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

High functionality aromatic polyesters, polyol blends comprising the same and resultant products therefrom

A technology of polyester polyol and polyether polyol, which is applied in the field of aromatic polyester polyol and polyester polyol, and can solve problems such as low hydrocarbon compatibility

Active Publication Date: 2013-07-31
DOW GLOBAL TECH LLC
View PDF17 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Another disadvantage of aromatic-based polyester polyols in formulations with increased emphasis on the use of non-ozone-reducing blowing agents such as hydrocarbons is that they often lead to low hydrocarbon compatibility

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
  • High functionality aromatic polyesters, polyol blends comprising the same and resultant products therefrom
  • High functionality aromatic polyesters, polyol blends comprising the same and resultant products therefrom
  • High functionality aromatic polyesters, polyol blends comprising the same and resultant products therefrom

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-3

[0127] Polyurethane foams for refrigerators were prepared using the polyester polyols described above. The polyol formulations are shown in Table 1.

[0128] Table 1

[0129] Polyol Side Components

number of copies

VORANOL RN482

40

Polyol 1

15

Polyol 2

13

VORANOL640

7

polyester

25

Polycat5

1.5

DABCO TMR-30

2.25

NIAX L-9000

2.0

[0130] water

2.1

Cyclopentane

16

total polyols

123.85

Isocyanate Side Components

PAPI27

141.5

[0131] The properties of the reference formulations and those formulations containing polyesters 1-3 are given in Table 2 together with the stability of the polyol formulations.

[0132] Table 2

[0133]

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
viscosityaaaaaaaaaa
viscosityaaaaaaaaaa
viscosityaaaaaaaaaa
Login to View More

Abstract

The present invention discloses aromatic polyester polyols suitable for blending with other polyols or other materials mutually compatible with the polyester polyols to obtain polyurethane and polyisocyanurate products. In particular the present invention discloses polyester polyols comprising the reaction of: A) an aromatic component comprising 80 mole percent or greater of terephthalic acid; B) a polyether polyol having a nominal functionality greater than 2 and less than or equal to 4, a molecular weight of 250 to 1000 and has a polyoxypropylene content of at least 70 % by weight of the polyol; and C) a glycol which is other than B and has a molecular weight from 60 to 250; wherein A, B, and C are present in the reaction on a percent weight bases of 20 to 60 weight percent A); 15 to 70 weight percent of B); and 10 to 50 weight percent of C).

Description

[0001] The present invention generally relates to certain polyester polyols suitable for use in blending with other polyols or other materials which are compatible with said polyester polyols to obtain polyurethane and polyisocyanurate products. Background technique [0002] The use of polyols for the preparation of polyurethanes by reacting polyols with polyisocyanates in the presence of catalysts and optionally other ingredients is well known. Aromatic polyester polyols are a class of polyols that are widely used in the preparation of polyurethane and polyurethane-polyisocyanurate foams and resins. [0003] Aromatic polyester polyols are attractive in making polyurethane products because they tend to be low cost and suitable for many end use applications where the products have good properties. A widely used class of aromatic polyester polyols are those produced by the esterification of phthalic acid or phthalic anhydride with aliphatic polyols such as diethylene glycol. Su...

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): C08G63/672C08L67/02C08L75/06
CPCC08G63/668C08G2101/0025C08G2101/005C08G18/4252C08G18/4241C08L67/00C08G18/4018C08G18/482C08G2110/0025C08G2110/005C08L71/02C08G18/42C08G63/672C08G2101/00C08L67/02C08L75/06
Inventor J.希门尼斯裴佑晟G.Y.里斯塔M.Y.盖尔弗V.帕伦蒂H.克雷默
Owner DOW GLOBAL TECH LLC