Title:
【発明の名称】耐熱遮光性ボトル
Document Type and Number:
Japanese Patent JP3159387
Kind Code:
B2
Abstract:
PURPOSE:To contrive to improve the heat resistance and sunproofness by a method wherein the mouth part of a blown bottle is whitened by heat treatment and, further, light-reflecting pigment and light-absorbing pigment are simultaneously added to polyester, which forms the mouth part and the cylindrical part of the bottle. CONSTITUTION:The mouth part 1 and the support ring 5 of a bottle concerned has five-layered structure consisting of three heat-resistant resin layers 9 and two polyester layers 7. Its cylindrical part 3 and its bottom part 4 consist of one pigment-containing polyester layer 7. Further, the mouth part 1 and the support ring 5 are crystallized by heat treatment. In the polyester layer 7, 2.5-6.0 pts.wt. of light-reflecting pigment is added to 100 pts.wt. of polyester. As the light-reflecting pigment, especially rutile titanium white is preferably used. Furthermore, 0.005-0.015 pts.wt. of light-absorbing pigment is added to 100 pts.wt. of the polyester. As the light-absorbing pigment, especially black pigment such as carbon black is preferably used.
Inventors:
Yuji Kamekai
Application Number:
JP29948490A
Publication Date:
April 23, 2001
Filing Date:
November 05, 1990
Export Citation:
Assignee:
Dai Nippon Printing Co.,Ltd.
International Classes:
B29C49/00; B29C49/08; B32B1/02; B29C49/64; B32B7/02; B32B27/20; B65D1/00; B29C49/06; B29C49/22; B29K67/00; B29L22/00; (IPC1-7): B29C49/00; B65D1/09
Domestic Patent References:
| JP63307054A | ||||
| JP5562937A | ||||
| JP5616546A |
Attorney, Agent or Firm:
Takaishi Tachibana