Method and apparatus for making tubular resin elements such as p

Details Method and apparatus for making tubular resin elements such as p Method and apparatus for making tubular resin elements such as p

1972-03-22

1977-03-08

Drummond, Douglas J.

Coating processes

Solid particles or fibers applied

Uniting particles to form continuous coating with...

156173, 156242, 156276, 156298, 264166, 264255, 427201, 427203, 427374C, 427379, B29C 1304, B65H 8104

Patent

active

040113540

ABSTRACT:
There is disclosed a method and apparatus for making tubular fiber reinforced thermosetting resin elements having a thermoplastic lining. The technique involves application of a thermoplastic lining layer to an axially moving mandrel surface, application of at least one layer of fiber reinforced thermosetting resin material superimposed upon the lining layer, providing for bonding of thermosetting and thermoplastic layers to each other, and heating the thermosetting resin to effect solidification during axial advancement of the superimposed layers with the moving mandrel surface. Provision is also made for applying a thermoplastic jacket layer superimposed upon the thermosetting layer.

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