Plastic and nonmetallic article shaping or treating: processes – Forming continuous or indefinite length work – Layered – stratified traversely of length – or multiphase...
Reexamination Certificate
2005-05-24
2005-05-24
Copenheaver, Blaine (Department: 1733)
Plastic and nonmetallic article shaping or treating: processes
Forming continuous or indefinite length work
Layered, stratified traversely of length, or multiphase...
C264S173160
Reexamination Certificate
active
06896832
ABSTRACT:
In the resin film forming method for extruding a fused resin from an extruder die to form a resin film, the second resin forming both ends in width direction of the resin film uses a resin greater in extension viscosity than the first resin forming the center in width direction of the resin film. Thereby, even if production conditions such as resin condition and operating conditions change, faults such as neck-in and its resultant thickening at both ends of the resin film can be suppressed. In the production of a laminate by nipping a support and a resin film of a thermoplastic resin by means of a nip roller and a cooling roller while coating the resin film onto the surface of the support, the accompanying air following the rotation of the cooling roller to the nip point is shut off by blowing a gas permeable through the resin film from a gas jet nozzle toward the surface of the cooling roller. Thereby, the occurrence of craters can be inhibited, a laminate excellent in surface appearance can be produced and the production of a laminate effective especially at the time of a line speed rise in the laminate production is performable.
REFERENCES:
patent: 3077428 (1963-02-01), Heuser et al.
patent: 4272312 (1981-06-01), Thompson
patent: 4348346 (1982-09-01), Thompson
patent: 4731004 (1988-03-01), Wenz, Jr.
patent: 4784815 (1988-11-01), Cloeren et al.
patent: 5120484 (1992-06-01), Cloeren
patent: 5594095 (1997-01-01), Gruber et al.
patent: 5700412 (1997-12-01), Mehra et al.
patent: 5716570 (1998-02-01), Peiffer et al.
patent: 0 285 146 (1988-10-01), None
patent: 57-207019 (1982-12-01), None
patent: 61-242820 (1986-10-01), None
patent: 62-13317 (1987-01-01), None
patent: 63-246227 (1988-10-01), None
patent: 64-3655 (1989-01-01), None
patent: 64-64822 (1989-03-01), None
patent: 4-81836 (1992-03-01), None
patent: 5-33134 (1993-05-01), None
patent: 5-82806 (1993-11-01), None
patent: 6-91723 (1994-04-01), None
patent: 6-61819 (1994-08-01), None
patent: 6-214342 (1994-08-01), None
patent: 8-36238 (1996-02-01), None
Katsumoto Ryuichi
Kegasawa Tadahiro
Okamura Hidetoshi
Takase Masanori
Copenheaver Blaine
Musser Barbara J.
LandOfFree
Resin film forming method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Resin film forming method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Resin film forming method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3376066