Title:
【発明の名称】耐熱遮光性多層ボトル
Document Type and Number:
Japanese Patent JP2958081
Kind Code:
B2
Abstract:
PURPOSE:To obtain a bottle having heat resistance and excellent in light shielding ability by a method wherein the structure of a blow-molded bottle is made up of the multilayer consisting of a polyester layer and a heat resisting resin layer, and light reflecting and absorbing pigments are incorporated in the polyester layer simultaneously. CONSTITUTION:In a bottle 10, a neck part 1 and a support ring 5 have a five- layer structure consisting of a three-layer heat resisting resin layer 9 and a two-layer polyester layer 7 and a body part 2 and a bottom part 4 consist of one-layer pigment-containing polyester layer 7. As the polyester resin constituting the polyester layer 7, a thermoplastic resin consisting of saturated dicarboxylic acid and saturated dihydric alcohol can be used. A light reflecting pigment is added to the polyester resin in an amount of 2.5-6.0 pts.wt. relative to 100 pts.wt. polyester and a light absorbing pigment is also added thereto in an amount of 0.005-0.015 pts.wt. relative to 100 pts.wt. polyester. On the other hand, polyarylate can be used as the resin for the heat resisting resin layer 9.
Inventors:
KAMEUMI JUJI
NANJO KATSUYA
NANJO KATSUYA
Application Number:
JP23540790A
Publication Date:
October 06, 1999
Filing Date:
September 05, 1990
Export Citation:
Assignee:
DAINIPPON INSATSU KK
International Classes:
B29C49/08; B29C49/22; B32B1/02; B32B7/02; B32B27/20; B65D1/02; B32B27/08; B29K67/00; B29K69/00; (IPC1-7): B32B7/02; B29C49/08; B29C49/22; B32B1/02; B32B27/20; B65D1/02
Attorney, Agent or Firm:
Takaishi Tachibana