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:
Aug. 07, 2001
Filed:
Mar. 07, 1996
Tatsuya Ohsumi, Kyoto, JP;
Toshihiro Kanzawa, Kyoto, JP;
Sanyo Chemical Industries, Ltd., Kyoto, JP;
Abstract
A thermoreversibly thickening binder composition, comprises a resin latex wherein the amount of an emulsifier in the aqueous phase is smaller than 0.01 mmol/g, and a vinyl polymer having reversibility of hydrophilicity and hydrophobicity at a certain transition temperature. The resin latex is preferably prepared by using an emulsifier having a radically polymerizable group, and preferable as said vinyl polymer is a polymer having a cation-forming group. The binder composition exhibits an excellent chemical stability to factors other than heat without causing migration of the latex resin particles onto the surface of the coated layer even during the time of heat-drying, and thermoreversible thickening effects caused by a sharp heat-sensitive gelling properties. When applied to preparation of coated paper and pressure-sensitive recording sheet, the binder composition provides products excellent in gloss, printability and color producing properties.