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1. 发明授权

US4828890A Method for increasing bleed resistance of preserved plants and products of the method 失效
标题翻译：提高保存植物和产品的抗渗性的方法
公开(公告)号：US4828890A
公开(公告)日：1989-05-09
申请号：US182674
申请日：1988-04-18
申请人： George T. Tiedeman , David W. Park , Robert H. Young
发明人： George T. Tiedeman , David W. Park , Robert H. Young
IPC分类号： A01N3/00 , A01N3/02
CPC分类号： A01N3/00
摘要： The present invention is a method of preserving plants which achieves reduced bleeding of the preservative material when the plants are subjected to elevated humidity conditions. The method comprises perfusing the plants with an aqueous preservative composition in which the preservative is primarily an alkylene oxide oligomer, 1,3-butanediol, or 1,4-butanediol. Preferred alkylene oxide oligomers are di- and polyethylene glycols in the molecular weight range of about 200-1500 and di- and polypropylene glycols with an average molecular weight below about 450. The preferred materials may be used with lesser amounts of secondary humectant materials selected from glycerol, ethylene glycol, propylene glycol, magnesium chloride or magnesium bromide hexahydrate, and water soluble cycle phosphonate esters. Plants are conventionally treated by perfusing an aqeous treatment solution into the vascular system through a cut stem or other incision which exposes the xylem. Treatment is carried out at a temperature in the range of 20.degree.-50.degree. C. at a relative humidity in the range of about 20%-80% for a period time up to about 14 days.

2. 发明授权

US08617692B2 Moisture resistant container 有权
标题翻译：防潮容器
公开(公告)号：US08617692B2
公开(公告)日：2013-12-31
申请号：US12635741
申请日：2009-12-11
申请人： Terry M. Grant , David W. Park
发明人： Terry M. Grant , David W. Park
IPC分类号： B32B29/06 , B32B29/08
CPC分类号： D21H27/10 , D21H21/18 , D21H21/20 , D21H27/30 , Y10T156/1025 , Y10T428/1303 , Y10T428/24479 , Y10T428/24554 , Y10T428/24694 , Y10T428/24942 , Y10T428/31942 , Y10T428/31949 , Y10T428/31953 , Y10T428/31967 , Y10T428/31993
摘要： A sheet of cellulose based material having enhanced strength, particularly the dry strength, substantially unaffected repulpability is disclosed. The sheet of cellulose based materials generally includes a first cellulose based material connected with a second cellulose base material element. The first cellulose based material is formed by separating a portion of the fiber from a furnish, treating the separated portion with a cationic wet strength resin which is allowed to bond to the fiber. The treated fiber is then mixed with the untreated balance of the fiber at some point before the paper machine. The fiber that is separated may be secondary fiber, virgin fiber or combinations thereof. The second cellulose base material element is substantially free from any treatment. The second cellulose base material element may be include substantially all untreated fibers.
摘要翻译：公开了一种具有增强的强度，特别是干强度的基本上未受影响的再浆化的纤维素基材料。纤维素基材料片通常包括与第二纤维素基材元件连接的第一纤维素基材料。第一种基于纤维素的材料是通过从配料中分离纤维的一部分而形成的，用允许粘合到纤维上的阳离子湿强度树脂处理分离的部分。然后将处理的纤维与造纸机之前的某一点与纤维的未处理平衡物混合。被分离的纤维可以是二次纤维，原始纤维或其组合。第二纤维素基材元素基本上没有任何处理。第二纤维素基材元素可以包括基本上所有未处理的纤维。

