Title:
【発明の名称】多層構造重合体および樹脂組成物
Document Type and Number:
Japanese Patent JP2796595
Kind Code:
B2
Abstract:
PURPOSE:To obtain a multilayered structure polymer of excellent weathering resistance by forming a multilayered structure polymer having specified properties and comprising alkyl (meth)acrylate units, unsaturated nitrile units and aromatic vinyl units. CONSTITUTION:A multilayered polymer comprising 2-30wt.% alkyl methacrylate units, 50-80wt.% alkyl acrylate units, 5-20wt.% unsaturated nitrile units and 5-40wt.% aromatic vinyl units, wherein said polymer is constituted so that it may consist of annular inner and outer layers, the mean diameter of the inner part of the inside ring may be 2000-6500Angstrom , the average thickness of the outer layer circulating the inner part may be 200-500Angstrom , a plurality of very small particles may be dispersed in the entire inner part, the degree of swelling of the acetone-insoluble part in methyl ethyl ketone may be 1.5-10, and the tensile modulus may be 1000-10000kg/cm<2>.
Inventors:
MAEDA KATSUAKI
NISHIHARA HAJIME
SEKI JUNJI
NISHIHARA HAJIME
SEKI JUNJI
Application Number:
JP32043589A
Publication Date:
September 10, 1998
Filing Date:
December 12, 1989
Export Citation:
Assignee:
ASAHI KASEI KOGYO KK
International Classes:
C08L33/10; C08F2/22; C08F2/24; C08F2/44; C08F285/00; C08L25/12; C08L25/14; C08L33/04; C08L35/06; C08L51/00; C08L51/06; C08L69/00; C08L93/00; C08L101/00; (IPC1-7): C08F285/00; C08F2/44; C08L25/12; C08L25/14; C08L33/10; C08L35/06; C08L51/00; C08L69/00; C08L101/00
Attorney, Agent or Firm:
Takeshi Shimizu (1 person outside)