Preparation of nylon salts from diamine carbamates and dicarboxy

Details Preparation of nylon salts from diamine carbamates and dicarboxy Preparation of nylon salts from diamine carbamates and dicarboxy

1997-09-15

1999-02-23

Barts, Samuel

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From carboxylic acid or derivative thereof

562590, 564468, C08G 6928, C07C 5500, C07C20900

Patent

active

058745203

ABSTRACT:
Substantially anhydrous nylon salts are made in a solid state process in which solid diamine carbamates are contacted and mixed with solid dicarboxylic acids in a near instantaneous reaction to produce the salt, and preferably are prepared by mixing the solid diamine carbamates and the solid dicarboxylic acids under conditions of high shear.

REFERENCES:
patent: 5721403 (1998-03-01), Lang
F. D. Snell et al., Polyamides, General, Encyclopedia of Industrial Chemical Analysis, 17, 275-276; 293-295; 303-305, 1973.
W. Gerhartz et al., Fibers, 4. Synthetic Organic, Ullman's encyclopedia of industrial chemistry, A10 567-579, 1987.
H. F. Mark et al., Polyamides, Encyclopedia of polymer science and engineering, 11, 360-365, 1988.
V. Hopp, Organic raw materials and large-scale products: Industrial processes, Handbook of Applied Chemistry, IV/8-20-21, 1983.

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