Patent ID: 9708503
Date: 2017-07-18
CPC Classifications: B24D,C08G,C08J,C08L,C09D

Claim:
1. An aqueous binder comprising a mixture of: a water dispersible urea-formaldehyde resin, and a water dispersible polyester resin, wherein said mixture comprises about 10 to about 25 wt % said water dispersible polyester resin based upon the dry weight of the urea-formaldehyde resin, wherein the binder has an absence of phosphate groups, wherein said water dispersible polyester resin has a weight average molecular weight of 10,000 to 500,000, wherein the aqueous binder contains substantially no cross-linking agents, and wherein the urea-formaldehyde resin is not a cross-linking resin for the water dispersible polyester resin.