Title:
BIAXIALLY ORIENTED POLYMER FILM
Document Type and Number:
Japanese Patent JP3225229
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To improve environmental resistance characteristic and improve thermal stability even at a lower temperature by comprising an ordered polymer having a particular molecular structure and specifying the physio-chemical characteristics such as an ultimate tensile strength, a tensile modulus, a coefficient of thermal expansion, or a dielectric constant.
SOLUTION: A biaxially oriented film comprises an ordered polymer having the molecular structure of a rigid rod indicated by the formula and has the following physio-chemical characteristics: an ultimate tensile strength greater than about 50,000 psi in one direction and greater than about 20,000 psi in any direction; a tensile modulus greater than about 2×103 psi in one direction and greater than about 4×102 psi in any direction; a coefficient of thermal expansion selected from either negative, positive or zero in any direction in the plane of the film; a dielectric constant less than about 6.0; a less than 1% weight loss in a vacuum at 125°C for 24 hr; and a less than 1% weight gain in water at 100°C for 24 hr.
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Inventors:
Andrew Sea Harvey
Richard D'Abrieu Lusigny
Dark M Birds
Donald Day Bletics
Robert Bee Davis
Richard D'Abrieu Lusigny
Dark M Birds
Donald Day Bletics
Robert Bee Davis
Application Number:
JP35189698A
Publication Date:
November 05, 2001
Filing Date:
December 10, 1998
Export Citation:
Assignee:
Huoster Mirror Incorporated
Albany International Research Company
Albany International Research Company
International Classes:
C08J5/18; B29C55/12; B29C55/28; C08G73/06; C08G73/22; C08G75/02; C08G75/0209; B29K81/00; B29L7/00; (IPC1-7): B29C55/12; B29C55/28; C08G75/02; C08J5/18
Domestic Patent References:
| JP63121827A | ||||
| JP54132674A | ||||
| JP5347460A | ||||
| JP63173620A | ||||
| JP6374622A | ||||
| JP61102234A | ||||
| JP4506636A |
Attorney, Agent or Firm:
Yoshio Kawaguchi