Air conduits and process therefor

Details Air conduits and process therefor Air conduits and process therefor

1976-12-20

1982-03-16

Michl, Paul R.

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Including application of internal fluid pressure to hollow...

264506, 525 95, B29C 1707

Patent

active

043200842

ABSTRACT:
Air conduits or ducts, including convoluted or bellows-type ducts, are prepared by molding a resinous mixture consisting essentially of a polypropylene and a polystyrene-polyolefin block copolymer. Inert fillers can be present in the mixture.

REFERENCES:
patent: 3313319 (1967-04-01), Osborn
patent: 3639163 (1972-02-01), Bishop
patent: 3810957 (1974-05-01), Lunk
patent: 3823203 (1974-07-01), De La Mare
patent: 3917607 (1975-11-01), Crossland
patent: 4006116 (1977-02-01), Dominguez

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