Neil John Simpson;Brodyck James Lachlan Royles;Roselyne Marie Andree Baudry;Steven Paul Rannard;Sharon Todd;Jonathan Victor Mark Weaver;Paul Hugh Findlay
发明人:
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：
US13148472
公开号：
US20120108679A1
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 comprising a hydrophilic component obtainable by an addition polymerisation process and compositions and uses thereof said copolymer 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 Daltons；ii) 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 reaction；wherein； 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 one or more residue of a multifunctional monomer and/or one or more residue of a chain transfer agent comprised of a hydrophilic monomer each with a solubility of 0.18 w/w % in water； 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 esters, vinyl aryl compounds, vinyl acid anhydrides, vinyl amides, vinyl ethers, vinyl amines, vinyl aryl amines, vinyl nitriles, vinyl ketones, and derivatives thereof；hydroxyl-containing monomers and monomers which can be post-reacted to form hydroxyl groups；acid-containing or acid functional monomers；zwitterionic monomers；quaternised amino monomers, oligomeric monomers； and corresponding allyl monomers of the aforesaid vinyl monomers.
