Grafted Pigment Dispersing Polymeric Additive And Paint Employing The Same With Improved Hiding

Patent No. EP2935377 (titled "Grafted Pigment Dispersing Polymeric Additive And Paint Employing The Same With Improved Hiding") was filed by Benjamin Moore& on Oct 4, 2013. The application was issued on Jul 30, 2025.

Patent Summary

A grafted polymeric additive for dispersing pigments in paints, comprising a polymeric pigment dispersant grafted to a polymeric carrier. The dispersant has a molecular weight of 1,000-20,000 Daltons and an acid number of 150-250, and is soluble in alkali solution. The carrier has a minimum film-forming temperature (MFFT) of 10-130°C. The additive is prepared by emulsion polymerization of monomers in the presence of the dispersant, and is used to reduce the amount of titanium dioxide pigment required in paints while maintaining opacity.

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BASFFeb 15, 2019BASF ASSOCIATION

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EP2935377

BENJAMIN MOORE&
Application Number
EP13780008A
Filing Date
Oct 4, 2013
Status
Patent Maintained As Amended
Jun 27, 2025
Publication Date
Jul 30, 2025