US 12,351,708 B2
Polyamide/polyolefin blends and corresponding mobile electronic device components
Chinomso Nwosu, Alpharetta, GA (US); Vijay Gopalakrishnan, Dunwoody, GA (US); and Raleigh L. Davis, Suwanee, GA (US)
Assigned to SOLVAY SPECIALTY POLYMERS USA, LLC, Alpharetta, GA (US)
Appl. No. 17/608,484
Filed by SOLVAY SPECIALTY POLYMERS USA, LLC, Alpharetta, GA (US)
PCT Filed May 14, 2020, PCT No. PCT/EP2020/063492
§ 371(c)(1), (2) Date Nov. 3, 2021,
PCT Pub. No. WO2020/244899, PCT Pub. Date Dec. 10, 2020.
Claims priority of provisional application 62/857,470, filed on Jun. 5, 2019.
Claims priority of application No. 19198882 (EP), filed on Sep. 23, 2019.
Prior Publication US 2022/0220293 A1, Jul. 14, 2022
Int. Cl. C08L 23/26 (2025.01); C08K 7/14 (2006.01); C08L 51/06 (2006.01); C08L 77/02 (2006.01); C08L 77/06 (2006.01)
CPC C08L 23/26 (2013.01) [C08K 7/14 (2013.01); C08L 51/06 (2013.01); C08L 77/02 (2013.01); C08L 77/06 (2013.01)] 21 Claims
 
1. A polymer composition comprising:
a functionalized polyolefin,
an aliphatic polyamide,
a glass fiber, and
a functionalized polyolefin weight ratio of from 55% to 95%,
wherein the polymer composition has a Dk at 1 MHz of no more than 3.2 and a Df at 1 MHz of no more 0.007,
wherein
the functionalized polyolefin weight ratio is given by the formula: 100×WPO/WPO+WPA, and
WPA and WPO are, respectively, the weight of the aliphatic polyamide and the functionalized polyolefin in the polymer composition and
wherein
the functionalized polyolefin comprises recurring units RPO1 and RPO2 that are represented by the following formulae, respectively:

OG Complex Work Unit Math
wherein R5 to R8 are independently selected from the group consisting of a hydrogen and an alkyl group represented by the formula —(CH2)m—CH3, where m is an integer from 0 to 5; R9 to R12 are independently selected from the group consisting of a hydrogen, an alkyl group represented by the formula —(CH2)m′—CH3, where m, is an integer from 0 to 5, and a reactive group that reacts with an amine group or a carboxylic acid group of the polyamide polymer; and wherein at least one of R9 to R12 is a reactive group, and
the functionalized polyolefin comprises from 0.05 mol % to 1.5 mol % of recurring unit RPO2.