Styrene → Alpha-Methylstyrene

Participants

Reaction Steps

An aqueous colloidal dispersion of antimony oxide sold by Nyacol, Inc., Ashland, Mass. under the trade name Nyacol A-1530, containing 30 weight percent antimony oxide was added to an aqueous anionic latex containing 40 weight percent of polybutadiene grafted with 20 parts of an interpolymer containing 70 percent styrene and 30 percent acrylonitrile per 100 parts of polybutadiene and was stirred to provide a uniform blend. The procedure of Example 1 was then carried out to obtain a blend of rubber-occluded antimony oxide in an interpolymer of α-methylstyrene and acrylonitrile. The ratio of styrenic interpolymer to "ungrafted" polybutadiene to colloidal antimony was 22:8:1.

Provenance & Evidence