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Title:
TRANSPARENT PLASTIC FILM HAVING HARD COAT LAYER AND PLASTIC MOLDING PROVIDED WITH HARD COAT LAYER
Document Type and Number:
Japanese Patent JP2001205726
Kind Code:
A
Abstract:

To provide a plastic film with a hard coat layer which is used on the occasion of making a plastic molding with the hard coat layer by an injection molding method and wherein no cracking occurs after molding.

In this transparent plastic film with the hard coat layer, no cracking occurs in the hard coat layer when the film is subjected to a tensile test under the conditions of a temperature of 22°C, one side being fixed and an elastic stress rate of 20 mm/min., in respect to the region satisfying the relations y<5.7 in x≤100, y<-0.018x+7.5 in 100≤x≤150, y<-0.008x+6.0 in 150≤x≤200, y<-0.005x+5.4 in 200≤x≤300, y<-0.003x+4.8 in 300≤x≤400, y<-0.002x+4.4 in 400≤x≤500 and y<3.4 in 500≤x, where the thickness of a plastic base film is denoted by x (μm) and an elongation in the test under the above conditions by y (%).


Inventors:
TAMAI KIMINORI
YAMADA CHIEKO
YAMAZAKI KATSUHIKO
Application Number:
JP2000343249A
Publication Date:
July 31, 2001
Filing Date:
November 10, 2000
Export Citation:
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Assignee:
TDK CORP
International Classes:
B65D65/40; B29C45/14; B32B7/02; B32B27/36; C08J7/04; (IPC1-7): B32B7/02; B29C45/14; B32B27/36; B65D65/40; C08J7/04
Attorney, Agent or Firm:
Masahiro Okada