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:
Mar. 28, 2006
Filed:
Dec. 20, 2001
Ho-yeul Choi, Daejeon, KR;
Seung-uk Yeu, Daejeon, KR;
Chang-sun Han, Daejeon, KR;
Wan-sik Cha, Gwangmyung, KR;
Ho-Yeul Choi, Daejeon, KR;
Seung-Uk Yeu, Daejeon, KR;
Chang-Sun Han, Daejeon, KR;
Wan-Sik Cha, Gwangmyung, KR;
LG Chem, Ltd., Seoul, KR;
Abstract
The present invention relates to styrene-butadienie latex, specifically a method of preparing latex for coating paper which shows excellent adhesion while maintaining printing property and comprised in a composition for coating paper. To achieve the object of the present invention, it provides a method of preparing styrene-butadiene latex comprising the step of emulsion polymerization by adding 0.1 to 10 parts by weight of chain transfer agent comprising; i) monofunctional thiol compound, and ii) polyfunctional thiol compound having at least two thiol groups based on 100 parts by weight of styrene-butadiene monomer composition. The latex prepared by the present method can easily control molecular weight and gel content, so that polymerization stability and mechanical stability are improved and thus, it is possible to print paper with high speed and to improve adhesion.