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:
Dec. 22, 1992
Filed:
Apr. 17, 1990
Jun Saito, Chibaken, JP;
Akihiko Sanpei, Chibaken, JP;
Chisso Corporation, Osaka, JP;
Abstract
A catalyst component for producing highly crystalline olefin polymers without causing any operational problems and stably and affording therefrom a film having very few occurrence of voids and a superior transparency, and a process for producing the catalyst component, which catalyst component comprises a linear olefin-non-olefin block copolymer having at least one linear olefin block copolymer and at leaast one non-linear olefin polymer block and (a) a titanium trichloride composition or (b) titanium, magnesium, a halogen and an electron donor as components for a carrier, the content of the linear olefin polymer block being 0.1 to 49.5% by weight, the content of the non-linear olefin polymer block being 0.01 to 49.5% by weight, the ratio by weight of the linear olefin polymer block to the non-linear olefin polymer block being 2/98 to 98/2 and in the case of (a), the content of the titanium trichloride composition being 99.89 to 1.0% by weight.