Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ – Composite article making
Patent
1975-08-15
1978-10-17
Anderson, Philip
Plastic and nonmetallic article shaping or treating: processes
Pore forming in situ
Composite article making
261112, 264 458, 264 50, 264DIG2, 264DIG5, 264DIG13, 264DIG17, 521917, 521138, 521178, 521133, 422133, B29D 2704
Patent
active
041209230
ABSTRACT:
Stable foams of reaction resins and/or condensation resins can be obtained by adding a blowing agent which is gaseous under normal conditions to the resin under pressure, the gas liquid interface being enlarged while dispensing with moving equipment, allowing the mixture to expand and to cure.
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Knox, R. B. "Frothing Processes for Urethane Foams," Dupont: Foam Bulletin (Hylene), Wilmington Del., E. I. Du Pont de Nemours & Co., (Inc.), Jun. 22, 1960, pp. 1-8.
Stengard, R. A. and R. B. Knox, "Improved Frothing Process for Rigid Urethane Foam," Dupont (Hylene) Bulletin: New Information About Urethane Foam, Wilmington, Del., E. I. Du Pont de Nemours & Co., Inc., Aug. 25, 1960, pp. 1-2.
Knox, R. E., "Letdown Valve for Frothing Rigid Foams," Dupont (Hylene) Foam Bulletin, Wilmington, Del., E. I. Du Pont de Nemours & Co., Inc., Sep. 12, 1960, pp. 1-2.
Bovender Franz
Goerden Leonhard
Gromping Franz
Kloker Werner
Niesel Harald
Anderson Philip
Bayer Aktiengesellschaft
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