公开(公告)号：US06593382B2

公开(公告)日：2003-07-15

申请号：US10058077

申请日：2002-01-29

申请人： Taro Kiguchi ,  Tomonori Iwamoto ,  Kenichi Senda

发明人： Taro Kiguchi ,  Tomonori Iwamoto ,  Kenichi Senda

IPC分类号： C08J918

CPC分类号： C08J9/18 ,  C08J2323/02

摘要： Polyolefin resin pre-expanded particles having two fusion peaks on DSC curve wherein the proportion of the heat of fusion Qh of the peak appearing on the high temperature side based on the total heat of fusion of the two peaks represented by the equation: [Qh/(Ql+Qh)]×100 falls within the range of 10 to 60% in which Ql is the heat of fusion of the peak appearing on the low temperature side, and the standard deviation of said proportion is not more than 1.2. The pre-expanded particles are prepared by releasing an aqueous dispersion of resin particles impregnated with a blowing agent from a vessel into an atmosphere of lower pressure than the inner pressure of the vessel to expand the particles, while stepwise or continuously raising the inner temperature or the inner pressure of the vessel at a specific rate, and can be molded with stable molding cycle to give cellular molded articles having stable dimensions.

公开(公告)号：US06607682B1

公开(公告)日：2003-08-19

申请号：US09509502

申请日：2000-03-29

申请人： Takema Yamaguchi ,  Tomonori Iwamoto ,  Minori Yamaguchi ,  Kenichi Senda

发明人： Takema Yamaguchi ,  Tomonori Iwamoto ,  Minori Yamaguchi ,  Kenichi Senda

IPC分类号： B29C4402

CPC分类号： C08J9/232 ,  B29C44/3461 ,  B29C44/445 ,  C08J9/18 ,  C08J2323/12

摘要： Polypropylene resin pre-expanded particles having an expandability of 1.0 to 1.8 shown by the equation: Expandability = Expansion  ratio  of  polypropylene  resin  pre- expanded  particles  after  steam  heating Expansion  ratio  of  polypropylene  resin  pre- expanded  particles  before  steam  heating wherein the expansion ratio of polypropylene resin pre-expanded particles after steam heating denotes the value obtained when heating the pre-expanded particles by steam having a temperature equal to the melting point peak temperature measured by differential scanning calorimetry of the base resin constituting the particles, the pre-expanded particles being able to be molded by various in-mold foaming methods in a shortened period of cooling time in molding to stably produce cellular molded articles having good melt adhesion of the particles and surface appearance and having uniform density in the surface and inner portions.

摘要翻译： 聚丙烯树脂预发泡粒子，其膨胀率为1.0〜1.8，如下式所示：蒸汽加热后的聚丙烯树脂预发泡粒子的膨胀率，表示将预发泡粒子用温度等于 通过构成颗粒的基础树脂的差示扫描量热法测量的熔点峰值温度，预成型颗粒能够通过各种模内发泡方法在缩短的成型冷却时间内成型以稳定地生产多孔模制品 具有良好的熔融粘附性和表面外观，并且在表面和内部具有均匀的密度。

公开(公告)号：US20090215914A1

公开(公告)日：2009-08-27

申请号：US11909717

申请日：2006-03-20

申请人： Fuminobu Hirose ,  Toshio Miyagawa ,  Kenichi Senda

发明人： Fuminobu Hirose ,  Toshio Miyagawa ,  Kenichi Senda

IPC分类号： C08J9/00 ,  C08G63/12

CPC分类号： C08J9/18 ,  C08J2203/14 ,  C08J2367/02 ,  C08J2367/04

摘要： It is intended to provide resin foamed particles having a high environmental compatibility. Furthermore, it is intended to provide an economical and easy-to-use method of producing resin foamed particles having biodegradability without using a crosslinking agent, which should be handled with care, in the step of producing foamed resin particles. It is also intended to provide a molded article made of foamed particles having an extremely high heat insulating property and a biodegradability. Thermoplastic polyester-type resin foamed particles, in which the ratio of cells with diameter of 50 μm or less amounts to 20% or more in an arbitrary two-dimensional section of a thermoplastic polyester-type resin foamed particles, are first produced and then a molded article is produced with the use of these resin foamed particles.

