Elastic shaped article

Details Elastic shaped article Elastic shaped article

1982-09-22

1984-01-10

Dixon, Jr., William R.

Pipes and tubular conduits

Flexible

Corrugated

138137, 428 36, 428217, 4284246, 4284769, 428483, D03D 2100, D03D 3500, B32B 2740, B32B 2706

Patent

active

044248342

ABSTRACT:
An elastic shaped article of a laminated construction of at least two layers, comprising (a) a layer of a soft polyvinyl chloride combining polyvinyl chloride with a plasticizer and (b) a layer of at least one thermoplastic elastomer selected from the group consisting of polyester type elastomers, polyurethane type elastomers, and polyamide type elastomers is useful for production of boots, ducts, hoses, tubes, sealing members, covering members, etc. in various transportation machines, construction machines, industrial machines, machine tools, etc. The elastic shaped article whose component layers are particularly laminated by co-extrusion is molded by the blow molding method. When the plasticizer which is combined with polyvinyl chloride to form the soft polyvinyl chloride has an average molecular weight of at least 700, the produced elastic shaped article excels particularly in oil resistance at elevated temperatures.

REFERENCES:
patent: 3042736 (1962-07-01), Salisbury
patent: 3401576 (1968-09-01), Eckels
patent: 3407102 (1968-10-01), Wilkinson
patent: 3714311 (1973-01-01), Stefanka
patent: 4045600 (1977-08-01), Williams
patent: 4089360 (1978-05-01), Bohm
patent: 4259408 (1981-03-01), Moschter
patent: 4382986 (1983-05-01), Reuben

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