Rubber polymer latex with multi-layer core-shell structure, preparation method thereof and acrylonitrile-butadiene-styrene graft copolymer comprising the same

摘要

The disclosed is a rubber polymer latex with a multi-layer core-shell structure that includes a diene-based rubber core of a conjugated diene-based monomer; a bridge shell formed on the rubber core of a vinyl-based monomer; and an outermost shell formed on the bridge shell of an acryl-based monomer.

主权项

1. Rubber polymer latex with a multi-layer core-shell structure, comprising based on 100 parts by weight of total monomers composing the rubber polymer latex with a multi-layer core-shell structure:
a diene-based rubber core comprising from 75 to 85 parts by weight of a conjugated diene-based monomer; a bridge shell formed on the rubber core and comprising from 5 to 10 parts by weight of a vinyl-based monomer; and an outermost shell formed on the bridge shell and comprising from 10 to 15 parts by weight of an acryl-based monomer, wherein the vinyl-based monomer is a combination of an aromatic vinyl monomer and a vinyl cyan monomer, and a weight ration of the aromatic vinyl monomer and the vinyl cyan monomer is from 9:1 to 7:3, wherein an average particle diameter of the diene-based rubber core is in a range from 2,000 Å to 3,000 Å, and wherein a weight ratio of the core, the bridge shell and the outermost shell is 15-17:1-2:2-3.