US Patent: 3,674,720
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| Process for Mixing Coreactive Liquids which Form Polyurethanes
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Patentee:
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| Donald Dunn (exact or similar names) - Cincinnati, Hamilton County, OH |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Nov. 19, 1969 |
| Granted: |
Jul. 04, 1972 |
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Joel Havens
"Vintage Machinery" entry for Cincinnati Milling Machine Co.
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Description: |
| Abstract:
A process and apparatus for intimately mixing two or more mutually coreactive liquids such as polyols and polyisocyanates comprising: A. passing the liquids, while in a substantially unmixed state, through a plurality of very small holes such as that provided by a screen, and immediately thereafter B. subjecting the liquids to a high shear. The present process and apparatus find particular utility in the production of high density, foamed polyurethane moldings. |
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