Waterborne polymers with pendant crosslinkable groups

Details Waterborne polymers with pendant crosslinkable groups Waterborne polymers with pendant crosslinkable groups

1996-03-15

1998-07-21

Merriam, Andrew E.C.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524533, 525153, 525154, 525293, 525300, 525303, 5253299, 526312, 526316, C08L 3314

Patent

active

057836264

ABSTRACT:
Provided are allyl-functional polymers having pendant enamine moieties and preferably also possessing pendant methacrylate groups. The presence of such groups in the polymer allows for a free-radical crosslinking reaction to take place during film formation and provides coatings having superior solvent resistance. Amino-containing waterborne particles can be prepared by reacting propylene imine with carboxylic acid-containing latexes. The amino-functionalized latexes are subsequently reacted at room temperature with for example acetoacetoxyethyl methacrylate. During ambient and thermal cure studies, clear films exhibited significant increases in solvent resistance, gel fraction, and crosslink density.

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