Title: Supported high efficiency polyolefin catalyst component and methods of making and using the same

Abstract: A supported high efficiency catalyst component for polyolefin production and methods of making and using the same are disclosed. An enhanced support made from the materials comprising a support base, an inorganic Lewis acid and an electron donor is combined with an active transition metal compound and optionally a second electron donor to form the catalyst component. Additionally, a dehydrating agent may be pre-combined with the support base in the production of the catalyst support. The methods of producing such catalyst supports and catalyst components are performed by milling in the absence of any solvent. Such catalysts produce polymer of such high quality and quantity that polymer extraction and polymer deashing are not necessary.

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Inventors: Kaus, Malcolm J. (Mohegan Lake, NY)
Miro, Nemesio D. (Woodridge, NJ)

Application Number: 06/146341
Filing Date: 1980-05-02
Publication_date: 1982-08-31
Assignee: DART IND INC

Primary Class(es): 502/105 526/139, 526/124.100, 502/122, 526/137, 502/124, 526/
Other Classes: C08F4/60; C08F4/64; C08F4/62; C08F4/68
US Patent Ref:

3582987	June, 1971	Natta et al.	260/93.5
3830787	August, 1974	Susa et al.	260/94.9D
3888835	June, 1975	Ito et al.	260/88.2R	Method for the polymerization of copolymerization of ethylene
3991260	November, 1976	Matsuura et al.	526/125	Process for preparing polyolefins
4013823	March, 1977	Longi et al.	526/166	Process for preparing elastomeric copolymers of ethylene and higher alpha-olefins
4071671	January, 1978	Kashiwa	526/122	Copolymer of glycidyl methacrylate and allyl glycidyl ether
4076924	February, 1978	Toyota	526/125	Process for polymerization or copolymerizing olefins containing at least 3 carbon atoms
4107414	August, 1978	Giannini et al.	526/114	Process for the stereoregular polymerization of alpha olefins
4111835	September, 1978	Foschini et al.	252/429C	Catalysts for polymerizing olefins to spheroidal-form polymers
4143223	March, 1979	Toyota et al.	252/429B	Process for polymerizing alpha-olefins and catalyst therefor
4168361	September, 1979	Oda et al.	526/348.6	Random copolymer of propylene and 1-butene and process for its production
4175171	November, 1979	Ito et al.	526/125	Catalyst for polymerizing ?-olefins
4186107	January, 1980	Wagner	252/429B	Solid catalyst component for olefin polymerization
4211670	July, 1980	Vandenberg	252/429B	Titanium trichloride catalyst component for propylene polymerization
4242479	December, 1980	Yakota et al.	252/429B	Process for producing an improved ethylenic polymer
4243552	January, 1981	Welch et al.	252/429B	Polymerization catalyst and process

Other Refs: Other References: The Condensed Chemical Dictionary, Fifth Edition (1956), pub. by Reinhold Pub. Co., N.Y., N.Y., pp. 203 & 205.

Primary Examiner: Garvin, Patrick
Assistant Examiner:
Attorney: Arnold, White & Durkee

Claims:

What