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公开(公告)号：US20200032024A1
公开(公告)日：2020-01-30
申请号：US16337690
申请日：2017-10-02
Applicant: JSP CORPORATION
Inventor： Shota TAKAGI , Masaharu OIKAWA
Abstract: The present invention is concerned with an expanded beads molded article of expanded beads comprising a crosslinked multi-block copolymer containing a polyethylene block and an ethylene/α-olefin copolymer block, wherein a density is 40 to 150 g/L; a gel fraction by a hot xylene extraction method is 30 to 70% by weight; a tensile elongation is 120% or more; a bead weight of the expanded beads is 0.8 to 8 mg; and the number of expanded beads per unit area on a surface of the expanded beads molded article is 5 to 30 per cm2, and is able to provide an expanded beads molded article which is light in weight and favorable in surface properties, fusion bondability, and durability.
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2.发明申请公开(公告)号：US20190382550A1
公开(公告)日：2019-12-19
申请号：US16463755
申请日：2017-11-15
Applicant: JSP Corporation
Inventor： Tatsuya HAYASHI , Nobumasa KOSHITA , Masaharu OIKAWA
Abstract: The present invention provides expanded beads of thermoplastic polyurethane, wherein the thermoplastic polyurethane constituting the expanded beads is an ether-based thermoplastic polyurethane, and a difference (T1−T2) between a melting peak temperature (T1) and a melting peak temperature (T2) is from 0 to 8° C., wherein the melting peak temperature (T1) is a melting peak temperature at the time of first heating in a DSC curve obtained by heating the expanded beads from 20° C. to 260° C. at a heating rate of 10° C./min, the melting peak temperature (T2) is a melting peak temperature at the time of second heating in a DSC curve obtained by cooling from 260° C. to 20° C. at a cooling rate of 10° C./min after the first heating and further heating again from 20° C. to 260° C. at a heating rate of 10° C./min, and the DSC curves are obtained by the heat flux differential scanning calorimetry in conformity with JIS K7121-1987. The expanded beads of thermoplastic polyurethane not only have excellent surface appearance and fusion bonding properties but also have a low shrinkage factor.
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公开(公告)号：US20180163010A1
公开(公告)日：2018-06-14
申请号：US15580308
申请日：2016-06-03
Applicant: JSP CORPORATION
Inventor： Takuya CHIBA , Masaharu OIKAWA
CPC classification number: C08J9/16 , B29B9/06 , B29C44/02 , B29C44/3415 , B29C44/3461 , B32B5/18 , B32B27/18 , C08J9/0061 , C08J9/008 , C08J9/122 , C08J9/18 , C08J9/228 , C08J9/232 , C08J2201/034 , C08J2203/06 , C08J2205/044 , C08J2205/052 , C08J2207/00 , C08J2323/12 , C08J2323/14 , C08J2423/14
Abstract: Thermoplastic resin foamed particles of the present invention including more than one functional additive selected from inorganic powder and inorganic fibers each includes a core layer formed of a thermoplastic resin and a coating layer in a foamed state formed of a thermoplastic resin, the mass ratio of the coating layer to the core layer is 99:1 to 50:50, the content (X) of the functional additive in the core layer is 5 to 90% by mass, and the content of the functional additive in the coating layer is smaller than the content (X) of the functional additive in the core layer. By this way, thermoplastic resin foamed particles from which a homogeneous foamed particle molding having excellent dimension stability, fusibility and appearance can be obtained while containing functional additive are provided.
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公开(公告)号：US20190276627A1
公开(公告)日：2019-09-12
申请号：US16349236
申请日：2017-11-13
Applicant: JSP Corporation
Inventor： Shota TAKAGI , Masaharu OIKAWA
Abstract: The present invention relates to an in-mold expanded beads molded article of expanded beads of an olefin thermoplastic elastomer, a cushion for shoe sole, and a method of producing expanded beads provided with through-holes and composed of a block copolymer of a polyethylene block and an ethylene/α-olefin copolymer block, and with respect to the in-mold expanded beads molded article of expanded beads of an olefin thermoplastic elastomer, a voidage of the expanded beads molded article is 5 to 40%; a density of the expanded beads molded article is 30 to 150 g/L; and a flexural modulus of the olefin thermoplastic elastomer that constitutes the expanded beads molded article is 10 to 100 MPa.
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5.发明申请公开(公告)号：US20180155518A1
公开(公告)日：2018-06-07
申请号：US15578608
申请日：2016-05-25
Applicant: JSP Corporation
Inventor： Nobumasa KOSHITA , Koki NISHIJIMA , Masaharu OIKAWA
CPC classification number: C08J9/18 , B29C44/3461 , B29C44/445 , B29K2075/00 , B29K2101/12 , B29K2105/046 , B29K2995/0063 , B29K2995/007 , C08J9/228 , C08J9/232 , C08J2205/052 , C08J2300/22 , C08J2375/04 , C08L75/04
Abstract: Provided are expanded beads capable of providing an expanded thermoplastic polyurethane beads molded article which is excellent in physical properties, such as compression characteristics, repulsion elasticity, etc., and an expanded thermoplastic polyurethane beads molded article. Expanded beads of thermoplastic polyurethane, wherein a Shore A hardness of the thermoplastic polyurethane is 85 or more; an average cell diameter of the expanded beads is 50 to 300 μm; and a closed cell ratio when bisecting the expanded thermoplastic polyurethane bead is 60% or more; and an expanded thermoplastic polyurethane beads molded article obtained through in-mold molding of the same are disclosed.
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Patent Agency Ranking
6.发明申请公开(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]。
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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。
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公开(公告)号：US20200032025A1
公开(公告)日：2020-01-30
申请号：US16491456
申请日：2018-03-01
Applicant: JSP Corporation
Inventor： Nobumasa KOSHITA , Masaharu OIKAWA , Tatsuya HAYASHI
Abstract: The present invention relates to an expanded beads molded article, which is obtained through in-mold molding of expanded thermoplastic elastomer beads, has voids, and has a density of 150 to 300 kg/m3 and a voidage of 10 to 70% by volume.
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公开(公告)号：US20190263994A1
公开(公告)日：2019-08-29
申请号：US16348410
申请日：2017-11-08
Applicant: JSP Corporation
Inventor： Shota TAKAGI , Masaharu OIKAWA
Abstract: The present invention relates to an expanded beads molded article containing a block copolymer of a polyethylene block and an ethylene-α-olefin copolymer block and having a density of 30 kg/m3 or more and less than 150 kg/m3 and a modulus of repulsion elasticity of 60% or more. The sole member of the present invention includes the expanded beads molded article of the present invention.
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公开(公告)号：US20190256680A1
公开(公告)日：2019-08-22
申请号：US16348108
申请日：2017-11-07
Applicant: JSP Corporation
Inventor： Shota TAKAGI , Masaharu OIKAWA
IPC: C08J9/228 , C08J9/18 , C08K5/3417 , C08K3/04
Abstract: The present invention is concerned with expanded beads that are olefin-based thermoplastic elastomer expanded beads containing a coloring agent, wherein an apparent density of the expanded beads is 40 to 300 g/L, and an average surface layer membrane thickness (a) is 3 to 25 μm, and a molded article thereof, and is able to provide expanded beads capable of producing an expanded beads molded article which is excellent in in-mold moldability and excellent in tensile characteristics and an expanded beads molded article using the expanded beads.
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