公开(公告)号：JP2010180354A

公开(公告)日：2010-08-19

申请号：JP2009026303

申请日：2009-02-06

Applicant: Sekisui Plastics Co Ltd ,  積水化成品工業株式会社

Inventor： NAKAGAITO SHIRO ,  TSUTSUI YASUTAKA ,  OZAWA MASAHIKO

IPC: C08J9/18 ,  C08L101/00

Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a foamable thermoplastic resin particle which can reduce production cost.
SOLUTION: This method for producing a foamable thermoplastic resin particle includes bringing a thermoplastic resin particle into contact with and impregnated with a liquid volatile foaming agent in the absence of a dispersion medium while the plastic resin particle is immersed beneath the liquid level of the volatile foaming agent to obtain a foamable thermoplastic resin particle.
COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 待解决的问题：提供可以降低生产成本的可发泡热塑性树脂颗粒的制造方法。 解决方案：用于制造可发泡热塑性树脂颗粒的方法包括在不存在分散介质的情况下使热塑性树脂颗粒与液体挥发性发泡剂接触并浸渍，同时将塑料树脂颗粒浸入到 挥发性发泡剂得到可发泡热塑性树脂颗粒。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2008239794A

公开(公告)日：2008-10-09

申请号：JP2007082129

申请日：2007-03-27

Applicant: Sekisui Plastics Co Ltd ,  積水化成品工業株式会社

Inventor： OZAWA MASAHIKO ,  ISHIDA SHINJI

IPC: C08L51/06 ,  C08F2/44 ,  C08F255/02 ,  C08J9/18 ,  C08K3/04 ,  C08K5/01 ,  C08K5/14 ,  C08K5/29

Abstract: PROBLEM TO BE SOLVED: To provide a self-extinguishing carbon-containing modified PP foamed molded product having the self-extinguishing property while preferably maintaining rigidity, foaming molding property, chemical resistance, and heat resistance by improving shortcomings of both PS foamed molded product and PP foamed molded product. SOLUTION: The self-extinguishing carbon-containing modified polystyrene resin particle contains 100 mass parts and more and less than 400 mass parts of PS to 100 mass parts of a carbon-containing PP. It has a PS ratio calculated by the absorbance ratio (D 698 /D 1376 ) at 698 cm -1 and 1,376 cm -1 obtained from infrared absorption spectra of the particle central part measured by the ATR infrared spectroscopic analysis of 1.2 or more times the PS ratio of the total particles. The self-extinguishing carbon-containing modified polystyrene resin particles contain 1.5 mass parts and more and less than 6 mass parts of a flame retardant and 0.1 mass part and more and less than 3 mass parts of a flame retardant aid to 100 mass parts of the carbon-containing modified polystyrene resin particle. COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供具有自熄性的自熄性含碳改性PP发泡成型体，同时优选保持刚性，发泡成型性，耐化学性和耐热性，通过改善PS发泡剂的缺点 成型产品和PP发泡成型产品。 解决方案：自熄性含碳改性聚苯乙烯树脂颗粒包含100质量份和多于少于400质量份的PS至100质量份的含碳PP。 它具有在698厘米SP / -1和1376厘米的吸光度比（D 698 / D 1376 ）计算的PS比值， 通过ATR红外光谱分析测得的粒子中心部分的红外吸收光谱获得的1 为总粒子PS比的1.2倍以上。 自熄性含碳改性聚苯乙烯树脂粒子含有1.5质量份以上且6质量份以下的阻燃剂，0.1质量份以上且小于3质量份的阻燃助剂至100质量份 含碳改性聚苯乙烯树脂颗粒。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2013194220A

公开(公告)日：2013-09-30

申请号：JP2012065916

申请日：2012-03-22

Applicant: Sekisui Plastics Co Ltd ,  積水化成品工業株式会社

Inventor： MORISHIMA NAOYA ,  OZAWA MASAHIKO

IPC: C08J9/16 ,  B29C44/00 ,  B29K23/00 ,  B29K105/04 ,  C08J9/18 ,  C08J9/228

Abstract: PROBLEM TO BE SOLVED: To provide a polyethylene-based resin particle in which the sticking of polyethylene particle to each other is reduced and a composite resin particle, a foamable composite resin particle and a prefoamable particle in which the amount of an irregular shaped particle is reduced by the suppression of the sticking of the polyethylene-based resin particle to each other and a foamable molded product in which the deterioration in the appearance is suppressed.SOLUTION: A polyethylene-based resin particle is used for a composite resin particle containing a resin obtained by polymerizing a monomer and contains a polyethylene based resin having a plant content degree. The polyethylene-based resin particle preferably contains a plant-derived polyethylene based resin having a plant content degree of ≥80% measured by ASTM D 6866. A composite resin particle contains a resin obtained by impregnating the polyethylene-based resin particle with a monomer and polymerizing. A foamable composite resin particle contains the composite resin particle and a volatile foamable agent. A prefoamable particle is obtained by prefoaming the expandable composite resin particle. A foamable molded product is obtained by foaming and molding the prefoamable particle.

