US 6,686,051 B1 · Cured polyesters containing fluorinated side chains

Abstract

A polyester polymer includes at least one hydroxyl terminated polyoxetane block containing repeat units derived from polymerizing at least one oxetane monomer having a pendant —CH2—O—(CH2)n—Rf group wherein said Rf group is partially or fully fluorinated. A preferred process for forming said polymer is by reacting a hydroxyl terminated polyoxetane with a polycarboxylic acid under appropriate conditions to form an ester linkage and then adding and reacting that product with polyester forming reactants. The polyester polymer containing at least one polyoxetane block therein when reacted with an amino resin curative can be used as a coating on a substrate wherein the coating has dry erase properties. The coated substrate can be used as prepared or applied to yet other substrates.

Claims43

Dependent claims

A cured polyester composition, comprising:

the reaction product of
(i) at least one polyoxetane chemically bonded via an ester linkage to at least one polyester, said ester linkage being derived from the reaction of a hydroxyl group of said polyoxetane with a carboxylic acid group of a polycarboxylic acid or an anhydride thereof;
said polyoxetane having repeat units derived from oxetane monomers having at least one pendant —CH2—O—(CH2)n—Rf group, with each n being, independently, 1 to about 5;
and each Rf being, independently, unsaturated, or a linear or branched saturated alkyl group of from 1 to about 20 carbon atoms with a minimum of 25% of the hydrogen atoms of said alkyl group being replaced by F, and optionally up to all of the remaining H atoms being replaced by I, Cl, or Br;
and said at least one polyester being derived from an ester condensation reaction of at least one polycarboxylic acid or an anhydride thereof with at least one polyol or at least one cyclic ether, and
(ii) an amino resin.

3 more elements

A laminate, comprising:

a cured dry erase coating on a substrate, said dry erase coating comprising the reaction product of
(i) at least one polyoxetane chemically bonded via an ester linkage to at least one polyester, said ester linkage of said polyoxetane being derived from the reaction of a hydroxyl group of said polyoxetane with a carboxylic acid group of a polycarboxylic acid or an anhydride thereof;
said polyoxetane having repeat units derived from oxetane monomers having at least one pendant —CH2—O—(CH2)n—Rf group, with each n being, independently, 1 to about 5, and each Rf being, independently, a linear or branched alkyl group of from 1 to about 20 carbon atoms with a minimum of 50% of the hydrogen atoms of said alkyl group being replaced by F, and optionally up to all of the remaining H atoms being replaced by I, Cl, or Br;
and
said at least one polyester being derived from a reaction of at least one polycarboxylic acid or an anhydride thereof with at least one polyol or at least one cyclic ether, and
(ii) an amino resin.

3 more elements

A cured polyester composition, comprising:

the reaction product of
(i) at least one polyoxetane chemically bonded to at least one polyester, wherein said polyester is preformed and reacted with said polyoxetane, or wherein said polyester is formed in the presence of said polyoxetane, said polyoxetane having repeat units derived from oxetane monomers having at least one pendant —CH2—O—(CH2)n—Rf group, with each n being, independently, 1 to about 5;
and each Rf being, independently, unsaturated, or a linear or branched saturated alkyl group of from 1 to about 20 carbon atoms with a minimum of 25% of the hydrogen atoms of said alkyl group being replaced by F, and optionally up to all of the remaining H atoms being replaced by I, Cl, or Br;
and said at least one polyester being derived from an ester condensation reaction of at least one polycarboxylic acid or an anhydride thereof with at least one polyol or at least one cyclic ether, and
(ii) an amino resin.

2 more elements

Dependencies are inferred from the claim text.

Cured polyesters containing fluorinated side chains

Life of this patent

Cured polyesters containing fluorinated side chains

Life of this patent

Abstract

Claims43