Plastic and nonmetallic article shaping or treating: processes – Optical article shaping or treating – Nonmechanical aftertreatment
Reexamination Certificate
2005-01-18
2005-01-18
Colaianni, Michael P. (Department: 1732)
Plastic and nonmetallic article shaping or treating: processes
Optical article shaping or treating
Nonmechanical aftertreatment
C264S002700, C264S085000, C264S210100, C264S210500, C264S235600, C264S288400, C264S291000, C264S346000, C264S435000
Reexamination Certificate
active
06843941
ABSTRACT:
A film made of a vinylidene-trifluoroethylene or tetrafluoroethylene copolymer is uniaxially drawn to fabricate a uniaxially drawn film. Then, the uniaxially drawn film is thermally treated at a temperature within a temperature range of the Curie temperature through the melting point of the vinylidene-trifluoroethylene or tetrafluoroethylene copolymer for five hours or over, to diffuse the molecular chains of the uniaxially drawn film along the orientation direction and thus, to remove the intertwining between the molecular chains.
REFERENCES:
patent: 3869534 (1975-03-01), Yoshikawa et al.
patent: 3878274 (1975-04-01), Murayama et al.
patent: 4508668 (1985-04-01), Broussoux et al.
patent: 4578442 (1986-03-01), Ohigashi et al.
patent: 4692285 (1987-09-01), Bloomfield et al.
patent: 4778867 (1988-10-01), Pries
patent: 4800048 (1989-01-01), Bloomfield et al.
patent: 4808352 (1989-02-01), Bhateja
patent: 5254296 (1993-10-01), Perlman
patent: 5288551 (1994-02-01), Sato et al.
patent: 5410210 (1995-04-01), Sato et al.
patent: 5480692 (1996-01-01), Nicolai et al.
patent: 5679753 (1997-10-01), Ohigashi et al.
patent: 6512064 (2003-01-01), Higuchi et al.
patent: 2681032 (1997-08-01), None
Machine translation of JP 08-036917 A, May 2004, Japanese Patent Office website.
Colaianni Michael P.
Knuth Randall J.
Ohigashi Hiroj
Poe Michael I.
LandOfFree
Method for fabricating a ferroelectric polymer film does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for fabricating a ferroelectric polymer film, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for fabricating a ferroelectric polymer film will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3373020