Abstract translation: 要解决的问题：提供聚乙烯颗粒彼此粘附的聚乙烯类树脂颗粒和复合树脂颗粒，可发泡复合树脂颗粒和不规则形颗粒的量的预发泡颗粒 通过抑制聚乙烯类树脂颗粒彼此粘附的抑制和抑制外观劣化的发泡性模塑制品而降低。本发明的聚乙烯类树脂颗粒用于含有树脂的复合树脂颗粒 通过聚合单体并含有具有植物含量的聚乙烯基树脂获得。 聚乙烯系树脂颗粒优选含有通过ASTM D 6866测定的植物含量为≥80％的植物来源的聚乙烯系树脂。复合树脂颗粒含有通过用聚合物浸渍聚乙烯类树脂颗粒而获得的树脂， 聚合。 可发泡复合树脂颗粒包含复合树脂颗粒和挥发性可发泡剂。 通过预发泡可膨胀复合树脂颗粒获得预发泡颗粒。 通过发泡和模制预发泡颗粒获得可发泡的模制产品。

公开(公告)号：JP2012214567A

公开(公告)日：2012-11-08

申请号：JP2011079532

申请日：2011-03-31

Applicant: Sekisui Plastics Co Ltd ,  積水化成品工業株式会社

Inventor： OZAWA MASAHIKO ,  MORIMOTO SEIICHI ,  KOBAYASHI MOKUKYO

IPC: C08J9/18 ,  C08J3/12

Abstract: PROBLEM TO BE SOLVED: To provide a convenient method of manufacturing a polypropylene-based resin particle for seed polymerization which can obtain a composite resin particle in which contents of a fine particle and an aggregated particle are few.SOLUTION: The method of manufacturing a polypropylene-based resin particle for seed polymerization is characterized in that a resin composition containing a polypropylene-based resin at least is extruded at 230-280°C of a melt-kneading temperature, and an obtained extrudate is cut in an aqueous stream at 50-70°C of an aqueous stream temperature to manufacture the polypropylene-based resin particle.

Abstract translation: 要解决的问题：提供一种制造用于种子聚合的聚丙烯基树脂颗粒的方便方法，其可以获得其中细颗粒和聚集颗粒的含量很少的复合树脂颗粒。 解决方案：用于种子聚合的聚丙烯类树脂颗粒的制造方法的特征在于，含有聚丙烯类树脂的树脂组合物至少在230-280℃下熔融捏合温度被挤出， 将得到的挤出物在含水流温度的50-70℃的水流中切割，制造聚丙烯类树脂颗粒。 版权所有（C）2013，JPO＆INPIT

公开(公告)号：JP2011058006A

公开(公告)日：2011-03-24

申请号：JP2010286346

申请日：2010-12-22

Applicant: Sekisui Plastics Co Ltd ,  積水化成品工業株式会社

Inventor： TSUTSUI YASUTAKA ,  OZAWA MASAHIKO

IPC: C08J9/18 ,  C08L23/00 ,  C08L25/00

Abstract: PROBLEM TO BE SOLVED: To provide a foamable composite resin particle for long-term preservation for which an ordinary closed container (including bag-shaped type) can be used to permit large amount transportation.
SOLUTION: The foamable composite resin particle for long-term preservation contains 500 to 4,500 ppm of moisture and 7.5 to 11.0 wt.% of pentane in a composite resin of a polyolefin-based resin and a polystyrene-based resin, and the composite resin includes 100 pts.wt. of polyolefin-based resin and 110 to 730 pts.wt. of polystyrene-based resin and is applied for long-term preservation in -5°C or lower.
COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供一种用于长期保存的可发泡复合树脂颗粒，其中可以使用通常的密封容器（包括袋形）以允许大量运输。 解决方案：长期保存的发泡性复合树脂颗粒在聚烯烃类树脂和聚苯乙烯类树脂的复合树脂中含有500〜4500ppm的水分和7.5〜11.0重量％的戊烷， 复合树脂包括100重量份 的聚烯烃类树脂和110〜730重量份 的聚苯乙烯类树脂，适用于-5℃以下的长期保存。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2010222529A

