公开(公告)号：US20140005287A1

公开(公告)日：2014-01-02

申请号：US14005108

申请日：2012-03-16

Applicant: Akihiro Itoi

Inventor： Akihiro Itoi

IPC: C08J9/18 ,  C08F110/06

CPC classification number: C08F110/06 ,  B29C44/08 ,  B29C44/3461 ,  C08J9/0061 ,  C08J9/122 ,  C08J9/141 ,  C08J9/18 ,  C08J9/232 ,  C08J2201/034 ,  C08J2203/06 ,  C08J2203/14 ,  C08J2323/14 ,  C08J2471/02

Abstract: Provided are pre-expanded polypropylene resin particles having a dimensional expansion coefficient of 1.5% or more determined with a thermomechanical analyzer at a constant compressive load of 1 mg during heating from 30° C. to 100° C. at a temperature increase rate of 10° C./min. Using the pre-expanded polypropylene resin particles can yield an in-mold foam molded product of polypropylene resin having few wrinkles and small dimensional shrinkage without pretreatment such as internal pressure application or compression packing during packing the pre-expanded particles in a mold for in-mold foam molding.

Abstract translation: 本发明提供一种预发泡聚丙烯树脂颗粒，其在30℃至100℃的温度下以10℃的恒定压缩载荷下，用热机械分析仪测定的尺寸膨胀系数为1.5％以上。 °C / min。 使用预发泡的聚丙烯树脂颗粒可以产生具有很少皱纹和小尺寸收缩的聚丙烯树脂的模内发泡模制产品，而不需要预处理，例如在将预发泡颗粒包装在模具中的内部压力施加或压缩填料， 模具发泡成型。

公开(公告)号：US20120283347A1

公开(公告)日：2012-11-08

申请号：US13521655

申请日：2011-01-14

Applicant: Kiyotaka Nakayama

Inventor： Kiyotaka Nakayama

IPC: C08F110/02 ,  B29C44/02 ,  C08L23/08

CPC classification number: C08J9/16 ,  C08J9/0023 ,  C08J9/12 ,  C08J9/18 ,  C08J9/228 ,  C08J9/232 ,  C08J2201/034 ,  C08J2323/06 ,  C08J2323/08 ,  C08L23/04

Abstract: A noncrosslinked polyethylene resin expanded particle is provided having a bulk density in a range of 10 g/L to 100 g/L, the particle being obtained by expanding a polyethylene resin particle whose density is in a range of 0.920 g/cm3 to 0.940 g/cm3, the noncrosslinked polyethylene resin expanded particle having a shrinkage factor in a range of 2% to 30%, the shrinkage factor being obtained by the following formula (1): Shrinkage Factor=(BD−VBD)×100/VBD  (1), wherein: the BD of the noncrosslinked polyethylene expanded particle is a bulk density at 23° C. and at 0.1 MPa (at a normal atmospheric pressure); and the VBD of the noncrosslinked polyethylene expanded particle is a bulk density at 23° C. and at a reduced pressure of 0.002 MPa or less.

Abstract translation: 提供了一种非交联聚乙烯树脂膨胀颗粒，其堆积密度在10g / L至100g / L的范围内，该颗粒通过使密度为0.920g / cm 3至0.940g的聚乙烯树脂颗粒膨胀而获得 收缩系数由下式（1）求出：收缩率=（BD-VBD）×100 / VBD（1）/ cm 3，收缩率在2％〜30％的范围内的非交联聚乙烯树脂发泡粒子 ），其中：非交联聚乙烯发泡颗粒的BD在23℃和0.1MPa（在正常大气压）下的堆积密度; 非交联聚乙烯发泡粒子的VBD为23℃，0.002MPa以下的减压下的体积密度。

公开(公告)号：US20120214890A1

公开(公告)日：2012-08-23

申请号：US13500215

申请日：2010-09-28

Applicant: Kenichi Senda

Inventor： Kenichi Senda

IPC: C08F110/06

CPC classification number: 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

Abstract: 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.

Abstract translation: 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：US11981762B2

公开(公告)日：2024-05-14

申请号：US16820839

申请日：2020-03-17

Applicant: AGC Inc.

Inventor： Shinya Higuchi ,  Shiro Ebata ,  Takehiro Kose

IPC: C08F214/26 ,  B29C48/00 ,  C08J9/22 ,  B29K27/18

CPC classification number: C08F214/265 ,  B29C48/0018 ,  B29C48/022 ,  C08J9/22 ,  B29K2027/18 ,  C08J2201/034 ,  C08J2327/22

Abstract: To provide a modified PTFE excellent in heat resistance. The modified polytetrafluoroethylene comprises a polymer having units based on tetrafluoroethylene and a polymer having units based on a fluorine-free monomer, wherein the endothermic amount ratio R calculated by a prescribed method is at least 0.65.

