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:
Oct. 17, 1978
Filed:
May. 16, 1977
Applicant:
Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K / ;
U.S. Cl.
CPC ...
252194 ; 526263 ; 526264 ; 526273 ;
Abstract
There is provided a hygroscopic resin comprising a vinyl polymer having an epoxy group, said vinyl polymer being a copolymerization product between a vinyl monomer having a hydrophilic property and a further vinyl monomer having an epoxy group. This hygroscopic resin is not soluble in water or organic solvent and is thus useful for various applications, e.g., a humidity sensor can be made by dispersing a conductive powder in the hygroscopic resin. This humidity sensor has high sensitivity to humidity and can operate stably for a long time.