Resin forming method

Details Resin forming method Resin forming method

1997-10-14

1999-06-15

Tentoni, Leo B.

Plastic and nonmetallic article shaping or treating: processes

With printing or coating of workpiece

Anti-stick or adhesion preventing coating

264169, 26421114, D01D 110, D01D 400, D06M 15643

Patent

active

059119314

ABSTRACT:
A method for forming a resin including the steps of forming a resin by using a resin forming nozzle device while supplying thereto a surface lubricant for mold release, having a viscosity of 0.1 to 1,000 cP during use and a surface tension of 40 dyn/cm or less at a temperature of 25.degree. C., wherein the resin forming nozzle device includes the surface lubricant being continuously introduced to a nozzle face having the discharge openings of resin extrusion orifices, the device further including a feed section for supplying a surface lubricant from the outside, and one or more grooves formed on said nozzle face in positions adjacent to the discharge openings of the nozzle face so that the grooves have a width of 10 to 3,000 .mu.m and a depth of 10 .mu.m or greater and at least one end thereof communicates with the surface lubricant feed section.

REFERENCES:
patent: 4034034 (1977-07-01), Eberius et al.
patent: 4203939 (1980-05-01), Drachenberg et al.
patent: 4301101 (1981-11-01), Bachmann et al.
patent: 4388057 (1983-06-01), Bachmann et al.

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