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:
Mar. 22, 1988
Filed:
May. 20, 1985
Applicant:
Inventors:
Toyoichi Tanaka, Newton, MA (US);
Yoshitsugu Hirokawa, Winchester, MA (US);
Assignee:
Massachusetts Institute of Technology, Cambridge, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08J / ; C08K / ; C08F / ;
U.S. Cl.
CPC ...
524742 ; 524555 ; 524812 ; 524744 ; 5263031 ; 526306 ;
Abstract
An ionic gel formed by polymerization of isopropylacrylamide in the presence of an ion-containing monomer, a crosslinking agent and a suitable liquid medium is provided. The gel is capable of drastic volume change in response to solvent composition, temperature, pH, or ion composition.