Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ – By mechanically introducing gas into material
Patent
1973-01-02
1976-07-13
Anderson, Philip
Plastic and nonmetallic article shaping or treating: processes
Pore forming in situ
By mechanically introducing gas into material
156 79, 156229, 156306, 260 25E, 264 53, 264 54, 264210R, 264340, 264DIG8, 428107, 428523, 428910, B29D 724, B29D 2700, B29D 720
Patent
active
039694712
ABSTRACT:
Non-woven fabrics are produced from polyolefin foam fibrillated webs. The webs are treated with an aqueous solution of a small amount of chromic acid in strong sulfuric acid to improve the adhesion thereof when they are laminated under heat and pressure to form a non-woven fabric.
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Anderson Philip
Hess J. Edward
Johnson Donald R.
Potts, Jr. Anthony
Sun Research and Development Co.
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