3. 发明授权

US5436069A Surfaced cellulose composite panel and panel forming method 失效
标题翻译：浮雕纤维素复合板和面板成型方法
公开(公告)号：US5436069A
公开(公告)日：1995-07-25
申请号：US110338
申请日：1993-08-23
申请人： Jack G. Winterowd , David W. Park , J. Harry Wirz , Roland E. Kreibich , Roger M. Shantz , Timit Ghermay , Charles C. Childress
发明人： Jack G. Winterowd , David W. Park , J. Harry Wirz , Roland E. Kreibich , Roger M. Shantz , Timit Ghermay , Charles C. Childress
IPC分类号： B27N7/00 , E04C2/10 , B32B5/20
CPC分类号： B27N7/005 , E04C2/10 , Y10T428/249959 , Y10T428/249987 , Y10T428/249989 , Y10T428/31989
摘要： A method of producing a surfaced composite panel of cellulosic particulates, such as wood flakes, involves the application of polymer forming foamable material to at least one of the first and second major surfaces of the panel, contacting said at least one of the first and second surfaces with a pressure applying surface to apply pressure thereto, foaming the polymer forming foamable material while pressure is applied and curing the applied foam material to produce a polymeric coating on the panel with the desired surface, which is typically extremely smooth. One or both surfaces may be surface treated in this manner. A skin formed on the surface of the panel is believed to add to the strength and stiffness of the coating on the panel. A wide variety of foaming systems may be used to accomplish this surface treating. By avoiding sanding the surface treated panel, the skin remains intact. The resulting panel, in addition to being extremely smooth as desired, resists water penetration when subjected to water or high humidity conditions. The resulting panel is receptive to adhesives for purposes of securing overlaying materials such as vinyl, reduces formaldehyde emissions when a panel formed of the resin which emits formaldehydes is surface treated.
摘要翻译：生产纤维素颗粒如木屑的表面复合板的方法涉及将聚合物形成可发泡材料施加到面板的第一和第二主表面中的至少一个上，使所述第一和第二表面中的至少一个接触具有压力施加表面以施加压力的表面，在施加压力的同时使聚合物形成发泡材料，并固化所施加的泡沫材料，以在面板上产生具有期望表面的聚合物涂层，其通常非常光滑。一个或两个表面可以以这种方式进行表面处理。认为在面板表面上形成的皮肤增加了面板上涂层的强度和刚度。可以使用各种发泡系统来完成该表面处理。通过避免打磨表面处理的面板，皮肤保持原样。除了根据需要非常光滑之外，所得到的面板在经受水或高湿度条件时抗水渗透。所得到的面板接受粘合剂，以便确保覆盖材料例如乙烯基，当由发出甲醛的树脂形成的面板进行表面处理时，减少甲醛释放。

4. 发明授权

US5280097A Laminated composites of polyurea-cellulose and methods for their manufacture 失效
标题翻译：聚脲纤维素层压复合材料及其制造方法
公开(公告)号：US5280097A
公开(公告)日：1994-01-18
申请号：US895376
申请日：1992-06-08
申请人： Frank R. Hunter , James F. L. Lincoln , David W. Park
发明人： Frank R. Hunter , James F. L. Lincoln , David W. Park
IPC分类号： B32B27/04 , C08G18/08 , C08G18/30 , C08G18/76 , C08J7/04 , C08K5/1565 , C08L97/02 , D21H17/57 , D21H27/30 , C08H5/04 , B32B21/06 , B32B21/14 , B32B23/04
CPC分类号： C08J7/047 , B32B27/04 , C08G18/0852 , C08G18/302 , C08G18/7664 , C08K5/1565 , C08L97/02 , D21H17/57 , D21H27/30 , C08J2461/00 , C08J2467/00 , Y10T428/31978 , Y10T428/31982 , Y10T428/31986 , Y10T428/31989
摘要： A laminated product has an organic polymer layer on at least one surface of a substrate of cellulosic material impregnated with polyisocyanate. The substrate is preferably made from substantially delignified cellulosic material and an isocyanate resin. The isocyanate resin comprises a polyisocyanate, preferably PMDI, and may include a miscible organic solvent, preferably one such as propylene carbonate having a high boiling point and low flammability and toxicity. The substrate may be cured with an uncured overlay sheet positioned on the cured substrate and then cured to bond the substrate and overlay. Alternatively, a cured overlay may be adhesively or otherwise secured to a previously cured substrate. As yet another alternative, an uncured overlay sheet and uncured substrate may be placed in position and simultaneously cured. An overlay may be positioned on one or both major surfaces of a substrate sheet.
摘要翻译：叠层产品在浸渍有多异氰酸酯的纤维素材料的基材的至少一个表面上具有有机聚合物层。基材优选由基本上脱木素的纤维素材料和异氰酸酯树脂制成。异氰酸酯树脂包括多异氰酸酯，优选PMDI，并且可以包括可混溶的有机溶剂，优选一种如具有高沸点和低可燃性和毒性的碳酸亚丙酯。基材可以用位于固化的基底上的未固化的覆盖片固化，然后固化以粘合基底和覆盖层。或者，固化的覆盖层可以粘合地或以其他方式固定到预先固化的基底。作为另一替代方案，未固化的覆盖片和未固化的基底可以被放置就位并且同时固化。覆盖层可以位于基片的一个或两个主表面上。

