Water-stable catalysts for polyurethane manufacture

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United States of America Patent

PATENT NO 8829145
SERIAL NO

12665377

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Abstract

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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.

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Patent Owner(s)

Patent OwnerAddress
DORF KETAL CHEMICALS (INDIA) PVT LTD#1 DORF KETAL TOWERS D'MONTE STREET ORLEM MALAD WEST MUMBAI 400064

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Atkinson, Joseph Middlesbrough, GB 5 42
Cooper, Alan Wingate, GB 15 120
Jenkins, David Stockton on Tees, GB 95 1953
Kent, Mark Alexander Selby, GB 3 1
Tulloch, Arran Alexander Dickon Northallerton, GB 5 11

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