Polymerization of alpha-methylstyrene
AssigneeSunoco, Inc. (R&M)
InventorsRonald A. Andrekanic, Jeffrey S. Salek, Steven E. Mulhall, Yuriy V. Bubnov
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Abstract
A process for producing polymers of α-methylstyrene uses tin IV chloride as a polymerization initiator. Use of tin IV chloride as an initiator allows polymerization to proceed without purification of the monomer prior to processing. Polymerization can be carried out at ambient temperatures with mild exotherms and good polymer yields. The process uses solvents commonly found in a plant producing α-methylstyrene.
Claims9
A process for producing a homopolymer of α-methylstyrene, the process comprising:
- providing a reaction solution consisting essentially of α-methylstyrene monomer and a solvent at a temperature above about 0° C., and adding to said solution an initiator comprising tin IV chloride.
A process for producing a homopolymer of α-methylstyrene, the process comprising:
- providing a reaction solution consisting essentially of α-methylstyrene monomer and a solvent at a temperature above about 10° C., and adding to said solution a initiator comprising tin IV chloride, said initiator being added in a quantity from about 0.10% to about 0.40% by weight relative to α-methylstyrene.
Dependencies are inferred from the claim text.