Method of producing polymer compositions based on chlorinated polyethylene
Patent 3970718 Issued on July 20, 1976. Estimated Expiration Date: 
July 20, 1993. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
July 20, 1993. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3496251 3558745 3887648 InventorsAssigneeApplicationNo. 544706 filed on 01/28/1975US Classes:525/76, Mixture contains solid polymer derived from chlorine-containing reactant other than from vinyl(idene) chloride525/252, Specified material is a carbohydrate or is a solid synthetic polymer not intended to be in the final product525/253, Material contains a free alcohol group or is alcoholate thereof525/263, Specified material contains a peroxy group, i.e., -O-O-525/265, Aromatic or cycloaliphatic peroxy compound525/273, Specified material contains a compound containing a peroxy group, i.e., -O O-525/86, Mixture contains solid polymer derived from nonaromatic reactant containing plural ethylenically unsaturated groups525/903INTERPENETRATING NETWORKExaminersPrimary: Turer, Richard B.Attorney, Agent or FirmAbstractIn a method for producing a polymer composition by contactingA. a polymer component selected from the group consisting of chlorinated polyethylene and a mixture consisting of a major amount of chlorinated polyethylene and a minor amount of copolymer selected from an ethylene-propylene copolymer rubber an, ethylene-propylene-nonconjugated diene terpolymer rubber and an ethylene-vinyl acetate copolymer rubber, withB. a monomer mixture comprisingB1. at least one of styrene, alpha-methyl styrene, tertiary butyl styrene and chlorostyrene, andB2. at least one of acrylonitrile and methacrylonitrileUnder polymerization conditions to form an interpolymer of the components (A) and (B), the improvement which comprises suspending polymer component (A) and monomer component (B) in the form of fine particles in an aqueous medium. | |
