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公开(公告)号：US4518522A
公开(公告)日：1985-05-21
申请号：US533081
申请日：1983-09-19
CPC分类号： C08G18/8093 , C08G18/10 , C08G18/2815 , C08G18/2865
摘要： The present invention is directed to a process for improving the storage stability of a composition which contains(a) a blocked polyisocyanate prepared by blocking the isocyanate groups of an organic polyisocyanate with a blocking agent comprising a di-C.sub.1 -C.sub.12 -alkyl and/or -alkoxyalkyl malonate and(b) is free from compounds containing at least two isocyanate-reactive hydrogens, which comprises incorporating a stabilizing amount of a compound having monofunctional reactivity towards isocyanates into the composition.The present invention is also directed to the storage stable composition produced in accordance with the above process.
摘要翻译： 本发明涉及一种用于提高组合物的储存稳定性的方法，该组合物含有（a）通过用含有二-C 1 -C 12 - 烷基和/或C 1 -C 12烷基的封端剂封端有机多异氰酸酯的异氰酸酯基而制得的封端多异氰酸酯 - 烷氧基烷基丙二酸酯和（b）不含含有至少两个异氰酸酯反应性氢的化合物，其包括将稳定量的具有对异氰酸酯的单官能反应性的化合物掺入组合物中。 本发明还涉及根据上述方法生产的储存稳定组合物。
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公开(公告)号：US4677180A
公开(公告)日：1987-06-30
申请号：US886598
申请日：1986-07-16
CPC分类号： C08G18/3221 , C08G18/089 , C08G18/3823 , C08G18/65 , C08G18/8093
摘要： The present invention is directed to a process for improving the storage stability of a composition containing(a) a blocked polyisocyanate component prepared by blocking the isocyanate groups of an organic polyisocyanate with a blocking agent comprising a di-C.sub.1 -C.sub.12 -alkyl and/or -alkoxyalkyl malonate and(b) a high molecular weight component comprising a compound containing at least two isocyanate-reactive hydrogens,which comprises incorporating a stabilizing amount of a low molecular weight compound having at least 2 hydroxyl groups into the composition by adding said compound to compound (a), component (b) or to the mixture of compounds (a) and (b).The present invention is also directed to the storage stable composition produced in accordance with the above process.
摘要翻译： 本发明涉及一种提高含有（a）通过用含有二-C 1 -C 12 - 烷基和/或C 1 -C 12烷基的封端剂封闭有机多异氰酸酯的异氰酸酯基而制备的封端多异氰酸酯组分的组合物的储存稳定性的方法。 - 丙烯酸烷氧基烷基酯和（b）包含含有至少两个异氰酸酯反应性氢的化合物的高分子量组分，其包括将稳定量的具有至少2个羟基的低分子量化合物加入组合物中，将所述化合物加入到 化合物（a），组分（b）或化合物（a）和（b）的混合物。 本发明还涉及根据上述方法生产的储存稳定组合物。
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3.发明授权公开(公告)号：US06364925B1
公开(公告)日：2002-04-02
申请号：US09458818
申请日：1999-12-10
IPC分类号： C05G500
CPC分类号： C09D175/04 , C08G18/4891 , C08G18/6696
摘要： The present invention relates to polyurethane encapsulated fertilizer particles which exhibit slow-release properties and to a process for their production. The process comprises applying an isocyanate-reactive component to fertilizer particles, to form fertilizer particles coated with an isocyanate-reactive component, applying a polyisocyanate component onto the coated fertilizer particles to form polyurethane encapsulated fertilizer particles, and, optionally, repeating these steps as many times as necessary to form the polyurethane encapsulated fertilizer particles that contain about 2 to 20% by weight of polyurethane, based on the total weight of the encapsulated fertilizer particles. Suitable isocyanate-reactive components include polyesterether polyols that comprise either a blend of or the reaction product of (i) castor oil having an OH number of about 160 to about 170, a viscosity of about 500 to about 900 mPa.s at 25° C., and a water content of less than 0.5% by weight; and (ii) a polyether polyol having an OH number of from 28 to 700, a functionality of from 3 to 8, and a molecular weight of about 240 to about 6,000, and a viscosity of from about 50 to 35,000 mPa.s at 25° C. The polyether polyol must be prepared from a suitable initiator compound and an alkylene oxide comprising at least 70% by weight of propylene oxide.
