One part room temperature vulcanizing composition having both a

Details One part room temperature vulcanizing composition having both a One part room temperature vulcanizing composition having both a

1996-01-22

1997-04-01

Dean, Ralph H.

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...

524864, C08K 326, C08L 8306

Patent

active

056166478

ABSTRACT:
A method for producing a room temperature vulcanizable composition that has a high rate of extrusion and a low sag wherein a base mixture of a diorganopolysiloxane and an end stopping cross linking ketoximosilane are reacted prior to being added to a first injection port along an extruder, an inorganic filler being added to said base mixture at a second injection port along the extruder, an M stopped silicone fluid being partitioned into two parts and the first part of said M stopped fluid being added to the filler containing base mixture at a third injection port at the middle of the extruder, and a tin catalyst, an adhesion promoter and the second part of the M stopped fluid being added at a fourth injection port along the extruder said mixture comprising these components being extruded towards the extruder exit port.

REFERENCES:
patent: 2938009 (1960-05-01), Lucas
patent: 3635743 (1972-01-01), Smith
patent: 4514529 (1985-04-01), Beers et al.
patent: 4528324 (1985-07-01), Chung et al.
MIL-A-46106B Sep. 18, 1970 Military Specification Adhesive-Sealants, Silicone, RVT, One-Component.

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