5. 发明授权

US08383784B2 Lignothermoplastic 有权
标题翻译：木质素
公开(公告)号：US08383784B2
公开(公告)日：2013-02-26
申请号：US12551388
申请日：2009-08-31
申请人： David W. Park , Amar N. Neogi , Ludwig Furtner, Jr.
发明人： David W. Park , Amar N. Neogi , Ludwig Furtner, Jr.
IPC分类号： C07G1/00 , C08H7/00 , C08L97/00
CPC分类号： C07G1/00
摘要： A thermoplastic material made from lignin, polyol and a melting point reducer where the melting point reducer is miscible in the specific polyol employed and where the lignin, polyol and melting point reducer are all miscible when in their melted state.
摘要翻译：由木质素，多元醇和熔点降低剂制成的热塑性材料，其中熔点降低剂在所用的特定多元醇中是可混溶的，其中木质素，多元醇和熔点降低剂在熔融状态下都是可混溶的。

6. 发明授权

US08142526B2 Artificial fire log 有权
标题翻译：人造火灾日志
公开(公告)号：US08142526B2
公开(公告)日：2012-03-27
申请号：US12551301
申请日：2009-08-31
申请人： David W. Park , Amar N. Neogi , Ludwig Furtner, Jr.
发明人： David W. Park , Amar N. Neogi , Ludwig Furtner, Jr.
IPC分类号： C10L11/00
CPC分类号： C10L5/44 , C10L5/365 , Y02E50/10 , Y02E50/30
摘要： Artificial fire logs made from non-petrochemical based, renewable materials are described. These artificial fire logs perform substantially equivalent to existing commercial fire logs. The artificial fire logs are made from cellulosic materials, a lignin containing composition and a non-petroleum based wax where the lignin containing composition comprises lignin and 1,3-propanediol derived from a renewable resource.
摘要翻译：描述了由非石油化学的可再生材料制成的人造火源。这些人造火灾记录基本上等同于现有的商业防火记录。人造防火材料由纤维素材料，含木质素组合物和非石油基蜡制成，其中含木质素的组合物包含衍生自可再生资源的木质素和1,3-丙二醇。

7. 发明申请

US20100163198A1 High-Yield Paper and Methods of Making Same 审中-公开
标题翻译：高产量纸及其制作方法
公开(公告)号：US20100163198A1
公开(公告)日：2010-07-01
申请号：US12346690
申请日：2008-12-30
申请人： Michael J. Dougherty , Amar N. Neogi , David W. Park , Brian S. Delgardno
发明人： Michael J. Dougherty , Amar N. Neogi , David W. Park , Brian S. Delgardno
IPC分类号： D21H19/00
CPC分类号： D21H11/00 , D21H11/10 , D21H19/385
摘要： A method of making a high-yield paper sheet generally includes blending a pulp mixture including at least about 50 weight percent mechanical pulp, making an uncoated paper sheet from the pulp mixture, applying a surface layer to the paper sheet, the surface layer including nPCC, and drying the sheet, wherein the basis weight of the dried sheet is in the range of about 24 to about 60 pounds.
摘要翻译：制备高产率纸张的方法通常包括混合包含至少约50重量％机械纸浆的纸浆混合物，从纸浆混合物制备未涂布的纸张，将表面层施加到纸张上，所述表面层包括nPCC ，并干燥片材，其中干燥片材的基重在约24至约60磅的范围内。

