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公开(公告)号：US5314749A
公开(公告)日：1994-05-24
申请号：US34006
申请日：1993-03-19
申请人： Gautam P. Shah
发明人： Gautam P. Shah
CPC分类号： B65D75/002 , B32B27/322 , Y10S428/91 , Y10T428/2826 , Y10T428/31913 , Y10T428/31928
摘要： A multiple layer shrink film with improved moisture barrier properties is oriented in the longitudinal and/or transverse directions, and comprises an internal layer comprising high density polyethylene, and outer layers each comprising olefinic polymer or copolymer. Intermediate polymeric adhesive layers can optionally be included in those coextruded embodiments which do not melt bond adequately in the absence of such intermediate layers.
摘要翻译： 具有改善的防潮性能的多层收缩膜在纵向和/或横向上定向，并且包括包含高密度聚乙烯的内层和各自包含烯属聚合物或共聚物的外层。 中间聚合物粘合剂层可以任选地包括在那些共挤出的实施方案中，其在不存在这种中间层的情况下不会充分熔融粘合。
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公开(公告)号：US5234547A
公开(公告)日：1993-08-10
申请号：US855808
申请日：1992-03-23
申请人： Paul Knight , Ulrich Welkener
发明人： Paul Knight , Ulrich Welkener
IPC分类号： D21H19/24 , B31F1/12 , C08G69/48 , C08G73/02 , D21H17/34 , D21H17/56 , D21H21/14 , D21H23/24 , D21H23/52 , D21H27/00
CPC分类号： B31F1/12 , C08G69/48 , C08G73/0286 , D21H17/34 , D21H21/146 , D21H17/56
摘要： A method of creping a paper is described which comprises applying to the creping drum prior to the application of the paper web to be creped, a synthetic anionic polymer.
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公开(公告)号：US5120574A
公开(公告)日：1992-06-09
申请号：US661364
申请日：1991-02-27
CPC分类号： C04B41/009 , C04B26/18 , C04B41/483 , C09D5/002 , C04B2111/00482 , C04B2111/00491
摘要： A process for applying and providing an enhanced polyester-based polymer concrete overlay on a porous substrate structure is provided. The process requires first applying a monomeric high-molecular weight acrylate- or methacrylate-based pretreatment composition to the substrate and then forming the polyester-based polymer concrete overlay over the treated substrate.
摘要翻译： 提供了一种在多孔基底结构上施加和提供增强的聚酯基聚合物混凝土覆层的方法。 该方法需要首先将单体高分子量的基于丙烯酸酯或甲基丙烯酸酯的预处理组合物施加到基材上，然后在经处理的基材上形成聚酯基聚合物混凝土覆盖层。
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84.发明授权
公开(公告)号：US5082878A
公开(公告)日：1992-01-21
申请号：US634780
申请日：1990-12-27
CPC分类号： C04B28/04 , C04B20/1051 , C04B20/1077 , C04B26/18 , C08L67/06 , C04B2103/58 , Y02W30/92
摘要： New shrinkage control agents, for unsaturated polyester resin systems, which are copolymers of vinyl versatate and vinyl acetate, i.e., poly(vinyl versatate-co-vinyl acetate). The shrink control agents are useful both with neat and filled unsaturated polyester resin systems. The shrink control agents are especially useful under conditions where the unsaturated polyester resin system is cured at or below ambient temperatures.
摘要翻译： 新的收缩控制剂，用于不饱和聚酯树脂体系，它们是叔碳酸乙烯酯和乙酸乙烯酯的共聚物，即聚（乙烯基叔碳酸酯 - 共 - 乙酸乙烯酯）。 收缩控制剂可用于纯净和不饱和聚酯树脂体系。 收缩控制剂在不饱和聚酯树脂体系在环境温度或低于环境温度下固化的条件下特别有用。
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85.发明授权Corrosion inhibiting hydraulic cement additives and compositions containing same 失效防腐水硬性水泥添加剂和含有它的组合物
公开(公告)号：US4946506A
公开(公告)日：1990-08-07
申请号：US404157
申请日：1989-09-07
申请人： Ahmad Arfaei , Neal S. Berke , Michael P. Dallaire , Maria Hicks
发明人： Ahmad Arfaei , Neal S. Berke , Michael P. Dallaire , Maria Hicks
CPC分类号： C04B24/2647 , C04B28/04 , E02F3/84 , C04B2103/12 , C04B2103/61
摘要： An additive combination for hydraulic cement compositions is provided which advantageously provides corrosion inhibition and set acceleration, in combination with a high level of fluidity and retention of fluidity over a desired period of time. The cement additive combination comprises an alkali or alkaline earth metal nitrite and a graft copolymer plasticizer comprising a polyether backbone and side chain polymers formed by polymerization of ethylenically unsaturated monomers.Fluid hydraulic cement compositions are further provided comprising these additive combinations.
