公开(公告)号：US20020086946A1

公开(公告)日：2002-07-04

申请号：US09942752

申请日：2001-08-31

Applicant: TOSOH CORPORATION

Inventor： Shigehiko Abe

IPC: C08L023/04 ,  C08J009/00

CPC classification number: C08J9/0061 ,  C08J9/00 ,  C08J9/107 ,  C08J2201/024 ,  C08J2323/02 ,  C08J2491/00 ,  C08L23/0815 ,  C08L91/06 ,  C08L2203/14 ,  C08L2312/00

Abstract: A high-expanded crosslinked foam having excellent flexibility, toughness, heat resistance and compressibility, a smooth surface and uniform cells, and a polyolefin resin composition to be used therefore are provided. A polyolefin-based crosslinked foam has the following characteristics (a) to (c) and is obtained by the crosslinked foaming of a foaming polyolefin resin composition comprising a polyolefin resin composition and a foaming agent: (a) Gel fraction is from 10% to 90%; (b) Degree of swelling is 30 or less; and (c) When glass transition point determined from the temperature dependence of dynamic viscoelasticity is represented by the peak of tan null determined by the measurement of dynamic viscoelasticity at a frequency of 10 Hz, there is observed no peak or one peak, if any, and the ratio null of storage modulus at 0null C. (Enull0) to storage modulus at 100null C. (Enull100) (nullnulllogEnull0/Enull100) is from 10 to 30.

Abstract translation: 因此，提供了具有优异的柔软性，韧性，耐热性和压缩性，光滑表面和均匀的电池的高膨胀交联泡沫，以及因此使用的聚烯烃树脂组合物。 聚烯烃类交联泡沫体具有以下特征（a）〜（c），通过使聚烯烃树脂组合物和发泡剂发泡聚烯烃树脂组合物的交联发泡得到：（a）凝胶分数为10〜 90％ （b）溶胀度为30以下; 和（c）当由动态粘弹性的温度依赖性确定的玻璃化转变点由通过在10Hz的频率下测量动态粘弹性而确定的tanδ的峰值表示时，观察到没有峰或一个峰（如果有的话） 在0℃下的储能模量（E'0）与100℃下的储能模量（E'100）（α= logE'0 / E'100）的比α为10〜30。

公开(公告)号：US20030199597A1

公开(公告)日：2003-10-23

申请号：US10412272

申请日：2003-04-14

Applicant: TOSOH CORPORATION

Inventor： Shigehiko Abe

IPC: C08J009/00

CPC classification number: C08J9/06 ,  C08J9/0061 ,  C08J2201/024 ,  C08J2323/02 ,  C08J2323/16 ,  C08J2423/00 ,  C08L23/06 ,  C08L23/0815 ,  C08L51/06 ,  C08L2203/14 ,  C08L2666/04 ,  C08L2666/24

Abstract: A silane-crosslinking expandable polyolefin resin composition that is flowable before foaming and composition, does not cause degassing even when foaming is carried out immediately after heat molding without the conventional crosslinking operation, and gives a crosslinked foam having superior heat resistance (heat deformation properties) after the foaming. The silane-crosslinking expandable polyolefin resin composition includes 100 parts by weight of a mixture of 5-90% by weight of a silane-grafted polyethylene resin obtained by melt mixing 100 parts by weight of LLDPE having a molecular weight distribution of 5 or less and a density of 0.87-0.945 g/cm3, 0.1-5 parts by weight of a vinyl-functional silane compound and 0.01-0.5 parts by weight of a free radical generator, and 95-10% by weight of a polyolefin resin; and 2-20 parts by weight of a specified organic blowing gas.

Abstract translation: 在发泡和组合之前可流动的硅烷交联的可发性聚烯烃树脂组合物即使在没有常规交联操作的热成型后立即进行发泡也不会引起脱气，并且得到具有优异的耐热性（热变形性）的交联泡沫， 发泡后。 硅烷交联的可发性聚烯烃树脂组合物包括100重量份的5-90重量％的通过将100重量份的分子量分布为5或更小的LLDPE熔融混合而获得的硅烷接枝聚乙烯树脂的混合物和 密度为0.87-0.945g / cm 3，0.1-5重量份的乙烯基官能的硅烷化合物和0.01-0.5重量份的自由基发生剂，以及95-10重量％的聚烯烃树脂 ; 和2-20重量份的特定的有机吹气。