摘要翻译： 旨在提供具有高环境相容性的树脂发泡颗粒。 此外，本发明提供一种经济且易于使用的制造发泡树脂颗粒的步骤中生产具有生物降解性的树脂发泡颗粒的方法，而不使用应谨慎处理的交联剂。 本发明还提供一种由绝热性和生物降解性极高的发泡粒子制成的成型体。 首先制造热塑性聚酯型树脂发泡粒子的任意二维截面中直径为50μm以下的电池的比例为20％以上的热塑性聚酯型树脂发泡粒子， 使用这些树脂发泡粒子制造成型品。

公开(公告)号：US20090131545A1

公开(公告)日：2009-05-21

申请号：US11909970

申请日：2006-03-15

申请人： Fuminobu Hirose ,  Kenichi Senda ,  Toshio Miyagawa

发明人： Fuminobu Hirose ,  Kenichi Senda ,  Toshio Miyagawa

IPC分类号： C08J9/00

CPC分类号： C08J9/142 ,  B29C48/022 ,  B29C48/04 ,  B29C48/07 ,  B29C48/395 ,  B29C48/402 ,  B29C48/92 ,  B29C2948/92161 ,  B29C2948/9218 ,  B29C2948/922 ,  B29C2948/92209 ,  B29C2948/92514 ,  B29C2948/92609 ,  B29C2948/92619 ,  B29C2948/92695 ,  B29C2948/92704 ,  B29K2105/045 ,  B29K2995/0017 ,  B29K2995/006 ,  C08J2201/03 ,  C08J2367/04

摘要： An extruded foam excelling in environmental friendliness and having biodegradability; and a stable process for producing the same. There is provided a process for producing an extruded foam of P3HA resin, characterized by melt-kneading a copolymer (poly(3-hydroxyalkanoate), P3HA) having at least one type of repeating unit of the formula: —O—CHR—CH2—CO— (1) (wherein R is an alkyl group represented by CnH2n+1 and n is an integer of 1 to 15) produced by a microorganism, a volatile foaming agent, a fatty acid amide compound and/or liquid paraffin to thereby obtain a mixture and extruding the mixture through molding die into a low-pressure zone.

摘要翻译： 具有环保友好和具有生物降解性的挤出泡沫; 和一种稳定的生产方法。 提供一种制备P3HA树脂的挤出泡沫的方法，其特征在于熔融捏合具有至少一种下式的重复单元的共聚物（聚（3-羟基链烷酸酯），P3HA）：-O-CHR-CH2- 由微生物，挥发性发泡剂，脂肪酸酰胺化合物和/或液体石蜡制备的CO-（1）（其中R为由CnH2n + 1表示的烷基，n为1〜15的整数），由此得到 将混合物通过成型模具挤出成低压区域。

公开(公告)号：US06214896B1

公开(公告)日：2001-04-10

申请号：US09472183

申请日：1999-12-27

申请人： Kenji Mogami ,  Yasumitsu Munakata ,  Kenichi Senda

发明人： Kenji Mogami ,  Yasumitsu Munakata ,  Kenichi Senda

IPC分类号： C08J922

CPC分类号： C08J9/0061 ,  C08J9/18 ,  C08J2201/03 ,  C08J2323/10 ,  C08J2400/14 ,  C08L23/0876 ,  C08L23/10 ,  C08L2666/04

摘要： There is provided a pre-expanded particle having a high expansion ratio and excellent flexibility and cushioning property. The in-mold articles made thereof do not lose mechanical strength, heat resistance, and water resistance, without conventional volatile organic foaming agents or carbon dioxide gas. A pre-expanded particle of a polypropylene resin is prepared by pre-expanding a water-containing propylene resin composition comprising (A) 100 parts by weight of a polypropylene resin having melt flow rate (230° C., 2.16 kg load) of 10 to 70 g/10 min and tensile elongation at break of at least 300%, (B) 0.05 to 10 parts by weight of a hydrophilic polymer and (C) 0 to 3 parts by weight of a filler and having a water content of 1 to 20% by weight under a water vapor pressure at the melting point of the polypropylene resin, said particle having an apparent expansion ratio of 25 to 70 times, a closed cell content of at least 85% and an average cell diameter of 50 to 500 &mgr;m.

