Method of producing a local reinforcement in a sandwich structur

Details Method of producing a local reinforcement in a sandwich structur Method of producing a local reinforcement in a sandwich structur

1992-01-03

1993-03-09

Heitbrink, Tim

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

To produce composite, plural part or multilayered article

264258, 264261, B29C 4516

Patent

active

051924820

ABSTRACT:
The invention is directed to a sheet-like sandwich material provided with a local reinforcement having a core material sandwiched between two reinforced top layers, which core material is a thermoplastic, formed core material or a core material having a honeycomb structure, and which top layers a thermoplastic synthetic plastic material reinforced with fibers, preferably in the form of a woven fabric, a knitted fabric, a fibrous web, or unidirectionally applied fibers, and at least one local reinforcement having an amount of plastic material injected under pressure into the core material through one of the top layers, and which plastic material has hardened after injection and to a process for providing a local reinforcement in a sheet-like sandwich material.

REFERENCES:
patent: 3492381 (1970-01-01), Rhyne
patent: 4376003 (1983-03-01), Elbez et al.
patent: 4783298 (1988-11-01), Oda
patent: 4826723 (1989-05-01), Brambach
patent: 4889763 (1989-12-01), Brambach
patent: 4933131 (1990-06-01), Okey et al.
patent: 5043127 (1991-08-01), Brambach
Patent Abstracts of Japan, vol. 11, No. 200 (C-431) [2647], Jun. 27, 1987; JP-A-62 22 833 (Asahi Chem. Inc. Co., Ltd.) Jan. 31, 1987.

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