Compositions – Preservative agents – Anti-oxidants or chemical change inhibitants
Patent
1975-02-04
1977-01-25
Garvin, Patrick P.
Compositions
Preservative agents
Anti-oxidants or chemical change inhibitants
252437, 252441, 252443, 526190, C08F 422
Patent
active
040050475
ABSTRACT:
New catalytic composition of improved activity in the process of polymerizing cycloolefins, comprising a carbonyl compound or a carbonyl-metal-carbenic compound of molybdenum or tungsten and titanium tetrachloride, said composition being preferably subjected to an irradiation with rays of a wave length from 180 to 700 nanometers during or before use.
REFERENCES:
patent: 3083246 (1963-03-01), Holzman et al.
patent: 3173902 (1965-03-01), Carrick et al.
patent: 3622521 (1971-11-01), Hogan et al.
patent: 3878182 (1975-04-01), Kormer et al.
Chauvin Yves
Commereuc Dominique
Cruypelinck Daniel
Soufflet Jean-Pierre
Garvin Patrick P.
Institut Francais du Pe'trole
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