Title:
多数層ポリエステルフィルム
Document Type and Number:
Japanese Patent JP4035637
Kind Code:
B2
Abstract:
A multilayer polyester film, and a method for making the same, is provided. The film consists of alternating layers of polyethylene terephthalate and polyethylene naphthalate. Biaxial orientation and subsequent restrained heat setting of these materials results in thin films with tensile moduli in both stretch directions well in excess of the values obtained with monolithic films of either material. In some embodiments, a slippery surface is imparted to the film without the use of conventional slip agents.
Inventors:
Carter, Brand K.
Racking, Raymond Elle.
Klein, James A.
Israel, Sheldon Jay.
Racking, Raymond Elle.
Klein, James A.
Israel, Sheldon Jay.
Application Number:
JP53176497A
Publication Date:
January 23, 2008
Filing Date:
February 07, 1997
Export Citation:
Assignee:
3M COMPANY
International Classes:
B32B27/36; B29C55/02; G02B5/28; B29K67/00; B29L9/00
Domestic Patent References:
| JP3058318A | ||||
| JP9220796A | ||||
| JP3224722A |
Attorney, Agent or Firm:
Takashi Ishida
Yoshio Yoshio
Toshio Toda
Masaya Nishiyama
Higuchi Souji
Yoshio Yoshio
Toshio Toda
Masaya Nishiyama
Higuchi Souji