Unlock instant, AI-driven research and patent intelligence for your innovation.

Polyether polyol and polyol system liquid

A technology of polyether polyol and polyoxyalkylene chain, which is applied in the field of polyether polyol, can solve the problems such as the decrease of the physical properties of polyurethane foam, and achieve the effect of high degree of design freedom and excellent storage stability

Active Publication Date: 2020-09-25
ASAHI GLASS CO LTD
View PDF11 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, when the polyol system liquid is stored for a long time, the physical properties of the polyurethane foam produced using the polyol system liquid may decrease, and the polyol system liquid is required to have storage stability.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Polyether polyol and polyol system liquid
  • Polyether polyol and polyol system liquid
  • Polyether polyol and polyol system liquid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0162] Hereinafter, although an Example demonstrates this invention in more detail, this invention is not limited to these Examples.

[0163]

[0164] [Hydroxy value]

[0165] The hydroxyl value of the polyether polyol and the hydroxyl value of the polymer-dispersed polyol were measured according to JIS K1557-1B method (2007 edition).

[0166] [Unsaturation]

[0167] The degree of unsaturation of a polyol is measured in accordance with JIS K1557-3 (2007 edition).

[0168] [Viscosity (25°C)]

[0169] The viscosity of the polyol is measured according to JIS K1557-5 (2007 edition).

[0170] [EO content rate]

[0171] Determination of polyoxyalkylene polyol by 300MHz NMR device 1 In the H-NMR spectrum, the EO content (mass %) was calculated from the integrated value of the peak derived from the methyl group and the peak derived from the methylene group.

[0172] [Moles of terminal EO added]

[0173] The terminal EO added mole number was calculated by the following calcula...

preparation example 1

[0207] [Preparation Example 1: Preparation of TBA-DMC catalyst (slurry S1)]

[0208] A zinc hexacyanocobaltate complex (hereinafter referred to as "TBA-DMC catalyst") coordinated with t-butanol (hereinafter referred to as "TBA") was prepared in the following manner.

[0209] In the presence of a KOH catalyst, PO ring-opening addition polymerization is carried out in propylene glycol, and through dealkalization and purification, polyoxypropylene glycol (hereinafter referred to as "polyoxypropylene glycol") with an average number of hydroxyl groups in each molecule of 2 and an Mn of 2000 is obtained. Alcohol P1").

[0210] A zinc chloride aqueous solution consisting of 10.2 g of zinc chloride and 10 g of water was placed in a 500 mL flask. While stirring the aqueous zinc chloride solution at 300 rpm, an aqueous solution of potassium hexacyanocobaltate consisting of 4.2 g of potassium hexacyanocobaltate and 75 g of water was added dropwise to the aqueous zinc chloride solution o...

preparation example 2

[0212] [Preparation Example 2: Preparation of TBA-DMC catalyst (slurry S2)]

[0213] A slurry of a TBA-DMC catalyst (hereinafter referred to as "slurry S2") was prepared by the method described in paragraphs [0094] to [0099] of Japanese Patent No. 4556496.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
degree of unsaturationaaaaaaaaaa
hydroxyl valueaaaaaaaaaa
lengthaaaaaaaaaa
Login to View More

Abstract

Provided is a polyether polyol having high degree of freedom in the design of a polyurethane foam, and having excellent storage stability of a polyol system liquid. The polyether polyol has a polyoxyalkylene chain consisting of oxyalkylene units, has a degree of unsaturation of 0.020 meq / g or less, has a hydroxyl value of 1-80 mgKOH / g, contains 0-50 mass% of an oxyethylene unit, and contains 1,000mass ppm or less of an ultra-high molecular weight component having a molecular weight of 12-46 times the number average molecular weight. The number average molecular weight is a polystyrene equivalent molecular weight measured by a gel permeation chromatography (GPC) method, and the content of the ultra-high molecular weight component is a value measured by a high performance liquid chromatography (HPLC) method using a charged aerosol detector (CAD).

Description

technical field [0001] The present invention relates to a polyether polyol and a polyol system liquid using the polyether polyol. Background technique [0002] A polyurethane foam can be produced by reacting a polyol and a polyisocyanate compound in the presence of a urethanization catalyst and a blowing agent. [0003] Specifically, a polyurethane foam can be produced by separately preparing a polyol system liquid containing a polyol, a blowing agent, a catalyst, and the like, and a polyisocyanate compound, mixing the two, and reacting them. [0004] Polyols are sometimes stored separately from blowing agents, catalysts, etc., and are sometimes stored in the state of polyol system liquid. [0005] If it is stored in the state of a polyol system liquid, it is not necessary to install a storage tank for separately storing each component, which is advantageous in terms of downsizing production facilities and the like. [0006] However, when stored in the state of the polyol ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08G65/08C08G18/00C08G18/48C08G101/00
CPCC08G65/08C08G18/2063C08G18/1833C08G18/4072C08G18/4825C08G18/4829C08G18/4837C08G18/4841C08G18/4866C08G18/632C08G18/7621C08G18/7664C08G18/7607C08G18/3275C08G18/3206C08G2110/0058C08G2110/0008C08G2110/0083C08G18/4804C08G18/4812C08G18/4808C08G18/6688C08G18/485C08G65/12
Inventor 冈田伸治宫川贺仁铃木知志佐佐木孝之伊藤高
Owner ASAHI GLASS CO LTD