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1. 发明授权

US06294248B1 Soft molded composites and a process for their production 失效
标题翻译：软成型复合材料及其生产工艺
公开(公告)号：US06294248B1
公开(公告)日：2001-09-25
申请号：US08313488
申请日：1994-09-27
申请人： Sanjeev Madan , James R. Jasenak , David L. Fair
发明人： Sanjeev Madan , James R. Jasenak , David L. Fair
IPC分类号： B29C4406
CPC分类号： C08G18/6685 , B29C44/14 , C08G18/10 , C08G2101/0008 , C08G2101/0058 , C08G2101/0083 , Y10T428/249988 , Y10T428/249991
摘要： Molded, soft composite articles such as seat cushions are made by (a) applying a composition which forms a soft elastomer to all interior walls of an open mold, (b) introducing a composition which will react to form a low density, high resiliency, flexible foam under molding conditions into the mold in a manner such that the foam-forming composition will be substantially completely within the elastomer-forming composition; (c) closing the mold (i) prior to introduction of the foam-forming composition or (ii) at some point during or subsequent to introduction of the foam-forming mixture but before foam formation is completed and (d) allowing the foam-forming mixture to form a foam. The composite articles produced by this simple one-step process are characterized by good cushioning characteristics, good abrasion resistance and good mold reproducibility. This molding process generates less waste and requires less labor and equipment than current commercial processes.
摘要翻译：通过（a）将形成软质弹性体的组合物施加到开放模具的所有内壁上，（b）引入将反应以形成低密度，高回弹性的组合物，在模塑条件下将柔性泡沫以使得泡沫形成组合物基本上完全在弹性体形成组合物内的方式加入到模具中; （c）在引入泡沫形成组合物之前关闭模具（i），或（ii）在引入泡沫形成混合物期间或之后的某个时间点，但在泡沫形成完成之前，以及（d）形成混合物以形成泡沫。通过这种简单的一步法生产的复合制品的特征在于具有良好的缓冲特性，良好的耐磨性和良好的模具再现性。与目前的商业流程相比，这种成型过程产生的废物少，劳动力和设备要少。

2. 发明授权

US4900760A Flexible polyurethane foam prepared from a novel polyisocyanate mixture 失效
标题翻译：由新型多异氰酸酯混合物制备的柔性聚氨酯泡沫
公开(公告)号：US4900760A
公开(公告)日：1990-02-13
申请号：US307651
申请日：1989-02-07
申请人： James R. Jasenak
发明人： James R. Jasenak
IPC分类号： C08G18/76
CPC分类号： C07C265/12 , C08G18/7664 , C08G2101/0008 , C08G2101/005 , C08G2101/0058
摘要： The present invention is directed to a novel isocyanate mixture and the use thereof in producing a flexible polyurethane foam. The polyisocyanate mixture comprises(a) for 73 to 77% by weight of methylene bis(phenylisocyanate), said methylene bis(phenylisocyanate) having an isomer content as follows:(i) from about 30 to about 34% by weight of the 2,4' isomer,(ii) from about 60 to about 66% by weight of the 4,4'- isomer, and(iii) from about 3 to about 7% by weight, the 2,2' isomer, the percent of said isomers totaling 100%(b) from 23 to 27% by weight of higher functional methylene-bridged polyphenyl polyisocyanates, the percents of components (a) and (b) totaling 100%, and wherein said polyisocyanate mixture has an isocyanate group content of from about 30 to about 33.5 percent by weight.
摘要翻译：本发明涉及一种新的异氰酸酯混合物及其在制备柔性聚氨酯泡沫塑料中的用途。多异氰酸酯混合物包含（a）73至77重量％的亚甲基双（异氰酸苯酯），所述亚甲基双（异氰酸苯酯）具有如下异构体含量：（i）约30至约34重量％ 4'异构体，（ii）约60至约66重量％的4,4'-异构体，和（iii）约3至约7重量％的2,2'异构体，所述总共100％（b）的23％至27％的高级官能亚甲基桥接聚苯基多异氰酸酯的异构体，组分（a）和（b）的百分比总计为100％，其中所述多异氰酸酯混合物的异氰酸酯基团含量为约30至约33.5重量％。

3. 发明授权

US4822517A Novel polyisocyanate mixture 失效
标题翻译：新型多异氰酸酯混合物
公开(公告)号：US4822517A
公开(公告)日：1989-04-18
申请号：US62933
申请日：1987-06-16
申请人： James R. Jasenak
发明人： James R. Jasenak
IPC分类号： C07C265/12 , C08G18/76 , C09K3/00 , H05B33/00
CPC分类号： C07C265/12 , C08G18/7664 , C08G2101/0008 , C08G2101/005 , C08G2101/0058
摘要： The present invention is directed to a novel isocyanate mixture and the use thereof in producing a flexible polyurethane foam. The polyisocyanate mixture comprises(a) from 73 to 77% by weight of methylene bis(phenylisocyanate), said methylene bis(phenylisocyanate) having an isomer content as follows:(i) from about 30 to about 34% by weight of the 2,4' isomer,(ii) from about 60 to about 66% by weight of the 4,4'-isomer, and(iii) from about 3 to about 7% by weight, the 2,2' isomer, the percent of said isomers totaling 100%,(b) from 23 to 27% by weight of higher functional methylene-bridged polyphenyl polyisocyanates, the percents of components (a) and (b) totaling 100%, and wherein said polyisocyanate mixture has an isocyanate group content of from about 30 to about 33.5 percent by weight.
摘要翻译：本发明涉及一种新的异氰酸酯混合物及其在制备柔性聚氨酯泡沫塑料中的用途。多异氰酸酯混合物包含（a）73至77重量％的亚甲基双（异氰酸苯酯），所述亚甲基双（异氰酸苯酯）具有如下异构体含量：（i）约30至约34重量％ 4'异构体，（ii）约60至约66重量％的4,4'-异构体，和（iii）约3至约7重量％的2,2'异构体，所述总共100％的异构体，（b）23至27重量％的高级官能亚甲基桥接的聚苯基多异氰酸酯，组分（a）和（b）的百分比总计为100％，其中所述多异氰酸酯混合物的异氰酸酯基团含量为约30至约33.5重量％。

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