Polymer polyol dispersants from polymers containing anhydride gr

Details Polymer polyol dispersants from polymers containing anhydride gr Polymer polyol dispersants from polymers containing anhydride gr

1993-05-24

1994-10-25

Kight, III, John

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

524284, 524306, 524314, 525 63, 525 74, 525 79, 525 82, 526271, 526272, C08J 714, C08K 515

Patent

active

053589840

ABSTRACT:
Dispersants that are the reaction product of polyoxyalkylene polyether polyols with polymers containing anhydride groups are discussed. These dispersants may be used in the production of polymer polyols having high styrene contents and high solids contents. The polymers containing the anhydride groups may be preformed polymers which are then reacted with the polyol, or may be formed in the polyol directly prior to esterification with the polyol to form the dispersants. Maleic anhydride and methacrylic arthydride and derivatives thereof are examples of monomers suitable for the dispersants. Polymer polyols made using these dispersants may be reacted with polyisocyanates to produce polyurethanes.

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WPI Abstract 89-049220/07 to Japanese Application JP 1004227.
WPI Abstract 89-049221/07 to Japanese Application JP 1004228.

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