US 2022/0275201 A1 · BIODEGRADABLE POLYMERIC MATERIAL, BIODEGRADABLE PRODUCTS AND METHODS OF MANUFACTURE AND USE THEREFOR

Abstract

The invention encompasses biodegradable compositions (e.g., biodegradable plastics) and methods of preparation and use thereof, and disposable products made from the claimed compositions. Raw materials for preparing the biodegradable plastic include one or more polymers, fiber, starch, a plasticizer, and a coupling agent. The biodegradable composition has the advantages of short degradation cycle, good mechanical properties, and a low manufacturing cost.

Claims22

Dependent claims

A biodegradable composition comprising:

(i) about 10-95% (w/w) of a polymer comprising one or more of biodegradable polyesters;
(ii) about 0.1-50 (w/w) of starch;
(iii) about 0.1-50 (w/w) of one or more of inorganic filler;
and
(iv) about 0.1-50 (w/w) of fiber comprising one or more of biomass, wherein the composition exhibits a 90% disintegration completion within about 180 to about 365 days in soil at ambient temperature.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

17/561,279Filed 23 Dec 2021

Priority

CN 202110129521.729 Jan 2021

Published

1 Sep 2022

Term ends

Not estimatedThe source records don’t support an estimate.

Classification7 codes

C08L 67/04
Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain ; Compositions of derivatives of such polymers:…
C08L 67/02
Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain ; Compositions of derivatives of such polymers:…
C08L 2201/06
Properties: biodegradable
C08L 2205/02
Polymer mixtures characterised by other features: containing two or more polymers of the same C08L -group

Biodegradable polymeric material, biodegradable products and methods of manufacture and use therefor

Life of this patent

Biodegradable polymeric material, biodegradable products and methods of manufacture and use therefor

Life of this patent

Abstract

Claims22