C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
402/151, 402/153
C07D 233/74 (2006.01) C07D 239/22 (2006.01) C08G 18/50 (2006.01) C08G 18/52 (2006.01) C08G 65/333 (2006.01) C08G 75/02 (2006.01)
Patent
CA 1080227
A B S T R A C T There is disclosed a process for preparing novel compounds having terminal amino groups of the general formula Image (I) wherein z is 2 or 3, X is oxygen or sulfur and R stands for a z-valent group of the formula: Image (II) wherein k is 1 or 2, A is alkylidene or alkylated or non- alkylated vinylene, Y stands for B when k = 1 and z = 2, for -CH2- when k = 2 and z = 2 and for -CH2-?H-CH2 when k = 2 and z = 3, and B in each case represents a divalent polyalkylene ether group or a polyalkylene thioether group such as it is obtained by removal of the hydroxyl or mercapto group from a polyalkylene ether diol or a polyalkylene thioether dithiol of a molecular weight of 100 up to 15000 The novel compounds of the present invention are useful in preparing polyureas showing increased thermal stability and improved tensile and structural strength.
264244
Schmidt Oskar
Sibral Walter
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