Patent · US Active

Self-healing polyurethane (PU) material, double-layer self-healing PU film, and preparation method and use thereof

US11965076B2 · kind B2 · utility

0Cited by

2References

13Claims

0Family size

Assignee

LANZHOU INSTITUTE OF CHEMICAL PHYSICS, CAS · CN

Inventors

Xinrui Zhang · Kaiping, CN
Jing Xu · Lanzhou, CN
Xiaoyue Wang · Santa Clara, US
Zenghui Yang · Lanzhou, CN
Yaoming Zhang · Nanjing, CN
Qihua Wang · San Jose, US
Tingmei WANG · Lanzhou, CN

Key dates

Filing date	Apr 25, 2023
Grant date	Apr 23, 2024
Priority date	—
Expiry date	Apr 25, 2043

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08J2475/04
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Provided are a self-healing polyurethane (PU) material, a double-layer self-healing PU film, and a preparation method and use thereof. In the disclosure, the self-healing PU material includes a PU material I and a PU material II that are packaged separately. A soft-layer PU film prepared based on the PU material I and a hard-layer PU film prepared based on the PU material II could be combined to form a double-layer PU film.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.