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:
Jun. 11, 2002
Filed:
Nov. 25, 1998
Satoru Moriya, Yamaguchi, JP;
Shinya Matsunaga, Yamaguchi, JP;
Shinichi Kojoh, Yamaguchi, JP;
Kenji Sugimura, Yamaguchi, JP;
Masahiro Kishine, Yamaguchi, JP;
Norio Kaneshige, Yamaguchi, JP;
Mamoru Kioka, Yamaguchi, JP;
Teruhisa Kojima, Yamaguchi, JP;
Mitsui Chemicals INC, Tokyo, JP;
Abstract
Crystalline polypropylene contains components insoluble in 64° C. decane satisfying the characteristics involving intrinsic viscosity; Mz/Mn; pentadvisotacticity, D value and Mw/Mn, are excellent in hardness and rigidity, high in melt tension, and excellent in molding properties. Processes for preparing such crystalline polypropylenes, and polypropylene compositions and thermoformed products that contain such crystalline polypropylenes are also described. The number-average molecular weight Mn of the components insoluble in 64° C. decane is preferably 25000 or more.