摘要翻译： 本发明涉及具有缓释特性的聚氨酯包封肥料颗粒及其生产方法。 该方法包括将异氰酸酯反应性组分施用于肥料颗粒，以形成涂覆有异氰酸酯反应性组分的肥料颗粒，将多异氰酸酯组分施加到涂覆的肥料颗粒上以形成聚氨酯包封的肥料颗粒，以及任选地重复这些步骤 以形成包含约2至20重量％的聚氨酯的聚氨酯包封的肥料颗粒，基于包封的肥料颗粒的总重量。 合适的异氰酸酯反应性组分包括聚异戊二烯多元醇，其包含（i）OH值为约160至约170的蓖麻油，25℃下约500至约900mPa.s的粘度的混合物或其反应产物 含水量小于0.5重量％; 和（ii）OH值为28至700，官能度为3至8，分子量为约240至约6,000，粘度为约50至35,000mPa.s在25的聚醚多元醇 聚醚多元醇必须由合适的引发剂化合物和包含至少70重量％环氧丙烷的烯化氧制备。
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公开(公告)号：US06358296B1
公开(公告)日：2002-03-19
申请号：US09613680
申请日：2000-07-11
IPC分类号： C05G500
CPC分类号： C08G18/36 , C05G3/0029 , C08G18/7664
摘要： This invention relates to polyurethane encapsulated fertilizer particles which exhibit slow-release properties and to a process for their production. The process comprises (1) applying an isocyanate-reactive component or a polyisocyanate component to fertilizer particles, to form coated fertilizer particles, followed by (2) applying a polyisocyanate component or an isocyanate-reactive component onto the coated fertilizer particles to form polyurethane encapsulated fertilizer particles, and, optionally, repeating these steps as many times as necessary to form the polyurethane encapsulated fertilizer particles that contain about 2 to 20% by weight of polyurethane, based on the total weight of the encapsulated fertilizer particles. Alternatively, the isocyanate-reactive component and the polyisocyanate component can be premixed prior to being applied to the fertilizer particles to form polyurethane encapsulated fertilizer particles. Suitable isocyanate-reactive components comprise oleo polyols.
摘要翻译： 本发明涉及具有缓释特性的聚氨酯包封的肥料颗粒及其生产方法。 该方法包括（1）将异氰酸酯反应性组分或多异氰酸酯组分施用于肥料颗粒，以形成包覆的肥料颗粒，随后将（2）将多异氰酸酯组分或异氰酸酯反应性组分施加到涂覆的肥料颗粒上以形成聚氨酯包封 肥料颗粒，并且任选地重复这些步骤，以根据包封的肥料颗粒的总重量形成含有约2至20重量％聚氨酯的聚氨酯包封的肥料颗粒。 或者，异氰酸酯反应性组分和多异氰酸酯组分可以在施用于肥料颗粒之前预混合以形成聚氨酯包封的肥料颗粒。 合适的异氰酸酯反应性组分包括油醇多元醇。
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公开(公告)号：US6165550A
公开(公告)日：2000-12-26
申请号：US121482
申请日：1998-07-23
CPC分类号： C05G3/0029 , C08G18/3275 , C08G18/7664 , C08G18/8019 , C08G2310/00
摘要： This invention relates to processes for the production of symmetrical polyurea-urethane coated granular fertilizer products, and to the symmetrical polyurea-urethane coated granular fertilizer products produced by these processes. These processes comprise coating fertilizer granules with compounds which react to form urethane coatings which contain terminal isocyanate groups, followed by polymerization of these urethanes to form symmetrical polyurea-urethanes. Suitable compounds comprise a) an organic polyisocyanate component, and b) an alkanolamine component containing at least one tertiary amine group and at least one hydroxyl group. These compounds are present in sufficient quantities that the molar ratio of isocyanate groups to isocyanate-reactive groups is from about 1.6:1.0 up to about 10.0:1.0 in each encapsulating layer. It is necessary that sufficient amounts of these compounds are applied to the fertilizer granules such that the symmetrical polyurea-urethane coated granular fertilizer particles contain from about 0.5 to about 15% by weight of polyurea-urethane, based on the total weight of the encapsulated fertilizer particles.
