公开(公告)号：US4204086A

公开(公告)日：1980-05-20

申请号：US661875

申请日：1976-02-27

申请人： Fumio Suzuki

发明人： Fumio Suzuki

IPC分类号： B29C44/32 ,  H01B13/06 ,  H01B13/24 ,  B29D27/00 ,  B29F3/10

CPC分类号： H01B13/24 ,  B29C44/322 ,  H01B13/067 ,  Y10S264/05

摘要： In a process for producing a highly expanded polyolefin insulated coaxial cable comprising the steps of feeding a polyolefin, a nucleating agent and a volatile liquid as a blowing agent to an extruder and heat extruding said mixture through said extruder onto an inner conductor passing through said extruder to cover the outer periphery of said inner conductor thereby forming an insulation layer of a highly expanded polyolefin foam having a foaming ratio in excess of 2.5 times (60% expansion degree), the improvement which includes the step of, after extruding the foaming polyolefin mixture around said inner conductor, sizing the outer surface of said foaming polyolefin layer on said inner conductor by means of a sizing die to provide a highly expanded uniform polyolefin insulation layer of a predetermined size, said insulation layer being tightly adhered to said inner conductor.

摘要翻译： 在制造高度膨胀的聚烯烃绝缘同轴电缆的方法中，包括以下步骤：将聚烯烃，成核剂和作为发泡剂的挥发性液体加入到挤出机中，并将所述混合物通过所述挤出机热挤出到通过所述挤出机的内导体 覆盖所述内部导体的外周，由此形成发泡率超过2.5倍（膨胀度为60％）的高度发泡的聚烯烃泡沫的绝缘层，包括在挤出发泡聚烯烃混合物之后的步骤的改进 围绕所述内部导体，通过尺寸模具对所述内部导体上的所述发泡聚烯烃层的外表面进行定径，以提供具有预定尺寸的高度膨胀的均匀聚烯烃绝缘层，所述绝缘层紧密地粘附到所述内部导体。

公开(公告)号：US4203815A

公开(公告)日：1980-05-20

申请号：US886580

申请日：1978-03-14

申请人： Yoichiro Noda ,  Michio Matsumura ,  Norio Chiba ,  Masahito Hata

发明人： Yoichiro Noda ,  Michio Matsumura ,  Norio Chiba ,  Masahito Hata

IPC分类号： B01J19/08 ,  B29C44/00 ,  B29C47/88 ,  C08J9/06 ,  B01J1/10 ,  B29D27/00

CPC分类号： B01J19/081 ,  B29C44/56 ,  B29C47/0019 ,  B29C47/0021 ,  B29C47/8805 ,  C08J9/06 ,  Y10S264/05 ,  Y10S264/18

摘要： A process for producing a crosslinked and foamed resin sheet which comprises shaping a resinous mixture comprising a thermoplastic synthetic resin and a heat-decomposable blowing agent into a sheet form, applying a high-energy ionizing radiation to the resulting foamable resin sheet to crosslink the resin sheet, and then heating the resulting crosslinked foamable resin sheet to the decomposition temperature of the blowing agent or to a higher temperature; wherein the high-energy ionizing radiation has a range of at least 0.7 .rho.d g/cm.sup.2 in which d is the thickness in cm of the foamable resin sheet, and .rho. is the density in g/cm.sup.3 of the foamable resin sheet, and a low-energy ionizing radiation with a range of not more than 0.6 .rho.d g/cm.sup.2 in which d and .rho. are as defined is applied to the foamable resin sheet before, during or after the application of the high-energy ionizing radiation.

