专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

11. 发明授权

US06436231B1 Method and apparatus for crosslinking individualized cellulose fibers 失效
标题翻译：用于交联个体化纤维素纤维的方法和设备
公开(公告)号：US06436231B1
公开(公告)日：2002-08-20
申请号：US08509401
申请日：1995-07-31
申请人： Peter A. Graef , Colin Elston , Fred E. Olmstead , Clifford R. Bolstad , Mark W. Bowns , Frank R. Hunter , Allan R. Carney
发明人： Peter A. Graef , Colin Elston , Fred E. Olmstead , Clifford R. Bolstad , Mark W. Bowns , Frank R. Hunter , Allan R. Carney
IPC分类号： D21C900
CPC分类号： A61F13/15707 , A61F13/53 , A61F2013/530007 , A61F2013/530474 , A61L15/28 , D04H1/54 , D04H1/655 , D06M11/30 , D06M13/137 , D06M13/1845 , D06M13/192 , D06M13/262 , D06M13/418 , D06M13/419 , D06M13/432 , D06M13/438 , D06M13/44 , D06M13/52 , D21B1/066 , D21C9/005 , D21H11/20 , D21H15/10 , D21H17/05 , D21H17/06 , D21H17/07 , D21H17/10 , D21H21/06 , D21H21/24 , D21H23/04 , D21H23/18 , D21H23/20 , D21H23/28 , D21H25/005 , D21H25/02 , C08L1/02
摘要： An apparatus is disclosed for preparing a quantity of individual treated fibers from one or more fiber mats. The apparatus comprises a fiber treatment zone, and a conveyor for conveying each mat through the fiber treatment zone. In the treatment zone each mat is impregnated by an applicator with a treatment material, such as a crosslinking substance, and conveyed directly to an attrition device. The attrition device fiberizes the mats to form a fiber output having a low nit level, such as no more than about three, and a dryer both dries the fiber output and cures the crosslinking substance. The fiberizer is configured to minimize the accumulation of fiber at locations therein. Fiber is transported from the attrition device to the dryer at a high velocity under reduced pressure to promote drying. A heated retention bin is provided after drying to increase curing time in the system. A thermobonding agent may be added to the dried and cured fibers to enhance the wet strength of webs made from the fiber.
摘要翻译：公开了一种用于从一个或多个纤维垫制备一批单独处理的纤维的装置。该设备包括纤维处理区和用于将每个垫传送通过纤维处理区的输送机。在处理区中，每个垫通过涂布器用诸如交联物质的处理材料浸渍，并直接输送到磨耗装置。磨耗装置使垫子纤维化以形成具有低nit水平（例如不超过约3个）的纤维输出，并且干燥器既干燥纤维输出并固化交联物质。纤维化器被配置为使纤维在其中的位置处的聚集最小化。纤维在减压下以高速度从磨耗装置输送到干燥器以促进干燥。在干燥后提供加热的保存箱，以增加系统中的固化时间。可以将热粘合剂添加到干燥和固化的纤维中，以增强由纤维制成的织物的湿强度。

