US 4,680,224 AGranted

Reinforced plastic

AssigneePhillips Petroleum Company

InventorJames E. O'Connor

Life of this patent

Estimating the term…

Abstract

A process for preparing shaped objects of continuous fiber strand material in a poly(arylene sulfide) matrix and the shaped objects prepared thereby. The shaped objects are prepared by a pultrusion process requiring adaptation of polymer slurry contacting with fiber strands and specifically adapted die apparatus suitable for use with viscous poly(arylene sulfide).

Claims14

Dependent claims

A reinforced plastic comprising

(a) a roving of reinforcing material having unidirectionally aligned fibers in
(b) a poly(arylene sulfide) matrix.

Dependencies are inferred from the claim text.

Facts

Application: 06/773,965Filed 9 Sep 1985 · continuation
Priority: 7 Apr 1983
Granted: 14 Jul 1987
Term ends: Not estimatedThe source records don’t support an estimate.

Classification16 codes

C08J 5/04
Manufacture of articles or shaped materials containing macromolecular substances: reinforcing macromolecular compounds with loose or coherent…
B29C 70/521
Pultrusion, i.e. forming and compressing by continuously pulling through a die: and impregnating the reinforcement before the die
B29K 2081/00
Use of polymers having sulfur, with or without nitrogen, oxygen or carbon
C08J 2381/02
Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing…:…

Family

Serial483,013Parent of this continuation-in-part · filed 7 Apr 1983
Serial584,418Parent of this continuation · filed 6 Mar 1984
US 4,680,224 AThis patent

From the US filing history. Foreign family members aren’t listed.

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