Paul Hugh Findlay,Brodyck James Lachlan Royles,Neil John Simpson,Sharon Todd,Steven Paul Rannard,Jonathan Victor Mark Weaver,Roselyne Marie Andree Baudry
申请号：
US13148471
公开号：
US20120108678A1
申请日:
2010.02.09
申请国别(地区):
US
年份:
2012
代理人:
摘要：
The present invention relates to a branched copolymer obtainable by an addition polymerisation process and uses and compositions thereof comprising:i) a residue of at least one monofunctional monomer comprising one polymerisable double bond per molecule and a molecular weight of less than 1000 Daltonsii) a residue of at least one multifunctional monomer comprising at least two polymerisable double bonds per molecule and a molecular weight of less than 1000 Daltons and wherein the end termini of the copolymer chains comprise one or more of a residue of a chain transfer agent an initiator or a terminal group derived from a termination reactionwherein the molar ratio of the monofunctional monomer to multifunctional monomer is between 50:1 to 2.5:1 respectively andwherein the hydrophilic component is comprised of at least 1 mole % of a combination of a monofunctional monomer, and a multifunctional monomer and/or a chain transfer agent when compared to the total content of monofunctional monomer which is/are comprised of hydrophilic component each with a solubility of 0.18 w/w % in water at 20° C. andwherein the residue of the at least one monofunctional monomer with a molecular weight of less than 1000 daltons is selected from the group comprising:vinyl acids, vinyl acid ester, vinyl aryl compounds, vinyl acid anhydrides, vinyl amides, vinyl ethers, vinyl amines, vinyl aryl amines, vinyl nitriles, vinyl ketones, and derivatives thereofhydroxyl-containing monomers and monomers which can be post-reacted to form hydroxyl groupsacid-containing or acid functional monomerszwitterionic monomersquaternised amino monomers, oligomeric monomers and corresponding allyl monomers of the aforesaid vinyl monomers.