摘要翻译： 提供了具有高膨胀率和优异的柔性和缓冲性能的预发泡颗粒。 其制成的模内制品在没有常规挥发性有机发泡剂或二氧化碳气体的情况下不会失去机械强度，耐热性和耐水性。 通过预膨胀含水丙烯树脂组合物来制备聚丙烯树脂的预发泡颗粒，该组合物包含（A）100重量份熔体流动速率（230℃，2.16kg负载）的聚丙烯树脂为10 至70g / 10分钟，断裂时的拉伸伸长率至少为300％，（B）0.05〜10重量份的亲水性聚合物和（C）0-3重量份的填料，水含量为1 至20重量％，在聚丙烯树脂的熔点下的水蒸气压下，所述颗粒的表观膨胀率为25〜70倍，闭孔含量为85％以上，平均气泡直径为50〜500 妈妈

公开(公告)号：US5716998A

公开(公告)日：1998-02-10

申请号：US817640

申请日：1997-04-29

申请人： Yasumitsu Munakata ,  Kenichi Senda

发明人： Yasumitsu Munakata ,  Kenichi Senda

IPC分类号： C08J9/16 ,  C08J9/22

CPC分类号： C08J9/16 ,  C08J2323/12

摘要： Heat temperature at the expansion molding of a finished expanded article is decreased by lowering the melting peak temperature of the pre-expanded particles of a polypropylene resin. Comprising the polypropylene resin and a .beta.-crystalline-nucleating agent, the percentage of the .beta.-form in the whole crystalline region is 5 to 100 parts by weight.

摘要翻译： PCT No.PCT / JP95 / 02216 Sec。 371日期1997年04月29日 102（e）日期1997年4月29日PCT提交1995年10月27日PCT公布。 公开号WO96 / 13543 日期1996年5月9日通过降低聚丙烯树脂的预发泡颗粒的熔融峰值温度，降低成品发泡制品的膨胀成型时的温度。 包含聚丙烯树脂和β-结晶成核剂，整个结晶区域中β-型的百分比为5至100重量份。

公开(公告)号：US5118456A

公开(公告)日：1992-06-02

申请号：US456398

申请日：1989-12-26

申请人： Kenichi Senda ,  Takamasa Imai ,  Tetsuya Ogita

发明人： Kenichi Senda ,  Takamasa Imai ,  Tetsuya Ogita

IPC分类号： C08J9/14 ,  C08J9/18

CPC分类号： C08J9/18 ,  C08J9/141 ,  C08J2203/14 ,  C08J2323/02

摘要： An improved process for preparing pre-expanded particles of a polyolefin resin, wherein polyolefin resin particles are dispersed in water in a pressure vessel, the particles are impregnated with a volatile blowing agent which is butane containing not less than 70 percent by weight of isobutane, the temperature of the mixture of particles in water is elevated to a temperature close to the melting point of the particles under a pressure equal to or higher than the vapor pressure of the blowing agent, and the mixture is released into a low pressure zone. The obtained pre-expanded particles are not fused together or adhered to each other, and are not shrunken. Environmental damage, such as destruction of the ozone layer, is avoided since fluorochlorocarbon is not used as a blowing agent.

公开(公告)号：US4778829A

公开(公告)日：1988-10-18

申请号：US84058

申请日：1987-08-11

申请人： Tadayuki Ichimura ,  Kenichi Senda ,  Masao Ando ,  Hirofumi Maeda

发明人： Tadayuki Ichimura ,  Kenichi Senda ,  Masao Ando ,  Hirofumi Maeda

IPC分类号： B29C44/34 ,  C08J9/16 ,  C08J9/22 ,  C08J9/228 ,  C08J9/232

CPC分类号： C08J9/232 ,  B29C44/3461 ,  B29C44/445 ,  C08J9/228 ,  B29K2023/06 ,  B29K2995/0063 ,  C08J2323/02

摘要： A process for preparing pre-expanded particles of a thermoplastic resin, which comprises heating an aqueous dispersion of thermoplastic resin particles containing a volatile blowing agent to a high temperature under pressure in a pressure vessel, and releasing the dispersion into an atmosphere maintained at a lower pressure than the pressure in the pressure vessel and at a temperature of not lower than 40.degree. C. According to the process of the present invention, there can be obtained pre-expanded thermoplastic resin particles with a large average diameter of cells. By molding the pre-expanded particles obtained by the present invention, molded articles which are small in dimensional shrinkage and excellent in surface appearance can be obtained without imparting expandability to the particles or aging the particles under pressure prior to molding.

