公开(公告)号：US20040201120A1

公开(公告)日：2004-10-14

申请号：US10768096

申请日：2004-02-02

申请人： LAFARGE NORTH AMERICA, INC.

发明人： Elizabeth Colbert

IPC分类号： B29C044/20 ,  B05D001/02 ,  B29C044/58

CPC分类号： C04B38/10 ,  B01F3/04446 ,  B01F5/043 ,  B28B19/0092 ,  B28C5/026 ,  B29C44/3446 ,  C04B28/14 ,  C04B40/0028

摘要： A method of manufacturing gypsum board includes applying compressed air to an input end of a tube, wherein the tube includes the input end, an output end, and a venturi located between the input end and the output end; admitting a foaming agent to the input end of the tube so as to form a mixture of the compressed air and the diluted foaming agent; passing the mixture through the venturi and out the output end; combining the mixture with gypsum and water to form a gypsum slurry; and casting the gypsum slurry onto a continuous web for forming a gypsum board.

摘要翻译： 制造石膏板的方法包括将压缩空气施加到管的输入端，其中管包括位于输入端和输出端之间的输入端，输出端和文丘里管; 允许发泡剂到管的输入端，以形成压缩空气和稀释发泡剂的混合物; 将混合物通过文氏管并输出出口端; 将混合物与石膏和水混合以形成石膏浆料; 并将石膏浆料浇注到用于形成石膏板的连续纤维网上。

公开(公告)号：US20040061252A1

公开(公告)日：2004-04-01

申请号：US10669679

申请日：2003-09-25

申请人： TOSHIBA KIKAI KABUSHIKI KAISHA

发明人： Akinori Ide ,  Takehiro Yamamoto

IPC分类号： B29C044/20 ,  B29C044/56 ,  B29C047/00 ,  B29C047/06 ,  B29C043/20

CPC分类号： B32B37/153 ,  B29C31/044 ,  B29C31/048 ,  B29C43/203 ,  B29C43/34 ,  B29C47/0019 ,  B29C47/0021 ,  B29C47/0047 ,  B29C47/0054 ,  B29C47/0066 ,  B29C47/065 ,  B29C47/16 ,  B29C2043/3433 ,  B29C2043/3438 ,  B29K2105/0067 ,  B29K2105/256 ,  B29L2009/00 ,  B32B38/12

摘要： Molten polymers are forced into T dies combined to form a multiple T die, the molten polymers are extruded through the T dies in monolayer. The monolayers extruded through the T dies are superposed and laminated outside the multiple T die while the polymers are in a molten or semi-molten state to form a intermediate molten multilayer. The multiple T die is advanced into a space between an open top half mold and a bottom half mold of a compression mold to deliver the intermediate multilayer onto the bottom half mold. The intermediate multilayer is cut to a predetermined length on the bottom half mold, and is processed for compression molding in the compression mold to form a multilayer article. A molding cycle for molding the multilayer article is carried out automatically at a remarkably improved manufacturing efficiency.

摘要翻译： 熔融的聚合物被强制成T组合以形成多个T模头，熔融的聚合物通过单层的T模挤出。 通过T模挤出的单层叠加并层叠在多个T模的外侧，同时聚合物处于熔融或半熔融状态以形成中间熔融多层。 多个T模具进入压缩模具的开放的上半模和下半模之间的空间，以将中间多层输送到下半模上。 将中间层叠体在下半模上切割成预定长度，并在压缩模具中进行压缩加工以形成多层制品。 以显着提高的制造效率自动进行用于成型多层制品的成型周期。

公开(公告)号：US20020117768A1

公开(公告)日：2002-08-29

申请号：US09792039

申请日：2001-02-26

发明人： Eino Laine ,  Kay Rokman ,  Hanna Rahiala ,  Jonathan George ,  Andrea Grosso

IPC分类号： B29C044/20

CPC分类号： D21F11/002

摘要： Disclosed is a method of producing a non-woven web of fibrous or particulate material comprising: formation of a foam slurry; deposition of that slurry onto a foraminous element having a three-dimensional mold; and formation of a web having a three-dimensional shape that is not substantially planar by removal of foam from the slurry through the foraminous element and drying the web. An apparatus therefor is also disclosed. The method may be used in production a variety of products, including automotive pleated fluid and air filters, pleated heating and/or air conditioning (HVAC) filters, shaped breathing mask filters and bacterial filters, laminated cleaning products with super-absorbent middle layers, such as a mop wipe shape to fit a cleaning mop head, and other products.

