Patent number: 7034103
Abstract: The present invention provides process for producing polyols using a crystalline, hydroxide containing double metal cyanide (DMC) catalyst of the formulae (I) or (II), M1x[M2(CN)6]yOH.L??(I) M1x[M2(CN)6]y.zM1(OH)q.L??(II) wherein M1 represents a metal selected from Zn+2, Fe+2, Ni+2, Mn+2, Co+2, Sn+2, Pb+2, Fe+3, Mo+4, Mo+6, Al+3, V+4, V+5, Sr+2, W+4, W+6, Cu+2 and Cr+3, M2 represents a metal selected from Fe+2, Fe+3, Co+2, Co+3, Cr+2, Cr+3, Mn+2, Mn+3, Ir+3, Ni+2, Rh+3, Ru+2, V+4 and V+5, L represents an organic ligand and x, y and q are chosen to maintain electroneutrality. The polyols of the present invention may find use in the preparation of polyurethanes.
Type:
Grant
Filed:
January 5, 2005
Date of Patent:
April 25, 2006
Assignee:
Bayer Antwerpen N.V.
Inventor:
George G. Combs
Patent number: 7034156
Abstract: The present invention relates to a novel process for preparing known 1-amino-3-phenyluracil derivatives, to novel 1-amino-6-hydroxy-3-phenyldihydro-2,4(1H,3H)pyrimidinedione derivatives of the formula (II) in which R1 is hydrogen, cyano, nitro or halogen, R2 is cyano, nitro, halogen or optionally substituted alkyl or alkoxy, R3 is hydrogen, hydroxyl, mercapto, amino, hydroxyamino, hydrazino, halogen, or one of the radicals —R6, -Q-R6, —NH—R6, —NH—O—R6, —NH—SO2—R6, —N(SO2—R6)2, —CQ1-R6, —CQ1-Q2-R6, —CQ1-NH—R6, -Q2-CQ1-R6, —NH—CQ1-R6, —N(SO2—R6)(CQ1-R6), -Q2-CQ1-Q2-R6, —NH—CQ1-Q2-R6 or -Q2-CQ1-NH—R6, where Q is O, S, SO or SO2, Q1 and Q2 are each independently oxygen or sulphur and R6 is optionally substituted alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkylalkyl, aryl, arylalkyl, heterocyclyl or heterocyclylalkyl, R4 is hydrogen, halogen or optionally substituted alkyl, and R5 is fluorine- and/or chlorine-substituted alkyl, as intermediates for the 1-amino-3-phenyluracil derivatives, and to a process f
Type:
Grant
Filed:
April 25, 2002
Date of Patent:
April 25, 2006
Assignee:
Bayer CropScience AG
Inventors:
Jörn Stölting, Dorothee Hoischen, Roland Andree, Karl-Heinz Linker, Holger Weintritt, Heinz-Jürgen Wroblowsky