PROCESS FOR THE MANUFACTURE OF UREA-HCHO-isobutyraldehyde condes

Details PROCESS FOR THE MANUFACTURE OF UREA-HCHO-isobutyraldehyde condes PROCESS FOR THE MANUFACTURE OF UREA-HCHO-isobutyraldehyde condes

1976-11-15

1978-07-25

Schain, Howard E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

8186, 260849, 528259, 528261, C08G 1242, C08L 6124

Patent

active

041028406

ABSTRACT:
This invention describes a process for the manufacture of condensation products and compositions obtained thereby. The condensation products are prepared by the reaction of 2 to 3 moles of urea with 0,9 to 1,1 mole of formaldehyde and 1 mole of isobutyraldehyde in the presence of 0,2 to 1,0 equivalent of strong acids and 4 to 18 moles of water. The pH-value of the resulting products is adjusted to 7 to 9,5 and the water is partially to almost completely removed. Then the products are methylolated with 3 to 4 moles of formaldehyde. Finally the condensation products are etherified with low alcohols in usual manner. Used singly or together with other N-methylol compounds and their ethers with low alcohols, the products are useful compositions which are capable of rendering cellulosic textile materials and blends with synthetic fibres crease- and shrinkproof.

REFERENCES:
patent: 3518043 (1970-06-01), Petersen et al.

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