	US 12,269,923 B2
	Molding compound containing polyether block amide (PEBA)
Franz-Erich Baumann, Duelmen (DE); Kathrin Salwiczek, Recklinghausen (DE); and Alexander Richter, Haltern am See (DE)
Assigned to Evonik Operations GmbH, Essen (DE)
Appl. No. 17/414,674
Filed by Evonik Operations GmbH, Essen (DE)
PCT Filed Oct. 9, 2019, PCT No. PCT/EP2019/077424 § 371(c)(1), (2) Date Jun. 16, 2021, PCT Pub. No. WO2020/126148, PCT Pub. Date Jun. 25, 2020.
Claims priority of application No. 18213932 (EP), filed on Dec. 19, 2018.
Prior Publication US 2022/0025118 A1, Jan. 27, 2022
Int. Cl. C08G 69/40 (2006.01); B29B 9/12 (2006.01); B29K 71/00 (2006.01); B29K 77/00 (2006.01); B29K 105/00 (2006.01); C08J 5/18 (2006.01)

CPC C08G 69/40 (2013.01) [B29B 9/12 (2013.01); C08J 5/18 (2013.01); B29K 2071/00 (2013.01); B29K 2077/00 (2013.01); B29K 2105/0085 (2013.01); C08J 2377/00 (2013.01)]

10 Claims

1. A moulding composition, comprising:

polyether block amide (PEBA) having a subunit 1 and a subunit 2,

wherein the subunit 1 comprises at least one linear aliphatic diamine containing 5 to 15 carbon atoms and at least one linear aliphatic dicarboxylic acid containing 6 to 16 carbon atoms, the subunit 2 comprises at least one polyether diol selected from the group consisting of polypropane-1,3-diol, polytetramethylene glycol, and mixtures thereof, a sum total of the carbon atoms from the diamine and the dicarboxylic acid is 19 or 21 carbon atoms; and

a number-average molar mass of the subunit 2 is 400-700 g/mol and subunit 1 has a number-average molar mass of 500 to 1,800 g/mol, and a haze value of the PEBA is about 66 or lower, as measured by means of 60×60×2 mm plaques to ASTM standard D 1003 using a Konica-Minolta CM-3600d.