公开(公告)号：US20030124334A1

公开(公告)日：2003-07-03

申请号：US10170706

申请日：2002-06-14

Applicant: JSP CORPORATION

Inventor： Masato Naito ,  Naochika Kogure ,  Daisuke Imanari ,  Noritoshi Nishiyama

IPC: B32B003/26 ,  B29C044/00

CPC classification number: C08J9/149 ,  C08J2201/03 ,  C08J2203/06 ,  C08J2203/12 ,  C08J2203/14 ,  C08J2205/052 ,  C08J2325/06 ,  Y10S264/05 ,  Y10T428/249977

Abstract: A method for production of an extruded, polystyrene-based foam plate wherein a polystyrene-based resin is heated and kneaded together with a blowing agent, a flame retardant and a nucleating agent in an extruder to obtain a foamable molten composition, and the foamable molten composition is extruded through a die attached to an end of the extruder into a lower pressure zone. The blowing agent comprises not smaller than 25% by weight but not greater than 65% by weight, based on the total weight of the blowing agent, of an isobutane-containing saturated hydrocarbon; not smaller than 5% by weight but not greater than 70% by weight, based on the total weight of the blowing agent, of a dimethyl ether-containing ether; not smaller than 5% by weight but not greater than 55% by weight, based on the total weight of the blowing agent, of carbon dioxide; and 0-25% by weight, based on the total weight of the blowing agent, of other blowing agent components.

Abstract translation: 一种挤出的基于聚苯乙烯的泡沫板的制造方法，其中将聚苯乙烯类树脂与挤出机中的发泡剂，阻燃剂和成核剂一起加热和捏合以获得可发泡的熔融组合物，并且将可发泡的熔融 组合物通过连接到挤出机端部的模具挤出成低压区。 发泡剂包含基于发泡剂总重量的不小于25重量％但不大于65重量％的含异丁烷的饱和烃; 不小于5重量％但不大于70重量％，基于发泡剂的总重量;含二甲醚的醚; 不低于5重量％但不大于55重量％，基于发泡剂的总重量;二氧化碳; 和基于发泡剂总重量的0-25重量％的其它发泡剂组分。

公开(公告)号：US20040166269A1

公开(公告)日：2004-08-26

申请号：US10782941

申请日：2004-02-23

Applicant: JSP Corporation

Inventor： Daisuke Imanari ,  Masayasu Okuda ,  Naochika Kogure ,  Masato Naito

IPC: B65D001/00

CPC classification number: B29C49/0005 ,  B29C49/04 ,  B29C49/22 ,  B29C2791/006 ,  B29C2791/007 ,  B29K2023/06 ,  B29K2105/04 ,  Y10T428/1376

Abstract: Provided is a method for manufacturing a foam-molded article by molding between molds a parison with a foam layer formed by extruding an expandable molten resin composition, obtained by melt-kneading a polyethylene resin and a physical foaming agent, to an area of low pressure from a die, wherein the polyethylene resin is selected from at least any of the following I), II), and III), and wherein the apparent density of the foam layer in the foam-molded article is about 0.04 to 0.3 g/cm3, whereby a foam-molded article with a low apparent density and excellent physical properties can easily be obtained. I) A resin comprising 40 to 85 wt % polyethylene (A) with a density that is more than 0.94 g/cm3 and not more than 0.97 g/cm3, and a melt flow rate of 0.1 to 20 g/10 minutes; and 15 to 60 wt % polyethylene (B) with a density of 0.89 to 0.94 g/cm3, a melt flow rate of 0.2 to 20 g/10 minutes, and a melt tension of not less than 2 cN (provided that the total of polyethylene (A) and (B) is 100 wt %). II) A resin which has at least one endothermic peak having a top temperature of not less than 125null C. on a DSC curve obtained by differential scanning calorimetry, and in which the ratio of the heat quantity of the endothermic peak(s) at not less than 125null C. with respect to the total heat quantity of the endothermic peak(s) is 50 to 95%, melt flow rate is 0.2 to 25 g/10 minutes, and melt tension is not less than 1.5 cN. III) A resin which comprises 40 to 85 wt % polyethylene (A) having a density more than 0.94 g/cm3 and not more than 0.97 g/cm3, and a melt flow rate of 0.1 to 20 g/10 minutes: and 15 to 60 wt % polyethylene (B) having a density of 0.89 to 0.94 g/cm3, a melt flow rate of 0.2 to 20 g/10 minutes, and a melt tension of not less than 2 cN (provided that the total of polyethylene (A) and (B) is 100 wt %); which has at least one endothermic peak having a top temperature of not less than 125null C. on a DSC curve obtained by differential scanning calorimetry; and in which the ratio of the heat quantity of the endothermic peak(s) at not less than 125null C. with respect to the total heat quantity of the endothermic peak(s) is 50 to 95%, melt flow rate is 0.2 to 25 g/10 minutes, and melt tension is not less than 1.5 cN. The foam-molded article of the present invention, as obtained by the above-described method, has a foam layer with an apparent density of about 0.04 to 0.3 g/cm3 and a thickness of 2 to 25 mm, exhibits excellent heat resistance, mechanical strength, low-temperature impact resistance, and possesses excellent lightweight, thermal-insulating characteristics, soundproofing characteristics, vibration-proofing characteristics, chemical resistance, and recycling properties.

