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1. 发明申请

WO1988008861A1 PREEXPANDED POLYOLEFIN RESIN PARTICLES AND PROCESS FOR THEIR PREPARATION 审中-公开
标题翻译：预制的聚烯烃树脂颗粒及其制备方法
公开(公告)号：WO1988008861A1
公开(公告)日：1988-11-17
申请号：PCT/JP1987000301
申请日：1987-05-13
申请人： KANEGAFUCHI KAGAKU KOGYO KABUSHIKI KAISHA , NAKAMURA, Kyoichi
发明人： KANEGAFUCHI KAGAKU KOGYO KABUSHIKI KAISHA
IPC分类号： C08J09/22
CPC分类号： C08J9/228 , C08J9/0061 , C08J2323/02 , C08L23/08 , C08L23/10 , C08L2666/04
摘要： A preexpanded polyolefin resin particle which comprises a base resin prepared by incorporating 0.1 to 10 parts by weight of a polymer having carboxyl groups in 100 parts by weight of a polyolefin resin and which has a cell diameter of 200 to 500 mum. Moldings formed by the expansion molding of the preexpanded particles in a mold show a lower shrinkage rate and a smaller deformation, thus showing a good and attractive appearance and being producible in an enhanced yield.

2. 发明申请

WO1998029485A1 EXPANDABLE POLYSTYRENE RESIN BEADS, PROCESS FOR THE PREPARATION OF THEM, AND FOAM MADE BY USING THE SAME 审中-公开
标题翻译：可膨胀的聚苯乙烯树脂珠，它们的制备方法和使用它们的泡沫
公开(公告)号：WO1998029485A1
公开(公告)日：1998-07-09
申请号：PCT/JP1997004555
申请日：1997-12-11
申请人： KANEKA CORPORATION , OHARA, Eiichi , YAMAGUCHI, Hidehiro , NAKAMURA, Kyoichi
发明人： KANEKA CORPORATION
IPC分类号： C08J09/22
CPC分类号： C08J9/18 , B29B9/10 , C08J2203/14 , C08J2325/04 , C08J2351/00
摘要： Expandable modified polystyrene resin beads (E) prepared by incorporating a blowing agent (D) into beads of a modified polystyrene resin (C) comprising a polystyrene resin (A) and conjugated diene polymer rubber particles (B) homogeneously dispersed in the resin (A), which beads have such a property that the rubber particles (B) do not undergo any substantial change in the shape during the expansion; and a modified polystyrene resin foam which has cell walls made of a modified polystyrene resin comprising a polystyrene resin and conjugated diene polymer rubber particles dispersed in the resin and a rate of fusion of 50 % or above and in which the rubber particles substantially retain their globular shapes in the cell walls. The foam is equivalent to high-impact polystyrene foams in both crack resistance and rate of fusion and is inexpensive.
摘要翻译：通过将发泡剂（D）掺入包含均匀分散在树脂（A）中的聚苯乙烯树脂（A）和共轭二烯聚合物橡胶颗粒（B）的改性聚苯乙烯树脂（C）的珠粒中制备的可发性改性聚苯乙烯树脂珠粒（E）），这些珠粒具有这样的性质：橡胶颗粒（B）在膨胀期间不会发生形状的任何显着变化; 和改性聚苯乙烯树脂发泡体，其具有由改性聚苯乙烯树脂制成的泡孔壁，该改性聚苯乙烯树脂包含分散在树脂中的聚苯乙烯树脂和共轭二烯聚合物橡胶颗粒，熔融率为50％或更高，并且其中橡胶颗粒基本保持其球形形状在细胞壁。泡沫相当于高抗冲聚苯乙烯泡沫，具有抗裂性和熔化速度，并且价格便宜。

