Poly (thio) ethers having terminal amino groups, process for...

Details Poly (thio) ethers having terminal amino groups, process for... Poly (thio) ethers having terminal amino groups, process for...

C - Chemistry, Metallurgy

07

D

402/168, 260/314

C07D 235/26 (2006.01) C08G 18/46 (2006.01) C08G 18/50 (2006.01) C08G 18/52 (2006.01) C08G 65/333 (2006.01) C08G 75/02 (2006.01)

Patent

CA 1080719

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 X is oxygen or sulfur and R stands for a group of the formula: Image (II) wherein R1 to R4 represent hydrogen or halogen and B stands for a divalent polyalkylene ether group or a polyalkylene thioether group such as it is obtained by removing the hydroxyl or mercapto groups from a polyalkylene ether diol or a poly- alkylene thioether dithiol of a molecular weight of 100 to 15000, in particular of 500 to 3000. The novel compounds of the present invention are useful in the production of polyureas showing increased thermal stability and improved tensile and structural strength.

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