Aqueous composition of amphiphilic copolymers in emulsion, and method for producing a copolymer emulsion, anfifu00edlico

摘要

Copolymer in aqueous emulsion, anfifu00edlico, and method for producing a copolymer emulsion, anfifu00edlico this invention provides compositions of aqueous emulsion copolymers, amphiphilic,Comprising one or more copolymers in aqueous phase, a radical of one or more hydrophilic chain transfer agents.And a radical one or more hydrophobic chain transfer agents, and methods for producing these copolymers in water or in an aqueous liquid.Copolimerizando a monomer component with 20 to 80% by weight, based on the weight of the component monomer.Of a monomer containing a hydrophilic group and the remainder of an unsaturated monomer etilenicamente copolimerizu00e1vel or pre polymer.In the presence of a component transfer agent mixture comprising a chain transfer agent to the hydrophilic chain, such as acid, 3 - mercaptopropiu00f4nico,And a hydrophobic chain transfer agent, such as N - dodecyl mercaptan.The aqueous emulsion copolymers, amphiphilic, of this invention are stable in storage and present an excellent control of viscosity even in compositions with high solid content, e.g.Of 50 to 80% by weight of the composition. The composition with high solid content can be diluted at the place of use, thus reducing the cost of transport.