公开(公告)号：US11873378B2

公开(公告)日：2024-01-16

申请号：US17656899

申请日：2022-03-29

Applicant: NOURYON CHEMICALS INTERNATIONAL B.V.

Inventor： Ove Nordin ,  Magnus Jonsson

IPC: C08J9/20 ,  C08J9/00 ,  C08J9/14 ,  C08J9/228 ,  B01J13/18

CPC classification number: C08J9/20 ,  C08J9/0066 ,  C08J9/141 ,  C08J9/228 ,  B01J13/185 ,  C08J2201/034 ,  C08J2203/14 ,  C08J2325/06 ,  C08J2367/04

Abstract: The present invention relates to thermally expandable microspheres at least partially prepared from bio-based monomers and to a process of their manufacture. The microspheres comprise a thermoplastic polymer shell encapsulating a blowing agent, wherein the thermoplastic polymer shell comprises a polymer being a homo- or copolymer of a lactone according to formula (1):




wherein each of R1, R2, R3, R4, separately from one another, is selected from the group consisting of H and an alkyl group preferably with 1-4 carbon atoms. The invention further provides expanded microspheres, which can be used in a variety of applications.

公开(公告)号：US20180163008A1

公开(公告)日：2018-06-14

申请号：US15892117

申请日：2018-02-08

Applicant: KANEKA CORPORATION

Inventor： Toru Yoshida ,  Akihiro Itoi

IPC: C08J9/00 ,  C08J9/18

CPC classification number: C08J9/0066 ,  C08J9/0023 ,  C08J9/0038 ,  C08J9/0052 ,  C08J9/0061 ,  C08J9/122 ,  C08J9/18 ,  C08J9/232 ,  C08J9/34 ,  C08J2201/034 ,  C08J2203/06 ,  C08J2205/052 ,  C08J2323/06 ,  C08J2323/08 ,  C08J2471/02 ,  C08L23/0815 ,  C08L2203/14

Abstract: Polyethylene-based resin foamed particles are obtained having good productivity, achieve an increase in foaming ratio, and in which a miniaturization of the average cell diameter is suppressed. A polyethylene-based resin in-mold-foam-molded body using the foamed particles is reduced in yellowing of the surface of the molded body and has favorable surface beauty (surface smoothness). The foamed particles contain, as a base resin, a polyethylene-based resin composition containing 1000 ppm or more and 4000 ppm or less in total of one or more compounds selected from the group consisting of antioxidants, metal stearates, and inorganic substances and 50 ppm or more and 20000 ppm or less of hydrophilic compounds, in which the Z average molecular weight is 30×104 or more and 100×104 or less, the surface layer film thickness is 11 μm or more and 120 μm or less, and the open-cell ratio is 12% or less.

公开(公告)号：US09938389B2

公开(公告)日：2018-04-10

申请号：US15028357

申请日：2014-09-29

Applicant: BASF SE

Inventor： Uwe Keppeler

IPC: C08J9/18 ,  C08J9/20 ,  B29C44/34 ,  C08J9/00 ,  C08J9/12 ,  C08J9/14 ,  C08J9/232 ,  C08J9/236 ,  C08J9/228

CPC classification number: C08J9/18 ,  B29C44/3453 ,  B29C44/3461 ,  C08J9/0061 ,  C08J9/0066 ,  C08J9/122 ,  C08J9/141 ,  C08J9/228 ,  C08J9/232 ,  C08J9/236 ,  C08J2201/034 ,  C08J2203/06 ,  C08J2203/14 ,  C08J2203/182 ,  C08J2205/052 ,  C08J2300/16 ,  C08J2367/02 ,  C08J2467/04

Abstract: A process for producing expanded foam beads from pellets comprising at least one biodegradable polyester. The process comprises (i) producing a suspension comprising pellets in an aqueous suspension medium, (ii) impregnating the pellets present in the suspension from step (i) with at least one physical blowing agent by heating the pellet suspension to a depressurization temperature IMT, with stirring, to provide pellets laden with blowing agent in the suspension medium, and (iii) depressurizing the suspension obtained in step (ii) and cooling the depressurized suspension with a liquid aqueous coolant, in order to obtain the expanded foam beads. The blowing agent can be added in step I, or in step ii during the heating phase or following the heating phase. Following the heating phase, the suspension is maintained at a temperature in the range from IMT minus 5° C. to IMT plus 2° C. for 3 to 100 minutes, and the ratio of aqueous coolant to suspension medium is at least 0.3. The invention further relates to expanded foam beads obtained by the process and to moldings that are produced from the expanded foam beads.

