US 10,472,515 B2 · Biodegradable polyester composition

Abstract

The present invention discloses a biodegradable polyester composition, wherein based on a total weight of the biodegradable polyester composition, a weight content of styrene is 0.1 ppm-30 ppm. When the weight content of styrene which is added into a chosen formula of the biodegradable polyester composition based on the total weight of the biodegradable polyester composition is controlled as 0.1 ppm-30 ppm, the present invention may guarantee the biodegradable polyester composition with excellent transmittance and haze effect, and meanwhile may guarantee the biodegradable polyester composition with suitable UV resistance function, without reducing a degradation rate of the biodegradable polyester composition.

Claims16

Dependent claims

A biodegradable polyester composition, characterized in that, it comprises following components in parts by weight:

i) 60 to 100 parts of a biodegradable aliphatic-aromatic polyester;
ii) 0 to 40 parts of a polylactic acid;
iii) 0 to 35 parts of an organic filler and/or an inorganic filler;
and
wherein based on a total weight of the biodegradable polyester composition, a weight content of styrene is 0.1 ppm-30 ppm.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

15/580,173Filed 1 Mar 2017

Priority

CN 2016 1 058350422 Jul 2016

Published

US 2018/0298187 A118 Oct 2018

Granted

12 Nov 2019

Term ends

Not estimatedThe source records don’t support an estimate.

Classification14 codes

C08L 67/02
Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain ; Compositions of derivatives of such polymers:…
C08G 63/183
Acids containing aromatic rings: terephthalic acids
C08K 5/101
Esters; Ether-esters: of monocarboxylic acids
C08K 13/02
Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential: organic and…

Biodegradable polyester composition

Life of this patent

Biodegradable polyester composition

Life of this patent

Abstract

Claims16