8. 发明授权

US06996342B2 Control system for an agile optical network 有权
公开(公告)号：US06996342B2
公开(公告)日：2006-02-07
申请号：US09974907
申请日：2001-10-12
申请人： David W. Park , Lisa M. Gaen , Gerard L. Swinkels
发明人： David W. Park , Lisa M. Gaen , Gerard L. Swinkels
IPC分类号： H04J14/00 , H04B10/08 , H04B17/00 , H04B10/02 , H04B10/12
CPC分类号： H04J14/0227 , H04J14/0241 , H04J14/0284 , H04Q11/0062 , H04Q2011/0073 , H04Q2011/0083 , H04Q2011/0086
摘要： A control system for an agile optical network uses constraint-based rules to minimize route validation computations required when the network is reconfigured. A hierarchical control structure facilitates admission control and insulates admission control from interaction with the physical layer of the network.

9. 发明授权

US06569279B1 Method for bonding composite wood products 失效
标题翻译：复合木制品粘接方法
公开(公告)号：US06569279B1
公开(公告)日：2003-05-27
申请号：US09562362
申请日：2000-05-01
申请人： David W. Park , Richard E. Wagner , Ronald C. Wilderman
发明人： David W. Park , Richard E. Wagner , Ronald C. Wilderman
IPC分类号： B32B3120
CPC分类号： C09J5/06 , B27N3/002 , B27N3/203 , B32B37/06 , B32B37/1207 , B32B2310/0806 , B32B2310/12 , B32B2317/16 , C09J2400/303
摘要： A method for bonding composite wood products comprises using a PMDI adhesive modified with a polar compound such as a lower alkylene carbonate or triacetin with a combination of conductive thermal heat and radio frequency energy. Propylene carbonate is a preferred modifier. Press temperatures and pressing times may be significantly reduced from those using either unmodified PMDI adhesives or the modified adhesives without radio frequency energy. Laminated veneer products 38 mm in thickness can be pressed at 110°-120° C. in as little as 7 minutes using radio frequency energy at a level of about 32 kw/m2.
摘要翻译：用于粘合复合木制品的方法包括使用具有导电热热和射频能量的组合的用极性化合物如低级亚烷基碳酸酯或三醋精改性的PMDI粘合剂。碳酸丙烯酯是优选的改性剂。使用未经改性的PMDI胶粘剂或未经射频能量的改性粘合剂，压力温度和压制时间可能会显着降低。 38毫米厚的层压胶合板产品可以使用射频能量约为32千瓦/平方米，以110°-120℃压制7分钟。

10. 发明授权

US5830320A Method of enhancing strength of paper products and the resulting products 失效
标题翻译：提高纸制品及其产品强度的方法
公开(公告)号：US5830320A
公开(公告)日：1998-11-03
申请号：US718103
申请日：1996-09-18
申请人： David W. Park , Frank R. Hunter
发明人： David W. Park , Frank R. Hunter
IPC分类号： D21H23/04 , D21H11/14 , D21H17/55 , D21H21/20
CPC分类号： D21H21/20 , D21H17/55 , D21H23/04
摘要： The invention is a method of enhancing the strength of paper products, particularly the dry strength, without adversely affecting repulpability. It is also directed to the resulting products. It is particularly applicable but not limited to products with significant amounts of secondary fiber in the furnish. Preferably, about 10-30% of the fiber is separated from the furnish at some point prior to sheeting. This is treated with a cationic wet strength resin which is allowed to bond to the fiber. Cationic polyamide-epichlorohydrin resins are particularly useful. The treated fiber is them mixed with the untreated balance of the fiber at some point before the paper machine. Screnning fines on repulping do not normally exceed 2-3%.
摘要翻译：本发明是提高纸制品的强度，特别是干强度的方法，而不会不利地影响纸浆的再浆化性。它也针对所产生的产品。特别适用于但不限于在配料中具有大量二次纤维的产品。优选地，约10-30％的纤维在成片之前的某一时刻与配料分离。用阳离子湿强度树脂处理，使其与纤维结合。阳离子聚酰胺 - 表氯醇树脂特别有用。处理过的纤维在造纸机之前的某个时刻与纤维的未处理平衡物混合。罚款罚款通常不超过2-3％。

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