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. 29, 2014
Filed:
Mar. 29, 2010
Ryouji Oda, Tokyo, JP;
Sadaharu Hashimoto, Tokyo, JP;
Ryouji Oda, Tokyo, JP;
Sadaharu Hashimoto, Tokyo, JP;
Zeon Corporation, Tokyo, JP;
Abstract
Provided is an adhesive composition for labels, which can be easily applied at a relatively low temperature and has satisfactory die cutting properties so that the adhesive composition can contribute to an improvement of the productivity of labels, and which is capable of producing labels having excellent holding power and tackiness. There is disclosed an adhesive composition for labels comprising: a block copolymer A represented by the following general formula (A); a polymer C, which is a polymer having a glass transition temperature of −30° C. or lower, or a block copolymer that has a polymer block having a glass transition temperature of −30° C. or lower at an end of the polymer chain; and a tackifier resin D.Ar1-D-Ar2  (A),in the general formula (A), Ar1represents an aromatic vinyl polymer block having a weight average molecular weight of 6,000 to 20,000; Ar2represents an aromatic vinyl polymer block having a weight average molecular weight of 22,000 to 400,000; and Drepresents a conjugated diene polymer block having a vinyl bond content of 1 mol % to 20 mol %.