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:
Jul. 20, 1993
Filed:
Jan. 10, 1992
Saiden Chemical Industry Co., Ltd., Tokyo, JP;
Abstract
The present invention provides an alkali soluble pressure sensitive adhesive composition comprising 100 parts by weight of a polymer obtained by polymerization of carboxyl group-containing vinyl monomer as an adhesive component and 50-500 parts by weight of a nonionic surface active agent capable of endowing plasticity as a main additive component. The tack papers or the adhesive tapes using the adhesive compositions according to the invention can be readily dissolved in alkali water in the step of repulping and the reclaimed papers without adhesiveness can be prepared with them. Further, the alkali soluble pressure sensitive adhesive compositions of the present invention are excellent in moisture dependence, tack properties at low temperatures and bleeding properties at high temperatures. Especially, the compositions are improved in shearing strength by adding cross-linking agents and are improved in adhesiveness to glass by adding silane coupling agents, and so are suitable for labels and the like of beer bottles, etc.