Injection molding of thermoplastic material including from 2 to

Details Injection molding of thermoplastic material including from 2 to Injection molding of thermoplastic material including from 2 to

1994-08-04

1997-10-21

Epstein, Henry F.

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

4282974, 428902, B32B 1704

Patent

active

056794240

ABSTRACT:
An injection molding which is built up from a thermoplastic material and glass fibers where the glass fibers have a fiber length of at least 5 mm and are present in an amount of 2 to 8% by weight, based on the total weight of the glass fibers and thermoplastic material. The injection molding has an impact strength at 23.degree. C. of at least 170 kJ/m.sup.2 and an impact strength at -30.degree. C. of at least 140 kJ/m.sup.2. The injection molding material is distinguished by a significant improvement in its impact strength, together with an increased heat resistance compared with injection moldings of simple thermoplastic materials which are not reinforced with fibers.

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DATABASE WPI, Week 9127, AN 91-196897 & JP-A-3j 121 146 May 1991.
Steve T. Bowen, "Long Fibre Reinforced Thermoplastics for the Injection Moulding Process", Engineering Plastics, pp. 188-197, 1991.
Kunststoffe. Bd. 65 1975. H.2, vol. 65 No. 2, Von Dr-Ing. A. von Harneir, Bomlitz, pp. 58-63.

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