Plastic and nonmetallic article shaping or treating: processes – Recycling of reclaimed or purified process material – Of gaseous process material
Patent
1981-10-16
1983-09-27
Flint, Jr., J. Howard
Plastic and nonmetallic article shaping or treating: processes
Recycling of reclaimed or purified process material
Of gaseous process material
264 85, 264315, 264326, 425 29, 425 33, 425 58, B29H 502
Patent
active
044068450
ABSTRACT:
A method for restoration and re-utilization of discharged gas for use in a vulcanization employing inert gas in part of the vulcanization of elastomer products, which includes the steps of restoring a mixture of used inert gas discharged from a vulcanizing unit and vulcanizing medium for steam separation thereof, subjecting the elastomer product mounted in a metal mold to a preshaping by supplying the inert gas obtained by the steam separation to the vulcanizing unit prior to starting of the vulcanization, and subjecting the inert gas obtained by the steam separation to supplementary pressurization by inert gas obtained from an inert gas generating unit when the inert gas is to be supplied to the vulcanizing unit, and also an arrangement for carrying out the above method in an efficient manner.
REFERENCES:
patent: 1200603 (1916-10-01), Gammeten
patent: 3443280 (1969-05-01), Hugger
patent: 4097565 (1978-06-01), Cole et al.
patent: 4222721 (1980-09-01), Gado
Oyobe Ikuo
Sakon Tohatirou
Flint, Jr. J. Howard
Sumitomo Rubber Industries Ltd.
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