Method for manufacture of shaped article of polyurethane foam

Details Method for manufacture of shaped article of polyurethane foam Method for manufacture of shaped article of polyurethane foam

1981-11-09

1985-01-22

Anderson, Philip

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

By gas forming or expanding

209509, 264 406, 264236, 425144, 425160, 425451, 425817R, B29D 2704

Patent

active

044951205

ABSTRACT:
A method for the manufacture of shaped articles of polyurethane foam, which comprises pretreating metal molds for at least two types of shaped articles of polyurethane foam conveyed on conveyor units connected to heater units, forwarding said metal molds on the conveyor units according to the types of shaped articles to be produced, adjusting temperatures of said metal molds, feeding relevant polyurethane dopes to said metal molds, conveying said metal molds containing the dopes on conveyor units into the heater unit containing hot water, and immersing said metal molds in the hot water thereby allowing the dopes to foam and set within said metal molds.

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