PROCESS MAKING POLYMER POLYOL HAVING MONODISPERSE DISPERSED POLYMER PARTICLES

Title:

PROCESS MAKING POLYMER POLYOL HAVING MONODISPERSE DISPERSED POLYMER PARTICLES

Document Type and Number:

WIPO Patent Application WO/2017/172417

Kind Code:

A8

Abstract:

Polymer polyols are made in a seeded process, in which styrene and acrylonitrile are polymerized in the presence of a base polyol, a seed dispersion and a solvent. The seed dispersion contains an unsaturated macromer. The process produces a polymer polyol in which the dispersed phase particles have a particle size of 1 to 3 μm and a particle size span of less than 1.25. The polymer polyols are very useful for making flexible polyurethane foam for cushioning applications, in which high airflows and good load bearing are needed.

Inventors:

CLAESSENS SWEN (NL)
DE SMET ANTOON (NL)
PEL GERARD (NL)
HUNTER DALE (US)
DELK VAN (US)

Application Number:

PCT/US2017/023464

Publication Date:

October 18, 2018

Filing Date:

March 21, 2017

Export Citation:

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Assignee:

DOW GLOBAL TECHNOLOGIES LLC (US)

International Classes:

C08G18/48; C08F212/10; C08F257/02; C08F283/06; C08G18/30; C08G18/40; C08G18/63; C08G18/76; C08G101/00