	US 12,134,234 B2
	Weldable thermoplastic composite composites
Nathan J. Bachman, West Chester, PA (US); and Robert J. Barsotti, Newtown Square, PA (US)
Assigned to ARKEMA INC., King of Prussia, PA (US)
Appl. No. 17/774,954
Filed by Arkema Inc., King of Prussia, PA (US)
PCT Filed Nov. 6, 2020, PCT No. PCT/US2020/059268 § 371(c)(1), (2) Date May 6, 2022, PCT Pub. No. WO2021/092276, PCT Pub. Date May 14, 2021.
Claims priority of provisional application 62/932,760, filed on Nov. 8, 2019.
Prior Publication US 2022/0379568 A1, Dec. 1, 2022
Int. Cl. B29C 65/42 (2006.01); B32B 7/12 (2006.01); B32B 27/08 (2006.01); B32B 27/16 (2006.01); B32B 27/36 (2006.01); B32B 37/14 (2006.01); C08L 33/10 (2006.01)

CPC B29C 65/425 (2013.01) [B32B 7/12 (2013.01); B32B 27/08 (2013.01); B32B 27/16 (2013.01); B32B 27/36 (2013.01); B32B 37/144 (2013.01); C08L 33/10 (2013.01); B32B 2250/03 (2013.01); B32B 2250/24 (2013.01); B32B 2307/54 (2013.01); B32B 2307/558 (2013.01); B32B 2398/20 (2013.01); C08L 2203/30 (2013.01)]

7 Claims

1. An interlayer polymer composition for welding a thermoplastic composite structure (1) to a thermoplastic or thermoset structure, or a metal part (2) comprising a thermoplastic polymer having a Tg of less than 120° C., wherein said interlayer polymer composition is compatible with said structures (1) and (2), wherein the interlayer polymer composition has a Tg at least 10° C. less than a Tg of a matrix polymer of the thermoplastic composite structure (1), and wherein said interlayer polymer composition further comprises impact modifiers present at 1 to 60 weight percent, based on the total interlayer polymer composition.