公开(公告)号：EP0286015A3

公开(公告)日：1989-09-13

申请号：EP88105241.9

申请日：1988-03-31

Applicant: NORDSON CORPORATION

Inventor： Cobbs, Walter H., Jr. ,  Huddleston, Robert J. ,  Chung, Chan I. ,  Saidman, Laurence B.

IPC: B29B7/74

CPC classification number: B29B7/7433 ,  B29B7/44 ,  B29B7/481 ,  B29B7/86 ,  Y10S261/26

Abstract: Polymer materials having viscosities ranging from about 50,000 up to above 1,000,000 centipoises are mixed with a gaseous foaming agent to provide a polymer/gas solution under pressure such that when the polymer/gas solution is subsequently dispensed at atmospheric pressure the gas is released from the solution and becomes entrapped in the polymeric material to form a homogeneous polymer foam. Mixing is accomplished by force feeding the gas and polymeric material into and through a low energy input disk mixer (14) with a low pressure drop across the mixer such that premature foaming or reaction of the polymeric material is avoided. The disk mixer includes a tubular housing (22), one or more driven shafts (24, 26) extending along the length of the housing, and a series of disks (48) spaced along the shafts. The foaming gas enters into solution in the polymer in the compartments between the rotating disks. The process is characterized in that relatively high viscosity polymeric materials are mixed with gas and foamed with relatively low horsepower requirements, high throughput and low temperature rise of the polymer from conversion of the work of mixing to heat.

公开(公告)号：EP0089170A1

公开(公告)日：1983-09-21

申请号：EP83301241.2

申请日：1983-03-08

Applicant: NORDSON CORPORATION

Inventor： Cobbs, Walter H., Jr.

IPC: C09J5/06 ,  B05D1/26 ,  B32B7/14 ,  B65B51/04 ,  C09J3/16 ,  C09K19/38 ,  C08G63/60

CPC classification number: C08G63/60 ,  C09J5/06 ,  C09J167/00 ,  C09K19/3809 ,  Y10T428/1073 ,  Y10T428/24802

Abstract: A method of forming an adhesive bond comprising heating a thermoplastic, polymeric, thermotropic nematic liquid crystalline material until the material becomes fluid, and applying this material onto a substrate. Since the liquid crystalline material exhibits excellent tensile strength, the present method can be employed not only as an adhesive but also to strap articles and band a plurality of articles together.

公开(公告)号：EP0221388A3

公开(公告)日：1988-12-07

申请号：EP86113965

申请日：1986-10-08

Applicant: NORDSON CORPORATION

Inventor： Cobbs, Walter H., Jr.

IPC: B41M01/12

CPC classification number: B41M1/12

Abstract: The method of screen printing with a hot melt foam composition includes providing a screen having the desired pattern to be transferred to a substrate, casting onto the screen a hot melt foam composition and forcing the foam composition through the screen to form the described pattern on the substrate. The method offers a number of advantages including the transfer of large amounts of hot melt inks through the screen, fast printing speeds, print­ing with highly viscous polymeric or thermosetting materials and control of processing temperatures, among other advantages.

公开(公告)号：EP0286015A2

公开(公告)日：1988-10-12

申请号：EP88105241.9

申请日：1988-03-31

Applicant: NORDSON CORPORATION

Inventor： Cobbs, Walter H., Jr. ,  Huddleston, Robert J. ,  Chung, Chan I. ,  Saidman, Laurence B.

IPC: B29B7/74

CPC classification number: B29B7/7433 ,  B29B7/44 ,  B29B7/481 ,  B29B7/86 ,  Y10S261/26

Abstract: Polymer materials having viscosities ranging from about 50,000 up to above 1,000,000 centipoises are mixed with a gaseous foaming agent to provide a polymer/gas solution under pressure such that when the polymer/gas solution is subsequently dispensed at atmospheric pressure the gas is released from the solution and becomes entrapped in the polymeric material to form a homogeneous polymer foam. Mixing is accomplished by force feeding the gas and polymeric material into and through a low energy input disk mixer (14) with a low pressure drop across the mixer such that premature foaming or reaction of the polymeric material is avoided. The disk mixer includes a tubular housing (22), one or more driven shafts (24, 26) extending along the length of the housing, and a series of disks (48) spaced along the shafts. The foaming gas enters into solution in the polymer in the compartments between the rotating disks. The process is characterized in that relatively high viscosity polymeric materials are mixed with gas and foamed with relatively low horsepower requirements, high throughput and low temperature rise of the polymer from conversion of the work of mixing to heat.

