Shelf-stable one-part room temperature vulcanizing fluorosilicon

Details Shelf-stable one-part room temperature vulcanizing fluorosilicon Shelf-stable one-part room temperature vulcanizing fluorosilicon

1994-05-11

1996-05-07

Bleutge, John C.

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...

524847, 524863, C08K 310

Patent

active

055147496

ABSTRACT:
A method for continuously producing a room temperature vulcanizable composition is disclosed. A base mixture of a silanol stopped fluorosilicone polymer, a silica filler and iron oxide are processed in an extruder at an elevated temperature between about 50.degree. and 200.degree. C. Thereafter, a tin based catalyst, an acetoxy cross-linking agent and an optional adhesion promoter are added to the extruder near the exit port. The resulting material has improved storage stability.

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patent: 4892907 (1990-01-01), Lampe et al.
patent: 5236997 (1993-08-01), Fujiki

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