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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10240016 B1

PDFFull Text
Date of Patent:
Mar. 26, 2019

Filed:

Apr. 15, 2015

Method for a composite material impregnated with thermoplastic polymer, obtained from a prepolymer and a chain extender

Applicant:

Arkema France, Colombes, FR;

Inventors:

Gilles Hochstetter, L'hay les Roses, FR;

Thierry Briffaud, Bernay, FR;

Mathieu Capelot, Bernay, FR;

Assignee:

ARKEMA FRANCE, Colombes, FR;

Attorney:

Buchanan Ingersoll & Rooney P.C.

Primary Examiner:

Robert B Davis

Int. Cl.
CPC ...
C08J 5/24 (2006.01); C08J 5/04 (2006.01); C08G 69/48 (2006.01); C08G 69/44 (2006.01); C08K 5/353 (2006.01); B29C 45/00 (2006.01); C08G 69/26 (2006.01); C08G 69/32 (2006.01); C08J 5/10 (2006.01); B29K 77/00 (2006.01); B29L 31/00 (2006.01);
U.S. Cl.
CPC ...
C08J 5/24 (2013.01); B29C 45/0005 (2013.01); C08G 69/265 (2013.01); C08G 69/32 (2013.01); C08G 69/44 (2013.01); C08G 69/48 (2013.01); C08J 5/04 (2013.01); C08J 5/10 (2013.01); C08K 5/353 (2013.01); B29K 2077/00 (2013.01); B29L 2031/00 (2013.01); C08J 2377/06 (2013.01); C08J 2377/10 (2013.01); C08J 2377/12 (2013.01);
Abstract

A process for a composite material, including an assembly of one or more reinforcing fibers, impregnated with at least one thermoplastic polymer with a glass transition temperature Tg of less than or equal to 75° C. and a melting point of from 150° C. to less than 250° C. or a Tg of greater than 75° C., the process including: i) a step of impregnating said assembly in bulk melt form with at least one thermoplastic polymer, which is the product of polymerization by polyaddition reaction of a reactive precursor composition including: a) at least one prepolymer P(X)n of said thermoplastic polymer, and b) at least one chain extender, represented by Y-A-Y, ii) a step of cooling and obtaining a fibrous preimpregnate, and iii) a step of processing and final forming of said composite material.

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