Abstract translation: 将具有约50,000至高于1,000,000厘泊的粘度的聚合物材料与气态发泡剂混合以在压力下提供聚合物/气体溶液，使得当聚合物/气体溶液随后在大气压下分配时，气体从溶液中释放 并且被夹带在聚合物材料中以形成均匀的聚合物泡沫。 混合是通过将气体和聚合物材料通过混合器中低压降的低能量输入盘式混合器（14）强力供给来实现的，从而避免了聚合材料的过早发泡或反应。 盘式混合器包括管状壳体（22），沿着壳体的长度延伸的一个或多个从动轴（24,26）以及沿轴间隔开的一系列盘（48）。 发泡气体进入旋转盘之间的隔室中的聚合物溶液中。 该方法的特征在于，相对高粘度的聚合物材料与气体混合并以相对较低的马力要求发泡，聚合物的高通量和低温升高从混合工作转化为热。

公开(公告)号：EP0220450A1

公开(公告)日：1987-05-06

申请号：EP86112617.5

申请日：1986-09-12

Applicant: NORDSON CORPORATION

Inventor： Cobbs, Walter H., Jr. ,  Huddleston, Robert J.

IPC: B05B7/16 ,  B29B7/48 ,  B29C67/20 ,  B01F3/04 ,  B01F7/10 ,  B05D1/02 ,  C09J5/08 ,  C08J9/30

CPC classification number: B29B7/44 ,  B29B7/481 ,  B29B7/7433 ,  B29B7/86

Abstract: Polymer materials having viscosities ranging from 1,000 up to above 1,000,000 centipoises are mixed with a gaseous foaming agent to provide a polymer/gas solution under pressure such that when the polymer/gas solution is subsequently dispensed at atmospheric pressure the gas is released from the solution and becomes entrapped in the polymer material to form a homogeneous polymer foam. Mixing is accomplished by a disc mixer (14) which includes a tubular housing (22), a pair of substantially parallel, oppositely driven shafts (24,26) extending along the length of the housing (22), and a series of spaced, solid, flat discs (48) fixedly mounted on each shaft (24,26) perpendicular to the axis thereof. The discs (48) on one shaft (24) intermesh with the discs (48) on the other shaft (26) to form a series of compartments spaced along the length of the mixer (14). The foaming gas enters into solution in the polymer in the compartments between the rotating discs (48). The process is charac­terized in that relatively high viscosity polymer materials are foamed with relatively low horsepower requirements, high throughput and low temperature rise of the polymer from conversion of the work of mixing to heat.

Abstract translation: 将粘度范围为1,000至高于1,000,000厘泊的聚合物材料与气态发泡剂混合以在压力下提供聚合物/气体溶液，使得当聚合物/气体溶液随后在大气压下分配时，气体从溶液中释放出来， 被捕获在聚合物材料中以形成均匀的聚合物泡沫。 混合通过盘式混合器（14）实现，该盘式混合器包括管状壳体（22），沿着壳体（22）的长度延伸的一对基本平行的相对驱动的轴（24,26），以及一系列间隔开的， 固定地安装在垂直于其轴线的每个轴（24,26）上的固体扁平盘（48）。 一个轴（24）上的盘（48）与另一轴（26）上的盘（48）相互啮合，以形成沿混合器（14）的长度间隔开的一系列隔室。 发泡气体进入旋转盘（48）之间的隔室中的聚合物溶液中。 该方法的特征在于相对高粘度的聚合物材料以相对较低的马力要求发泡，聚合物的高通量和低温升高从混合工作转变成热。

公开(公告)号：EP0099727A2

公开(公告)日：1984-02-01

申请号：EP83304073.6

申请日：1983-07-13

Applicant: NORDSON CORPORATION

Inventor： Cobbs, Walter H., Jr. ,  Rehman, William R.

