| abstract |
1425420 Polyalkoxyhydantoins BAYER AG 14 Sept 1973 [15 Sept 1972] 43195/73 Heading C2C [Also in Division C3] A polyether hydantoin of the formula is prepared by heating 4,4<SP>1</SP>-bis-[5<SP>11</SP>,5<SP>11</SP>-dimethyl-hydantoinyl - (3<SP>11</SP>)] - diphenylmethane with glycol carbonate in presence of solid KOH. The compound is used as an antistatic agent for polyacrylonitrile. A polyether hydantoin, is made by heating 3,5,5-trimethylhydantoin, with ethylene oxide and sodium methylate and heating the resulting polyether with stearyl isocyanate. Reference has been directed by the Comptroller to Specification, 1,290,729. |