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US 11,999,852 B2Granted
Use of aryl group containing organopolysiloxane gums as additives to increase rheological behavior
AssigneeElkem Silicones USA Corp.
InventorsRemi Thiria, Daniel Hess
Life of this patent
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Abstract
Curable silicone compositions comprising an aryl group-containing organopolysiloxane gum having a consistency of 200 to 900 as a rheological modifier are provided. Use of the curable silicone compositions comprising an aryl group-containing organopolysiloxane gum having a consistency of 200 to 900 in methods for additive manufacturing a three-dimensional silicone elastomer article are further provided.
Claims19
An addition-curable liquid silicone composition X for additive manufacturing a silicone elastomer article, wherein said addition-curable liquid silicone composition X comprises:
- (A) at least one organopolysiloxane A having at least two silicon-bonded C2 to C20 alkenyl groups per molecule,
- (B) at least one organosilicon crosslinker B containing at least two silicon-bonded hydrogen atoms per molecule,
- (C) at least one organopolysiloxane gum C having a consistency of between 200 and 900 at 25° C. and containing at least one silicon-bonded C2 to C20 alkenyl group per molecule and at least one silicon-bonded C6 to C12 aryl groups per molecule,
- (D) at least one addition reaction catalyst D,
- (E) at least one filler E,
- (F) optionally, at least one diorganohydrogensiloxy-terminated diorganopolysiloxane chain extender F,
- (G) optionally, at least one cure rate modifier G,
- (H) optionally, at least one silicone resin H, and
- (I) optionally, at least one additive I.
6 more elements
Dependencies are inferred from the claim text.