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Polybutadiene-modified polymer polyol, foam prepared from polybutadiene-modified polymer polyol, and method for preparing same

A technology of polybutadiene and polyol, applied in the field of polymer polyol

Active Publication Date: 2017-08-08
COVESTRO LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Although progress has been made in viscosity reduction and increased solids content of polymer polyols, further improvements in viscosity reduction and increased solids content are still needed

Method used

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  • Polybutadiene-modified polymer polyol, foam prepared from polybutadiene-modified polymer polyol, and method for preparing same
  • Polybutadiene-modified polymer polyol, foam prepared from polybutadiene-modified polymer polyol, and method for preparing same
  • Polybutadiene-modified polymer polyol, foam prepared from polybutadiene-modified polymer polyol, and method for preparing same

Examples

Experimental program
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Embodiment

[0112] The following components were used in the examples.

[0113] Polyol A : Propylene oxide adduct of sorbitol, containing 16% ethylene oxide capping, hydroxyl value 28 and viscosity 1700mPa.s

[0114] Base Polyol A : Propylene oxide adduct of sorbitol and glycerol, containing 17% ethylene oxide capping, hydroxyl value 32 and viscosity 1100mPa.s

[0115] Base Polyol B : Propylene oxide adduct of glycerol, containing 20% ​​ethylene oxide capping, hydroxyl value 36 and viscosity 820mPa.s

[0116] CTAs : Isopropanol, chain transfer agent

[0117] SAN : Styrene: Acrylonitrile

[0118] TMI : Isopropenyl dimethyl benzyl isocyanate (unsaturated aliphatic isocyanate), sold by Cytec Industries sell

[0119] MDI : monomeric MDI, comprising about 42% by weight of the 4,4'-isomer of MDI, about 57% by weight of the 2,4'-isomer of MDI and the balance being the 2,2'-isomer of MDI body

[0120] TBPEH : tert-butyl peroxy-2-ethylhexanoate

[0121] AIBN : 2,2'-Azobis...

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Abstract

The present invention relates to polybutadiene modified polymer polyols comprising: one or more base polyols, at least one preformed stabilizer, one or more ethylenically unsaturated monomers and polybutadiene alkenes in the presence of at least one free radical polymerization catalyst and optionally one or more chain transfer agents. The polybutadiene present in these polybutadiene-modified polymer polyols can be obtained through pre-formed stabilizers, through polybutadiene-containing components added separately to the polymer polyols independently of the pre-formed stabilizers Or introduced into the polymer polyol through the combination of the two, the total amount of polybutadiene is 0.03 to 1.0% by weight, based on 100% by weight of the polymer polyol. The present invention also relates to processes for the preparation of these polybutadiene-modified polymer polyols, to foams prepared from these polybutadiene-modified polymer polyols and to the polymers modified from these polybutadiene-modified Process for making foam from polyols.

Description

Background technique [0001] The present invention relates to polybutadiene-modified polymer polyols, foams comprising these polybutadiene-modified polymer polyols, and to processes for their preparation. [0002] Various types of filler polyols are known and described in the prior art. Filler polyols are generally stable dispersions of solid particles in a liquid base polyol. More specifically, known filled polyols include, for example, polyisocyanate polyaddition (i.e., PIPA) polyols, polyurea and / or polyhydrazodicarbonamide (i.e., PHD) polyols and polymeric (i.e., PMPO) polyols . [0003] The basic patents on such polymer polyol compositions are Stamberger's US Reissue Patent 28,715 (a reissue of US Patent 3,383,351) and US Reissue Patent 29,118 (a reissue of US Patent 3,304,273). As described therein, stable dispersions of polymer particles in polyols can be prepared by polymerizing one or more ethylenically unsaturated monomers dissolved or dispersed in the polyol in th...

Claims

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Application Information

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IPC IPC(8): C08G65/48C08G18/48C08F8/00C08J9/00
CPCC08G18/4845C08G18/4883C08G18/69C08G18/81C08G2101/00C08G18/4841C08G18/632C08G18/635C08G18/636C08G18/638C08G18/657C08G18/6685C08G18/7621C08G18/7671C08G18/8108C08F283/06C08G18/3275C08G2110/0008C08F8/00C08G65/48C08G18/48
Inventor R·L·阿德金斯B·L·尼尔D·P·克里舍
Owner COVESTRO LLC
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