Powdered cationic polyelectrolytes, based on acrylamide and quat

Details Powdered cationic polyelectrolytes, based on acrylamide and quat Powdered cationic polyelectrolytes, based on acrylamide and quat

1978-05-12

1982-03-09

Schofer, Joseph L.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526 71, 526 93, 526207, 526230, 526292, 526909, 526923, 528493, 528501, 528502, 528503, 5262922, 524922, 524555, 524815, C08F 200, C08F 614, C08F 2802, C08F22038

Patent

active

043190138

ABSTRACT:
Cationic polyelectrolytes in water-soluble powder form, applicable to the flocculation of municipal sludge comprise copolymers of acrylamide and of quaternized or salified dimethylamino-ethyl acrylate, containing in molar proportions 10 to 50% of cationic units distributed regularly along the copolymer chains. They have an intrinsic viscosity higher than 6 and a measured cationicity higher than 90% of the theoretical cationicity.

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