Resources Contact Us Home
Laminate production apparatus

Image Number 5 for United States Patent #7111657.

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.

  Recently Added Patents
Polyolefin and composition for pipe systems and sheets
Switching apparatus and controlling method thereof
Method and apparatus for visual neural stimulation
Attribute category enhanced search
Toner for developing electrostatic charge image, electrostatic charge image developer, toner cartridge, process cartridge, image forming method, and image forming apparatus
Permanent magnet axial field zeeman slower
Emulsions containing arylboronic acids and medical articles made therefrom
  Randomly Featured Patents
Separation process for treatment of oily sludge
Apparatus for leaching core material from clad nuclear fuel pin segments
Rigidized monomethine cyanines
Tris(disubstituted amino)sulfonium perfluorocarbanion salts
Shielded magnetic tunnel junction magnetoresistive read head
Television simulator for DST transformers
Chrysanthemum plant named `Morena`
Cloning and expression of gonadotropin-releasing hormone (GnRH) receptors
Intermediate boosted array voltage
Multiple bypass-duct turbofan with annular flow plug nozzle and method of operating same