	US 12,466,941 B2
	Composites for reducing noise
Prasad Raut, San Jose, CA (US); and Maziyar Bolourchi, Los Gatos, CA (US)
Assigned to Imerys USA, Inc., Roswell, GA (US)
Appl. No. 17/047,140
Filed by IMERYS USA, INC., Roswell, GA (US)
PCT Filed Apr. 11, 2019, PCT No. PCT/US2019/026863 § 371(c)(1), (2) Date Oct. 13, 2020, PCT Pub. No. WO2019/200023, PCT Pub. Date Oct. 17, 2019.
Claims priority of provisional application 62/657,226, filed on Apr. 13, 2018.
Prior Publication US 2021/0163727 A1, Jun. 3, 2021
Int. Cl. C08L 23/12 (2006.01); C08K 3/36 (2006.01); C08F 10/06 (2006.01)

CPC C08L 23/12 (2013.01) [C08K 3/36 (2013.01); C08F 10/06 (2013.01); C08K 2201/003 (2013.01); C08K 2201/006 (2013.01); C08L 2207/04 (2013.01)]

19 Claims

1. A noise-reducing composition comprising a thermoplastic elastomer-wollastonite composite, wherein

the thermoplastic elastomer is selected from thermoplastic polyurethane,

thermoplastic vulcanizates, thermoplastic polyamides, thermoplastic styrenics,

thermoplastic copolyester and combinations thereof;

and the thermoplastic elastomer-wollastonite composite comprises wollastonite in an amount of from about 30 to about 45 weight percent based on the total weight of the thermoplastic elastomer-wollastonite composite and having a BET surface area in the range of from about 0.2 to about 3.0 m²/g.