Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1988-07-29
1991-12-03
Bleutge, John C.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525412, C08L 5108, C08L 3308
Patent
active
050701410
ABSTRACT:
Polyacrylate graft-polyols are found to be homogeneous liquids useful as dispersants in vinyl polymer polyols. The novel polyacrylate graft-polyols are made by polymerizing at least one acrylate monomer in a polyol where the resultant polyacrylate is soluble in the polyol used. The polyol may be a polyoxyalkylene polyether polyol. No copolymer or unsaturated polyol is required to make vinyl polymer polyols having high styrene/acrylonitrile ratios, good stability and improved viscosity properties when these polyacrylate graft-polyol dispersants are employed. The vinyl polymer polyols are in turn useful in reactions with polyisocyanates in the presence of suitable catalysts to make polyurethane products.
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Gastinger Robert G.
Hayes John E.
ARCO Chemical Technology, Inc.
Bleutge John C.
Dean Jr. R.
Kozak Dennis M.
Mossman David L.
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