公开(公告)号：US20160032070A1

公开(公告)日：2016-02-04

申请号：US14881800

申请日：2015-10-13

Applicant: JSP CORPORATION

Inventor： Mitsuru SHINOHARA ,  Masaharu OIKAWA

IPC: C08J9/12

CPC classification number: C08J9/12 ,  C08G63/08 ,  C08J9/122 ,  C08J9/18 ,  C08J9/232 ,  C08J2300/16 ,  C08J2333/02 ,  C08J2367/04

Abstract: Polylactic acid-based resin expanded beads obtained by releasing a softened, pressurized foamable resin composition, which has a polylactic acid-based resin and a physical blowing agent, to a low pressure atmosphere to foam and expand the resin composition, where the polylactic acid-based resin satisfies the conditions (1) to (3) shown below, and exhibits excellent secondary expansion properties and fusion bonding properties. A polylactic acid-based resin expanded beads molded article obtained by in-mold molding of the polylactic acid-based resin expanded beads exhibits excellent mechanical properties. MT≦30 mN  (1) log MT≦0.93 log η−1.75  (2) CT1/2≧600 sec  (3) where MT represents a melt tension [mN] at 190° C., η represents a melt viscosity [Pa·s] at 190° C. and a shear speed of 20 sec−1, and CT1/2 represents a half crystallization time [sec] at 110° C.

Abstract translation: 通过将具有聚乳酸类树脂和物理发泡剂的软化的加压发泡树脂组合物释放到低压气氛中以使树脂组合物发泡和膨胀而获得的聚乳酸类树脂发泡珠粒，其中聚乳酸 - 基于树脂的树脂满足下述条件（1）至（3），并且显示出优异的二次膨胀性和熔融粘合性。 通过聚乳酸类树脂发泡粒子的模内成型得到的聚乳酸类树脂发泡粒子成型体的机械特性优异。 MT＆nlE; 30mN（1）log MT＆nlE; 0.93log＆eegr; -1.75（2）CT1 /2≥600秒（3）其中MT表示在190℃下的熔体张力[mN] 表示190℃下的熔融粘度[Pa·s]，剪切速度为20秒-1，CT1 / 2表示110℃下的半结晶时间[秒]。

公开(公告)号：US09193099B2

公开(公告)日：2015-11-24

申请号：US13839114

申请日：2013-03-15

Applicant: JSP CORPORATION

Inventor： Masahiro Gomibuchi ,  Tomoo Tokiwa

IPC: B29C49/00 ,  B29C44/16 ,  C08J5/00 ,  B29C44/18 ,  B32B3/04 ,  B32B5/18 ,  B29C44/00 ,  B29C67/00 ,  B29C67/20 ,  B29C44/44 ,  B29K105/04

CPC classification number: B29C44/18 ,  B29C44/12 ,  B29C44/3492 ,  B29C44/445 ,  B29C67/0037 ,  B29C67/205 ,  B29K2025/06 ,  B29K2105/04 ,  B29K2995/0088 ,  B29K2995/0089 ,  B29L2009/00 ,  B32B3/04 ,  B32B5/18 ,  B32B5/20 ,  B32B2266/0214 ,  B32B2307/558 ,  C08J9/0061 ,  C08J9/228 ,  C08J2325/06 ,  C08L2205/025 ,  C08L2205/03 ,  C08L2207/20 ,  Y10T428/233 ,  C08L25/06

Abstract: A method for producing a skin-covered foamed molded article includes blow molding a parison into a skin and heating expanded polystyrene beads filled in a hollow space of the skin to form a foam layer fuse-bonded to the skin, polystyrene resin composition having specific Charpy impact strength, MFR and branching degree. The skin of the skin-covered foamed molded article is formed of the specific polystyrene resin composition.

Abstract translation: 一种皮肤覆盖的发泡成型体的制造方法包括将型坯吹塑成皮肤，加热填充在皮肤的中空空间中的发泡聚苯乙烯珠，以形成与皮肤熔合的泡沫层，具有特定的夏比的聚苯乙烯树脂组合物 冲击强度，MFR和支化度。 皮肤覆盖的发泡成型体的皮肤由特定的聚苯乙烯树脂组合物形成。

公开(公告)号：US20150315351A1

公开(公告)日：2015-11-05

申请号：US14698001

申请日：2015-04-28

Applicant: JSP CORPORATION

Inventor： Mitsuru SHINOHARA ,  Masaharu OIKAWA

IPC: C08J9/00

CPC classification number: C08J9/0061 ,  C08J9/232 ,  C08J2367/04

Abstract: A polylactic acid-based resin foamed molded article having a voidage of 5 to 45% by volume, a bulk density BD [g/cm3] of 0.01 to 0.2 g/cm3 and a ratio FT/BD of a flexural strength FT [MPa] thereof to the bulk density BD in the range of 6 to 25 MPa·cm3/g.

