Process for the continuous production of RTV silicone rubber com

Details Process for the continuous production of RTV silicone rubber com Process for the continuous production of RTV silicone rubber com

1998-06-12

2000-02-29

Moore, Margaret G.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

523348, 524863, 524788, 528 17, 528 18, 528 34, C08K 336

Patent

active

06031026&

ABSTRACT:
In a first step, a crosslinkable organopolysiloxane oil (2) is mixed with an inorganic filler (3) in a flow jet mixer (1) to form a flowing silicone rubber compound. In a second step, the silicone rubber compound is fed into a tank (6) equipped at the bottom with a vacuum discharge pump (8) and maintained in vacuum where the compound is continuously deaerated, and a thixotropy controlling agent (10) is then added and mixed with the compound in a mixer (9). In a third step, a crosslinking agent (12) is added and mixed with the silicone rubber compound in a KRC kneader (11), and the compound is degassed in a mixer (13). The process continuously produces an RTV silicone rubber composition which is anti-sagging and improved in applicability on use.

REFERENCES:
patent: 4386003 (1983-05-01), Fiehler
patent: 4387177 (1983-06-01), Mine et al.
patent: 4649005 (1987-03-01), Kobayashi et al.
patent: 4737561 (1988-04-01), Stary et al.
patent: 5266631 (1993-11-01), Arai et al.
patent: 5674936 (1997-10-01), Lucas

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