Liquid silicone rubber composition
AssigneesDow Silicones Corporation, Dow Global Technologies LLC
InventorsHumen Phukan, Parag Sawant, Tushar Shinde, Padmadas Nair, Shamit Pillay
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Abstract
A liquid silicone rubber (LSR) composition, and articles and coatings made therewith are disclosed. Also disclosed is a process to provide for the composition, and a process to coat on textile.
Claims17
A liquid silicone rubber composition comprising:
- (i) a liquid silicone rubber base comprising a reinforcing filler;
- (ii) a hydrophobic silica aerogel in an amount of from 3 to 8 weight percent (wt %) of the composition, where the hydrophobic silica aerogel is different from the reinforcing filler of the liquid silicone rubber base (i);
- (iii) an elastomeric powder in an amount of from 3 to 8 wt % of the composition;
- and
- (iv) a volatile solvent;
- wherein the weight ratio of the hydrophobic silica aerogel (ii) to the elastomeric powder (iii) is from 0.8:1 to 2:1.
A method for coating a textile, the method comprising:
- coating the textile with a liquid silicone rubber composition;
- and
- curing the composition to form a coating;
- wherein the liquid silicone rubber composition comprises:
- (i) a liquid silicone rubber base comprising a reinforcing filler;
- (ii) a hydrophobic silica aerogel in an amount of from 3 to 8 weight percent (wt %) of the composition, where the hydrophobic silica aerogel is different from the reinforcing filler of the liquid silicone rubber base (i);
- (iii) an elastomeric powder in an amount of from 3 to 8 wt % of the composition;
- and
- (iv) a volatile solvent;
- and
- wherein the weight ratio of the hydrophobic silica aerogel (ii) to the elastomeric powder (iii) is from 0.8:1 to 2:1.
A method to impart a mattifying effect to a silicone elastomer article or composite part, wherein the silicone elastomer article or composite part is obtained from curing a liquid silicone rubber composition comprising a combination of hydrophobic silica aerogel and elastomeric powder where the ratio of hydrophobic silica aerogel to elastomeric powder is from 0.8:1 to 2:1 to 2:1.
Dependencies are inferred from the claim text.