Title:
収縮性虹色フィルム
Document Type and Number:
Japanese Patent JP4276943
Kind Code:
B2
Abstract:
A shrinkable iridescent film constitutes an oriented multilayer coextruded iridescent film having at least 10 generally parallel, very thin layers of substantially uniform thickness in which the contiguous adjacent layers are of heat shrinkable thermoplastic resinous material, each of which is heat shrinkable in at least one dimension in the plane of the film, the continuous adjacent layers being substantially uniformly shrinkable so as to have refractive indexes which differ by at least 0.03. The shrinkable film is made by selecting appropriate thermoplastic resinous materials, coextruding them into a thick film and then subjecting the film to orientation below the heat set temperature of the resinous materials.
Inventors:
Granny, Daniel Jei
Application Number:
JP2003530495A
Publication Date:
June 10, 2009
Filing Date:
August 28, 2002
Export Citation:
Assignee:
Basuf Catalysts LRC
International Classes:
B32B27/00; B29C55/02; B32B7/023; B32B27/06; B44F1/04; B44F1/14; B32B37/15
Domestic Patent References:
| JP5504403A | ||||
| JP2002529288A | ||||
| JP3208634A | ||||
| JP2000512224A | ||||
| JP2002519220A |
Attorney, Agent or Firm:
Patent business corporation Odashima patent office