摘要翻译： 一种制备热塑性树脂预发泡颗粒的方法，包括在压力容器中将含有挥发性发泡剂的热塑性树脂颗粒的水分散体加热至高温，并将分散体释放到保持在较低温度 压力高于压力容器中的压力，并且温度不低于40℃。根据本发明的方法，可以获得具有较大平均直径的电池的预发泡热塑性树脂颗粒。 通过模制本发明获得的预发泡颗粒，可以获得尺寸收缩小和表面外观优异的模制品，而不会在模塑之前赋予颗粒的可扩展性或使压力下的颗粒老化。

公开(公告)号：US20120214890A1

公开(公告)日：2012-08-23

申请号：US13500215

申请日：2010-09-28

申请人： Kenichi Senda

发明人： Kenichi Senda

IPC分类号： C08F110/06

CPC分类号： C08F210/06 ,  B29C44/3465 ,  C08F2/001 ,  C08F4/659 ,  C08F4/65912 ,  C08F4/65916 ,  C08F4/65927 ,  C08J9/122 ,  C08J9/16 ,  C08J9/18 ,  C08J9/232 ,  C08J2201/034 ,  C08J2203/06 ,  C08J2205/052 ,  C08J2323/14 ,  C08F210/08 ,  C08F210/16 ,  C08F2500/20

摘要： Polypropylene resin expanded particles include polypropylene resin as base material resin having at least two melting peaks on a DSC curve, the at least two melting peaks including (i) a lowest-temperature melting peak of 100° C. or more but 130° C. or less and (ii) a highest-temperature melting peak of 140° C. or more but 160° C. or less, so that the expanded particles: produce an in-mold foaming molded product at a very low mold heating steam pressure; exhibit low distortion, low shrinkage, and a wide range of heating condition for molding, even if the mold heating steam pressure is increased; have satisfactory moldability when the expanded particles are molded by using a mold having a complicated shape or a large mold; and maintain properties such as compressive strength, substantially unimpaired, when the expanded particles make the in-mold foaming molded product.

摘要翻译： 聚丙烯树脂发泡颗粒包括作为基材的聚丙烯树脂，其在DSC曲线上具有至少两个熔融峰，所述至少两个熔融峰包括（i）最低温度熔融峰为100℃以上至130℃。 以下，（ii）140℃以上且160℃以下的最高温度熔融峰，使得发泡粒子在非常低的模具加热蒸汽压下产生模内发泡成型体; 即使模具加热蒸汽压力增加，表现出低变形，低收缩和用于成型的宽范围的加热条件; 当通过使用具有复杂形状的模具或大型模具模制发泡颗粒时，具有令人满意的成型性; 并且当发泡颗粒形成模内发泡模制产品时，保持诸如抗压强度，基本上不受损的性能。

公开(公告)号：US08148439B2

公开(公告)日：2012-04-03

申请号：US11909717

申请日：2006-03-20

申请人： Fuminobu Hirose ,  Toshio Miyagawa ,  Kenichi Senda

发明人： Fuminobu Hirose ,  Toshio Miyagawa ,  Kenichi Senda

IPC分类号： C08J9/00 ,  C08J9/04 ,  C08G63/00

CPC分类号： C08J9/18 ,  C08J2203/14 ,  C08J2367/02 ,  C08J2367/04

摘要： It is intended to provide resin foamed particles having a high environmental compatibility. Furthermore, it is intended to provide an economical and easy-to-use method of producing resin foamed particles having biodegradability without using a crosslinking agent, which should be handled with care, in the step of producing foamed resin particles. It is also intended to provide a molded article made of foamed particles having an extremely high heat insulating property and a biodegradability. Thermoplastic polyester-type resin foamed particles, in which the ratio of cells with diameter of 50 μm or less amounts to 20% or more in an arbitrary two-dimensional section of a thermoplastic polyester-type resin foamed particles, are first produced and then a molded article is produced with the use of these resin foamed particles.

摘要翻译： 旨在提供具有高环境相容性的树脂发泡颗粒。 此外，本发明提供一种经济且易于使用的制造发泡树脂颗粒的步骤中生产具有生物降解性的树脂发泡颗粒的方法，而不使用应谨慎处理的交联剂。 本发明还提供一种由绝热性和生物降解性极高的发泡粒子制成的成型体。 首先制造热塑性聚酯类树脂发泡粒子的任意二维截面中直径为50μm以下的细胞的比率为20％以上的热塑性聚酯型树脂发泡粒子， 使用这些树脂发泡粒子制造成型品。