Precoagulation process for incorporating organic fibrous fillers

Details Precoagulation process for incorporating organic fibrous fillers Precoagulation process for incorporating organic fibrous fillers

1991-10-28

1993-04-27

Tentoni, Leo B.

Plastic and nonmetallic article shaping or treating: processes

Vacuum treatment of work

264141, 264211, 264349, 523333, 523335, 523340, 523352, 524572, 524575, 524577, 528502, B29C 4700, B29C 4776

Patent

active

052059731

ABSTRACT:
Incorporation of fibrous filler into a styrene-butadiene rubber (SBR) by mixing a fibrous filler, SBR latex and a coagulant, feeding the resulting coagulated fiber-filled SBR latex to a dewatering extruder and through a flow restriction that applies back pressure sufficient that water present in the SBR is forced out of a vent upstream from the flow restriction and discharging the fiber-filled SBR from the extruder.

REFERENCES:
patent: 3035006 (1962-05-01), Hanmer et al.
patent: 4136251 (1979-01-01), Bice et al.
patent: 4263184 (1981-04-01), Leo et al.
patent: 4588780 (1986-05-01), Edwards et al.

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