公开(公告)号：US20170162292A1

公开(公告)日：2017-06-08

申请号：US15438203

申请日：2017-02-21

Applicant: Kaneka Corporation

Inventor： Keishi Sato

IPC: H01B1/24 ,  C08J9/18 ,  C08K3/04

CPC classification number: H01B1/24 ,  C08J9/0023 ,  C08J9/0028 ,  C08J9/0061 ,  C08J9/0066 ,  C08J9/122 ,  C08J9/141 ,  C08J9/18 ,  C08J9/232 ,  C08J2201/034 ,  C08J2203/06 ,  C08J2203/142 ,  C08J2323/10 ,  C08J2323/14 ,  C08J2471/02 ,  C08L23/10 ,  C08L71/02 ,  C08K3/04

Abstract: Conductive polypropylene-based foamed resin particles foamed particles includes a resin composition containing 100 parts by weight of a polypropylene-based resin, 17.6 parts by weight to 33.4 parts by weight of conductive carbon black, and 0.1 parts by weight to 3.0 parts by weight of a water-soluble organic substance. The resin composition has a melting point (Tm) of 145° C. to 155° C., as measured by a differential scanning calorimetry (DSC) method, and has a temperature difference (ΔT) of 50° C. or more between the melting point (Tm) and a crystal melting start temperature (Tl) in a DSC differential scanning calorimetry (DSC) curve.

公开(公告)号：US20160297943A1

公开(公告)日：2016-10-13

申请号：US15028259

申请日：2014-10-09

Applicant: BASF SE

Inventor： Christian DÄSCHLEIN ,  Peter GUTMANN ,  Jürgen AHLERS

IPC: C08J9/18 ,  B29C44/34 ,  B29C44/08 ,  C08J9/12

CPC classification number: C08J9/18 ,  B29C44/08 ,  B29C44/3415 ,  B29C44/3453 ,  B29C44/3461 ,  B29K2009/06 ,  B29K2019/00 ,  B29K2067/00 ,  B29K2075/00 ,  B29K2077/00 ,  B29K2096/04 ,  B29K2105/0005 ,  B29K2105/048 ,  B29K2105/251 ,  B29K2995/0037 ,  B29K2995/0039 ,  B29K2995/004 ,  B29K2995/0063 ,  B29K2995/007 ,  C08J9/122 ,  C08J9/232 ,  C08J9/236 ,  C08J2201/026 ,  C08J2201/034 ,  C08J2203/06 ,  C08J2203/182 ,  C08J2205/044 ,  C08J2205/046 ,  C08J2205/052 ,  C08J2300/22 ,  C08J2300/26 ,  C08J2325/10 ,  C08J2353/02 ,  C08J2367/02 ,  C08J2375/06 ,  C08J2375/08 ,  C08J2377/02 ,  C08J2377/04 ,  C08J2377/06

Abstract: A process for production of expanded thermoplastic elastomer beads in the presence of a gaseous medium that surrounds thermoplastic elastomer beads. The process comprises a) an impregnating step, in which the gaseous medium has an impregnating temperature Ta, and the absolute pressure of the gaseous medium is greater than ambient pressure, the thermoplastic elastomer beads impregnated with a blowing agent, b) an expanding step, in which the thermoplastic elastomer beads expand as they are exposed to a pressure reduction at a first expanding temperature Tb, and c) optionally a fusing step, in which the expanded thermoplastic elastomer beads are fused together at a fusing temperature Tc to form at least one shaped part.

公开(公告)号：US20160288456A1

公开(公告)日：2016-10-06

申请号：US15036341

申请日：2014-11-10

Applicant: STO SE & CO. KGAA

Inventor： Martin HITZLER ,  Andreas WEIER ,  Gerald BURGETH ,  Joachim EGGI ,  Peter ENGELNIEDERHAMMER ,  Jochen KOHNLEIN ,  Frithjof KOERDT ,  Martin BAUER

IPC: B32B5/20 ,  E04B1/94 ,  E04B1/76 ,  B32B7/12 ,  B32B5/32

CPC classification number: B32B5/20 ,  B32B5/32 ,  B32B7/12 ,  B32B2250/40 ,  B32B2264/0235 ,  B32B2264/0257 ,  B32B2264/0278 ,  B32B2266/0228 ,  B32B2307/304 ,  B32B2307/4026 ,  C08J9/236 ,  C08J2201/034 ,  C08J2325/06 ,  E04B1/76 ,  E04B1/941

Abstract: A method for producing a multilayer molded body for the heat insulation of buildings, for which foamable or pre-foamed polymer particles for forming a layer are used. The foamable or pre-foamed polymer particles are at least partially coated with an organic binding agent, and are bonded in a mold having at least one plate made of expanded or extruded polystyrene rigid foam for carrying out a final foaming process. The invention furthermore relates to a multilayer molded body for the heat insulation of buildings.

Abstract translation: 使用用于建筑物隔热的多层成型体的方法，其中用于形成层的可发泡或预发泡聚合物颗粒。 可发泡或预发泡的聚合物颗粒至少部分地涂覆有机粘合剂，并且在具有至少一个由膨胀或挤出的聚苯乙烯硬质泡沫塑料制成的板的模具中粘合以进行最终的发泡过程。 本发明还涉及一种用于建筑物隔热的多层模制体。