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
Implant for performance enhancement of selected transistors in an integrated circuit
Controller for internal combustion engine
Wound dressing with a discontinuous contact layer surface
DKK1 oncogene as therapeutic target for cancer and a diagnosing marker
Flexible lighting devices
Methods and system for displaying segmented images
Apparatus and methods for providing efficient space-time structures for preambles, pilots and data for multi-input, multi-output communications systems
  Randomly Featured Patents
Tube assembly with a breakaway plug
Interchangeable plug power supply with automatically adjusting input voltage receiving mechanism
Scraping device and a system and a method for collecting materials
Release bearing having rigid bearing bosses deflecting dirt or grime
Method of brake fluid disposal and grinding aid for cement material
Petunia plant named `Balpelite`
Sparse-coded look-up table
Contact lens case with raised, protective ribs
Simulation device and simulation method