Roll of polyvinyl alcohol film and polarizing film prepared...

Details Roll of polyvinyl alcohol film and polarizing film prepared... Roll of polyvinyl alcohol film and polarizing film prepared...

2007-04-17

2007-04-17

Lavarias, Arnel (Department: 2872)

Winding, tensioning, or guiding

Wound storage package

Convolute coil

C242S160100

Reexamination Certificate

active

10731289

ABSTRACT:
A polyvinyl alcohol film roll including a cylindrical core tube made of a metallic material and having a surface roughness of at most 100 S and a polyvinyl alcohol film wound up around the cylindrical core tube, the film roll being obtained by forming the film from a solution of a polyvinyl alcohol resin and winding up the film around the core tube, and the film roll being capable of providing an optically homogeneous polyvinyl alcohol film having an excellent appearance.

REFERENCES:
patent: 5762289 (1998-06-01), Suzuki
patent: 2001/0024322 (2001-09-01), Harita et al.
patent: 2001/0039319 (2001-11-01), Harita et al.
patent: 2002/0001700 (2002-01-01), Sanefuji et al.
patent: 2003/0156235 (2003-08-01), Kazuhara et al.
patent: 2004/0069885 (2004-04-01), Kobayashi et al.
patent: 1 162 227 (2001-12-01), None
patent: 2001310435 (2001-11-01), None
Edward Boyle, “Core selection—the difference between success and failure”, Paper, Film & Foil Converter, Feb. 1, 1996.

Affiliated with

Also associated with

Rating

Roll of polyvinyl alcohol film and polarizing film prepared... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Roll of polyvinyl alcohol film and polarizing film prepared..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Roll of polyvinyl alcohol film and polarizing film prepared... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3756814