Method for producing a carboxyl group containing rubber

Details Method for producing a carboxyl group containing rubber Method for producing a carboxyl group containing rubber

2006-01-10

2006-01-10

Mulcahy, Peter D. (Department: 1713)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

C524S459000

Reexamination Certificate

active

06984681

ABSTRACT:
A method for producing a carboxyl group-containing rubber having good vulcanization characteristics and exhibiting good resistance to scorching, continuously and in good yield.A method for producing a dry rubber from a polyvinyl alcohol-containing latex of a carboxyl group-containing rubber by continuously carrying out coagulation, dewatering, washing and drying in a dewatering/drying apparatus of a screw extruder type, characterized in that a coagulating agent containing ammonium borate is used.

REFERENCES:
patent: 4508885 (1985-04-01), Nishiwaki et al.
patent: 1 097 950 (2001-05-01), None
patent: 60-36502 (1985-02-01), None
patent: 2001-131224 (2001-05-01), None

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