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.:
Date of Patent:
Jan. 17, 2023
Filed:
May. 07, 2019
Sumitomo Rubber Industries, Ltd., Kobe, JP;
Tokyo Institute of Technology, Tokyo, JP;
Toshiyuki Tarao, Kobe, JP;
Mami Tanaka, Kobe, JP;
Toshikazu Takata, Tokyo, JP;
Jun Sawada, Tokyo, JP;
SUMITOMO RUBBER INDUSTRIES, LTD., Kobe, JP;
TOKYO INSTITUTE OF TECHNOLOGY, Tokyo, JP;
Abstract
An object of the present invention is to provide a novel rotaxane and a polyurethane using the same. The present invention provides a rotaxane having a crown ether and a chain molecule piercing through the cyclic structure of the crown ether, wherein a hydroxyl group exists at one terminal of the chain molecule, and a hydroxyl group bonds to the cyclic structure of the crown ether. The present invention further provides a polyurethane using the rotaxane as a polyol component.