Use of guanidine reaction products in the production of polyurethane systems

Patent metadata

Field	Value
Publication number	US-10100148-B2
Application number	US-201415035902-A
Country	US
Kind code	B2
Filing date	Oct 23, 2014
Priority date	Nov 18, 2013
Publication date	Oct 16, 2018
Grant date	Oct 16, 2018

Abstract

The present invention provides specific alkoxylation products, a process for preparing them, compositions which comprise these alkoxylation products, and the use thereof.

First claim

The invention claimed is:

1. A process for production of polyurethane systems by reacting at least one polyol component with at least one isocyanate component in the presence of one or more catalysts for the isocyanate-polyol and/or isocyanate-water reactions and/or the trimerization of isocyanate, wherein said reacting is carried out in the presence of one or more compounds obtainable by reacting a guanidine salt with a polyamine comprising a compound of formula (I)
H 2 N—CH 2 —CH 2 —NH—(CH 2 —CH 2 —NH) x —CH 2 —CH 2 —NH 2   (I)

where x=0 to 4.

2. The process according to claim 1 , wherein
x=1 to 3.

3. The process according to claim 1 , wherein said reacting the guanidine salt with the polyamine is carried out with a molar ratio of guanidine salts to the polyamines which is in the range from 5:1 to 1:5.

4. The process according to claim 1 , wherein the guanidine salt used is guanidine hydrochloride, guanidine sulphamate, guanidine phosphate, guanidine acetate, guanidine carbonate, guanidine sulphate, guanidine thiocyanate or guanidine nitrate.

5. The process according to claim 1 , wherein said reacting is effected in the presence of at least one compound of formula (II)
H[—(HN—CH 2 —CH 2 ) a —NH—C(═NHR + X − )] c —NH—(CH 2 —CH 2 —NH—) b H  (II)

where
a=independently 0 to 6
b=independently 0 to 6
c=independently 1 to 4
R=H,
X −= anion.

6. The process according to claim 5 , wherein a is =b in the compound of formula (II), with a =b =2 to 6, while c is equal to 1 or 2, and R is =H.

7. The process according to claim 5 , wherein compounds of formula (II) comprise at least 40 wt% of compounds obtainable by reacting a guanidine salt with a compound of formula (I).

8. The process according to claim 1 , wherein the compounds obtainable by reacting a guanidine salt with the polyamine are used in a mass fraction of 0.01 to 5 parts, based on 100 parts of polyol component.

9. The process according to claim 1 , wherein the polyurethane system produced is a polyurethane foam.

10. The process according to claim 2 , wherein x is from 1 to 3.

11. The process according to claim 2 , wherein x is 1.

12. The process according to claim 2 , wherein said reacting the guanidine salt with the polyamine is carried out with a molar ratio of guanidine salts to the polyamines which is in the range from 1:1 to 1:3.

13. The process according to claim 2 , wherein said reacting the guanidine salt with the polyamine is carried out with a molar ratio of guanidine salts to the polyamines which is in the range from 2:3 to 1:3.

14. The process according to claim 5 , wherein
a=independently 3 to 5,
b=independently 3 to 5,
c=independently 1 or 2,
R=H,
and
X − = chloride.

Assignees

• Evonik Degussa Gmbh

Inventors

• Emmrich-Smolczyk Eva
• Fiedel Olga
• Vidakovic Mladen

Classifications

• C08G2410/00

  Soles · CPC title

• C08G18/1825

  having hydroxy or primary amino groups · CPC title

• C08G18/5096

  containing silicon · CPC title

• C08G18/1808 Primary

  having alkylene polyamine groups · CPC title

• C08G18/4816

  mixtures of two or more polyetherpolyols having at least three hydroxy groups · CPC title