首页> 外国专利> Improvement of the crushing strength and impact resistance of urea, for industrial applications e.g. glue, involves admixing urea melt with aqueous solution of urea additive comprising polyvinyl compound

Improvement of the crushing strength and impact resistance of urea, for industrial applications e.g. glue, involves admixing urea melt with aqueous solution of urea additive comprising polyvinyl compound

机译：改善工业应用中尿素的抗压强度和抗冲击性胶，涉及将尿素熔体与包含聚乙烯基化合物的尿素添加剂的水溶液混合

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摘要

Crushing strength and impact resistance of urea are improved by admixing urea melt with an aqueous solution of a urea additive comprising a polyvinyl compound. Improvement of crushing strength and impact resistance of urea involves admixing urea melt with an aqueous solution of a urea additive comprising a polyvinyl compound of formula (CHX-CHY)n. The polyvinyl compound is added in such a way that the added amount of water (H2O) is at most 5 wt.%. The obtained mixture is concentrated to dryness. n = 4-10000; X, Y = H or polar organic group. An Independent claim is also included for a composition comprising a mixture of urea and poly(vinyl alcohol) whose solidification point is 5-15 degrees C, particularly 10-15 degrees C, below the solidification point of the urea.

机译：通过将尿素熔体与包含聚乙烯基化合物的尿素添加剂的水溶液混合，可以提高尿素的抗碎强度和抗冲击性。尿素的抗碎强度和抗冲击性的改善涉及将尿素熔体与包含式（CHX-CHY）n的聚乙烯基化合物的尿素添加剂的水溶液混合。以使水（H 2 O）的添加量至多5重量％的方式添加聚乙烯基化合物。将获得的混合物浓缩至干。 n = 4-10000; X，Y ＝ H或极性有机基团。还包括对包含尿素和聚乙烯醇的混合物的组合物的独立权利要求，所述尿素和聚乙烯醇的凝固点比尿素的凝固点低5-15℃，特别是10-15℃。

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公开/公告号NL1018910C1

专利类型
公开/公告日2002-03-11

原文格式PDF
申请/专利权人 HOLLAND NOVOCHEM B.V.;
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申请/专利号NL20011018910
发明设计人 ING. JOHANNES JOSEPH NOORDOVER;DR. ERIK ALEXANDER BIJPOST;DRS. ING. JOHN VAN DER HOEVEN;DRS. ARJEN WIM VELZEL;
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申请日2001-09-07
分类号C05C9/00;C07C273/14;
国家 NL
入库时间 2022-08-22 00:44:23

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