公开(公告)号：US12006413B2

公开(公告)日：2024-06-11

申请号：US17573948

申请日：2022-01-12

Applicant: Covestro LLC

Inventor： Rick Adkins ,  Shriniwas Chauk ,  Jose Pazos

IPC: C08F290/06 ,  C08G18/08 ,  C08G18/18 ,  C08G18/22 ,  C08G18/24 ,  C08G18/32 ,  C08G18/48 ,  C08G18/63 ,  C08G18/65 ,  C08G18/67 ,  C08G18/72 ,  C08G18/75 ,  C08G18/76 ,  C08G18/80 ,  C08G18/81 ,  C08J9/00 ,  C08J9/12

CPC classification number: C08J9/0061 ,  C08G18/0876 ,  C08G18/1833 ,  C08G18/3206 ,  C08G18/632 ,  C08G18/636 ,  C08G18/6564 ,  C08G18/7621 ,  C08J9/125 ,  C08J2205/06 ,  C08J2375/08

Abstract: Polymer polyols (“PMPOs”), processes for their production, and the use of such PMPOs, particularly in the production of flexible polyurethane foams. The PMPOs are produced using an ethylenically unsaturated composition that includes a crosslinker that results in crosslinks in the PMPO polymer particles that may decompose when exposed to flame temperatures. The PMPOs is capable of providing a flexible polyurethane foam that may exhibit combustibility resistance properties.

公开(公告)号：US20230220174A1

公开(公告)日：2023-07-13

申请号：US17573948

申请日：2022-01-12

Applicant: Covestro LLC

Inventor： Rick Adkins ,  Shriniwas Chauk ,  Jose Pazos

IPC: C08J9/00 ,  C08G18/63 ,  C08G18/08 ,  C08G18/32 ,  C08G18/65 ,  C08G18/76 ,  C08G18/18 ,  C08J9/12

CPC classification number: C08J9/0061 ,  C08G18/632 ,  C08G18/636 ,  C08G18/0876 ,  C08G18/3206 ,  C08G18/6564 ,  C08G18/7621 ,  C08G18/1833 ,  C08J9/125 ,  C08J2205/06 ,  C08J2375/08

Abstract: Polymer polyols (“PMPOs”), processes for their production, and the use of such PMPOs, particularly in the production of flexible polyurethane foams. The PMPOs are produced using an ethylenically unsaturated composition that includes a crosslinker that results in crosslinks in the PMPO polymer particles that may decompose when exposed to flame temperatures. The PMPOs is capable of providing a flexible polyurethane foam that may exhibit combustibility resistance properties.

公开(公告)号：US10669368B2

公开(公告)日：2020-06-02

申请号：US13836114

申请日：2013-03-15

Applicant: COVESTRO LLC

Inventor： Edward P. Browne ,  Jose Pazos

IPC: C08G65/12 ,  C08G18/48 ,  C08G65/26 ,  C08G65/08 ,  C08G101/00

Abstract: This invention relates to a semi-batch process for the production of polyoxyalkylene polyether polyols. These polyoxyalkylene polyether polyols have hydroxyl (OH) numbers of from 112 to 400. This process comprises establishing oxyalkylation condition in a reactor in the presence of a DMC catalyst, continuously introducing alkylene oxide and a suitable starter into the reactor, and recovering an oxyalkyated polyether polyol. The oxyalkylation initially occurs at a temperature that is sufficiently high enough to avoid or prevent deactivation of the DMC catalyst, or for from 2% to 50% of the total oxide feed amount, and the oxyalkylation is then continued at a lower temperature.