Title: Stampable thermoplastic sheet reinforced with multilength fiber

Abstract: Reinforced thermoplastic polymer composite sheets are formable into smooth, shaped objects in a rapid stamping process in a cool mold when pre-heated outside of the mold. The characterizing constituents of the composite sheet are: (1) thermoplastic resin, (2) relatively short reinforcing fibers, (3) relatively long or continuous glass fiber, and (4) a particulate loading agent. This four-component system, laminated together, produces sheets having excellent formability, mechanical properties, uniformity and in particular surface smoothness not heretofore obtainable, and are simple to fabricate continuously.

Do you think this is a good invention? Vote now:

Votes so far: For:(0) Against:(0)
Other info:

Inventors: Segal, Leon (Randolph, NJ, US)

Application Number: 564019
Filing Date: 1975-04-01
Publication_date: 1977-08-23
Assignee: Allied Chemical Corporation (Morris Township, NJ)
Primary Class(es): 428/297.4 156/62.2, 156/244.25, 264/108, 264/257, 264/258, 264/331.19, 264/332, 264/510, 264/555, 428/323, 428/409
Other Classes:
US Patent Ref:

3121656	Feb, 1964	Gluck	428/283.
3616196	Oct, 1971	Sun	428/302.
3684645	Aug, 1972	Temple	428/293.
3709773	Jan, 1973	Hall	428/295.
3713962	Jan, 1973	Ackley	428/302.
3770562	Nov, 1973	Newman	428/302.

Other Refs:
Primary Examiner: McCamish, Marion E.
Assistant Examiner:
Attorney: Criss; Roger H., Henry; P.