Process for making powdered rubber

Details Process for making powdered rubber Process for making powdered rubber

1984-09-10

1986-03-25

Lilling, Herbert J.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

523206, 523334, 524496, 524526, 428407, C08K 304

Patent

active

045784116

ABSTRACT:
The conventional processing of rubbers into shaped articles of manufacture normally include a compounding step. In this compounding step the rubber is mixed with fillers, curatives, and various other additives so as to obtain a homogeneous mixture. The relatively high viscosity of these raw materials makes it necessary to utilize heavy machinery, such as Banbury mixtures, which consume large amounts of energy in the mixing procedure.
The present invention provides an improved process for the production of tack-free, pourable, filler containing powdered rubber. This powdered rubber can be compounded eliminating in whole or in part the need for heavy equipment which consumes high amounts of energy. This invention more specifically reveals that in a process for the production of tack-free, pourable, filler containing elastomer powder which comprises;

REFERENCES:
patent: 3813259 (1974-05-01), Neubert
patent: 3920604 (1975-11-01), Berg et al.
patent: 3945978 (1976-03-01), Berg et al.
patent: 4073755 (1978-02-01), Berg et al.
patent: 4374941 (1983-02-01), Sandstrom
patent: 4375497 (1983-03-01), Sandstrom
patent: 4379871 (1983-04-01), Werle et al.

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