Self reinforced thermoplastic composite laminate

Details Self reinforced thermoplastic composite laminate Self reinforced thermoplastic composite laminate

1991-04-25

1994-01-04

Ryan, Patrick J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Noninterengaged fiber-containing paper-free web or sheet...

4284735, 428480, 428483, 264108, 264174, 264DIG26, 525425, 525436, B05D 300, C08L 6700

Patent

active

052758770

ABSTRACT:
A shaped reinforced thermoplastic composite, such as composite laminate (10 or 10A), comprises a thermoplastic matrix polymer (22) and a plurality of fibers (20) of a liquid crystal polymer (LCP) which are formed in situ in the matrix polymer. This composite is formed by forming a prepreg as a plurality of individual sheets or layers (50), each of which comprises essentially unidirectionally oriented fibers (20) of said LCP in a thermoplastic polymer matrix (22). A lay-up is formed by cutting each individual sheet or layer into pieces so that the direction of fiber orientation in each such piece is either parallel to one pair of edges or at angles of 45.degree. to all of the edges. The lay-up is shaped under heat and pressure to form the composite.

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patent: 4835047 (1989-05-01), Isayev et al.
patent: 5006402 (1991-04-01), Isayev
Cogswell, "The Processing Science of Thermoplastic Structural Components", Intern Polymer Processing (ASM), 157-165.
Hwang et al; "Solution Processing and Properties of Molecular Composite Fibers and Films," Polymer Engineering and Science, 23 (1983), 784-788.

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