摘要翻译： 一种生产交联和发泡树脂片的方法，包括将包含热塑性合成树脂和热分解发泡剂的树脂混合物成型为片状，向所得到的可发泡树脂片施加高能电离辐射以交联树脂 然后将得到的交联发泡性树脂片加热至发泡剂的分解温度或升温; 其中高能电离辐射具有至少0.7rho dg / cm 2的范围，其中d是可发泡树脂片的厚度（cm），rho是发泡树脂片的密度（g / cm3），低 在施加高能电离辐射之前，期间或之后，将能量d电离辐射，其中d和rho定义为不超过0.6立方厘米/厘米2的范围。

公开(公告)号：US4192638A

公开(公告)日：1980-03-11

申请号：US904220

申请日：1978-05-19

申请人： Gerard Lezier ,  Bernard Vasseur

发明人： Gerard Lezier ,  Bernard Vasseur

IPC分类号： B29C33/04 ,  B29C33/38 ,  B29C44/58 ,  B29D27/00

CPC分类号： B29C44/3426 ,  B29C44/445 ,  B29C33/04 ,  B29C33/38 ,  B29C33/3814 ,  B29K2025/00

摘要： A mold for polystyrene has two spaced dies receiving the polystyrene therebetween. The wall of each die has two superposed independent chambers, one a heating chamber and the other a cooling chamber adjacent the die surface. Passages from the heating chamber pass through the cooling chamber and through the die surface and do not communicate with the cooling chamber. The opening of the passages in the die surface may be partially closed by nozzles.

摘要翻译： 用于聚苯乙烯的模具具有两个间隔的模具，其间接收聚苯乙烯。 每个模具的壁具有两个叠置的独立室，一个是加热室，另一个是与模具表面相邻的冷却室。 来自加热室的通道通过冷却室并通过模具表面，并且不与冷却室连通。 模具表面中的通道的打开可以被喷嘴部分地封闭。

公开(公告)号：US4189456A

公开(公告)日：1980-02-19

申请号：US737514

申请日：1976-11-01

申请人： Anders R. Rausing

发明人： Anders R. Rausing

IPC分类号： B29C35/08 ,  B29C44/02 ,  B29C44/04 ,  B29C44/06 ,  B29C44/50 ,  B29C67/00 ,  B31B3/74 ,  B32B27/32 ,  B65D8/08 ,  B65D71/08 ,  B65D81/02 ,  B29D27/00 ,  B29D7/02 ,  B29D7/20 ,  B29D25/00

CPC分类号： B65D11/22 ,  B29C44/0407 ,  B29C67/0014 ,  B29C2035/0822 ,  B29K2105/04 ,  B29L2009/00 ,  B29L2031/712

摘要： The walls which form a packing container are made from an extruded polystyrene foam plastic material which is stiffened along variously positioned rectilinear zones in the surface by effecting an increase in thickness of the plastic along those zones. The foamed plastic material is initially of uniform thickness during formation of the container but those zones of the walls which are to be thickened have a higher cell density factor than the remaining portions of the walls and hence a higher latent expansion capacity which, after the container has been formed, is released by heating to such an extent that the cell walls soften and are expanded by the increased gas pressure within them. The foamed plastic packing material is formed by extrusion through a die and is of uniform thickness. The desired zones of higher density are established in the material by subjecting those zones to a cooling operation.

摘要翻译： 形成包装容器的壁由挤出的聚苯乙烯泡沫塑料材料制成，其通过沿着这些区域增加塑料的厚度而在表面上沿着各种定位的直线区域加固。 泡沫塑料材料在形成容器期间最初具有均匀的厚度，但是要加厚的壁的那些区域具有比壁的其余部分更高的泡孔密度因子，因此具有较高的潜在膨胀能力，其在容器 已经形成，通过加热释放到使细胞壁软化并通过其内的增加的气体压力而膨胀的程度。 发泡塑料包装材料通过模头挤出形成并具有均匀的厚度。 通过使这些区域进行冷却操作，在材料中建立了较高密度的期望区域。

