基本信息:
- 专利标题： CROSSLINKED POLYOLEFIN FOAM AND PROCESS FOR PRODUCING SAME
- 申请号：PCT/US2020/062831 申请日：2020-12-02
- 公开(公告)号：WO2021133522A1 公开(公告)日：2021-07-01
- 发明人： CHAUDHARY, Bharat I. , YANG, Jian
- 申请人： DOW GLOBAL TECHNOLOGIES LLC
- 申请人地址： 2211 H.H. Dow Way
- 专利权人： DOW GLOBAL TECHNOLOGIES LLC
- 当前专利权人： DOW GLOBAL TECHNOLOGIES LLC
- 当前专利权人地址： 2211 H.H. Dow Way
- 代理机构： BARTHEL, Ted J.
- 优先权： US62/953,751 2019-12-26
- 主分类号： C08J9/14
- IPC分类号： C08J9/14 ; C08J2201/026 ; C08J2201/03 ; C08J2203/14 ; C08J2300/108 ; C08J2323/08 ; C08J2423/06 ; C08J9/141
摘要：
The process disclosed includes an extruder under extrusion conditions at a temperature from 50°C to 250°C, and a polymer composition. The polymer composition includes (A) greater than or equal to 5 wt% of a silane functionalized olefin-based polymer with first melting temperature, Tm1, (B) optionally, a nonsilane functionalized polyolefin, with second melting temperature, Tm2, (C) a highly effective silanol condensation catalyst (HEC), (D) a permeability modifier, and (E) optionally, a scorch inhibitor. The process includes introducing a physical blowing agent into the polymer composition to form a foamable composition. The foamable composition is cooled to a foaming temperature from 10°C less than to 10°C greater than Tm1. The foamable composition from an extruder exit die to form a foam composition. The foam composition is moisture cured to form a crosslinked foam composition having a density from 0.010 g/cc to 0.200 g/cc, and a gel content from 5% to 100%.
IPC结构图谱:
| C | 化学；冶金 |
| --C08 | 有机高分子化合物；其制备或化学加工；以其为基料的组合物 |
| ----C08J | 加工；配料的一般工艺过程；不包括在C08B，C08C，C08F，C08G或C08H小类中的后处理 |
| ------C08J9/00 | 高分子物质加工成多孔或蜂窝状制品或材料：它们的后处理 |
| --------C08J9/04 | .使用由预先加入的发泡剂所产生的发泡气体 |
| ----------C08J9/06 | ..用化学发泡剂 |
| ------------C08J9/14 | ...有机的 |