Method of molding synthetic resins materials through high-pressu

Plastic article or earthenware shaping or treating: apparatus – Control means responsive to or actuated by means sensing or... – Feed control of material en route to shaping area

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425205, 425376, B29B 106

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active

039854841

ABSTRACT:
A method of molding a synthetic resin which comprises: kneading a mixture obtained by dispersing a cross-linking agent in said synthetic resin, while melting said resin by applying such temperature and pressure as will not give rise to cross-linking reaction, introducing the thus kneaded mixture into plural reaction chambers to effect cross-linking therein by applying an appropriate temperature and high pressure, and extruding the thus cross-linked material continuously from said reaction chambers through a head die for molding purpose; and a molding apparatus relevant to said method.

REFERENCES:
patent: 2620922 (1952-12-01), Deutsch
patent: 3158901 (1964-12-01), Westover
patent: 3721512 (1973-03-01), Ma et al.
patent: 3750134 (1973-07-01), Weisend
patent: 3767339 (1973-10-01), Hunkar
patent: 3891372 (1975-06-01), Takiura

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