12. 发明授权

US5437418A Apparatus for crosslinking individualized cellulose fibers 失效
标题翻译：用于交联个体化纤维素纤维的装置
公开(公告)号：US5437418A
公开(公告)日：1995-08-01
申请号：US820323
申请日：1992-01-13
申请人： Peter A. Graef , Colin Elston , Fred E. Olmstead , Clifford R. Bolstad , Mark W. Bowns , Frank R. Hunter , Allan R. Carney
发明人： Peter A. Graef , Colin Elston , Fred E. Olmstead , Clifford R. Bolstad , Mark W. Bowns , Frank R. Hunter , Allan R. Carney
IPC分类号： A61F13/15 , A61L15/28 , D04H1/58 , D04H1/64 , D06M11/30 , D06M13/137 , D06M13/184 , D06M13/192 , D06M13/262 , D06M13/418 , D06M13/419 , D06M13/432 , D06M13/438 , D06M13/44 , D06M13/52 , D21B1/06 , D21C9/00 , D21H11/20 , D21H15/10 , D21H17/05 , D21H17/06 , D21H17/07 , D21H17/10 , D21H21/06 , D21H21/24 , D21H23/04 , D21H23/18 , D21H23/20 , D21H23/28 , D21H25/00 , D21H25/02 , B02C11/08
CPC分类号： A61F13/15707 , A61F13/53 , A61L15/28 , D04H1/54 , D04H1/655 , D06M11/30 , D06M13/137 , D06M13/1845 , D06M13/192 , D06M13/262 , D06M13/418 , D06M13/419 , D06M13/432 , D06M13/438 , D06M13/44 , D06M13/52 , D21B1/066 , D21C9/005 , D21H11/20 , D21H15/10 , D21H17/05 , D21H17/06 , D21H17/07 , D21H17/10 , D21H21/06 , D21H21/24 , D21H23/04 , D21H23/18 , D21H23/20 , D21H23/28 , D21H25/005 , D21H25/02 , A61F2013/530007 , A61F2013/530474
摘要： An apparatus is disclosed for preparing a quantity of individual treated fibers from one or more fiber mats. The apparatus comprises a fiber treatment zone, and a conveyor for conveying each mat through the fiber treatment zone. In the treatment zone each mat is impregnated by an applicator with a treatment material, such as a crosslinking substance, and conveyed directly to an attrition device. The attrition device fiberizes the mats to form a fiber output having a low nit level, such as no more than about three, and a dryer both dries the fiber output and cures the crosslinking substance. The fiberizer is configured to minimize the accumulation of fiber at locations therein. Fiber is transported from the attrition device to the dryer at a high velocity under reduced pressure to promote drying. A heated retention bin is provided after drying to increase curing time in the system. A thermobonding agent may be added to the dried and cured fibers to enhance the wet strength of webs made from the fiber.
摘要翻译：公开了一种用于从一个或多个纤维垫制备一批单独处理的纤维的装置。该设备包括纤维处理区和用于将每个垫传送通过纤维处理区的输送机。在处理区中，每个垫通过涂布器用诸如交联物质的处理材料浸渍，并直接输送到磨耗装置。磨耗装置使垫子纤维化以形成具有低nit水平（例如不超过约3个）的纤维输出，并且干燥器既干燥纤维输出并固化交联物质。纤维化器被配置为使纤维在其中的位置处的聚集最小化。纤维在减压下以高速度从磨耗装置输送到干燥器以促进干燥。在干燥后提供加热的保存箱，以增加系统中的固化时间。可以将热粘合剂加入到干燥和固化的纤维中，以增强由纤维制成的织物的湿强度。

13. 发明授权

US06969781B2 Reticulated absorbent composite 失效
公开(公告)号：US06969781B2
公开(公告)日：2005-11-29
申请号：US09141152
申请日：1998-08-27
申请人： Peter A. Graef , Fred B. Howard
发明人： Peter A. Graef , Fred B. Howard
IPC分类号： A61F13/53 , A61F5/44 , A61F13/15 , A61F13/49 , B32B5/02 , D21H11/20 , A61F13/20
CPC分类号： A61F13/5323 , A61F13/534 , A61F13/53747 , A61F13/5376 , A61F2013/15406 , A61F2013/15422 , A61F2013/530051 , A61F2013/53051 , A61F2013/53765
摘要： An absorbent composite (10) having a fibrous matrix that includes absorbent material is disclosed. The fibrous matrix defines voids (14) and passages between the voids, which are distributed throughout the composite. Absorbent material (18) is located within some of the voids (14). Absorbent material located in these voids is expandable into the void. In a preferred embodiment, the composite's fibrous matrix includes resilient and matrix fibers (16). The composite optionally includes a wet strength agent.

