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:
May. 30, 1995
Filed:
Feb. 01, 1994
Rong-Shuh Chang, Hsinchu, TW;
Tsai-Wie Tseng, Hsinchu, TW;
Shinn-Jen Chang, Hsinchu, TW;
Chien-Hsin D Cheng, Hsinchu, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
A water retaining adhesive composition prepared by polymerizing and partially crosslinking 100 parts by weight of a 20 to 35 wt % solution of the acrylic polymer with 2 to 5 parts by weight of the amine group compound, amide group compound or amino group compound at a temperature of 20.degree. C. to 80.degree. C.; adjusting the pH value of the resultant partially crosslinked polymer to 6.0 to 7.0; and then sequentially compounding 10 to 40 parts by weight of modifiers and 2 to 5 parts by weight of water retaining agent in the partially crosslinked polymer. The modifier is a polyol, a polyalcohol or a poly(ether alcohol). The water retaining agent is 2-pyrrolidone-5-carboxylate.