsBryan Benedict Sauer, Martyn Douglas Wakeman
Life of this patent
Estimating the term…
Abstract
Disclosed herein are composite structures having improved high modulus and strenght, processes for making them, and end use articles. The composite structures comprise two or more layers of a fibrous material made of carbon fibers with a basis weight greater than or equal to 150 g/m2, one or more layer of a fibrous material made of glass fibers with a basis weight greater than or equal to 200 g/m2 and a polyamide resin composition. The fibrous materials made of carbon and glass fibers are impregnated into the polyamide resin composition and each of the external layers of the composite structure is a layer of fibrous material made of carbon fibers.
Claims25
A composite structure comprising:
- (a) two or more layers of a fibrous material made of carbon fibers with a basis weight greater than or equal to 150 g/m2;
- (b) one or more layer of a fibrous material made of glass fibers with a basis weight greater than or equal to 200 g/m2;
- and
- (c) a polyamide resin composition,
- wherein the fibrous materials made of carbon and glass fibers are impregnated with the polyamide resin composition and wherein each of the external layers of the composite structure is a layer of fibrous material made of carbon fibers a).
An article made from a composite structure comprising:
- (c) two or more layers of a fibrous material made of carbon fibers with a basis weight greater than or equal to 150 g/m2;
- (d) one or more layer of a fibrous material made of glass fibers with a basis weight greater than or equal to 200 g/m2;
- and
- (c) a polyamide resin composition,
- wherein the fibrous materials made of carbon and glass fibers are impregnated with the polyamide resin composition and wherein each of the external layers of the composite structure is a layer of fibrous material made of carbon fibers a).
A process for making a composite structure, comprising the step of:
- a) Providing two or more layers of a fibrous material made of carbon fibers with a basis weight greater than or equal to 150 g/m2
- b) Providing one or more layer of a fibrous material made of glass fibers with a basis weight greater than or equal to 200 g/m2 and
- c) Providing a polyamide resin composition in the form of a film or powder, wherein the polyamide composition is placed between the layers of fibrous material made of carbon fibers and glass fibers
- d) Impregnating the layers of fibrous material with the polyamide resin composition under heat and pressure
- e) Cooling and subsequently recovering the composite structure.
Dependencies are inferred from the claim text.