14. 发明授权

US5252275A Method of densifying crosslinked fibers 失效
标题翻译：增稠交联纤维的方法
公开(公告)号：US5252275A
公开(公告)日：1993-10-12
申请号：US665761
申请日：1991-03-07
申请人： Rolland F. Sultze , Fred B. Howard , Peter A. Graef
发明人： Rolland F. Sultze , Fred B. Howard , Peter A. Graef
IPC分类号： A61F13/15 , A61L15/28 , D04H1/54 , D21H25/00 , B29C59/00
CPC分类号： A61F13/53 , A61F13/15707 , A61L15/28 , D04H1/54 , D21H25/005 , A61F2013/530007 , A61F2013/530474 , Y10S428/913 , Y10T442/60 , Y10T442/696
摘要： A method is disclosed for the densification of crosslinked fibers having a crosslinking agent loading level of from about 2.5 molar to about 5 molar %. The crosslinked fibers are compressed from an initial density of from about 0.02 g/cc to about 0.04 g/cc to a second density of from about 0.20 g/cc to about 1.00 g/cc by either the simultaneous or sequential application of heat and pressure. The surface temperature of the press is typically between about 60.degree. C. to about 180.degree. C. The compression force for the air laid or wet laid webs is in the range of about 800 psi to about 115,000 psi. Densifying the crosslinked fiber in this manner produces a compressed web having enhanced absorbent capacities of from about 21 g/g to about 15 g/g.
摘要翻译：公开了一种交联剂负载量为约2.5摩尔至约5摩尔％的交联纤维致密化的方法。通过同时或顺序施加热和压力将交联纤维从约0.02g / cc至约0.04g / cc的初始密度压缩至约0.20g / cc至约1.00g / cc的第二密度。压力机的表面温度通常在约60℃至约180℃之间。空气铺设或湿式铺设幅材的压缩力在约800psi至约115,000psi的范围内。以这种方式对交联纤维进行致密的冷却，产生具有约21g / g至约15g / g的增强的吸收能力的压缩纤维网。

15. 发明授权

US06962645B2 Reticulated absorbent composite 失效
标题翻译：网状吸收复合材料
公开(公告)号：US06962645B2
公开(公告)日：2005-11-08
申请号：US10294807
申请日：2002-11-13
申请人： Peter A. Graef , Fred B. Howard
发明人： Peter A. Graef , Fred B. Howard
IPC分类号： A61F13/53 , A61F5/44 , A61F13/15 , A61F13/49 , B32B5/02 , D21H11/20 , D21H21/22
CPC分类号： A61F13/5323 , A61F13/534 , A61F13/53747 , A61F13/5376 , A61F2013/15406 , A61F2013/15422 , A61F2013/530051 , A61F2013/53051 , A61F2013/53765
摘要： An absorbent composite (10) having a fibrous matrix that includes absorbent material is disclosed. The fibrous matrix defines voids (14) and passages between the voids, which are distributed throughout the composite. Absorbent material (18) is located within some of the voids (14). Absorbent material located in these voids is expandable into the void. In a preferred embodiment, the composite's fibrous matrix includes resilient and matrix fibers (16). The composite optionally includes a wet strength agent.
摘要翻译：公开了一种具有包括吸收材料的纤维基质的吸收性复合材料（10）。纤维基质定义空隙（14）和空隙之间的通道，其分布在整个复合材料中。吸收材料（18）位于一些空隙（14）内。位于这些空隙中的吸收材料可扩展到空隙中。在优选的实施方案中，复合材料的纤维基质包括弹性和基质纤维（16）。复合材料任选地包括湿强度剂。

