Curable silsesquioxane polymers, compositions, articles, and methods
Assignee3M Innovative Properties Company
InventorJitendra S. Rathore
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Abstract
A curable silsesquioxane polymer, a composition including such polymer, an article having a layer disposed thereon that includes the curable polymer and/or the cured polymer, and a method of forming a cured coating, wherein the curable silsesquioxane polymer includes a three-dimensional branched network having the formula: wherein: the oxygen atom at the * is bonded to another Si atom within the three-dimensional branched network; R is an organic group comprising an ethylenically unsaturated group; n is an integer of greater than 3; and the —OH groups are present in an amount of at least 15 wt-% of the polymer.
Claims15
A curable silsesquioxane polymer comprising a three-dimensional branched network having the formula:
- wherein:
- the oxygen atom at the * is bonded to another Si atom within the three-dimensional branched network;
- R is an organic group comprising an ethylenically unsaturated group;
- n is an integer of greater than 3;
- and
- the —OH groups are present in an amount of at least 15 wt-% of the polymer.
A curable silsesquioxane polymer comprising a three-dimensional branched network which is a condensation reaction product of a compound having the formula Z—Y—Si(R1)3, wherein:
- Y is a bond, an alkylene group, an arylene group, or a combination thereof;
- Z is an ethylenically unsaturated group selected from a vinyl group, a vinylether group, a (meth)acryloyloxy group, and a (meth)acryloylamino group;
- and
- each R1 group is independently a hydrolyzable group;
- wherein the polymer includes —OH groups in an amount of at least 15 wt-% of the polymer.
Dependencies are inferred from the claim text.