公开(公告)日：2010-10-07

申请号：JP2009074078

申请日：2009-03-25

Applicant: Sekisui Plastics Co Ltd ,  積水化成品工業株式会社

Inventor： TSUTSUI YASUTAKA ,  OZAWA MASAHIKO

IPC: C08J9/18 ,  C08L23/00 ,  C08L25/04

Abstract: PROBLEM TO BE SOLVED: To provide a frozen-stored expandable composite resin particle comprising a polyolefin resin and a polystyrene resin and containing pentane, wherein, even if the expandable composite resin particles are pre-expanded without being thawed after frozen-stored, the pre-expanded particle becomes not in a state having a core, or has a low mixing ratio of the pre-expanded particle in a state having a core.
SOLUTION: The wet manufacturing method for the expandable composite resin particles comprises a step of adding pentane as an expanding agent to composite resin particles comprising a polyolefin resin and a polystyrene resin at a temperature within the range of (T+10)°C to (T+40)°C, T(°C) being the boiling point of pentane, in an aqueous medium to impregnate the resin particles with 7.5-11.0 wt.% of pentane, and a step of freezing the pentane-impregnated composite resin particles taken out of the aqueous medium.
COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 待解决的问题：提供一种包含聚烯烃树脂和聚苯乙烯树脂并含有戊烷的冷冻储存可膨胀复合树脂颗粒，其中即使在冷冻储存之后，可膨胀复合树脂颗粒被预扩张而不经解冻 ，预发泡粒子不处于具有芯的状态，或者在具有芯的状态下具有低的预发泡粒子的混合比。 解决方案：可膨胀复合树脂颗粒的湿式制造方法包括在（T + 10）°范围内的温度下，将包含聚烯烃树脂和聚苯乙烯树脂的复合树脂颗粒作为发泡剂的戊烷添加的步骤 在具有7.5-11.0重量％戊烷浸渍树脂颗粒的水性介质中，C至（T + 40）℃，T（℃）为戊烷的沸点，以及将戊烷浸渍 复合树脂颗粒从水介质中取出。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2007270116A

公开(公告)日：2007-10-18

申请号：JP2006213681

申请日：2006-08-04

Applicant: Sekisui Plastics Co Ltd ,  Tosoh Corp ,  東ソー株式会社 ,  積水化成品工業株式会社

Inventor： ISHIDA SHINJI ,  OZAWA MASAHIKO ,  FUTAMURA NAOYUKI ,  ABE SHIGEHIKO ,  YUKIOKA SATOSHI

IPC: C08L23/00 ,  C08J9/18 ,  C08L25/00

Abstract: PROBLEM TO BE SOLVED: To provide a styrene-modified polyolefin resin particle yielding a foamed molding with improved physical properties such as fusion bonding rate, rigidity, impact resistance and chemical resistance. SOLUTION: The styrene-modified polyolefin resin particle contains 20-600 pts.wt. styrene resin against 100 pts.wt. polyolefin resin, wherein the polyolefin resin is an ethylene homopolymer or a copolymer of ethylene and an olefin having 3 or more carbons, has density of ≥0.940 g/cm 3 , a shrinkage factor (g' value) of less than 1.0 but not less than 0.4 and a melt flow rate under a 2.16 kg load of 0.15-20 g/10 min and satisfies the relation: MS>110-100×log(MFR) (wherein MS is the melt tension (mN) at 160°C; and MFR is the melt flow rate). COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：提供产生具有改善的物理性能如熔接速率，刚性，耐冲击性和耐化学性的发泡模塑体的苯乙烯改性聚烯烃树脂颗粒。 苯乙烯改性聚烯烃树脂颗粒含有20-600重量份 苯乙烯树脂对100重量份 聚烯烃树脂，其中聚烯烃树脂是乙烯均聚物或乙烯和具有3个或更多个碳的烯烃的共聚物，其密度≥0.940g/ cm 3，SP收缩率（g'值） 小于1.0但不小于0.4，在2.16kg负荷下的熔体流动速率为0.15-20g / 10min，满足关系：MS> 110-100×log（MFR）（其中MS是熔体张力 mN），MFR为熔体流动速率）。 版权所有（C）2008，JPO＆INPIT