公开(公告)号：US4181694A

公开(公告)日：1980-01-01

申请号：US538253

申请日：1975-01-03

申请人： Yasuo Hashino ,  Masatsugu Yoshino ,  Hitoshi Sawabu ,  Tsugio Konno

发明人： Yasuo Hashino ,  Masatsugu Yoshino ,  Hitoshi Sawabu ,  Tsugio Konno

IPC分类号： B01D71/42 ,  D01D5/24 ,  B01D31/00 ,  B29D27/00

CPC分类号： B01D71/42 ,  B01D61/18 ,  B01D63/021 ,  D01D5/24 ,  Y10T428/2975

摘要： Hollow fibers of acrylonitrile polymers having water-permeability greater than 0.2 ml/cm.sup.2.min.atm and useful as an inexpensive superior ultrafilter, comprising(1) a porous layer or layers existing on the outer or/and inner sides of said hollow fibers, the average sizes of pores contained in said porous layer or layers and existing on each of assumptive cylindrical surfaces concentric with the central axis of said hollow fibers, having such a gradient that the average sizes of pores contained in the porous layer existing on the outer side become smaller toward the outer surface of said hollow fibers while the average sizes of pores contained in the porous layer existing on the inner side become smaller toward the inner surface of said hollow fibers, and(2) a reticulate porous layer adjacent to said porous layer or layers (1) and containing therein at least one succession of voids having diameters of at least 10-50 .mu., are prepared by dissolving an acrylonitrile polymer in an aqueous solution of nitric acid of 65-95% by weight concentration and extruding the resulting spinning solution through a die for hollow fibers, into a coagulation bath containing water or an aqueous solution of nitric acid of 30% by weight or less concentration.

摘要翻译： 具有大于0.2ml / cm2.min.atm的透水性的丙烯腈聚合物的中空纤维并且可用作廉价的超级超滤器，其包括（1）存在于所述中空纤维的外侧或内侧的多孔层， 包含在所述多孔层中并且存在于与所述中空纤维的中心轴同心的每个假想圆柱形表面上的孔的平均尺寸具有这样的梯度，使得存在于外侧的多孔层中包含的孔的平均尺寸 朝向所述中空纤维的外表面变小，而存在于内侧的多孔层中包含的孔的平均尺寸朝向所述中空纤维的内表面变小，和（2）与所述多孔层相邻的网状多孔层 或层（1）并且在其中容纳至少一个具有至少10-50μm直径的空隙的连续孔，通过将丙烯腈聚合物溶解在水 65-95重量％浓度的硝酸溶液，并将得到的纺丝溶液通过中空纤维用模头挤出到含有30重量％以下浓度的水或硝酸水溶液的凝固浴中。

公开(公告)号：US4180631A

公开(公告)日：1979-12-25

申请号：US778282

申请日：1977-03-16

申请人： Toshio Yukuta ,  Takashi Ohashi ,  Minoru Kojima ,  Masumi Saito

发明人： Toshio Yukuta ,  Takashi Ohashi ,  Minoru Kojima ,  Masumi Saito

IPC分类号： B29C43/00 ,  B29B7/00 ,  B29C39/00 ,  B29C39/38 ,  B29C39/42 ,  B29C43/02 ,  B29C51/00 ,  B29C59/00 ,  B29C67/20 ,  C08G18/00 ,  C08G18/38 ,  C08G18/54 ,  C08G18/65 ,  C08J9/02 ,  C08G18/32 ,  B29D27/00

CPC分类号： C08G18/3829 ,  C08G18/544 ,  Y10S521/903

摘要： The flexible polyurethane foams having high flame resistance and smoke resistance can be produced by reacting a polyhydroxyl compound and a polyisocyanate with a urea derivative selected from the group consisting of(a) a compound represented by the general formula ##STR1## wherein at least one of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 represents hydroxylalkyl, alkoxyalkyl, alkyl and aryl groups and the remainder represents hydrogen atom, and(b) a urea-formaldehyde condensation product in the presence of a catalyst, a surfactant and a blowing agent.These polyurethane foams can easily provide the favorable foam sheets by compression-molding these foams under heating.

