REDISPERSIBLE ACRYLIC RESIN POWDER PREPARED FROM EMULSION CONTAINING PROTECTIVE CLLOID AND PRODUCTION OF THE POWDER,申请号JP19900314117-传众专利搜索

REDISPERSIBLE ACRYLIC RESIN POWDER PREPARED FROM EMULSION CONTAINING PROTECTIVE CLLOID AND PRODUCTION OF THE POWDER

申请公布号：JPH04185607(A)

申请号：JP19900314117

申请日期：1990.11.21

申请公布日期：1992.07.02

申请人：

HOECHST GOSEI KK

发明人：OSHIMA NORIYOSHI;NONAKA MASANORI

分类号：C08J3/16;C04B24/26;C08F2/22;C08F2/24;C08F2/38;C08F2/44;C08F20/10;C08F20/12;C08F220/12;C08L33/00

主分类号：C08J3/16

摘要：PURPOSE:To obtain the title powder excellent in redispersibility, film properties, etc., by emulsion-(co)polymerizing an acrylic monomer in the presence of a water-sol. protective colloid and a specified amt. of a chain transfer agent. CONSTITUTION:An acrylic monomer (e.g. methyl methacrylate) is emulsion- polymerized, if necessary with 30wt.% or lower copolymerizable monomer (e.g. styrene), in the presence of a water-sol. protective colloid (e.g. polyvinyl alcohol) and 0.1-50wt.% (based on the acrylic monomer) chain transfer agent (e.g. trichloroethylene) to give an acrylic resin emulsion, which is spray-dried, thus giving the title powder. The powder is useful for an adhesive, a coating binder, a cement additive, etc.