16. 发明授权

US5324575A A densified absorbent web of cross-linked high-bulk fiber 失效
标题翻译：交联的高松散纤维的致密的吸收性网
公开(公告)号：US5324575A
公开(公告)日：1994-06-28
申请号：US67703
申请日：1993-05-26
申请人： Rolland F. Sultze , Fred B. Howard , Peter A. Graef
发明人： Rolland F. Sultze , Fred B. Howard , Peter A. Graef
IPC分类号： A61F13/15 , A61L15/28 , D04H1/54 , D21H25/00 , D03D3/00
CPC分类号： A61F13/53 , A61F13/15707 , A61L15/28 , D04H1/54 , D21H25/005 , A61F2013/530007 , A61F2013/530474 , Y10S428/913 , Y10T442/60 , Y10T442/696
摘要： A method is disclosed for the densification of crosslinked fibers having a crosslinking agent loading level of from about 2.5 molar to about 5 molar %. The crosslinked fibers are compressed from an initial density of from about 0.02 g/cc to about 0.04 g/cc to a second density of from about 0.20 g/cc to about 1.00 g/cc by either the simultaneous or sequential application of heat and pressure. The surface temperature of the press is typically between about 60.degree. C. to about 180.degree. C. The compression force for the air laid or wet laid webs is in the range of about 800 psi to about 115,000 psi. Densifying the crosslinked fiber in this manner produces a compressed web having enhanced absorbent capacities of from about 21 g/g to about 15 g/g.
摘要翻译：公开了一种交联剂负载量为约2.5摩尔至约5摩尔％的交联纤维致密化的方法。通过同时或顺序施加热和压力将交联纤维从约0.02g / cc至约0.04g / cc的初始密度压缩至约0.20g / cc至约1.00g / cc的第二密度。压力机的表面温度通常在约60℃至约180℃之间。空气铺设或湿式铺设幅材的压缩力在约800psi至约115,000psi的范围内。以这种方式对交联纤维进行致密的冷却，产生具有约21g / g至约15g / g的增强的吸收能力的压缩纤维网。

17. 发明授权

US5225047A Crosslinked cellulose products and method for their preparation 失效
标题翻译：交联纤维素产品及其制备方法
公开(公告)号：US5225047A
公开(公告)日：1993-07-06
申请号：US395208
申请日：1989-08-17
申请人： Peter A. Graef , Frank R. Hunter
发明人： Peter A. Graef , Frank R. Hunter
IPC分类号： A61F13/15 , D21H11/20 , D21H17/06 , D21H17/07 , D21H17/09 , D21H17/10 , D21H17/15 , D21H21/06 , D21H21/14 , D21H21/24 , D21H23/14 , D21H23/18 , D21H23/28
CPC分类号： D21H21/06 , D21H11/20 , D21H17/06 , D21H17/07 , D21H17/09 , D21H17/10 , D21H17/15 , D21H21/14 , D21H21/24 , D21H23/14 , D21H23/18 , D21H23/28 , A61F2013/530007 , A61F2013/530474
摘要： The invention is a method of making a wet formed, sheeted, readily reslurriable sheeted crosslinked cellulose and the products made by the method. Crosslinked wood pulp fibers tend to be quite brittle. If crosslinked while in sheeted form, the sheets cannot be readily defibered, either in a wet or dry state, without serious fiber degradation. The sheet products of the present invention can be easily redispersed or repulped in water without significant fiber breakage. The present products are made by including within the sheet, while still in wet form, a debonding or softening agent which is preferably added before the latent crosslinking reactant. Most preferably the debonder is added prior to the headbox of a paper machine and the crosslinking reactant is applied near the end of the forming wire or at the press section. The treated sheet is dried conventionally. Crosslinking may occur entirely during drying or during a period of additional heating, usually at a temperature in excess of 100.degree. C. for a short period of time. Conventional debonding agents and crosslinking reactants are suitable. The softening agent apparently reduces or prevents adhesive bonding between adjacent fibers caused by polymer formation external to the fiber under reaction conditions.
摘要翻译：本发明是一种制成湿成型，片状，易于再生的片状交联纤维素和通过该方法制备的产品的方法。交联的木浆纤维往往是相当脆的。如果以片状形式交联，则在湿或干的状态下，片材不能容易地脱纤维，而不会严重的纤维降解。本发明的片状产品可以容易地再分散或重新分配在水中而不会明显的纤维断裂。本产品通过在片状物中包含湿态形式，优选在潜在交联反应剂之前加入的脱粘剂或软化剂制成。最优选地，脱纸器在造纸机的流浆箱之前添加，并且交联反应物被施加在成形丝的端部附近或在压榨部分处。经处理的片材是常规干燥的。交联可能在干燥期间或在额外加热期间完全发生，通常在超过100℃的温度下短时间内完成。常规脱粘剂和交联反应物是合适的。在反应条件下，柔软剂明显降低或防止由纤维外部的聚合物形成引起的相邻纤维之间的粘结。

