公开(公告)号：US20230151194A1

公开(公告)日：2023-05-18

申请号：US17987879

申请日：2022-11-16

Applicant: Nano and Advanced Materials Institute Limited

Inventor： Yeuk Tin LAU ,  Lisi HE ,  Sui Han SIN ,  Guozhuangqi YAN ,  Kwan Wing CHEU ,  Shing Hang NG ,  Kin Hang Ken NG

IPC: C08L23/06 ,  C12N11/08

CPC classification number: C08L23/06 ,  C12N11/08 ,  C08L2207/066

Abstract: An anaerobic biodegradation accelerator (ABA) for a host polymeric material, an ABA-incorporated polymeric material, and methods for production and application thereof are provided. The ABA includes a carrier matrix, at least one biotic component, a protective layer, a biodiversity promotor, a surfactant, a compatibilizer, an antioxidant, a plasticizer and a properties modifier. The ABA significantly enhances biodegradation rate of polymeric materials in anaerobic environments, and does not impact significantly on mechanical properties and other properties of the original polymeric material including food contact safety when they are used in food contact safe products such as cutleries, lunch boxes, cups and cup lids.

公开(公告)号：US20250066598A1

公开(公告)日：2025-02-27

申请号：US18812557

申请日：2024-08-22

Applicant: Nano and Advanced Materials Institute Limited

Inventor： Lisi HE ,  Yeuk Tin Lau ,  Man Kit CHAN ,  Jianli WANG ,  Shing Hang NG

IPC: C08L29/04 ,  B29B9/10 ,  B29K29/00 ,  B29K105/00 ,  B29L31/00 ,  C08J3/20 ,  C08K3/26 ,  C08K5/00 ,  C08K5/098 ,  C08K5/20 ,  C08K13/02

Abstract: The present invention provides a polyvinyl alcohol composition comprising polyvinyl alcohol, plasticizer, and one or more components selected from the group consisting of biodegradable polymer, compatibilizer, surfactant, antioxidant, and properties modifier. The polyvinyl alcohol composition of the present application is melt-processable, biodegradable and water-soluble. The present invention also relates to the method for producing the polyvinyl alcohol composition, and the use of the same.