The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 09, 2014
Filed:
Jun. 16, 2008
Arran Alexander Dickon Tulloch, Northallerton, GB;
David Jenkins, Stockton on Tees, GB;
Joseph Atkinson, Middlesbrough, GB;
Mark Alexander Kent, Selby, GB;
Alan Cooper, Wingate, GB;
Arran Alexander Dickon Tulloch, Northallerton, GB;
David Jenkins, Stockton on Tees, GB;
Joseph Atkinson, Middlesbrough, GB;
Mark Alexander Kent, Selby, GB;
Alan Cooper, Wingate, GB;
Dorf Ketal Chemicals (India) Pvt. Ltd., Mumbai, IN;
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 characterized 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.