Toe puff for safety shoe

Details Toe puff for safety shoe Toe puff for safety shoe

1996-08-07

1997-09-16

Raimund, Christopher

Chemical apparatus and process disinfecting, deodorizing, preser

Process disinfecting, preserving, deodorizing, or sterilizing

Using disinfecting or sterilizing substance

36 77R, 36 77M, B29D 2200

Patent

active

056678576

ABSTRACT:
The present invention provides a molding sheet material having a sandwich structure produced by preparing a fiber reinforced thermoplastic resin layer (A) reinforced with a woven fabric or a knitted web and a fiber reinforced thermoplastic resin layer (B) reinforced with a random mat and using the layer (A) as a core layer and the layer (B) as a skin layer, or using the layer (B) as a core layer and the layer (A) as a skin layer. When this sheet material is molded into a three-dimensional structure, the layer (B) serves as a cushion to prevent the occurrence of a wrinkle or a crease in the layer (A). A toe puff for a safety shoe having a light weight and excellent pressing resistance can be prepared through the molding of this sheet material. In the sheet materials, the core layer or the skin layer consisting of a thermoplastic resin reinforced with a woven fabric or a knitted web of a reinforcing fiber may be prepared from a woven fabric or a knitted web of a reinforcing fiber alone.

REFERENCES:
patent: 3778251 (1973-12-01), Trask
patent: 4350732 (1982-09-01), Goodwin
patent: 4469543 (1984-09-01), Segal et al.
Derwent Abstract of French No. 2 289 338 Jul. 1976.

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