IPC: B05D7/02 ,  B05D5/02 ,  B05B9/00 ,  B05D5/00 ,  B05D1/00 ,  B05D1/02

CPC classification number: B05D1/002 ,  B05B9/00 ,  B05D1/02 ,  B05D2201/02 ,  Y10T428/1383 ,  Y10T428/31797

Abstract: A method and apparatus for the coating of a substrate such as a polyethylene terephthalate container with a gas barrier coating of a copolymer of vinylidene chloride is disclosed. The method includes locating the container to be coated in close proximity to one or more airless spray nozzles and impacting the outside surface of the container with a stream of a stabilized aqueous polymer dispersion such as an aqueous polyvinylidene chloride dispersion. The impacting force of the stable polyvinylidene chloride dispersion on the surface of the container is sufficient to cause selective destabilization of the dispersion at the surface interface to form a gel layer containing the polymer in the continuous phase. This gel layer serves as an adhesive layer for an overlying layer of the aqueous polymer dispersion as a continuous uniform coating. The resulting wet coating does not sag or run off. The coating on the container is then dried in a controlled atmosphere to complete the gel formation throughout its thickness whereupon it is further dried to remove the water from the coating and to collapse the get to form a film without distorting the container. The dried coating is smooth, uniform and uniformly transparent. In operation, the overspray can be collected and returned to achieve greater than 95% material efficiency.

Abstract translation: 公开了一种用于涂覆基材的方法和装置，例如具有偏二氯乙烯共聚物的阻气涂层的聚对苯二甲酸乙二醇酯容器。 该方法包括将待涂覆的容器定位在紧邻一个或多个无空气喷嘴并且用稳定的聚合物水分散体如聚偏二氯乙烯分散体水流冲击容器的外表面。 稳定的聚偏二氯乙烯分散体在容器表面上的冲击力足以引起表面界面处的分散体的选择性不稳定，从而在连续相中形成含有聚合物的凝胶层。 该凝胶层用作作为连续均匀涂层的聚合物水分散体的上覆层的粘合剂层。 所产生的湿涂层不会下垂或流失。 然后将容器上的涂层在受控的气氛中干燥以在其整个厚度上完成凝胶形成，然后进一步干燥以从涂层中除去水并使凝胶塌缩以形成膜而不使容器变形。 干燥的涂层光滑，均匀透明。 在操作中，可以收集和返回过量喷涂以达到95％以上的材料效率。

公开(公告)号：EP0220450B1

公开(公告)日：1989-03-22

申请号：EP86112617.5

申请日：1986-09-12

Applicant: NORDSON CORPORATION

Inventor： Cobbs, Walter H., Jr. ,  Huddleston, Robert J.

IPC: B05B7/16 ,  B29B7/48 ,  B29C67/20 ,  B01F3/04 ,  B01F7/10 ,  B05D1/02 ,  C09J5/08 ,  C08J9/30

CPC classification number: B29B7/44 ,  B29B7/481 ,  B29B7/7433 ,  B29B7/86

公开(公告)号：EP0089170B1

公开(公告)日：1986-06-11

申请号：EP83301241.2

申请日：1983-03-08

Applicant: NORDSON CORPORATION

Inventor： Cobbs, Walter H., Jr.

IPC: C09J5/06 ,  B05D1/26 ,  B32B7/14 ,  B65B51/04 ,  C09J3/16 ,  C09K19/38 ,  C08G63/60

CPC classification number: C08G63/60 ,  C09J5/06 ,  C09J167/00 ,  C09K19/3809 ,  Y10T428/1073 ,  Y10T428/24802

公开(公告)号：EP0044206A3

公开(公告)日：1984-05-02

申请号：EP81303168

申请日：1981-07-10

Applicant: NORDSON CORPORATION

Inventor： Cobbs, Walter H., Jr. ,  Huddleston, Robert J. ,  Smith, James C.

