Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ – Composite article making
Patent
1990-10-22
1992-01-21
Dawson, Robert A.
Plastic and nonmetallic article shaping or treating: processes
Pore forming in situ
Composite article making
264255, 264257, 264309, 264338, 156196, B29C 6722, B29C 4108
Patent
active
050826093
ABSTRACT:
A panel having a finish face, a substrate and a lamina of moulded polyurethane between the two is formed in a single closable die having two portions, the first stage of the operation being to spray a release agent onto a face forming surface of one die portion, then spray an aliphatic polyurethane colored film onto the release agent, spray an elastomer polyurethane over that film and allow the elastomer to at least partially set, lay a sheet of reinforcing fibre which can for example be a continuous filament glass over the at least partially set elastomer, dispense the liquid ingredients of a rigid foam polyurethane over the glass, close to the mould, and remove the product after setting.
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Hall William J.
Rohrlach Milo L.
Bridgestone Australia Ltd.
Dawson Robert A.
Kuhns Allan R.
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