公开(公告)号：US20030042644A1

公开(公告)日：2003-03-06

申请号：US10170725

申请日：2002-06-14

Applicant: JSP CORPORATION

Inventor： Hiroyuki Gokuraku ,  Naochika Kogure ,  Seiji Takahashi ,  Daisuke Imanari ,  Masato Naito

IPC: B29C044/00 ,  B32B003/26

CPC classification number: C08J9/149 ,  B29C44/505 ,  B29C48/07 ,  B29C48/903 ,  B29C48/908 ,  C08J9/141 ,  C08J2201/03 ,  C08J2203/12 ,  C08J2203/14 ,  C08J2325/06 ,  Y10T428/249953

Abstract: An extruded, polystyrene-based resin foam plate produced by extruding a foamable molten composition containing a polystyrene-based resin and a blowing agent consisting of (a) isobutane and (b) a blowing agent component other than isobutane, chlorofluorocarbons and fluorocarbons from a high pressure zone into a lower pressure zone. The extruded foam plate has a thickness of at least 10 mm and an apparent density of 25-60 kg/m3 contains residual isobutane in an amount of 0.45-0.80 mol per 1 kg thereof, has cells having an average diameter in the thickness direction thereof of 0.05-0.18 mm and a cell strain rate of 0.7-1.2, wherein the cell strain rate is obtained by dividing the average diameter in the thickness direction of the extruded foam plate by the average diameter in the horizontal direction of the extruded foam plate, meets the flammability standard on extruded polystyrene foam insulation plates as defined in JIS A9511-1995, and has a thermal conductivity of not greater than 0.028 W/mnullK.

Abstract translation: 挤出的基于聚苯乙烯的树脂发泡板，其通过挤出含有聚苯乙烯类树脂的发泡性熔融组合物和由（a）异丁烷和（b）异丁烷，氯氟烃和碳氟化合物以外的发泡剂组分组成的可发泡熔融组合物 压力区进入低压区。 挤出的泡沫板的厚度为至少10mm，表观密度为25-60kg / m 3，其含有残留的异丁烷，每1kg为0.45-0.80mol，具有其厚度方向的平均直径的细胞 为0.05〜0.18mm，细胞应变率为0.7-1.2，其中细胞应变率通过将挤出泡沫板的厚度方向上的平均直径除以挤出泡沫板的水平方向的平均直径而得到， 符合JIS A9511-1995定义的挤压聚苯乙烯泡沫绝缘板的可燃性标准，导热率不大于0.028 W / mK

公开(公告)号：US20010009683A1

公开(公告)日：2001-07-26

申请号：US09764355

申请日：2001-01-19

Applicant: JSP CORPORATION

Inventor： Takashi Kitahama ,  Masato Naito ,  Ryo Kikusawa

IPC: B29C044/30

CPC classification number: B29C44/304

Abstract: The invention relates to apparatus for manufacturing expansion-molded articles capable of manufacturing expansion-molded articles continuously by conveying foamed beads into a heating region sandwiched between upper and lower belts and foaming by heating, and consists in apparatus for manufacturing expansion-molded articles constituted such that the thickness or width of the expansion-molded article can be altered. The manufacturing apparatus of the invention consists in manufacturing apparatus for manufacturing molded articles, comprising a belt that continuously travels along the upper inside face of a passageway, defined by structural members, whose cross-section constitutes an approximately rectangular shape and a belt that continuously travels along the lower inside face thereof, by continuously molding foamed beads by successively passing foamed beads supplied between these upper and lower belts through a heating region and cooling region sandwiched between these belts, in which, by constituting at least one of the upper and lower structural members that form the passageway so as to be capable of movement in the vertical direction sandwiched between the side-face structural members a construction is achieved such that the thickness of the expansion-molded article that is sought to be obtained can easily be varied, or, by constituting at least one of the side-face structural members that form the passageway so as to be capable of movement in the lateral direction sandwiched between the upper and lower structural members a construction is achieved such that the width of the expansion-molded article that is sought to be obtained can easily be varied.

Abstract translation: 本发明涉及能够通过将发泡珠粒输送到夹在上下带之间的加热区域并通过加热发泡而连续地制造发泡成型制品的膨胀成型制品的装置，并且包括用于制造这样的膨胀模制品的装置 可以改变发泡成型制品的厚度或宽度。 本发明的制造装置包括制造模制品的制造装置，包括沿着由结构构件限定的通道的上部内表面连续行进的带，其横截面构成大致矩形形状，并且连续行进的带 通过连续地通过在这些上下带之间通过加热区域和夹在这些带之间的冷却区域连续地通过发泡颗粒连续地模制发泡颗粒，其中通过构成上下结构中的至少一个 实现形成通道以能够沿夹在侧面结构件之间的垂直方向移动的构件的结构，使得要获得的发泡成型制品的厚度可以容易地变化，或者 通过构成用于的侧面结构构件中的至少一个 该通道能够在夹在上下结构构件之间的横向方向上移动，实现了可以容易地改变想要获得的发泡模制品的宽度的结构。