Title:
透明複層樹脂積層体
Document Type and Number:
Japanese Patent JP4211136
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a transparent composite resin laminate obtained by laminating a base layer and surface layer by a coextrusion molding method, having proper thermoformability, keeping combustion resistance and impact resistance sufficiently, excellent in weatherability, having good lamination properties and high see-through and stable in appearance quality as a whole. SOLUTION: A base layer comprises a resin compsn. containing a polyester resin obtained by the polycondensation of a polycarbonate resin and/or a dicarboxylic acid type polycondensation component and a glycol type condensation component and a surface layer comprises a resin compsn. containing 3-25 pts.wt. of an ultraviolet absorber and 0.05-1 pts.wt. of one or more kind of a lubricant selected from ester type, fatty acid type and alcohol type lubricants per 100 pts.wt. of a polycarbonate resin with a mean mol.wt. of 15,000-23,000. The base layer and the surface layer are laminated and integrated by a coextrusion molding method.
Inventors:
Kazuaki Maruyama
Application Number:
JP13139799A
Publication Date:
January 21, 2009
Filing Date:
May 12, 1999
Export Citation:
Assignee:
Sumitomo Bakelite Co., Ltd.
International Classes:
B32B27/36; B29C47/06; C08K5/00; C08L69/00
Domestic Patent References:
| JP9057881A | ||||
| JP10298312A |
Attorney, Agent or Firm:
Hisayoshi Shimizu
Yoshihito Shimizu
Ken Takada
Kurose Yasuhisa
Yoshihito Shimizu
Ken Takada
Kurose Yasuhisa