Patent ID: 6383651
Filing Date: 2002-05-07
Classification: C08G,C09D,Y10T

Abstract:
A reactive polyester resin, comprising:a) at least one polyoxetane block of repeating units derived from polymerizing at least one oxetane monomer having at least one pendant â€”CH2â€”Oâ€”(CH2)nâ€” Rf group, and b) at least one polyester block having a molecular weight above 100, wherein a hydroxyl group of said polyoxetane block is preacted with a dicarboxylic acid having from about 3 to about 30 carbon atoms or an anhydride thereof to form a half ester linkage and a carboxylic acid terminal group and thereafter reacting said terminal carboxylic acid group with either i) said polyester block or ii) with at least one polyol having from 2 to about 20 carbon atoms and at least one polycarboxylic acid or anhydride thereof having from about 3 to about 30 carbon atoms which form said polyester block, wherein said Rf group, independently on each repeating unit, being a linear or branched alkyl group of 1 to 20 carbon atoms with a minimum of 25 percent of the hydrogen atoms of said alkyl group being replaced by F, or said Rf group, independently, being a perfluorinated polyether having from 4 to 60 carbon atoms, and n being from 1 to 3.