Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – Automatic and/or material-triggered control
Patent
1996-06-03
1998-02-10
Maki, Steven D.
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
Automatic and/or material-triggered control
156361, 156441, 156498, 425384, 425407, 425509, B29C 7052
Patent
active
057164878
ABSTRACT:
A method for producing a pultrusion product having a variable cross-section using a specially adapted temperature controllable pultrusion die includes the steps of pulling reinforcing fibers which have been impregnated with a heat curable thermosetting polymeric resin composition through a temperature controllable die, heating the temperature controllable die to a temperature sufficient to effect curing of the thermosetting resin, cooling the temperature controllable die to a temperature which is sufficiently low to prevent any significant curing of thermosetting resin passing through the pultrusion die, pulling the cured material and a predetermined length of uncured material from the die, reshaping the uncured material, and curing the reshaped material. The reshaping step can be used to provide off-sets, flanges, bosses and the like. The method and associated apparatus of the invention provide a relatively simple and inexpensive way of producing fiber-reinforced thermoset plastics having a variable cross-section.
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Defensive Publication: Document/Publication No. T101,401, dated Jan. 5, 1982, to Zion, only three pages were available from the U.S. PTO Depository Library in Cleveland, Ohio.
Creative Pultrusions, Inc.
Maki Steven D.
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