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1. 发明授权

US4656196A Process for preparing in situ reticulated polyurethane foam 失效
公开(公告)号：US4656196A
公开(公告)日：1987-04-07
申请号：US904287
申请日：1986-09-08
申请人： David J. Kelly , Paul J. Cacciatore
发明人： David J. Kelly , Paul J. Cacciatore
IPC分类号： C08G18/40 , C08J9/00 , C08J9/14 , C08J9/38
CPC分类号： C08J9/0061 , C08G18/4018 , C08G18/4072 , C08G2101/005 , C08J2375/04 , C08J2425/00
摘要： An improved process for in situ production of a reticulated, open-cell polyurethane foam which comprises reacting a polyester/polyether polyol mixture with an aromatic polyisocyanate having a ratio of isocyanate moieties to aromatic moieties of about 2:1 in the presence of a catalyst and a blowing agent,the improvement comprises:said polyol mixture being(a) 80 to 95 parts by weight of polyester polyol and(b) 20 to 5 parts by weight of polyoxypropylene polyether polyol or a mixed poly(oxyethylene/oxypropylene polyether polyol, each having at least one polymer of ethylenically unsaturated monomers dispersed therein and a stabilizing surfactant for polyether polyurethane foam,and said process produces a polyurethane foam which has excellent strength properties and an exceeding low resistance to air flow.

2. 发明授权

US4503150A Polyurethane foam and a microbiological metabolizing system 失效
标题翻译：聚氨酯泡沫和微生物代谢系统
公开(公告)号：US4503150A
公开(公告)日：1985-03-05
申请号：US548172
申请日：1983-11-02
申请人： Rocco P. Triolo
发明人： Rocco P. Triolo
IPC分类号： C02F3/10 , C08G18/08 , C08J9/00 , C12N1/00 , C12P1/00 , C08G18/14 , C12N11/04
CPC分类号： C08J9/00 , C02F3/10 , C08G18/14 , C12N1/00 , C08J2375/04 , Y02W10/15
摘要： The present invention provides a polyurethane foam having significantly improved longevity in a microbiological process in which the foam functions as a support medium for microorganism in a water system containing nutrients for the microorganisms. Also provided is a method of making said improved foam and an improved microbiological metabolizing (e.g., digestion) process employing said improved foam. The present invention is based upon the discovery that enhanced foam life in such a watery, abrasive environment is substantially enhanced if the polyurethane foam formulation has a urea/urethane ratio of less than about 5 and preferably a urethane index of about 100.
摘要翻译：本发明提供了一种在微生物学方法中显着改善寿命的聚氨酯泡沫体，其中该泡沫体作为含有微生物营养物质的水体系中微生物的载体介质。还提供了制备所述改进的泡沫的方法以及使用所述改进的泡沫的改进的微生物代谢（例如消化）方法。本发明基于以下发现：如果聚氨酯泡沫制剂的尿素/氨基甲酸酯比小于约5，优选氨基甲酸酯指数为约100，则在这种水性磨料环境中增强的泡沫寿命显着增强。

3. 发明授权

US4985467A Highly absorbent polyurethane foam 失效
标题翻译：高吸水性聚氨酯泡沫
公开(公告)号：US4985467A
公开(公告)日：1991-01-15
申请号：US336954
申请日：1989-04-12
申请人： David J. Kelly , Dai W. Kim
发明人： David J. Kelly , Dai W. Kim
IPC分类号： C08J9/00
CPC分类号： C08J9/0061 , C08J2375/04 , Y10S521/905
摘要： A highly hydrophilic polyurethane article, which is the skeletal network of a cellular polyurethane foam subjected to a reticulation process wherein the polyurethane contains up to 100 parts of a superabsorbent material per hundred parts of polyol used in preparing the polyurethane, is useful in absorbing and holding large amounts of aqueous liquids is prepared by:(a) mixing a polyisocyanate, a polyol and a blowing agent with a finely divided superabsorbent material which is insoluble in a liquid which the material absorbs and which absorbs at least 15 times its weight of said liquid,(b) reacting the polyisocyanate, polyol and blowing agent under foaming conditions to produce a foam of polyurethane which cmprises a multitude of gas cells or bubbles within the polyurethane matrix,(c) curing said foam of polyurethane, forming a cellular structure with windows or membranes of solid polyurethanes present between gas cells or bubbles,(d) removing the windows or membranes by thermal reticulation thereby leaving the skeletal structure of the cured polyurethane; and said article is useful wherever high absorption and retention of large quantities of aqueous liquids is needed, including diapers, surgical sponges, and so forth.
摘要翻译：高亲水性聚氨酯制品，其是进行网状化处理的泡沫聚氨酯泡沫体的骨架网络，其中聚氨酯包含每100份用于制备聚氨酯的多元醇多达100份超吸收材料，可用于吸收和保持通过以下方法制备大量的含水液体：（a）将多异氰酸酯，多元醇和发泡剂与细分的超吸收材料混合，所述超吸收材料不溶于材料吸收的液体，并吸收其至少15倍重量的所述液体，（b）在发泡条件下使多异氰酸酯，多元醇和发泡剂反应以产生聚氨酯泡沫，其中聚氨酯基质中含有大量气泡或气泡，（c）固化所述聚氨酯泡沫，形成具有窗口的泡孔结构或存在于气体细胞或气泡之间的固体聚氨酯膜，（d）通过热回收除去窗户或膜由此离开固化的聚氨酯的骨架结构; 并且所述制品在需要大量含水液体的高吸收和保留的地方是有用的，包括尿布，手术海绵等。

