Stock material or miscellaneous articles – Sheet including cover or casing – Foamed or expanded material encased
Patent
1997-09-24
1999-08-17
Bell, James J.
Stock material or miscellaneous articles
Sheet including cover or casing
Foamed or expanded material encased
428192, 4283175, 428904, 264 465, B32B 300
Patent
active
059391650
ABSTRACT:
Disclosed are a surface skin-covered molded cushioning material which comprises a base material 1 having a main body the surface of which is covered with a surface skin material 4 via a cushion layer 3, wherein the main body of the base material and the surface skin material comprise a material which does not permit flowing of foamed gas generated at the time of forming the cushion layer and flowing of a synthetic resin material for forming the cushion layer; a sealing material 2 comprising a material which permits flowing of the foamed gas and does not permit flowing of the synthetic resin material is arranged at the circumferential portion of the main body of the base material; and the circumferential portion of the surface skin material covers the sealing material and also reaches the circumferential portion of the back face of the main body of the base material, and a process for producing the same.
REFERENCES:
patent: 4025372 (1977-05-01), Fenton
patent: 4618532 (1986-10-01), Volland et al.
patent: 5670232 (1997-09-01), Bigolin
Akita Teruo
Oike Hidekazu
Bell James J.
Howa Kasei Co., Ltd.
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