公开(公告)号：WO2021050622A1

公开(公告)日：2021-03-18

申请号：PCT/US2020/050039

申请日：2020-09-10

Applicant: LUBRIZOL ADVANCED MATERIALS, INC.

Inventor： SOLOUKI BONAB, Vahab ,  KIM, Kenneth H. ,  SHANKAR, Aditi

IPC: B29C64/00 ,  B33Y70/00 ,  C08G18/00

Abstract: The invention relates to an article made from a thermoplastic polyurethane composition having that has high flex modulus, low density, and is capable of withstanding repeated cyclic deformation. The thermoplastic polyurethane composition is formed from the reaction product of a polyol component, which includes a blend of a polyether polyol, such as poly(tetramethylene ether glycol), and polybutadiene diol, a diisocyanate component, and a chain extender component.

公开(公告)号：WO2015148248A1

公开(公告)日：2015-10-01

申请号：PCT/US2015/021406

申请日：2015-03-19

Applicant: LUBRIZOL ADVANCED MATERIALS, INC.

Inventor： VONTORCIK, JR., Joseph J. ,  FARKAS, Julius ,  JUNG, Ungyeong ,  KIM, Kenneth H.

IPC: C08G18/66 ,  C08G18/76

CPC classification number: C08G18/3206 ,  B29C45/0001 ,  B29C67/246 ,  B29K2075/00 ,  B29K2105/04 ,  C08G18/4238 ,  C08G18/4277 ,  C08G18/48 ,  C08G18/66 ,  C08G18/76 ,  C08G2101/0008 ,  C08G2101/0083 ,  C08G2120/00

Abstract: The compositions described herein provide flexible polyurethane injection molded foam made from the reaction product of at least one polyol, at least one isocyanate, and at least one chain extender, where the polyurethane has: (a) a weight average molecular weight of 120,000 to 500,000, and (b) a dispersity (Mw/Mn) of 1.85 to 2.51. The compositions further include superior foams where the flexible polyurethane injection molded foam has: a vertical rebound, as measured by ASTM D2632, of at least 30%; a compression set at room temperature, as measured by ASTM D395, of no more than 25%; a compression set at 50C, as measured by ASTM D395, of no more than 50%; and an Asker C hardness, as measured by ASTM D2240, of 40 to 65. Also provided are process of making the same and articles made from the same.

Abstract translation: 本文所述的组合物提供由至少一种多元醇，至少一种异氰酸酯和至少一种扩链剂的反应产物制成的柔性聚氨酯注塑泡沫，其中聚氨酯具有：（a）重均分子量为12万至500,000 ，（b）分散度（Mw / Mn）为1.85〜2.51。 组合物还包括优异的泡沫，其中柔性聚氨酯注塑泡沫具有：通过ASTM D2632测量的垂直回弹至少30％; 通过ASTM D395测量的在室温下的压缩永久变形不超过25％; 通过ASTM D395测量的在50℃下的压缩永久变形不大于50％; 和通过ASTM D2240测量的Asker C硬度为40至65.还提供了制备它们的方法和由其制备的制品。