IPC: B29C27/02

CPC classification number: B29C65/10 ,  B29C66/003 ,  B29C66/1122 ,  B29C66/43 ,  B29C66/71 ,  B29C66/72328 ,  B29C66/73921 ,  B29C66/81241 ,  B29C66/8242 ,  B29C66/8266 ,  B29C66/8322 ,  B29K2995/0065 ,  B29K2023/06 ,  B29K2023/12 ,  B29K2023/0633

Abstract: Processes and apparatus for heat sealing materials together include the step of subjecting the materials to a sealing area providing a fluid bearing flow regime to produce a required heat, pressure and dwell time profile for sealing. A preferred embodiment includes a dual zone porous surface for supplying both heating and cooling fluids to the materials while they are subjected to a preferred pressure profile, thereby reducing tension in the softened or molten materials and reducing the time the materials must remain molten. The dual zone process may be used in different heat sealing flow regimes.

Abstract translation: 一起热封材料的方法和装置包括将材料经受提供流体轴承流动状态的密封区域以产生所需的热，压力和停留时间曲线用于密封的步骤。 优选的实施例包括双区域多孔表面，用于在加热和冷却流体经受优选的压力分布时将加热和冷却流体供应到所述材料中，从而减少软化或熔融材料中的张力，并减少材料必须保持熔融的时间。 双区过程可用于不同的热封流程。

公开(公告)号：EP0090606A2

公开(公告)日：1983-10-05

申请号：EP83301664.5

申请日：1983-03-24

Applicant: NORDSON CORPORATION

Inventor： Cobbs, Walter H., Jr. ,  Guldner, Robert A. ,  Huddleston, Robert J.

IPC: B05C11/10 ,  B05C15/00 ,  B01D53/14

CPC classification number: B01D53/14 ,  B05B14/00 ,  B05B14/49 ,  B05B16/90 ,  Y02P70/36

Abstract: A process for the recovery of solvent entrained in a water vapour laden exhaust gas stream exhausted from a spray painting system is disclosed. The process includes an oil absorption unit which absorbs and removes all but about 100 parts per million of the solvent from the exhaust gas stream while permitting air and water vapour to be vented from the system and a stripper which in turn removes all but about 0.001 mole fraction of any one solvent component trapped in the oil. The oil, which is substantially free of solvent, is returned to the absorption unit. The stripped solvent can then be condensed and reused by mixing it with the paint solids to be sprayed in the process; or, alternatively, it can be admitted as a vapour into the atmosphere surrounding a workpiece which is being coated in the spray painting system to raise the solvent humidity surrounding the workpiece to above about 70%. By raising the solvent humidity to above about 70% caking of paint on the interior surfaces of the spray booth, plugging of the paint spray nozzles, and rapid evaporation of solvent from the paint is reduced. The present process provides a means to recover and reuse even a complex mixture of solvents where the recovered solvent comprises a mixture of the same components in the same ratio as the solvent mixture originally used in the paint spray system. The system is described in relation to a continuous coater wherein parts to be coated move continuously through an enclosed paint spray area and are coated while the solvent laden atmosphere therein is exhausted from the coater for recovery of the solvent.

Abstract translation: 公开了一种用于回收从喷涂系统排出的含有蒸气的废气流中所携带的溶剂的回收方法。 该方法包括吸油单元，其吸收并除去来自废气流的大约100ppm的溶剂，同时允许空气和水蒸气从系统中排出，汽提器又除去大约0.001摩尔 捕获在油中的任何一种溶剂成分的分数。 基本上不含溶剂的油返回到吸收单元。 然后可以将汽提的溶剂通过将其与待喷涂的涂料固体混合而进行冷凝和重复使用; 或者，可以将其作为蒸汽进入周围的工件周围的气氛中，该工件正在喷涂系统中被涂覆以将工件周围的溶剂湿度提高到大约70％以上。 通过将溶剂湿度提高到喷雾室内表面上大约70％的油漆结块，涂料喷嘴的堵塞以及溶剂从油漆中的快速蒸发减少。 本方法提供了即使是复杂的溶剂混合物来回收和再利用的方法，其中回收的溶剂包含与原始在喷漆系统中使用的溶剂混合物相同比例的相同组分的混合物。 该系统涉及一种连续涂布机，其中待涂覆的部件连续移动通过封闭的涂料喷涂区域，并且在其中含有溶剂的气氛从涂布机中排出以回收溶剂的同时进行涂布。