Silicone rubber microsuspension and method for its preparation

Details Silicone rubber microsuspension and method for its preparation Silicone rubber microsuspension and method for its preparation

1992-06-19

1994-12-06

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...

524773, 524837, 524861, 524862, 524588, C08K 506

Patent

active

053711394

ABSTRACT:
The present invention relates to a silicone rubber microsuspension which has an excellent high-concentration storage stability, and to a method for the preparation of a silicone rubber microsuspension. The silicone rubber microsuspension comprises a microparticulate silicone rubber having an average particle diameter not exceeding 10 micrometers, a nonionic surfactant whose HLB value is less than 10, a nonionic surfactant whose HLB value is at least 10, and water, with the proviso that the content of the microparticulate silicone rubber in the silicone rubber microsuspension is at least 50 weight percent. The method for the preparation of said silicone rubber microsuspension comprises mixing a liquid silicone rubber composition, a nonionic surfactant having an HLB value of less than 10, a nonionic surfactant having an HLB value of at least 10, and water.

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Paul Becher, Emulsions: Theory and Practice, 1966, p. 248.

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