US 2010/0249359 A1 · WATER-STABLE CATALYSTS FOR POLYURETHANE MANUFACTURE

Abstract

A method of manufacturing a polyurethane compound comprises mixing together a polyol, a polyisocyanate compound and a catalyst and allowing the mixture to cure to form a polyurethane, and is characterised in that the catalyst is a neutral complex of a metal selected from Ti, Zr, Hf, Al, Fe, Bi or Sn and a multidentate organic ligand having: a) a number of anionic donor sites=x; b) a number of neutral donor sites, capable of forming a co-ordinate bond with the metal, =y; c) where x+y=from 5 to 8; d) x is from 2 to 4; e) the ligand molecule is of a size and conformation to enable each of the anionic donor sites and neutral donor sites to form a bond with the same metal atom.

Claims25

Dependent claims

A method of manufacturing a polyurethane compound by mixing together a polyol, a polyisocyanate compound and a catalyst and allowing the mixture to cure to form a polyurethane, wherein the catalyst comprises a metal-organic compound which is a complex of a metal selected from the group consisting of Ti, Zr, Hf, and Al and a multidentate organic ligand, wherein said multidentate organic ligand has

(a) a number of anionic donor sites=x;
and
(b) a number of neutral donor sites, capable of forming a co-ordinate bond with the metal, =y;
where x+y=from 5 to 8 and x is from 2 to 4;
said multidentate organic ligand molecule is of a size and conformation to enable each of the anionic donor sites and neutral donor sites to form a bond with the same metal atom.

2 more elements

A catalyst composition comprising:

(a) a metal-organic compound which is a complex of a metal selected from the group consisting of Ti, Zr, Hf, Al, Fe, Bi and Sn and
(i) a multidentate organic ligand derived from a ligand-forming compound having the following formula:
(HO(OC)w(CR1R2)z)2Y—(CR3R4)x—Y((CR1R2)z(CO)wOH)2 (Formula I)
in which:
Y is selected from P and N;
each R1, R2, R3 and R4 is independently selected from H, alkyl, aryl, substituted alkyl or substituted aryl;
each z is independently 1, 2, 3 or 4;
x represents the least number of C atoms between the Y atoms and is 2 or 3;
each w is independently 0 or 1;
and
(ii) at least one compound selected from the group consisting of a beta-diketone, beta-ketoester or beta-ketoamide, acid phosphate, phosphate esters, organic sulphonic acid, phosphoric acid, organic carboxylic acid, phenol and/or alpha-hydroxycarboxylic acid;
and
(b) optionally a diluent.

10 more elements

Dependencies are inferred from the claim text.

Facts

Application

12/665,377Filed 16 Jun 2008

Priority

GB 0711734.418 Jun 2007

Published

30 Sep 2010

Term ends

Not estimatedThe source records don’t support an estimate.

Classification13 codes

C07F 7/003
Compounds containing elements of Groups 4 or 14 of the Periodic Table: without C-Metal linkages
C07C 215/14
And acyclic: the nitrogen atom of the amino group being further bound to hydrocarbon groups substituted by amino groups
C08G 18/0885
Removal of water or carbon dioxide from the reaction mixture or reaction components: using additives, e.g. absorbing agents
C08G 18/10
Processes: prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step

Water-stable catalysts for polyurethane manufacture

Life of this patent

Water-stable catalysts for polyurethane manufacture

Life of this patent

Abstract

Claims25