Compositions – Preservative agents – Anti-oxidants or chemical change inhibitants
Patent
1981-11-17
1983-08-30
Garvin, Patrick
Compositions
Preservative agents
Anti-oxidants or chemical change inhibitants
C08F 464
Patent
active
044015895
ABSTRACT:
Improved process for producing olefin polymer or copolymer characterized by using (I) a solid catalyst component (A) which is the product of reaction of (a) a magnesium compound in the liquid state having no reducing ability with (b) a titanium compound in the liquid state in the presence of an electron donor having no active hydrogen, said magnesium compound (a) being a liquid magnesium compound or a solution of a magnesium compound or being obtained by contacting the magnesium compound with at least one electron donor selected from the group consisting of alcohols, organic carboxylic acids, aldehydes, amines and mixtures thereof, or the product of reaction of the magnesium compound (a) with the titanium compound (b) in the absence of the electron donor having no active hydrogen atom followed by treatment with the electron donor having no active hydrogen atom, and (II) the mole ratio of the compound (a) to the compound (b), calculated as metal atoms, is at least about 2.
REFERENCES:
patent: 3989881 (1976-11-01), Yamaguchi et al.
patent: 4115319 (1978-09-01), Scata et al.
patent: 4124532 (1978-11-01), Giannini et al.
patent: 4174299 (1979-11-01), Giannini et al.
Kashiwa Norio
Kioka Mamoru
Kitani Hiroaki
Garvin Patrick
Mitsui Petrochemical Industries Ltd.
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