Title:
LIGHT-DIFFUSIVE METHACRYLIC RESIN PLATE
Document Type and Number:
Japanese Patent JP3575098
Kind Code:
B2
Abstract:
PURPOSE: To obtain a light-diffusive methacrylic resin plate having uniformly delustered surface along with small decline in impact resistance even after subjected to highly oriented molding, by dispersing in a methacrylic resin an elastomer with multilayer structure, acrylic cross-linked polymer and light- diffusive particles.
CONSTITUTION: This resin plate is obtained by dispersing in (A) 100 pts.wt. of a methacrylic resin 0.25-1.5dL/g in intrinsic viscosity [η] consisting mainly of ethyl methacrylate (B) 5-50 (pref. 10-40) pts.wt. of an elastomer with multilayer structure, (C) 5-20 (pref. 10-20) pts.wt. of an acrylic cross-linked polymer 10-50μm in weight-average particle diameter, and (D) 0.5-5 pts.wt. of light- diffusive particles 1-10μm in weight-average diameter. This resin plate satisfies the relationship: (WR/WP)2/DP>0.02 (WR is the weight of the component B; DP is the weight-average particle diameter of the component C; WP is the weight of the component C).
Inventors:
Tomohiro Maekawa
Kenji Manabe
Kenji Manabe
Application Number:
JP1243895A
Publication Date:
October 06, 2004
Filing Date:
January 30, 1995
Export Citation:
Assignee:
Sumitomo Chemical Co., Ltd.
International Classes:
C08J5/00; B29C55/00; C08K7/16; C08L33/04; C08L33/12; (IPC1-7): B29C55/00; C08J5/00; C08K7/16; C08L33/12
Domestic Patent References:
| JP6049312A | ||||
| JP63291001A |
Attorney, Agent or Firm:
Takashi Kuboyama
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