摘要翻译： 本发明涉及用于生产对称聚脲 - 氨基甲酸酯涂覆的颗粒肥料产品的方法以及由这些方法生产的对称聚脲 - 氨基甲酸酯涂覆的颗粒肥料产品。 这些方法包括用化合物涂覆化合物颗粒，所述化合物反应形成含有末端异氰酸酯基团的氨基甲酸酯涂料，随后聚合这些聚氨酯以形成对称的聚脲 - 氨基甲酸酯。 合适的化合物包括a）有机多异氰酸酯组分，和b）含有至少一个叔胺基团和至少一个羟基的链烷醇胺组分。 这些化合物以足够的量存在，每个包封层中异氰酸酯基与异氰酸酯反应性基团的摩尔比为约1.6:1.0至约10.0:1.0。 需要将足够量的这些化合物施加到肥料颗粒上，使得对称的聚脲 - 氨基甲酸酯涂覆的颗粒肥料颗粒含有约0.5至约15重量％的聚脲 - 氨基甲酸酯，基于包封的肥料的总重量 粒子。
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公开(公告)号：US6152981A
公开(公告)日：2000-11-28
申请号：US255285
申请日：1999-02-22
CPC分类号： C05G3/0023 , C05G3/0029 , C08G18/3206 , C08G18/7664 , C08K3/06 , C08G2230/00
摘要： This invention relates to an isocyanate composition comprising a) at least one isocyanate and b) from 1 to 50% by weight, based on the total weight of component a), of sulfur. These isocyanate compositions are suitable for the preparation of polyurethane/polyurea encapsulated fertilizers. Accordingly, the present invention also relates to an improved process for the production of a polyurea/polyurethane encapsulated fertilizer comprising applying at least one isocyanate-reactive component to the fertilizer particles and applying the isocyanate compositions of the present invention to the fertilizer particles, to form these polyurea/polyurethane encapsulated fertilizers.
摘要翻译： 本发明涉及异氰酸酯组合物，其包含a）至少一种异氰酸酯和b）基于组分a）的总重量为1至50重量％的硫。 这些异氰酸酯组合物适用于制备聚氨酯/聚脲包封肥料。 因此，本发明还涉及用于生产聚脲/聚氨酯包封的肥料的改进方法，包括将至少一种异氰酸酯反应性组分施用于肥料颗粒并将本发明的异氰酸酯组合物施用于肥料颗粒，以形成 这些聚脲/聚氨酯包封肥料。
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7.发明授权Modified PMDI for faster press times or lower press temperatures and reduction of MDI from hot presses 失效改进的PMDI可以更快的压制时间或降低印刷温度，并减少热压机的MDI
公开(公告)号：US6022444A
公开(公告)日：2000-02-08
申请号：US225036
申请日：1994-04-08
申请人： Karl W. Haider , John W. Frink , Heber D. Layton , Peter H. Markusch , James W. Rosthauser , Bonnie L. Lawson , Michael A. Joseph
发明人： Karl W. Haider , John W. Frink , Heber D. Layton , Peter H. Markusch , James W. Rosthauser , Bonnie L. Lawson , Michael A. Joseph
IPC分类号： C08G18/10 , C08G18/76 , C08G18/80 , C08L97/02 , C09J175/04 , C07C271/28 , C08G18/50 , C09J175/08
CPC分类号： C08G18/8019 , C08G18/10 , C08G18/7664 , C08L97/02 , Y10S528/905
摘要： Isocyanate prepolymers which are useful as binders are made from a polyisocyanate mixture and a hydroxyl compound having at least about 1 hydroxyl group. The polyisocyanate mixture is made up of from about 50 to about 60% by weight of polyphenyl polymethylene polyisocyanate and from about 40 to about 50% by weight of an isomeric mixture of diphenylmethane diisocyanate (MDI). The isomeric mixture of MDI is made up of from about 4 to about 30% by weight of the 2,4'-isomer and from about 70 to about 96% by weight of the 4,4'-isomer. The binders of the present invention are advantageous in that they may be used in high moisture, low temperature conditions without a catalyst. Reduced MDI emissions are also achieved when the binders of the present invention are used to make composite materials.
