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, 2008
Filed:
Oct. 27, 2006
Takuji Okamoto, Chiba, JP;
Takashi Kashiwamura, Chiba, JP;
Noriyuki Tani, Chiba, JP;
Yutaka Minami, Chiba, JP;
Masami Kanamaru, Chiba, JP;
Koji Kakigami, Chiba, JP;
Takuji Okamoto, Chiba, JP;
Takashi Kashiwamura, Chiba, JP;
Noriyuki Tani, Chiba, JP;
Yutaka Minami, Chiba, JP;
Masami Kanamaru, Chiba, JP;
Koji Kakigami, Chiba, JP;
Idemitsu Kosan Co., Ltd,, Tokyo, JP;
Abstract
The propylene polymer of the present invention satisfies (1) a 25° C. hexane soluble content (H25) of 0-80 wt %; and (2) either no melting temperature (Tm) measurable by differential scanning calorimetry (DSC), or a melting temperature (Tm) satisfying, if measurable by DSC, the following relationship: ΔH≧3×(Tm−120) wherein ΔH is a melting endotherm (J/g). The propylene homopolymer of the present invention satisfies (1) a meso pentad fraction (mmmm) of 30-60 mol %; (2) a racemic pentad fraction (rrrr) satisfying the following relationship: [rrrr/(1−mmmm)]≦0.1; (3) a fraction (W25) eluted at a temperatures up to 25° C. by temperature-programmed chromatography, of from 20-100 wt %; and, (4) a pentad fraction (rmrm) of more than 2.5 mol %. The propylene copolymer of the present invention satisfies (1) a stereoregularity index (P) of 55-90 mol % as determined byC-NMR measurement; and (2) a fraction (W25) eluted at a temperatures up to 25° C. by temperature-programmed chromatography, of from 20-100 wt %.