Cationic polymer dispersions and their method of preparation
AssigneePPG Industries, Inc.
InventorSuryya K. Das
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Abstract
Polymeric products containing cationic salt groups, their method of polymerization and their use in coating applications are disclosed. The dispersions are prepared by dispersing in water an at least partially neutralized amine group-containing polymer followed by adding a polymerizable ethylenically unsaturated monomer composition to the dispersion and subjecting the dispersion to addition polymerization conditions. The resultant dispersions are useful in coating applications.
Claims13
A cationic polymeric product which is prepared by polymerizing under addition polymerization conditions in aqueous medium:
- (A) a polymerizable ethylenically unsaturated monomer composition, in the presence of
- (B) an at least partially phosphoric acid neutralized amine group-containing polymeric dispersant which is formed from polymerizing a mixture of vinyl monomers, a portion of which contains amine functionality,
- (C) a free radical polymerization initiator and a chain transfer agent which are soluble in the polymerizable ethylenically unsaturated monomer composition (A).
A process for preparing a polymeric product, comprising:
- (A) dispersing in aqueous medium in the presence of an at least partially phosphoric acid neutralized amine group-containing polymer dispersant which is formed from polymerizing a mixture of vinyl monomers, a portion of which contains amine functionality, a polymerizable ethylenically unsaturated monomer composition, a free radical initiator and a chain transfer agent which are soluble in the polymerizable ethylenically unsaturated monomer composition, and
- (B) subjecting said dispersion to addition polymerization conditions to form the polymeric product dispersed in aqueous medium.
Dependencies are inferred from the claim text.