摘要翻译： 具有高阻燃性和耐烟性的柔性聚氨酯泡沫体可以通过使多羟基化合物和多异氰酸酯与选自以下的脲衍生物反应制备：（a）由通式“IMAGE”表示的化合物，其中至少一种 R 1，R 2，R 3和R 4表示羟基烷基，烷氧基烷基，烷基和芳基，其余表示氢原子，和（b）在催化剂，表面活性剂和发泡剂存在下的脲 - 甲醛缩合产物。 这些聚氨酯泡沫可以通过在加热下对这些泡沫进行压缩成型而容易地提供有利的泡沫片材。

公开(公告)号：US4173608A

公开(公告)日：1979-11-06

申请号：US839453

申请日：1977-10-05

申请人： Joel Soulier

发明人： Joel Soulier

IPC分类号： B29C59/00 ,  B29C44/00 ,  B29C44/34 ,  B29C67/00 ,  C08J9/16 ,  B29D27/00 ,  H05B9/06

CPC分类号： B29C44/3461 ,  Y10S264/09

摘要： The present invention provides an apparatus for the manufacture of pre-expanded particles, which comprises in combination a heat-insulated resonating cavity, with a high-frequency electromagnetic source of energy, a ferrite circulater, a wave guide, an Archimedes screw for the introduction of the plastics material to be pre-expanded, a pump for regulating the feed of polar liquid and a device for extracting the pre-expanded particles. The present invention provides also a process for the pre-expansion of particles of plastic material using said apparatus.

摘要翻译： 本发明提供了一种用于制造预发泡颗粒的装置，其包括热绝缘谐振腔，高频电磁能源，铁氧体循环器，波导管，用于引入的阿基米德螺丝 预先膨胀的塑料材料，用于调节极性液体进料的泵和用于提取预发泡颗粒的装置。 本发明还提供了使用所述装置预先膨胀塑料材料的颗粒的方法。

公开(公告)号：US4167612A

公开(公告)日：1979-09-11

申请号：US916745

申请日：1978-06-19

申请人： Richard B. C. Tucker ,  Roland N. Fracalossi ,  Mark T. Wajer

发明人： Richard B. C. Tucker ,  Roland N. Fracalossi ,  Mark T. Wajer

IPC分类号： C08G18/40 ,  C08G18/63 ,  C08G18/65 ,  B29D27/00 ,  C08G18/14 ,  C08G18/32

CPC分类号： C08G18/6558 ,  C08G18/4072 ,  C08G18/632 ,  C08G2101/0008 ,  C08G2101/0083 ,  C08G2340/00 ,  Y10S521/914

摘要： Flexible polyurethane foams having low resistance to air flow and, in addition, having good load bearing characteristics and high strength comprising the reaction product of polyisocyanate, a polyol blend including about 40-60 percent by weight of a polyether triol having an average molecular weight of about 4500-6500 and about 60-40 percent by weight of a reinforced polymer polyol having an average molecular weight of about 4500-5500 for the base polyol, and a low molecular weight cross-linking agent, such as 1,4-cyclohexanedimethanol or 4,4' methylene-bis (2-chloroaniline). Preferably the air flow characteristics are improved by crushing the reaction product before it is fully cured.

摘要翻译： 具有低的空气流动阻力的柔性聚氨酯泡沫，另外具有良好的承载特性和高强度，包括多异氰酸酯的反应产物，多元醇共混物包括约40-60重量％的平均分子量为 约4500-6500和约60-40重量％的用于基础多元醇的平均分子量为约4500-5500的增强聚合物多元醇和低分子量交联剂，例如1,4-环己烷二甲醇或 4,4'亚甲基 - 双（2-氯苯胺）。 优选地，通过在反应产物完全固化之前粉碎反应产物来改善气流特性。

公开(公告)号：US4154785A

公开(公告)日：1979-05-15

申请号：US900766

申请日：1978-04-27

申请人： Mitsuo Inui ,  Geoge Murota ,  Akira Kasai ,  Naonori Shiina ,  Yoshikazu Kashiwa