18. 发明授权

US5562740A Process for preparing reduced odor and improved brightness individualized, polycarboxylic acid crosslinked fibers 失效
标题翻译：用于制备减少气味和改善亮度的方法单独的多元羧酸交联纤维
公开(公告)号：US5562740A
公开(公告)日：1996-10-08
申请号：US490793
申请日：1995-06-15
申请人： Jeffery T. Cook , Walter D. Daniels , Pedro A. Rodriguez , Peter A. Graef , Clifford R. Bolstad , William L. Duncan
发明人： Jeffery T. Cook , Walter D. Daniels , Pedro A. Rodriguez , Peter A. Graef , Clifford R. Bolstad , William L. Duncan
IPC分类号： A61F13/53 , A61F5/44 , A61F13/15 , A61F13/472 , A61F13/49 , A61L15/24 , A61L15/28 , A61L15/46 , D06M11/38 , D06M11/50 , D06M13/02 , D06M13/192 , D06M13/207 , D06M101/06 , D21C9/00 , D21H11/20 , D21H13/06 , D21H21/22
CPC分类号： A61L15/46 , A61L15/24 , A61L15/28 , D06M11/38 , D06M11/50 , D06M13/192 , D06M13/207 , D21C9/005 , A61L2300/11
摘要： Disclosed is a process for making reduced odor individualized, crosslinked fibers which includes the steps of providing cellulosic fibers, contacting the fibers with a solution containing a C.sub.2 -C.sub.9 polycarboxylic acid crosslinking agent, mechanically separating the fibers into substantially individual form, drying the fibers and reacting the crosslinking agent with the individualized fibers to form intrafiber crosslink bonds. The individualized cellulosic fibers are then contacted with a strong alkaline solution and strong oxidizing agent to reduce the odor and increase the brightness. Preferably, the crosslinking agent is citric acid, and preferably, between about 1.0 weight % and about 12.0 weight % of the crosslinking agent reacts to form the intrafiber crosslink bonds. Preferably, the alkaline solution is an aqueous solution of sodium hydroxide, and preferably, about 0.09 weight % of the sodium hydroxide, on a dry fiber weight basis, is applied to the crosslinked fibers. Preferably, the oxidizing agent is hydrogen peroxide, and preferably, about 0.04 weight % of the hydrogen peroxide, on a dry fiber weight basis, is applied to the crosslinked fiber. The reduced odor individualized, crosslinked fibers are useful in a variety of absorbent structure applications.
摘要翻译：公开了一种制备减少气味的个体化交联纤维的方法，其包括以下步骤：提供纤维素纤维，使纤维与含有C 2 -C 9多元羧酸交联剂的溶液接触，将纤维机械分离成基本上单独的形式，干燥纤维和使交联剂与各自的纤维反应形成纤维内交联键。然后将个体化纤维素纤维与强碱性溶液和强氧化剂接触以降低气味并增加亮度。优选地，交联剂是柠檬酸，并且优选约1.0重量％至约12.0重量％的交联剂反应以形成纤维内交联键。优选地，碱性溶液是氢氧化钠的水溶液，优选将基于干纤维重量的约0.09重量％的氢氧化钠施加到交联纤维上。优选地，氧化剂是过氧化氢，优选地，基于干纤维重量的约0.04重量％的过氧化氢施加到交联纤维上。减少的气味个性化的交联纤维可用于各种吸收结构应用。

