METHOD AND APPARATUS FOR MANUFACTURING PLASTIC MOLDING FROM FLOWABLE REACTION MIXTURE
PROBLEM TO BE SOLVED: To provide a method for manufacturing a molding plastic product for preventing occurrence of foam at an initial time of a shot. SOLUTION: The method for manufacturing the molding plastic product manufactures a polyurethane product molded from a flowable polyol polyisocyanate re...
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Main Authors | , , |
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Format | Patent |
Language | English |
Published |
28.05.2002
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Edition | 7 |
Subjects | |
Online Access | Get full text |
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Summary: | PROBLEM TO BE SOLVED: To provide a method for manufacturing a molding plastic product for preventing occurrence of foam at an initial time of a shot. SOLUTION: The method for manufacturing the molding plastic product manufactures a polyurethane product molded from a flowable polyol polyisocyanate reaction mixture existing in a mixing chamber. The method comprises a step (a) of introducing the flowable reaction mixture to a mold so that the mixing chamber substantially becomes vacant, and a step (b) of removing a peripheral gas existing in the chamber before repeating the step (a) though the step (a) is finished. |
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Bibliography: | Application Number: JP20010267096 |