Patent ID: 9493598
Filing Date: 2016-11-15
CPC Classification: C08F,C09K

Claim Text:
1. A polymer polymerized from at least one reactive vinyl monomer having acid functionality or a salt thereof wherein said reactive vinyl monomer and functionality is selected from the group consisting of: vinyl sulfonic acids, acrylamido hydrocarbyl sulfonic acids, vinyl phosphonic adds, acrylamido hydrocarbyl phosphonic acids, salts thereof, and blends thereof, and at least one reactive vinyl monomer having amide functionality wherein said vinyl monomer having amide functionality is vinyl caprolactam, wherein the polymer has a molecular weight from about 500 Da to about 15,000 Da., said polymer comprising at least one solvent adduct covalently bonded to the polymer in intermediate positions present in an amount from about 0.1% to about 20% by weight of the polymer, wherein said solvent adduct is obtained from a glycol ether, 2 butoxyethanol, or blends thereof, and said polymer is synthesized in said solvent.