Patent ID: 9598601
Date: 2017-03-21
CPC Classifications: B05D,B29C,C08J,C08K,C08L,C09D,Y10T

Claim:
1. An aqueous dispersion comprising the melt blending product of: (a) from 50 to 99 percent by weight of one or more polyethylene terephthalate resins, based on the total solid content of the dispersion, wherein the one or more polyethylene terephthalate having an acid number of less than 5 mg KOH/g, a glass transition temperature (Tg) in the range of from 50 to 130° C., a heat distortion temperature according to ASTM D648@264 psi (1.82 MPa) in the range of from 60 to 120° C., and an intrinsic viscosity in the range of from 0.5 to 1.0 Dl/g as measured at 25° C., in a solvent mixture consisting of 60 wt % phenol and 40 wt % tetrachloroethane; (b) from 1 to 50 percent by weight of one or more stabilizing agents comprising at least one second polyester, based on the total solid content of the dispersion, wherein said second polyester has a carboxylic acid group and an acid number in the range of from 20 to 80 mg KOH/g, based on the solid content of the second polyester; (c) optionally one or more neutralizing agents; and (d) from 15 to 90 percent by weight of water, based on the total weight of the dispersion; wherein said dispersion has a solid content of 10 to 85 percent, based on the total weight of the dispersion, and wherein the volume average particle size of the dispersion is less than 5 microns.