logo

For the Inventor, By the Inventor

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.:

US 7847040 B1

PDFFull Text
Date of Patent:
Dec. 07, 2010

Filed:

Apr. 08, 2005

α-olefin-based polymer composition, molded product formed from the composition, and novel polymer

Applicants:

Ryoji Mori, Ichihara, JP;

Takashi Nakagawa, Ichihara, JP;

Shigenobu Ikenaga, Ichihara, JP;

Hiromasa Marubayashi, Chigasaki, JP;

Masahiko Okamoto, Chiba, JP;

Yasushi Tohi, Ichihara, JP;

Kouji Nagahashi, Kuga-gun, JP;

Inventors:

Ryoji Mori, Ichihara, JP;

Takashi Nakagawa, Ichihara, JP;

Shigenobu Ikenaga, Ichihara, JP;

Hiromasa Marubayashi, Chigasaki, JP;

Masahiko Okamoto, Chiba, JP;

Yasushi Tohi, Ichihara, JP;

Kouji Nagahashi, Kuga-gun, JP;

Assignee:

Mitsu Chemicals, Inc., Tokyo, JP;

Attorney:

Foley & Lardner LLP

Primary Examiner:

Ling-Siu Choi

Assistant Examiner:

Sonya Wright

Int. Cl.
CPC ...
C08F 4/48 (2006.01);
U.S. Cl.
CPC ...
Abstract

A composition having excellent transparency, flexibility, rubber elasticity, thermal resistance, impact resistance, abrasion resistance and the like, a composition having excellent rigidity and impact resistance as well as excellently balanced in whitening resistance, abrasion resistance and heat sealability, and a composition having excellent rubbery properties, thermal resistance, abrasion resistance and flexibility are provided. A composition comprising a specific propylene•α-olefin copolymer for which, in a signal chart measured byC-NMR and predetermined such that the peak present at the highest magnetic field among the signals originating from CH (methine) of the constituent unit derived from an α-olefin having 4 to 20 carbon atoms is to be at 34.4 ppm, an absorption intensity A at about 22.0 to 20.9 ppm and an absorption intensity B at about 19.0 to 20.6 ppm satisfy the following relational expressions (i) and (ii) with respect to an absorption intensity C at about 19.0 to 22.0 ppm, which is assignable to propylene methyl:()×100≦8  (i), and()×100≧60  (ii),

Find Patent Forward Citations

Loading…