Silicone extrusion stock

Details Silicone extrusion stock Silicone extrusion stock

1986-10-27

1987-10-20

Marquis, Melvyn I.

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...

524588, 524847, C08K 334

Patent

active

047014911

ABSTRACT:
A method of producing an improved extruding silicone rubber stock consists essentially of mixing together a polydiorganosiloxane having a Williams Plasticity Number of from 125 to 180 and a get slope activity of less than 25 and a reinforcing silica filler having a surface area of greater than 150 m.sup.2 /g and a hydrophobic surface from a silane treatment to give a stock which has a Garvey rating of greater than 3.5 at an extrusion rate of 20 rpm.

REFERENCES:
patent: 2721857 (1955-10-01), Dickmann
patent: 3070560 (1962-12-01), Metevia
patent: 3734882 (1973-05-01), Talcott
patent: 4010136 (1977-03-01), Blizzard et al.
patent: 4122247 (1978-10-01), Evans
patent: 4361655 (1982-11-01), Tyler
patent: 4551515 (1985-11-01), Herberg et al.

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