摘要翻译： 公开了一种生产纤维或颗粒材料的无纺网的方法，包括：形成泡沫浆料; 该浆料沉积到具有三维模具的多孔元件上; 以及通过通过有孔元件从浆料中除去泡沫并干燥纸幅，形成具有基本不平坦的三维形状的幅材。 还公开了一种其设备。 该方法可用于生产各种产品，包括汽车打褶液和空气过滤器，打褶加热和/或空调（HVAC）过滤器，成型呼吸面罩过滤器和细菌过滤器，具有超吸收性中间层的层压清洁产品， 如拖把擦拭形状，以适应清洁拖把头等产品。

公开(公告)号：US20040224141A1

公开(公告)日：2004-11-11

申请号：US10800501

申请日：2004-03-15

发明人： Kevin A. Seiling

IPC分类号： B29C044/20 ,  B29C059/04

CPC分类号： C08J9/0085 ,  B29C44/50 ,  B29C48/0017 ,  B29C48/0022 ,  B29C48/022 ,  B29C48/07 ,  B29C48/12 ,  B29C48/15 ,  B29C48/90 ,  B29C48/905 ,  B29C48/908 ,  B29C48/919 ,  B29K2105/06 ,  B29K2105/12 ,  C08J2201/03 ,  C08J2205/052 ,  C08J2327/06 ,  Y10T428/249924 ,  Y10T428/249953 ,  Y10T428/249976 ,  Y10T428/249986

摘要： A composite plank (146) having a curved bottom surface (154) made by the method wherein a feed mixture of thermoplastic polymer material and glass fibers are provided to an extruder (10). The extruder compresses the feed mixture to form a thermoplastic/glass melt in the presence of a blowing agent. The melt is extruded through a die (26) to form a strand or extruded length (110) that is further shaped and cooled in an array of calibrators (112). A cutter (142) severs sections of the extruded length (110) to form planks (146).

摘要翻译： 一种具有弯曲底面（154）的复合板（146），其通过以下方法制成，其中将热塑性聚合物材料和玻璃纤维的进料混合物提供到挤出机（10）。 挤出机在发泡剂存在下压缩进料混合物以形成热塑性/玻璃熔体。 将熔体通过模具（26）挤出以形成在校准器（112）阵列中进一步成型和冷却的股线或挤出长度（110）。 切割器（142）切割挤出长度（110）的部分以形成板条（146）。

公开(公告)号：US20030094718A1

公开(公告)日：2003-05-22

申请号：US10278453

申请日：2002-10-23

发明人： Berthold Droege ,  Nick King ,  Frank Van Lueck

IPC分类号： B29C044/20

CPC分类号： B29C48/834 ,  B29C35/16 ,  B29C48/022 ,  B29C48/023 ,  B29C48/07 ,  B29C48/08 ,  B29C48/37 ,  B29C48/38 ,  B29C48/387 ,  B29C48/395 ,  B29C48/70 ,  B29C48/83 ,  B29C48/911 ,  B29C48/92 ,  B29C2948/92019 ,  B29C2948/92209 ,  B29C2948/9238 ,  B29C2948/92514 ,  B29C2948/9259 ,  B29C2948/92704 ,  B29C2948/92876 ,  B29C2948/92885 ,  B29K2105/04

摘要： The invention relates to an extrusion plant for manufacturing foam products such as foamed sheets, foamed boards and foamed profiles, and consists of one melting extruder minimum to melt and homogenise the plastic material and a minimum of two parallel cooling units to cool down the plastic melt prior to extrusion through a die. According to the invention it is planned that the minimum of two parallel cooling units are used that may or may not be identical or that can be controlled by control means so that the expelled plastic melt from these units may or may not have the same material properties.