3. 发明申请

WO1997048759A1 METHOD FOR POST-TREATING PREEXPANDED PARTICLES OF POLYOLEFIN RESIN 审中-公开
标题翻译：后处理聚烯烃树脂预处理颗粒的方法
公开(公告)号：WO1997048759A1
公开(公告)日：1997-12-24
申请号：PCT/JP1997002074
申请日：1997-06-16
申请人： KANEKA CORPORATION , OCHIKOSHI, Shinobu , FUKUI, Hisatoshi , NAKAMURA, Kyoichi , MIZUIKE, Hideya , AKAMATSU, Naruhiko
发明人： KANEKA CORPORATION
IPC分类号： C08J09/22
CPC分类号： C08J9/22 , B29C44/3461 , B29C44/5609 , C08J2323/02 , Y10S264/09 , Y10S521/918
摘要： A method for post-treating preexpanded particles of a polyolefin resin, characterized by placing preexpanded particles of a polyolefin resin, which has been expanded with the aid of a combustible foaming agent, in an extracting container filled with steam, additionally feeding steam into the extracting container, extracting a combustible foaming agent gas from the preexpanded particles, continuously or intermittently withdrawing steam containing the extracted combustible foaming agent gas, and liquefying the steam to separate and recover the combustible foaming agent gas. According to this method, a combustible foaming agent can be extracted from preexpanded particles in a short time and the extracted combustible foaming agent can be reused.
摘要翻译：一种用于后处理聚烯烃树脂的未开孔颗粒的方法，其特征在于将已经借助于可燃泡沫剂膨胀的聚烯烃树脂的预先加工的颗粒放置在填充有蒸汽的提取容器中，另外将蒸汽加入到提取物中容器，从预先吹放的颗粒中提取可燃发泡剂气体，连续或间歇地抽出含有提取的可燃发泡剂气体的蒸汽，并液化蒸汽以分离和回收可燃发泡剂气体。根据该方法，可以在短时间内从预烧颗粒中提取可燃性发泡剂，并且可以重新使用提取的可燃泡沫剂。

4. 发明申请

WO1997038048A1 HYDROUS POLYOLEFIN RESIN COMPOSITION, PREEXPANDED PARTICLES PRODUCED THEREFROM, PROCESS FOR PRODUCING THE SAME, AND EXPANDED MOLDINGS 审中-公开
标题翻译：水性聚烯烃树脂组合物，由其生产的预制颗粒，生产它们的方法和膨胀模具
公开(公告)号：WO1997038048A1
公开(公告)日：1997-10-16
申请号：PCT/JP1997001119
申请日：1997-04-01
申请人： KANEKA CORPORATION , MOGAMI, Kenji , MIHAYASHI, Tsuyoshi , NAKAMURA, Kyoichi , AKAMATSU, Naruhiko
发明人： KANEKA CORPORATION
IPC分类号： C08L23/00
CPC分类号： C08J9/18 , B29C44/3461 , C08J9/0061 , C08J2203/10 , C08J2323/02
摘要： A hydrous resin composition suitably employed in producing preexpanded polyolefin resin particles, which contains a polyolefin resin and a hydrophilic polymer and which has a water content of 1 to 50 % by weight; and preexpanded polyolefin resin particles obtained by preexpanding the hydrous resin composition and having an apparent expansion ratio of 5 to 60, a closed cell ratio of 80 to 100 %, and an average cell diameter of 50 to 500 mu m. The preexpanded particles can be produced without the use of a volatile expanding agent by dispersing resin particles produced from a resin composition containing a polyolefin resin and a hydrophilic polymer in a water-base dispersion medium in a closed vessel to thereby form a dispersion, heating the dispersion at a temperature not lower than the softening point of the polyolefin resin to thereby form hydrous resin particles having a water content of 1 to 50 % by weight and releasing the water-base dispersion from the closed vessel into an atmosphere of a pressure lower than the internal pressure of the closed vessel to thereby expand the hydrous resin particles. When the release of the dispersion from the closed vessel is conducted after introducing nitrogen gas, air or an inorganic gas composed mainly thereof into the closed vessel so that the internal pressure is set to be 25 - 75 kg/cm G, preexpanded particles capable of providing foams of a high expansion ratio and excellent properties can be obtained.
摘要翻译：一种适用于生产预聚酚醛树脂颗粒的含水树脂组合物，其含有聚烯烃树脂和亲水性聚合物，其水含量为1〜50重量％通过将含水树脂组合物预先开孔，表观膨胀率为5〜60，闭孔率为80〜100％，平均泡孔直径为50〜500μm而得到的预成型聚烯烃树脂颗粒。通过将由含有聚烯烃树脂和亲水性聚合物的树脂组合物制备的树脂颗粒分散在密封容器中的水性分散介质中，可以不使用挥发性发泡剂来制备预扩展颗粒，从而形成分散体，加热在不低于聚烯烃树脂的软化点的温度下分散，从而形成含水量为1-50重量％的含水树脂颗粒，并将水基分散体从密闭容器中释放到压力低于封闭容器的内部压力，从而膨胀含水树脂颗粒。当将氮气，空气或主要组成的无机气体引入密封容器中以使内部压力设定为25-75kg / cm 2 G之后，从密闭容器中释放分散体时，预先涂布可以获得能够提供高膨胀率的泡沫和优异性能的颗粒。

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