Abstract translation: 空隙率为5〜45体积％，堆积密度BD [g / cm 3]为0.01〜0.2g / cm 3，弯曲强度FT / MPa的FT / BD的聚乳酸类树脂发泡成型体， 的体积密度BD在6〜25MPa·cm 3 / g的范围内。

公开(公告)号：US20150218332A1

公开(公告)日：2015-08-06

申请号：US14420832

申请日：2013-08-01

Applicant: JSP CORPORATION

Inventor： Takashi Nishimoto ,  Takeshi Aoki

IPC: C08J9/00 ,  C08J5/18 ,  B32B27/06

CPC classification number: C08J9/0061 ,  B32B27/065 ,  B32B27/22 ,  B32B27/32 ,  B32B2266/025 ,  B32B2307/56 ,  B32B2457/20 ,  B32B2553/00 ,  C08J5/18 ,  C08J9/08 ,  C08J9/141 ,  C08J2201/03 ,  C08J2203/14 ,  C08J2323/06 ,  C08J2423/06 ,  Y10T428/249991

Abstract: An extruded foam sheet having a foam layer constituted of a base resin containing low density polyethylene as a major component thereof, wherein the foam sheet has an apparent density of 45 to 450 kg/m3, an average thickness of 0.03 mm or more and less than 0.3 mm and a dimensional change of −5% to 0% in the extrusion direction when heated at 80° C. for 24 hours and wherein cell walls of the foam layer have an average thickness of 6 to 70 μm. The foam sheet may be used as an interleaf sheet for glass plates.

Abstract translation: 一种具有由含有低密度聚乙烯作为其主要成分的基础树脂构成的发泡层的挤出泡沫片材，其中，泡沫片材的表观密度为45〜450kg / m 3，平均厚度为0.03mm以上且小于 0.3mm，在80℃加热24小时时，挤出方向的尺寸变化为-5％〜0％，泡沫层的泡孔壁的平均厚度为6〜70μm。 泡沫片可以用作玻璃板的中间片。

公开(公告)号：US20150102269A1

公开(公告)日：2015-04-16

申请号：US14381467

申请日：2013-02-08

Applicant: JSP CORPORATION

Inventor： Takuya Chiba ,  Masaharu Oikawa ,  Mitsuru Shinohara

IPC: H01B1/24 ,  B29B9/06

CPC classification number: H01B1/24 ,  B29B9/06 ,  B29K2023/06 ,  B29K2023/12 ,  B29K2105/04 ,  B29K2507/04 ,  B29K2995/0005 ,  C08J9/224 ,  C08J2201/038 ,  C08J2323/12 ,  C08J2423/06

Abstract: An electrostatic dissipative, polypropylene-based resin expanded bead having an expanded core layer of a polypropylene-based resin, and a cover layer that covers the expanded core layer and that is composed of a mixed resin containing electrically conductive carbon black, wherein the mixed resin includes a polypropylene resin which forms a continuous phase and a polyethylene resin which forms dispersed phases dispersed in the continuous phase, with the electrically conductive carbon black being unevenly distributed to the dispersed phases side. In-mold molding of the expanded beads gave a molded article.

Abstract translation: 一种具有聚丙烯类树脂发泡芯层的静电耗散型聚丙烯系树脂发泡珠，覆盖该发泡芯层并由含有导电性炭黑的混合树脂构成的覆盖层，其中，混合树脂 包括形成连续相的聚丙烯树脂和形成分散在连续相中的分散相的聚乙烯树脂，导电炭黑不均匀地分布在分散相侧。 发泡珠的模内成型得到模塑制品。

公开(公告)号：US20140339013A1

公开(公告)日：2014-11-20

申请号：US14264591

申请日：2014-04-29

Applicant: JSP CORPORATION

Inventor： Tatsuya KOIZUMI

IPC: F24F13/24

CPC classification number: F24F13/24 ,  B29C49/0005 ,  B29C49/04 ,  B29C2049/609 ,  B29K2023/00 ,  B29K2105/04 ,  B29K2995/0002 ,  B29K2995/0064 ,  B29L2023/004 ,  B29L2023/22 ,  B60H1/00564 ,  F24F2013/242

Abstract: A duct of a foamed blow-molded article that is constituted of a polyolefin-based resin with a bending elastic modulus of 800-1,300 MPa, that has an average apparent density (D) of 0.1 to 0.4 g/cm3 and an average thickness (T) [cm] providing D×T2 of 0.005 to 0.04 g/cm, and that has an outer surface side region and an inner surface side region having an average apparent density lower than that of the outer surface region.