发明人： Mitsuo Inui ,  Geoge Murota ,  Akira Kasai ,  Naonori Shiina ,  Yoshikazu Kashiwa

IPC分类号： B29D27/00

CPC分类号： B29C44/505 ,  B29L2007/00 ,  Y10S264/05 ,  Y10S264/14 ,  Y10T428/2495 ,  Y10T428/249981 ,  Y10T428/249989

摘要： A tough board of thermoplastic resin foam provided with skin layers on both surfaces thereof and formed of large cells elongated in the direction of the thickness of said board, wherein an intermediate high density layer thicker than 0.1mm lies substantially halfway between the upper and lower surfaces of said board. The board is formed by extruding thermoplastic resin containing dissolved foaming agent as a sheet, cooling the upper and lower surfaces rapidly to form solid skin layers and then slowly cooling while allowing controlled expansion thereof between expansion restricting members.

摘要翻译： 一种坚硬的热塑性树脂泡沫板，在其两个表面上具有表皮层，并由在所述板的厚度方向上延伸的大细胞形成，其中厚度大于0.1mm的中间高密度层基本上位于上表面和下表面之间的中间 的董事会。 板通过将含有溶解的发泡剂的热塑性树脂挤出成片，通过将上下表面快速冷却以形成固体表皮层，然后缓慢冷却，同时允许膨胀限制构件之间的可控膨胀而形成。

公开(公告)号：US4154784A

公开(公告)日：1979-05-15

申请号：US898176

申请日：1978-04-20

申请人： Edward A. Ruhl

发明人： Edward A. Ruhl

IPC分类号： E05D1/02 ,  B29C44/04 ,  B29C45/00 ,  B29C53/00 ,  B29C53/06 ,  B29D27/00

CPC分类号： B29C44/04 ,  Y10S264/05 ,  Y10S264/14 ,  Y10S264/16 ,  Y10S264/83 ,  Y10T428/24504 ,  Y10T428/24992 ,  Y10T428/249961

摘要： Unitary molded plastic hinged article and method of making in which a fluid molten mixture of heat softenable resin and a blowing agent in substantially unfoamed condition is introduced into an expandable mold cavity to fill the cavity and the mold is expanded to allow foaming of the resin to form at least one foam cored article section while the resin adjacent the mold surface is still fluid and in which the hinge structure is formed by a member adapted to form a thin, flex portion and portions transitional from the thickness of the flex portion to the thickness of a cored article section, the shaping member being slidably disposed in an aperture in the mold with portions of the walls of the aperture exposed within the mold cavity at the time the molten mixture is introduced and the exposed portions of the walls being wiped by the shaping member when the mold is expanded. Cooling of the mixture by the mold prevents development of blowing gas for expansion of the resin adjacent the mold and shaping member to provide an unfoamed surface for the article and an unfoamed flex portion of the hinge structure with a progressive increase in central foam in the transitional portions from the flex portion to the cored article sections.

摘要翻译： 一体成型塑料铰链制品及其制造方法，其中将可软​​化软化树脂和发泡剂的流体熔融混合物基本上未发泡的状态引入到可膨胀模腔中以填充空腔，并使模具膨胀以使树脂发泡 形成至少一个泡沫芯制品部分，同时邻近模具表面的树脂仍然是流体，并且铰链结构由适于形成薄的柔性部分的部件形成，并且部分从柔性部分的厚度过渡到厚度 的成型构件，所述成形构件可滑动地设置在模具中的孔中，其中孔的壁的部分在熔融混合物被引入时暴露在模具腔内，并且壁的暴露部分被擦拭 成型件在模具膨胀时。 通过模具冷却混合物可防止吹塑气体膨胀，以使邻近模具和成型构件的树脂膨胀，以提供用于制品的未发泡表面和铰链结构的未发泡的弯曲部分，其中过渡的中心泡沫体逐渐增加 从挠曲部分到芯部制品部分的部分。