	US 12,410,313 B2
	Mineral-reinforced co-polyester blend
Marius Nolte, Cologne (DE); and Ralf Hufen, Duisburg (DE)
Assigned to Covestro Deutschland AG, Leverkusen (DE)
Appl. No. 17/615,607
Filed by Covestro Intellectual Property GmbH & Co. KG, Leverkusen (DE)
PCT Filed Jun. 17, 2020, PCT No. PCT/EP2020/066784 § 371(c)(1), (2) Date Dec. 1, 2021, PCT Pub. No. WO2020/260096, PCT Pub. Date Dec. 30, 2020.
Claims priority of application No. 19183125 (EP), filed on Jun. 28, 2019.
Prior Publication US 2022/0315755 A1, Oct. 6, 2022
Int. Cl. C08L 67/02 (2006.01)

CPC C08L 67/02 (2013.01) [C08L 2205/025 (2013.01)]

11 Claims

1. A composition containing:

A) 60% to 80% by weight of a polyester based on terephthalic acid and at least one dianhydrohexitol and a mixture of isosorbide, cyclohexanedimethanol and 7% by weight of ethylene glycol, wherein component A has a weight-average molecular weight Mw measured by gel permeation chromatography in 1,1,1,3,3,3-hexafluoro-2-propanol using a polyethylene terephthalate standard of 10 to 100 kg/mol,

B) 10% to 30% by weight of a polyester based on succinic acid and at least one aliphatic, araliphatic or cycloaliphatic diol,

C) 3% to 12% by weight of at least one mineral reinforcer based on talc.