摘要翻译： 本发明涉及一种用于制造发泡片材，泡沫板和发泡型材的泡沫产品的挤出设备，并且由最少一个熔融挤出机组成，以熔化和均化塑料材料和至少两个平行的冷却单元以冷却塑料熔体 在挤出通过模具之前。 根据本发明，计划使用两个平行冷却单元的最小值，其可以是或可以不相同或可以由控制装置控制，使得来自这些单元的排出的塑料熔体可以具有或可以不具有相同的材料性质 。

公开(公告)号：US20020180084A1

公开(公告)日：2002-12-05

申请号：US09773206

申请日：2001-01-31

发明人： Bruce W. Peterson ,  Theodore J. Bartsch

IPC分类号： B29C044/20

CPC分类号： B29C44/005 ,  B29C44/28

摘要： Methods and apparatus for eliminating or reducing a surface skin when producing a flexible polyurethane foam slab are disclosed. The top surface of the chemically reactive polyurethane foaming mixture is heated during and/or after the foaming mixture expands. The heating preferably is conducted so as to prevent a significant temperature gradient from forming between the internal temperature of the foaming mixture and the top surface of that mixture. Preferably, heat is applied so as to heat from the top surface of the foaming mixture in an escalating fashion to higher temperatures as the foam is conveyed along a conveying path away from the foaming mixture dispensing device.

摘要翻译： 公开了在制造柔性聚氨酯泡沫板时消除或减少表面皮肤的方法和装置。 在发泡混合物膨胀期间和/或之后，化学反应性聚氨酯发泡混合物的顶表面被加热。 优选进行加热，以防止在发泡混合物的内部温度和该混合物的顶部表面之间形成显着的温度梯度。 优选地，当泡沫沿着远离发泡混合物分配装置的输送路径输送时，施加热量以便以更高的方式从发泡混合物的顶表面加热到更高的温度。

公开(公告)号：US20020125598A1

公开(公告)日：2002-09-12

申请号：US09800959

申请日：2001-03-08

发明人： Kuei Yung Wang Chen

IPC分类号： B29C044/20

CPC分类号： C08J9/0085 ,  B29C44/50 ,  C08J2327/06

摘要： Structural members for doors and the like can be manufactured from plastic foamed composites containing wood flour by the steps of (1) dry mixing a blend of powders including PVC powder, wood flour, powdered thermal stabilizers, powdered foaming agent and a powdered gelatinization agent, (2) adding the mixed powder to a thermal stirring mixer to obtain a homogeneous dispersion of the several powders (3) transferring the homogeneous dispersion of powders to a cold stirring mixer and stirring at speeds sufficient to avoid agglomeration of the homogeneous dispersion of the several powders and (4) placing the non-agglomerated homogeneous dispersion of the several powders in a feeding hopper of an extrusion machine and extruding shapes for the desired components. The vacuum venting of the extrusion machine can be controlled to achieve components with more desirable surface features. Lubricants can be added to the homogeneous dispersions of the several powders to aid in the extrusion process.

摘要翻译： 用于门等的结构构件可以由含有木粉的塑料发泡复合材料制成，步骤为（1）干混合包括PVC粉末，木粉，粉末热稳定剂，粉末发泡剂和粉末糊化剂的粉末混合物， （2）将混合粉末加入到热搅拌混合器中以获得均匀分散的几种粉末（3），将均匀的粉末分散体转移到冷却的搅拌混合器中，并以足以避免几种 粉末和（4）将几种粉末的非团聚的均匀分散体放置在挤出机的进料斗中并挤出所需组分的形状。 可以控制挤出机的真空排气以实现具有更理想的表面特征的部件。 可以将润滑剂加入到几种粉末的均匀分散体中以有助于挤出过程。

