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:
Jan. 22, 2013
Filed:
Jul. 09, 2009
Osamu Wakisaka, Kasugai, JP;
Akihiro Shibahara, Inuyama, JP;
Seiichi Kawahara, Nagaoka, JP;
Yoshimasa Yamamoto, Nagaoka, JP;
Nanthaporn Pukkate, Komaki, JP;
Osamu Wakisaka, Kasugai, JP;
Akihiro Shibahara, Inuyama, JP;
Seiichi Kawahara, Nagaoka, JP;
Yoshimasa Yamamoto, Nagaoka, JP;
Nanthaporn Pukkate, Komaki, JP;
Tokai Rubber Industries, Ltd., Komaki-shi, JP;
National University Corporation Nagaoka University of Technology, Nagaoka-shi, JP;
Abstract
A modified natural rubber particle having carbon-carbon double bonds assigned to multifunctional vinyl monomers graft-copolymerized onto the surface of the modified natural rubber particle, which is prepared by graft-copolymerization of multifunctional vinyl monomers having two or more carbon-carbon double bonds onto natural rubber particles or deproteinized natural rubber particles. One of the methods for producing a modified natural rubber particle includes the steps of: forming inclusion complex of the multifunctional vinyl monomers having two or more carbon-carbon double bonds with a guest-protecting agent to protect at least one of the double bonds of the multifunctional vinyl monomers; graft-copolymerizing the resulting inclusion complex onto natural rubber particles or deproteinized natural rubber particles; and deprotecting the protected double bonds by removing the guest-protecting agent from the obtained graft-copolymer.