Abstract translation: 一种发泡吹塑制品的导管，其由弯曲弹性模量为800-1,300MPa的聚烯烃类树脂构成，其平均表观密度（D）为0.1〜0.4g / cm 3，平均厚度（ T）[cm]，提供0.005至0.04g / cm 3的D×T2，并且具有外表面侧区域和具有低于外表面区域的平均视在密度的内表面侧区域。

公开(公告)号：US20140235741A1

公开(公告)日：2014-08-21

申请号：US14347140

申请日：2012-08-30

Applicant: JSP CORPORATION

Inventor： Mitsuru Shinohara ,  Masaharu Oikawa

IPC: C08G63/08

CPC classification number: C08J9/12 ,  C08G63/08 ,  C08J9/122 ,  C08J9/18 ,  C08J9/232 ,  C08J2300/16 ,  C08J2333/02 ,  C08J2367/04

Abstract: Polylactic acid-based resin expanded beads of the present invention are obtained by releasing a softened, pressurized foamable resin composition, which comprises a polylactic acid-based resin and a physical blowing agent, to a low pressure atmosphere to foam and expand the resin composition, wherein the polylactic acid-based resin satisfies the conditions (1) to (3) shown below, and exhibits excellent secondary expansion properties and fusion bonding properties. A polylactic acid-based resin expanded beads molded article obtained by in-mold molding of the polylactic acid-based resin expanded beads exhibits excellent mechanical properties. MT≦30 mN  (1) log MT≦0.93 log η−1.75  (2) CT1/2≧600 sec  (3) where MT represents a melt tension [mN] at 190° C., η represents a melt viscosity [Pa·s] at 190° C. and a shear speed of 20 sec−1, and CT1/2 represents a half crystallization time [sec] at 110° C.

Abstract translation: 本发明的聚乳酸类树脂发泡珠粒通过将含有聚乳酸类树脂和物理发泡剂的软化的加压发泡树脂组合物释放到低压气氛中以使树脂组合物发泡和膨胀而获得， 其中所述聚乳酸类树脂满足下述条件（1）至（3），并且显示出优异的二次膨胀性和熔融粘合性。 通过聚乳酸类树脂发泡粒子的模内成型得到的聚乳酸类树脂发泡粒子成型体的机械特性优异。 MT＆nlE; 30mN（1）log MT＆nlE; 0.93log＆eegr; -1.75（2）CT1 /2≥600秒（3）其中MT表示在190℃下的熔体张力[mN] 表示190℃下的熔融粘度[Pa·s]，剪切速度为20秒-1，CT1 / 2表示110℃下的半结晶时间[秒]。

公开(公告)号：US20040262802A1

公开(公告)日：2004-12-30

申请号：US10870957

申请日：2004-06-21

Applicant: JSP Corporation

Inventor： Kazuhiko Morita ,  Satoshi Iwasaki ,  Shinpei Arita

IPC: B29C044/24

CPC classification number: B32B27/32 ,  B29C44/22 ,  B32B5/18 ,  B32B27/065 ,  B32B27/18 ,  B32B27/22 ,  B32B37/153 ,  B32B2038/0084 ,  B32B2305/022 ,  B32B2307/21 ,  B32B2323/00

Abstract: A method of producing a composite sheet having a foam layer of a first polyolefin-based resin and a surface layer of a second polyolefin-based resin provided on at least one side of the foam layer and containing a polymeric antistatic agent. The method includes coextruding through die a first melt containing the first polyolefin-based resin and a physical blowing agent and a second melt containing the second polyolefin-based resin, the polymeric antistatic agent and a volatile plasticizer to obtain the composite sheet. The amount of the polymeric antistatic agent is 4 to 100 parts by weight per 100 parts by weight of the second polyolefin-based resin and the amount of the volatile plasticizer is 5 to 50 parts by weight per 100 parts by weight of a total amount of the second polyolefin-based resin and the polymeric antistatic agent. The second polyolefin-based resin has a crystallization temperature of Ta nullnull C.null and a melt viscosity of Ma nullPa.snull, while the polymeric antistatic agent has a crystallization temperature of Tb nullnull C.null and a melt viscosity of Mb nullPa.snull, wherein Ta, Tb, Ma and Mb satisfy the following conditions: Tb

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：US20040056491A1

公开(公告)日：2004-03-25

申请号：US10646761

申请日：2003-08-25

Applicant: JSP CORPORATION

Inventor： Seishiro Murata ,  Satoru Shioya ,  Masayuki Fukuda

IPC: B60R019/22

CPC classification number: B60R19/18 ,  B60R2019/1833 ,  Y10T428/233

Abstract: An elongated bumper core of a polyolefin-based resin-containing foam having a density of 0.045-0.2 g/cm3 and showing a compressive load of F20 at 20% strain, a compressive load of F40 at 40% strain and a compressive load of F60 at 60% strain when compressed by a rigid pipe having an outer diameter of 70 mm at a compression speed of 500 mm/minute, wherein the ratio F20/F40 is in the range of 0.6-1.3 and the ratio F60/F40 is in the range of 0.75-1.3.

Abstract translation: 具有密度为0.045-0.2g / cm 3的聚烯烃基树脂泡沫体的细长保险杠芯，并且在20％应变下显示F20的压缩载荷，在40％应变下的F40的压缩载荷和压缩 当F20 / F40在500mm /分钟的压缩速度下由外径为70mm的刚性管压缩时，F60的载荷为60％，其中F20 / F40的比例在0.6-1.3的范围内，F60 / F40 在0.75-1.3的范围内。