Aqueous dispersible polymer composition
AssigneeNipsea Technologies Pte Ltd
InventorsShaofeng Wang, Jingqiu Li, Xiaoqun Ye, G. Sundararajan, Zeling Dou, Swee How Seow
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Abstract
The present disclosure relates to an aqueous dispersible polymer composition comprising: (a) at least one of: (i) a dendritic polymer in admixture with a hydrophilic functionalizing agent; and (ii) a hydrophilic functionalized dendrimer; and (b) a non-dendritic polymer capable of forming bonds with said dendritic polymer to thereby form a dendrimer-non-dendrimer (DND) polymer hybrid that is dispersible in the aqueous phase, methods of forming the same and uses thereof.
Claims24
An aqueous dispersible polymer composition comprising:
- (a) at least one of:
- (i) a dendritic polymer in admixture with a hydrophilic functionalizing agent;
- and
- (ii) a hydrophilic functionalized dendrimer;
- and
- (b) a non-dendritic polymer capable of forming bonds with said dendritic polymer to thereby form a dendrimer-non-dendrimer (DND) polymer hybrid that is dispersible in the aqueous phase, and said non-dendritic polymer being selected to enable said DND polymer hybrid to exhibit superior film forming properties in said aqueous phase relative to a functionalized dendritic polymer.
The aqueous dispersible polymer composition of any preceding claim, wherein the dendritic polymer is a hydroxyl terminated polyester comprising peripheral hydroxyl functional groups.
The aqueous dispersible polymer composition of any preceding claim, wherein said non-dendritic polymer is present in an amount of at least 20% by weight based on total weight of said DND polymer hybrid.
The aqueous dispersible polymer composition of any preceding claim, wherein the peripheral hydroxyl groups of said dendritic polymer are at least partially substituted by said hydrophilic groups from said functionalizing agent.
The aqueous dispersible polymer composition of any preceding claim, wherein said composition further comprises one or more cross-linkers.
The aqueous dispersible polymer composition of any preceding claim, further comprising nanoparticles dispersed through the bulk of said DND polymer hybrid.
A process for preparing an aqueous dispersible polymer composition, said process comprising the steps of:
- (a) providing at least one of:
- (i) a dendritic polymer;
- and
- (ii) a hydrophilic functionalized dendrimer;
- and either one of steps:
- (b1) mixing said (i) dendritic polymer with a non-dendritic polymer in the presence of a cross-linker, followed by reaction with a hydrophilic functionalizing agent;
- or
- (b2) mixing said (ii) hydrophilic functionalized dendrimer with a non-dendritic polymer,
- to thereby form a dendrimer-non-dendrimer (DND) polymer hybrid that is dispersible in an aqueous medium, and said non-dendritic polymer being selected to enable said DND polymer hybrid to exhibit superior film forming properties in said aqueous medium relative to a functionalized dendritic polymer.
Dependencies are inferred from the claim text.