logo

For the Inventor, By the Inventor

The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 12774388 B1

PDFFull Text
Date of Patent:
Oct. 27, 2026

Filed:

Dec. 13, 2023

Energy absorbing foam material and method of using thereof

Applicant:

Nano and Advanced Materials Institute Limited, Hong Kong, HK;

Inventors:

Yong Zhu, Hong Kong, HK;

Jianping Han, Hong Kong, HK;

Chenmin Liu, Hong Kong, HK;

Assignee:

Hong Kong Applied Science and Technology Research Institute Company Limited, Hong Kong, CN;

Attorneys:

IDEA Intellectual Limited

Sam T. Yip

Primary Examiner:

Melissa A Rioja

Int. Cl.
CPC ...
B29C 41/00 (2006.01); B29C 41/46 (2006.01); B29K 75/00 (2006.01); C08G 18/16 (2006.01); C08G 18/18 (2006.01); C08G 18/24 (2006.01); C08G 18/48 (2006.01); C08G 18/76 (2006.01); C08L 75/04 (2006.01);
U.S. Cl.
CPC ...
C08L 75/04 (2013.01); B29C 41/003 (2013.01); B29C 41/46 (2013.01); B29K 2075/00 (2013.01); B29K 2995/0077 (2013.01); B29K 2995/0091 (2013.01); C08L 2201/12 (2013.01); C08L 2203/14 (2013.01);
Abstract

The present invention provides an energy absorbing foam material includes at least one shape memory polymer foam having a non-impact resistant configuration in a first force-application time, an impact resistant configuration in a second force-application time at a working temperature, a first glass transition temperature equal to or lower than a working temperature in the first force-application time, and a second glass transition temperature higher than a working temperature in the second force-application time. A second elastic modulus of the shape memory polymer foam in the second force-application time is at least 10 times than a first elastic modulus of the shape memory polymer form in the first force-application time at the working temperature.

Find Patent Forward Citations

Zhu, Yong. (2026). Energy absorbing foam material and method of using thereof (U.S. Patent No. 12774388). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12774388

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…