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US 12,655,294 B2Granted
Thermoplastic elastomer-silicone composition
AssigneeArkema France
InventorsSebastien Merzlic, Philippe Blondel, Florent Abgrall, Karine Loyen, Damien Rauline, Sebastien-Jun Mougnier
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Abstract
A composition including: (A) a copolymer having rigid blocks and flexible blocks (TPE), (B) a non-crosslinked polysiloxane silicone, preferably a non-crosslinked polyorganosiloxane, (C) a compatibilizer, improving the compatibility between the TPE and the silicone, the compatibilizer (C) being chosen from a polyolefin or a mixture of polyolefins, and optionally (D) an additive.
Claims24
A composition comprising:
- (A) a block copolymer having rigid blocks and flexible blocks (TPE), and
- (B) a non-crosslinked polysiloxane silicone, wherein the non-crosslinked polyorganosiloxane has a poly(organo)siloxane backbone,
- 5% to 45% of (C) a compatibilizer, improving the compatibility between the TPE and the silicone, chosen from a polyolefin or a mixture of polyolefins, and wherein the polyolefin or the mixture of polyolefins of the compatibilizer (C) carries a functional group chosen from maleic anhydride, carboxylic acid, carboxylic anhydride, and epoxide,
- wherein the non-crosslinked polysiloxane silicone is non-crosslinkable,
- the composition comprising, by weight:
- from 55% to 95% of copolymer (A),
- from 5% to 45% of silicone (B),
- from 5% to 45% of compatibilizer (C),
- optionally, from 0% to 15% of at least one additive (D),
- with regard to the total weight of the composition, this being 100%.
7 more elements
Dependencies are inferred from the claim text.