摘要翻译： 可用作粘合剂的异氰酸酯预聚物由多异氰酸酯混合物和具有至少约1个羟基的羟基化合物制成。 多异氰酸酯混合物由约50至约60重量％的聚苯基多亚甲基多异氰酸酯和约40至约50重量％的二苯基甲烷二异氰酸酯（MDI）的异构体混合物组成。 MDI的异构体混合物由约4至约30重量％的2,4'-异构体和约70至约96重量％的4,4'-异构体组成。 本发明的粘合剂的优点在于它们可以在没有催化剂的情况下在高水分，低温条件下使用。 当本发明的粘合剂用于制造复合材料时，也可实现减少的MDI排放。
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8.发明授权Aqueous two-component polyurethane-forming compositions and a process for their preparation 失效水性双组分聚氨酯形成组合物及其制备方法
公开(公告)号：US5372875A
公开(公告)日：1994-12-13
申请号：US14304
申请日：1993-02-05
CPC分类号： C08K7/14 , Y10T428/31551 , Y10T428/31601 , Y10T442/2992
摘要： The present invention is directed to a process for the preparation of an aqueous two-component polyurethane-forming composition bya) dispersing in water a polyisocyanate which has an isocyanate content of at least 12% by weight andb) also blending with water either before, during or after dispersing the polyisocyanate, a polyhydroxyl compound whichi) has a molecular weight of 62 to 10,000,ii) contains at least two hydroxyl groups,iii) is water soluble or water dispersible,iv) does not contain urea or urethane groups andv) is selected from the group of polyesters, polylactones, polycarbonates, polyethers, polythioethers, polyacetals, polyether esters, polyester amides and polyamides,wherein the equivalent ratio of isocyanate groups to aqueous groups is 0.8:1 to 6:1.The present invention is also directed to the aqueous composition prepared by this process and to its use as a binder for fiberglass.
摘要翻译： 本发明涉及一种制备水性双组分聚氨酯形成组合物的方法，该方法是：a）在水中分散异氰酸酯含量为至少12重量％的多异氰酸酯，和b）还可以在水之前与水混合 在分散多异氰酸酯之间或之后，分子量为62至10,000的多羟基化合物，ii）至少包含两个羟基，iii）是水溶性的或水分散的，iv）不含脲或氨基甲酸酯基团 和v）选自聚酯，聚内酯，聚碳酸酯，聚醚，聚硫醚，聚缩醛，聚醚酯，聚酯酰胺和聚酰胺，其中异氰酸酯基与水基的当量比为0.8:1至6:1。 本发明还涉及通过该方法制备的水性组合物及其作为玻璃纤维的粘合剂的用途。
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公开(公告)号：US5308657A
公开(公告)日：1994-05-03
申请号：US757779
申请日：1991-09-11
IPC分类号： B05D7/08 , C08G18/65 , C08G18/76 , C09D175/12 , B05D5/00
CPC分类号： C08G18/6529 , B05D7/08 , C08G18/7664 , C09D175/12
摘要： The invention is directed to a process for protecting the edges of a panel by applying a non-sagging polyurethane composition to the edges of said panel, and allowing the composition to cure.
摘要翻译： 本发明涉及通过将不流挂的聚氨酯组合物施加到所述面板的边缘并且允许组合物固化来保护面板的边缘的方法。
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10.发明授权Process for sealing and/or priming concrete with aqueous polyisocyanate dispersions and the concrete obtained by this process 失效密封和/或配制水性聚氨酯分散体和本方法获得的混凝土的方法
公开(公告)号：US5236994A
公开(公告)日：1993-08-17
申请号：US676678
申请日：1991-03-28
CPC分类号： C04B41/009 , C04B41/4884 , C04B41/63 , C08G18/283 , C08G18/706 , C08G18/8038 , C08G18/8041 , Y10T428/31551 , Y10T428/31598
摘要： The present invention is directed to a process for sealing and/or priming concrete by applying to concrete an aqueous polyisocyanate dispersion which has an isocyanate content of at least 0.5% by weight, based on the weight of the polyisocyanate, and is prepared bya) dispersing in water a polyisocyanate which has an isocyanate content of at least 12% by weight andb) optionally reacting the dispersed polyisocyanate withi) a primary or secondary monoamine containing at least one hydroxyl group in an amount sufficient to provide an equivalent ratio of amino groups to isocyanate groups of 0:1.0 to 0.7:1.0 and/orii) a polyamine having primary and/or secondary amino groups and a molecular weight of 400 or less in an amount sufficient to provide an equivalent ratio of amino groups to isocyanate groups of 0:1.0 to 0.4:1.0,provided that when components i) and ii) are both reacted with the dispersed polyisocyanate, component i) is mixed with the dispersed polyisocyanate either before or during the mixing of component ii) and the equivalent ratio of amino groups from both components i) and ii) does not exceed 0.95:1.0.The present invention is also directed to the primed and sealed concrete obtained in accordance with this process.
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