Patent ID: 9532940
Date: 2017-01-03
CPC Classifications: A61K,A61Q,C08F,C08J,C08K,C09D,Y10T

Claim:
1. Porous resin particles of a polymer of a monomer mixture, said monomer mixture comprising: a mono(meth)acrylate-based monomer in an amount of 3 wt % to 40 wt % containing: an ethylenic unsaturated group only in a (meth)acrylic acid residue, and a hydroxyl group and at least either an ether group or an ester group in an alcohol residue; another monofunctional vinyl-based monomer in an amount of 10 wt % to 69 wt % containing a single ethylenic unsaturated group; and a polyfunctional vinyl-based monomer in an amount of 30 wt % to 70 wt % containing two or more ethylenic unsaturated groups, wherein the porous resin particles have a water absorption value of 140 ml to 400 ml per 100 g of said particles, and an oil absorption value of 100 ml to 400 ml per 100 g of said particles.