RIGID POLYURETHANE FOAM AND MANUFACTURING METHOD AND APPLICATIONS THEREOF
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United States of America Patent
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Aug 31, 2016
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Mar 5, 2014
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The embodiments of the present invention provide a rigid polyurethane foam, being prepared at least from the following raw materials in parts by weight through mixing and reaction: 135-165 parts of polyisocyanate, 100 parts of polyol composition, 10-16 parts of C-pentane, 1.8-2.3 parts of catalyst, 1.8-2.5 parts of silicone oil, 1.6-2.4 parts of water, and 1-chloro-3,3,3-trifluoropropene accounting for 1%-3% of the total weight of the raw materials. The embodiments of the present invention also provide a preparation method of the rigid polyurethane foam and applications of the rigid polyurethane foam in the industries of refrigerators and freezers.
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