Curable filled polysiloxane compositions

Details Curable filled polysiloxane compositions Curable filled polysiloxane compositions

1992-11-19

1995-06-20

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...

524425, 524506, 524854, 524188, 524731, 525103, C08K 554, C08L 8300

Patent

active

054259479

ABSTRACT:
The specification describes and claims a moisture curable composition comprising hydroxypolysiloxane, silane curing agent, finely divided filler (preferably calcium carbonate), catalyst, and as rheological additive, a polymer having on its polymer chain at least one carboxylic acid anhydride group. Preferred rheological additives are polybutadiene polymers treated with e.g. maleic acid anhydride. These products have improved rheology for sealant use.

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European Search Report, for EP 92 31 0475, dated 3 Mar. 93.

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