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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 7199202 B1

PDFFull Text
Date of Patent:
Apr. 03, 2007

Filed:

May. 28, 2004

Propylene polymer and composition containing the same, molded object and laminate comprising these, and processes for producing propylene polymer and composition containing the same

Applicants:

Yutaka Minami, Ichihara, JP;

Masato Kijima, Ichihara, JP;

Takuji Okamoto, Ichihara, JP;

Yasushi Seta, Ichihara, JP;

Yasuhiro Mogi, Ichihara, JP;

Tsuyoshi Ota, Ichihara, JP;

Hideo Funabashi, Ichihara, JP;

Takashi Kashiwamura, Ichihara, JP;

Noriyuki Tani, Ichihara, JP;

Masami Kanamaru, Ichihara, JP;

Koji Kakigami, Ichihara, JP;

Inventors:

Yutaka Minami, Ichihara, JP;

Masato Kijima, Ichihara, JP;

Takuji Okamoto, Ichihara, JP;

Yasushi Seta, Ichihara, JP;

Yasuhiro Mogi, Ichihara, JP;

Tsuyoshi Ota, Ichihara, JP;

Hideo Funabashi, Ichihara, JP;

Takashi Kashiwamura, Ichihara, JP;

Noriyuki Tani, Ichihara, JP;

Masami Kanamaru, Ichihara, JP;

Koji Kakigami, Ichihara, JP;

Assignee:

Idemitsu Kosan Co. Ltd., Tokyo, JP;

Attorney:

Oblon, Spivak, McClelland, Maier & Neustadt, P.C.

Primary Examiner:

Ling-Sui Choi

Assistant Examiner:

Rip A Lee

Int. Cl.
CPC ...
C08F 110/06 (2006.01); C08F 4/52 (2006.01); C08F 4/76 (2006.01);
U.S. Cl.
CPC ...
Abstract

A propylenic polymer according to the present invention or a composition thereof have an excellent melt flowability and contains a less amount of stickiness-causing components, and also has a low modulus and is pliable, and is capable of providing a transparent molded article, thus being useful as a substitute for a pliable vinyl chloride resin. In addition, a molded article made therefrom exhibits an excellent heat seal performance at a low temperature, and is excellent in terms of transparency and rigidity. Specifically, it has an isotactic pentad fraction (mmmm), which indicates a stereoregulariry, of 30 to 80%, a molecular weight distribution (Mw/Mn) of 3.5 or less and an intrinsic viscosity [η] of 0.8 to 5 dl/g.

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