公开(公告)号：US20020096797A1

公开(公告)日：2002-07-25

申请号：US10034254

申请日：2002-01-03

申请人： WAVIN B.V

发明人： Jan Uilke Stoffelsma ,  Johan Gons ,  Hans Overeijnder

IPC分类号： B29C044/02 ,  B29C044/20

CPC分类号： B29C44/348 ,  B29K2105/046 ,  C08J9/04 ,  C08J2201/03 ,  C08J2205/052

摘要： The invention relates to a method for forming an article comprising closed-cell microfoam from thermoplastic, wherein at least one molten thermoplastic comprising a foaming agent is subjected under pressure to a forming operation and, after the pressure has been at least partially released is cooled, wherein the amount of foaming agent is substantially identical to the amount corresponding to that quantity of gas released by the foaming agent which is comprised by a close-packed structure of the foam cells having a specific foam-cell diameter, substantially uniform throughout the foam, at the pressure prevailing during cool-down. The use of a nucleating agent is beneficial, and in the method according to the invention the concentration thereof proves to be a determining factor for the mean foam-cell diameter.

摘要翻译： 本发明涉及一种用于从热塑性塑料制成包含闭孔微泡沫的制品的方法，其中至少一种包含发泡剂的熔融热塑性塑料在压力下经受成型操作，并且在压力至少部分释放之后被冷却， 其中发泡剂的量基本上等于由发泡剂释放的气体量所组成的量，该发泡剂由具有特定泡沫泡孔直径的密泡沫结构构成，整个泡沫体基本均匀， 在冷静下的压力。 使用成核剂是有益的，并且在本发明的方法中，其浓度被证明是平均泡沫细胞直径的决定因素。

公开(公告)号：US20030209827A1

公开(公告)日：2003-11-13

申请号：US10299897

申请日：2002-11-20

发明人： Guido Levera ,  Pasquale De Michele

IPC分类号： B29C044/20

CPC分类号： B29C39/148 ,  B29C33/0033 ,  B29C33/36 ,  B29C33/424 ,  B29C43/222 ,  B29C44/30 ,  B29K2021/00 ,  B29L2031/737 ,  B29L2031/751

摘要： Plant (1) for manufacturing a latex foam layer of unlimited length and having lower (9) and upper (10) recesses. A plurality of laying planes (15) provided with lower protuberances proceeds between an injection station (3) and a layer removing station (5). Foam provided with lower recesses (9) is directed towards a vulcanizer staying between the injecting station (3) and the removing station. A plurality of upper plates (31), each of them provided with protuberances (33), is lowered, one by one, on the foam layer to impress upper recesses before the foam layer enters the vulcanizer. The plates (31), placed on the foam layer, have their ends shaped in such a way to avoid completely any penetration of steam condensation drops. Upper plates release their weight to fixed supports (17, 18) of the planes (15) to which they are bound until they leave the vulcanizer. The coming back of the plates from the extraction station (35) towards the new cycle of moulding (34) is independent of the operating system (19) of the planes (15).

摘要翻译： 用于制造无限长度的具有下（9）和上（10）凹槽的胶乳泡沫层的装置（1）。 设置有下突起的多个铺设平面（15）在喷射站（3）和层移除站（5）之间进行。 设置有下凹部（9）的泡沫指向停留在注射站（3）和移除站之间的硫化器。 在泡沫层上，一个接一个地将多个上板（31）设置有突起（33），以便在泡沫层进入硫化器之前对上凹部进行压印。 放置在泡沫层上的板（31）的端部成形为避免蒸汽冷凝液滴完全渗透。 上板将它们的重量释放到与它们结合的平面（15）的固定支撑件（17,18）上，直到它们离开硫化器。 从提取站（35）向新的成型循环（34）返回的板独立于平面（15）的操作系统（19）。

公开(公告)号：US20030138515A1

公开(公告)日：2003-07-24

申请号：US10338993

申请日：2003-01-09

申请人： GENPAK LLC

发明人： Walter R. Harfmann

IPC分类号： B29C044/60 ,  B29C044/20

CPC分类号： B29C44/348 ,  B29C44/462

摘要： An annular die designed to produce polymer foam using only one or more ambient gasses as a blowing agent includes an exiting channel with an exit having a cross-sectional area between about two and about ten times that of a smallest point within the exit channel. The section of the die from the smallest point to the exit is thermally isolated from the rest of the die, and the temperature thereof is independently controlled. In addition, the interior surface of the exit channel is coated with a friction-reducing coating.