公开(公告)号：KR100840150B1

公开(公告)日：2008-06-23

申请号：KR1020070018575

申请日：2007-02-23

Applicant: 한국과학기술연구원

Inventor： 홍순만 ,  김진규 ,  송수창 ,  곽순종 ,  황승상 ,  홍보나

IPC: C08L23/00 ,  C08K3/04 ,  C08J9/04 ,  B82Y30/00

Abstract: A flame retardant polyolefin resin composition, and a method for preparing a polyolefin foamed particle by using the composition are provided to inhibit bleeding out and blooming, thereby improving melt welding and secondary foaming property. A flame retardant polyolefin resin composition comprises 100 parts by weight of a polyolefin resin; 1-30 parts by weight of a halogen-based flame retardant; 1-30 parts by weight of an ethylene-vinyl acetate resin; 1-50 parts by weight of nanoclay; 2-50 parts by weight of a foaming agent; and 150-500 a dispersion medium. Preferably the ethylene-vinyl acetate resin contains 1-35 wt% of a vinyl acetate group; and the nanoclay is an organic onium ion-intercalated nanoclay.

Abstract translation: 提供阻燃聚烯烃树脂组合物和通过使用该组合物制备聚烯烃发泡颗粒的方法以抑制渗出和起霜，从而改善熔融熔融和二次发泡性能。 阻燃聚烯烃树脂组合物包含100重量份的聚烯烃树脂; 1-30重量份的卤素类阻燃剂; 1-30重量份的乙烯 - 乙酸乙烯酯树脂; 1-50重量份的纳米粘土; 2-50重量份发泡剂; 和150-500分散介质。 优选地，乙烯 - 乙酸乙烯酯树脂含有1-35重量％的乙酸乙烯酯基; 并且纳米粘土是有机鎓离子插层的纳米粘土。

公开(公告)号：KR100830093B1

公开(公告)日：2008-05-19

申请号：KR1020070018569

申请日：2007-02-23

Applicant: 한국과학기술연구원

Inventor： 곽순종 ,  홍순만 ,  전재호 ,  홍보나 ,  정하영

IPC: C08J9/16 ,  C08J9/20 ,  C08J9/36 ,  C08F10/00

CPC classification number: C08J9/18 ,  C08J2203/06 ,  C08J2203/14 ,  C08J2323/02

Abstract: A method for preparing a polyolefin-based foamed particle is provided to improve the moldability of a polyolefin-based foamed particle and to reduce the cost for treating wasted water by reusing a dispersion medium. A method for preparing a polyolefin-based foamed particle comprises the steps of dispersing linoleic acid, a vegetable oil containing linoleic acid or an organic compound containing a fatty acid of lecithin in a dispersion medium; injecting a polyolefin-based resin particle and a foaming agent to the obtained one and increasing the temperature to prepare a polyolefin-based foamed particle; withdrawing a dispersion medium from the prepared polyolefin-based foamed particle to obtain a polyolefin-based foamed particle; and reusing the withdrawn dispersion medium to the preparation step of the polyolefin-based foamed particle.

Abstract translation: 提供了一种制备聚烯烃基发泡颗粒的方法以改善聚烯烃基发泡颗粒的成型性，并且通过重新使用分散介质来降低处理废水的成本。 制备聚烯烃基发泡颗粒的方法包括将亚油酸，含有亚油酸的植物油或含有卵磷脂的脂肪酸的有机化合物分散在分散介质中的步骤; 将聚烯烃类树脂颗粒和发泡剂注入到所得聚合物基树脂颗粒和发泡剂中，并提高温度以制备聚烯烃基发泡颗粒; 从制备的聚烯烃基发泡颗粒中取出分散介质以获得聚烯烃基发泡颗粒; 并将取出的分散介质重新用于聚烯烃类发泡颗粒的制备步骤。

公开(公告)号：KR100777214B1

公开(公告)日：2007-11-28

申请号：KR1020070018566

申请日：2007-02-23

Applicant: 한국과학기술연구원

Inventor： 곽순종 ,  홍순만 ,  전재호 ,  홍보나

IPC: C08J9/16 ,  C08J7/12 ,  C08F10/00

Abstract: A method for preparing a polyolefin-based foamed particle is provided to prevent the deterioration of formability and physical properties due to the dispersant remaining on the surface of particles by using no dispersant. A method for preparing a polyolefin-based foamed particle comprises the steps of introducing a hydrophilic functional group to the surface of a polyolefin-based resin particle; putting the surface-treated polyolefin-based resin particle, a foaming agent and an aqueous dispersion medium into a pressure-resistant container, heating them with stirring, and discharging the resin particle with an aqueous dispersion medium and a foaming agent under the circumstance of lower pressure than that of the container, thereby foaming the resin particle.

Abstract translation: 提供一种制备聚烯烃基发泡颗粒的方法，以防止由于不使用分散剂而使分散剂残留在颗粒表面上而导致成形性和物理性能的劣化。 一种聚烯烃类发泡粒子的制造方法，其特征在于，在聚烯烃类树脂粒子的表面引入亲水性官能团的工序; 将表面处理的聚烯烃类树脂颗粒，发泡剂和水分散介质放入耐压容器中，在搅拌下加热，并在较低的条件下用水分散介质和发泡剂将树脂颗粒排出 压力高于容器，从而使树脂颗粒发泡。