Patent ID: 9155298
Filing Date: 2015-10-13
Classification: A01N,A61K,B01J,C01B,C08K,C09D

Abstract:
1. A method of producing polymer loaded gel particles for polishing control in anti-fouling paints by incorporation of one or more water-soluble or water-degradable polymers prepared from rosin or one or more rosin derivatives into a hosting gel structure, which method comprises the following steps: a) Prepare a suitable dry gel and subsequently immerse the gel particles in a solution of the one or more relevant monomers necessary to produce said water-soluble or water-degradable polymer prepared from rosin or one or more rosin derivatives, and subsequently carry out polymerization of said water-soluble or water-degradable polymer in situ, or b) Prepare a suitable wet gel (alcogel) and exchange the mother liquid in the wet gel with a saturated solution of said one or more water-soluble or water-degradable polymers prepared from rosin or one or more rosin derivatives; wherein, the method further comprising the step of milling the polymer loaded gel particles obtained by any of the steps a)-b) to finer particles either before addition to a paint formulation or during the further processing of the paint.