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公开(公告)号：US20240343840A1
公开(公告)日：2024-10-17
申请号：US18682388
申请日：2022-08-08
发明人： Ping CAI , David M. ERDELT , John Dealon STANLEY
IPC分类号： C08F2/34 , C08F2/01 , C08F4/659 , C08F110/06
CPC分类号： C08F2/34 , C08F2/01 , C08F4/659 , C08F110/06
摘要： A process for increasing a settled bulk density of a granular polyolefin polymer includes feeding a catalyst stream into a gas phase polymerization reactor, the catalyst stream comprising catalyst particles, optionally in slurry form by suspending in a mineral oil and/or other hydrocarbon liquid, contained in a carrier fluid; feeding a support gas into the gas phase polymerization reactor together with the catalyst stream entering the reactor, the support gas being fed into the gas phase reactor at a velocity; forming polyolefin particles in the gas phase polymerization reactor through contact with the catalyst particles and a monomer and optionally one or more comonomers; and determining a settled bulk density of the granular polyolefin particles, and, based on the settled bulk density, selectively increasing or decreasing the velocity of the support gas in order to maintain the settled bulk density above a preset limit.
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公开(公告)号：US11999857B2
公开(公告)日：2024-06-04
申请号：US16618496
申请日：2018-06-01
发明人： Feng Gu
IPC分类号： C09C1/30 , C01B33/14 , C08K9/08 , C08L1/12 , C08L9/00 , C08L23/06 , C08L23/12 , C08L33/26 , C08L39/06 , C08L91/00 , C09D7/42
CPC分类号： C09C1/3072 , C01B33/14 , C08K9/08 , C08L1/12 , C08L9/00 , C08L23/06 , C08L23/12 , C08L33/26 , C08L39/06 , C08L91/00 , C09C1/3018 , C09C1/3027 , C09D7/42 , C01P2004/61 , C01P2006/12 , C01P2006/14 , C01P2006/62
摘要： Improved silica based matting agents are disclosed. The matting agents are useful in waterborne coatings composition to provide exceptional properties to a wood based substrate. Films resulting on the coated substrate unexpectedly provide improved chemical resistance, thermal stress resistance, weather resistance, and/or film clarity to the surface of a wood substrate. Methods of making and using the matting agents are also disclosed.
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88.发明公开公开(公告)号：US20240157335A1
公开(公告)日：2024-05-16
申请号：US18282491
申请日：2022-03-09
发明人： Keling ZHANG , Reno NGUYEN , Simon THOMAS
IPC分类号： B01J20/287 , B01D15/32 , B01J20/10 , B01J20/28 , B01J20/32 , C07C37/82 , C07D311/80
CPC分类号： B01J20/287 , B01D15/325 , B01J20/103 , B01J20/28004 , B01J20/28016 , B01J20/28061 , B01J20/28083 , B01J20/3204 , B01J20/3219 , B01J20/3259 , B01J20/3293 , C07C37/82 , C07D311/80 , B01J2220/52
摘要： A stationary phase for high-performance liquid chromatography including monofunctional primary silane functionalized silica provides improved separation performance for the preparative or process scale purification of cannabidiol (CBD) and tetrahydro-cannabinol (THC). Silica bonded with monofunctional primary silane(s) provides more efficient separation of these molecules through higher resolution values, reduced peak broadening and lower separation impedance, thus enabling higher purity product or more efficient purification process.
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公开(公告)号：US11945896B2
公开(公告)日：2024-04-02
申请号：US17761451
申请日：2020-09-10
发明人： Joseph Coalter, III , Rose Kent , Adam Marwitz , Ronald Epstein , Michael Elder
IPC分类号： C08F110/06 , C08F4/646 , C08F4/654
CPC分类号： C08F4/6541 , C08F4/6465 , C08F110/06
摘要： A Ziegler-Natta catalyst composition is disclosed. The catalyst composition includes an internal electron donor with improved polymerization kinetics, a long lifetime, improved stereoselectivity and/or improved hydrogen response.
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公开(公告)号：US11873355B2
公开(公告)日：2024-01-16
申请号：US16972863
申请日：2019-06-07
IPC分类号： C08F210/06 , C08F210/16 , C08K5/053 , C08K5/1575 , C08K5/5419 , C08L23/14 , C08L23/16
CPC分类号： C08F210/06 , C08F210/16 , C08K5/053 , C08K5/1575 , C08K5/5419 , C08L23/14 , C08L23/16 , C08L2203/30 , C08L2314/02
摘要： Propylene-ethylene copolymer compositions and production methods are provided. The copolymer compositions can be particularly advantageous for use in hot fill packaging of foodstuffs. The propylene-ethylene copolymers can be produced using a Ziegler-Natta catalyst and an alkoxysilane electron donor. The compositions can have propylene as a primary monomer with an ethylene content ranging from 2.0 to 6.0 percent by weight with a xylene soluble content of less than 7.0 percent by weight.
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