Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1975-03-13
1976-05-25
Holler, Alan
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
526 73, 526 86, 526 95, 526237, 526291, 526292, 526297, 526303, 526308, 526335, 526338, 526227, 526235, 526206, C08F 202, C08F 414, C08F21000, C08F21200
Patent
active
039592251
ABSTRACT:
A thermally-staged process for preparing polymers, particularly alternating interpolymers of one or more polar monomers and one or more mono or polyolefins which comprises: (1) reacting, in a first stage, a polar monomer-Lewis Acid complex with an olefin in the presence of an active oxygen compound at a temperature of about -100.degree.C to about 0.degree.C for a time sufficient enough to allow for conversion of up to 50% of the polar monomer to interpolymer; (2) raising the temperature of the reaction mixture, in a second stage, to about 0.degree. to about 100.degree.C; (3) maintaining the reaction mixture at about 0.degree. to about 100.degree.C for a time sufficient to optimize the yield of interpolymer; and (4) recovering the interpolymer from the reaction mixture.
Polymers prepared by the temperature-staged process of this invention possess substantially higher molecular weights than the same polymers made by prior art processes. The polymers are useful as vulcanizable elastomers, thermoplastics and lubricating oil additives.
REFERENCES:
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patent: 3278503 (1966-10-01), Serniuk et al.
patent: 3647753 (1972-03-01), Nakaguchi et al.
patent: 3700648 (1972-10-01), Hirooka et al.
patent: 3790539 (1974-02-01), Onishi et al.
patent: 3793262 (1974-02-01), Logothetis
Exxon Research and Engineering Company
Holler Alan
Naylor Henry E.
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