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:
May. 03, 2005
Filed:
Jun. 30, 2003
Hideaki Wakabayashi, Yokohama, JP;
Hiroyuki Ozaki, Yokohama, JP;
Kunihiko Imanishi, Yokohama, JP;
Takeshi Ishihara, Kawagoe, JP;
Masatoshi Horii, Saitama, JP;
Satoshi Ueki, Tokyo, JP;
Hideaki Wakabayashi, Yokohama, JP;
Hiroyuki Ozaki, Yokohama, JP;
Kunihiko Imanishi, Yokohama, JP;
Takeshi Ishihara, Kawagoe, JP;
Masatoshi Horii, Saitama, JP;
Satoshi Ueki, Tokyo, JP;
Tonen Chemical Corporation, Tokyo, JP;
Abstract
A modified polypropylene which is a polypropylene having a value of racemic diad fraction [r] in a specific range and modified with a specific compound, e.g., (meth)acrylic acids, and their derivatives or styrene derivatives to have well-balanced properties of affinity for polypropylene-based materials, thermal stability, and high solubility in organic solvents; and a process for producing same. More particularly, the modified polypropylene which is a polypropylene having a value of racemic diad fraction [r] of 0.51 to 0.88, determined byC-NMR analysis, and chemically modified with a compound serving as a modifier, e.g., (meth)acrylic acids, and their derivatives or styrene derivatives; and the process for producing the modified polypropylene, wherein the polypropylene having a value of racemic diad fraction [r] in the above range is reacted with at least one type of the compound serving as the modifier in the presence of a radical initiator.