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US 7,119,058 B2Granted
Graft polymers comprising side chains containing cyclic N-vinylamides
AssigneeBASF SE
InventorsPia Baum, Christine Mueller, Anke Oswald, Birgit Potthoff-Karl
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Abstract
Graft polymers containing (A) a polymeric grafting base devoid of monoethylenically unsaturated units, and (B) polymeric side chains formed by polymerization of a cyclic N-vinylamide of the general formula I where R is C1–C5-alkyl and R1 is hydrogen or C1–C4-alkyl, wherein said side chains (B) account for ≧60% by weight of the total polymer.
Claims15
A graft polymer consisting of:
- (A) a polymeric grafting base devoid of monoethylenically unsaturated units, and
- (B) polymeric side chains formed by polymerization of a cyclic N-vinylamide of formula I
- where R is C1–C5-alkyl and R1 is hydrogen or C1–C4-alkyl,
- wherein said side chains (B) account for ≧60% by weight of the total polymer.
1 more element
Dependencies are inferred from the claim text.