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. 27, 2007
Filed:
Mar. 29, 2005
Applicants:
Makoto Ashiura, Hiratsuka, JP;
Tetsuji Kawazura, Hiratsuka, JP;
Inventors:
Makoto Ashiura, Hiratsuka, JP;
Tetsuji Kawazura, Hiratsuka, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08C 19/22 (2006.01); C08C 19/25 (2006.01); C08F 8/30 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for modification of a polymer comprising modifying a polymer (A) capable of decomposing by carbon radicals present in the molecule thereof using a compound (B) having a nitroxide radical in the molecule thereof and a radical initiator (C) in a ratio of (B)/(C) (molar ratio) of at least 0.7, whereby organic groups derived from the nitroxide radicals are introduced into the polymer and a modified unhalogenated butyl rubber obtained therefrom.