4. 发明授权

US4670477A Process for preparing in situ reticulated polyurethane foam 失效
标题翻译：制备原位网状聚氨酯泡沫的方法
公开(公告)号：US4670477A
公开(公告)日：1987-06-02
申请号：US817456
申请日：1986-01-09
申请人： David J. Kelly , Paul J. Cacciatore
发明人： David J. Kelly , Paul J. Cacciatore
IPC分类号： C08G18/40 , C08J9/00 , C08J9/14 , C08J9/38
CPC分类号： C08J9/0061 , C08G18/4018 , C08G18/4072 , C08G2101/005 , C08J2375/04 , C08J2425/00
摘要： An improved process for in situ production of a reticulated, open-cell polyurethane foam which comprises reacting a polyester/polyether polyol mixture with an aromatic polyisocyanate having a ratio of isocyanate moieties to aromatic moieties of about 2:1 in the presence of a catalyst and a blowing agent,the improvement comprises:said polyol mixture being(a) 80 to 95 parts by weight of polyester polyol and(b) 20 to 5 parts by weight of polyoxypropylene polyether polyol or a mixed poly(oxyethylene/oxypropylene polyether polyol, each having at least one polymer of ethylenically unsaturated monomers dispersed therein and a stabilizing surfactant for polyether polyurethane foam,and said process produces a polyurethane foam which has excellent strength properties and an exceeding low resistance to air flow.
摘要翻译：用于原位生产网状开孔聚氨酯泡沫的改进方法，其包括在催化剂存在下使聚酯/聚醚多元醇混合物与异氰酸酯部分与芳族部分的比例为约2:1的芳族多异氰酸酯反应;和发泡剂的改进包括：所述多元醇混合物为（a）80至95重量份聚酯多元醇和（b）20至5重量份聚氧丙烯聚醚多元醇或混合聚氧乙烯/氧丙烯聚醚多元醇具有至少一种分散在其中的烯属不饱和单体的聚合物和用于聚醚聚氨酯泡沫的稳定表面活性剂，并且所述方法产生具有优异的强度性能和超过低的空气流阻力的聚氨酯泡沫。

5. 发明授权

US4777186A Restricted expansion foaming and the flexible polyurethane foam thereby produced 失效
标题翻译：因此限制膨胀发泡和柔性聚氨酯泡沫
公开(公告)号：US4777186A
公开(公告)日：1988-10-11
申请号：US045396
申请日：1987-05-04
申请人： John W. Stang , John R. Rucker
发明人： John W. Stang , John R. Rucker
IPC分类号： B29C44/60 , C08J9/02 , C08G18/30
CPC分类号： C08J9/02 , B29C44/60 , C08J2375/04
摘要： Polyurethane foams having improved physical properties are produced by placing a polymerizable polyurethane reaction mixture into a pressurizable chamber, then polymerizing the reaction mixture at an elevated pressure sufficient to prevent the resulting polymer from completely filling the chamber.
摘要翻译：具有改善的物理性能的聚氨酯泡沫体是通过将可聚合的聚氨酯反应混合物置于可加压的室中，然后在足以防止所得聚合物完全填充该室的高压下聚合该反应混合物而制备的。

6. 发明授权

US4578406A Conductive polyurethane foam and process of contacting a polyurethane foam with a mixture of swelling agent and chemical additive 失效
标题翻译：导电聚氨酯泡沫和使聚氨酯泡沫与溶胀剂和化学添加剂的混合物接触的方法
公开(公告)号：US4578406A
公开(公告)日：1986-03-25
申请号：US684012
申请日：1984-12-20
申请人： Robert A. Volz
发明人： Robert A. Volz
IPC分类号： C08G18/00 , C08G18/82 , C08J9/34 , C08J9/40 , H01B1/12 , C08G18/14
CPC分类号： C08J9/40 , H01B1/122 , C08J2375/04
摘要： Polyurethane foam is modified by a post-treatment process comprising the steps of contacting the polyurethane foam with a swelling agent for the polyurethane foam and interpenetrating the swollen foam with a chemical additive, then shrinking the interpenetrated foam by removing the swelling agent under conditions where the chemical additive remains trapped in the polymeric structure of the foam.
摘要翻译：通过后处理方法改性聚氨酯泡沫，其包括以下步骤：使聚氨酯泡沫与聚氨酯泡沫的溶胀剂接触，并用化学添加剂将溶胀的泡沫互相渗透，然后通过在下列步骤的条件下除去溶胀剂来收缩互穿的泡沫：化学添加剂残留在泡沫的聚合物结构中。

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