Method of preparing resin

Details Method of preparing resin Method of preparing resin

C - Chemistry, Metallurgy

08

F

402/296, 402/403

C08F 2/22 (2006.01) C08F 2/16 (2006.01)

Patent

CA 1138596

Abstract Method of preparing a resin by free radical poly- merizing a mixture of hard segment hydrophobic enhancing monomer, optional soft segment hydrophobic enhancing monomer and hydrophilic enhancing organic acid where said method is characterized by the steps of (1) charging a reactor with water and a portion of the initiator and (2) slowly substantillay simultaneously adding thereto said monomers and the remainder of the initiator. The important feature of the invention relies upon a relative excess of the initistor in combination with the elevated temperature in order to enable the polymerization substan- tially free of additional emulsifier. The sdvantage of the invention is the preparation of a particulate resin without the usual attendant, residual coating of emulsifier thereon.

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