19. 发明授权

US5253815A Fiberizing apparatus 失效
标题翻译：纤维化设备
公开(公告)号：US5253815A
公开(公告)日：1993-10-19
申请号：US607312
申请日：1990-10-31
申请人： Mark W. Bowns , Fred E. Olmstead , Peter A. Graef , Clifford R. Bolstad
发明人： Mark W. Bowns , Fred E. Olmstead , Peter A. Graef , Clifford R. Bolstad
IPC分类号： D21B1/06 , D21D1/32 , B02C13/04 , B02C13/12
CPC分类号： D21B1/066 , D21D1/32
摘要： A fiberizer is described having a rotor to which plural hammers are mounted for fiberizing a sheet of fibers delivered to the rotor as the rotor is rotated. A feed mechanism utilizing a pair of seal rollers, at least one of which is driven, is configured for effective delivery of both wet or dry sheets to the fiberizer. The hammers are configured to minimize dead spaces within the fiberizer. In addition, air flow is directed through the fiberizer to minimize accumulations of fibers therein. Furthermore, an optional liquid flushing mechanism is provided for periodically cleaning the fiberizer during use.
摘要翻译：描述了一种纤维化器，其具有转子，多个锤安装成用于使转子旋转时输送到转子的纤维片纤维化。使用一对密封辊（其中至少一个被驱动）的进给机构构造成有效地将湿纸张或干纸张传送到纤维化器。锤被配置成最小化纤维化器内的死空间。此外，空气流引导通过纤维化器以最小化其中纤维的积聚。此外，提供了可选的液体冲洗机构，用于在使用期间周期性地清洁纤维化器。

20. 发明授权

US4853086A Hydrophilic cellulose product and method of its manufacture 失效
标题翻译：亲水纤维素产品及其制造方法
公开(公告)号：US4853086A
公开(公告)日：1989-08-01
申请号：US941461
申请日：1986-12-15
申请人： Peter A. Graef
发明人： Peter A. Graef
IPC分类号： A61L15/28 , D21C9/00 , D21H17/06 , D21H23/28
CPC分类号： D21H23/28 , A61L15/28 , D21C9/005 , D21H17/06
摘要： The present invention is a method of making a resilient hydrophilic cellulosic pulp particularly suitable for conversion into an absorbent fluff for products such as disposable diapers. The process involves treating a wet or partially dried cellulosic fiber web with an aqueous solution of a glycol and dialdehyde. Glyoxal and propylene glycol are preferred materials. These are desirable sprayed on a wet or only partially dried sheet at some convenient location on a conventional paper machine. This location is not critical, but a point about midway through the press section has given excellent results. The treated sheet is then dried conventionally. There is no need for the use of any catalysts or for a prolonged curing step at elevated temperatures. The products of the invention are characterized by a much increased absorbency rate and by a somewhat higher water holding capacity. The sheets also require less power for milling into a fibrous fluff. Knots or fiber clumps are reduced and there is no significant increase in fiber fines due to embrittlement of the treated pulp product. The invention further includes the products made using the present method.
摘要翻译：本发明是一种制备弹性亲水性纤维素纸浆的方法，特别适用于将产品如一次性尿布转化成吸收性绒毛。该方法包括用二醇和二醛的水溶液处理湿的或部分干燥的纤维素纤维网。乙二醛和丙二醇是优选的材料。这些需要在常规造纸机上的一些方便的位置喷涂在湿的或仅部分干燥的片材上。这个位置并不重要，但通过新闻部分的中间点已经取得了很好的成果。然后将经处理的片材经常干燥。在升高的温度下不需要使用任何催化剂或延长固化步骤。本发明的产品的特征在于吸收速率大大提高，保水能力更高。片材也需要更少的功率来铣削成纤维绒毛。结节或纤维团被减少，并且由于处理过的纸浆产品的脆化，纤维细粉没有显着增加。本发明还包括使用本方法制造的产品。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式