C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
402/397, 402/539
C08F 2/24 (2006.01) C08F 14/04 (2006.01) C08F 14/06 (2006.01)
Patent
CA 1134998
ABSTRACT OF THE DISCLOSURE The present invention relates to a process for preparing vinyl dispersion resins by conducting the poly- merization reaction of the vinyl monomer or monomers in an aqueous alkaline medium, using an oil-soluble polymerization initiator, at temperatures preferably below about 48°C, in the presence of an emulsifier system comprising the ammonium salt of a high fatty acid containing from 8 to 20 carbon atoms, at least one long straight chain alcohol containing from 14 to 24 carbon atoms, and a sulfate or sulfonate type soap of C12 to C20 alkyl or aryl hydrocarbons, wherein the ratio of alcohol to emulsifier is equal to or greater than 1.0 and wherein the reaction ingredients are thoroughly mixed, and preferably homogenized, prior to polymerization. The process produces paste resins having improved plastisol foam properties, especially when sodium metabisulfite is added to the polymer recipe or the polymer slurry prior to spray drying. Further, polymer buildup in the reactor is substantially reduced and multiple polymerizations can be run in the reactor without opening the same.
327968
Bush Charles N.
Mikofalvy Bela K.
Goodrich (b.,f.) Company (the)
Sherman
LandOfFree
Process for producing homopolymers or copolymers of vinyl or... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for producing homopolymers or copolymers of vinyl or..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for producing homopolymers or copolymers of vinyl or... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-415468