Preparation of anionic polymers for use as scale inhibitors and

Details Preparation of anionic polymers for use as scale inhibitors and Preparation of anionic polymers for use as scale inhibitors and

1977-12-22

1979-11-20

Wong, Jr., Harry

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

526 74, 526240, 526303, 525336, 525339, 525383, C08F22006, C08L 3302

Patent

active

041751000

ABSTRACT:
An anionic polymer of acrylamide having a skewed molecular weight distribution such that about 60% of said polymer has a molecular weight of about 500 to 2,000 and about 10% of said polymer has a molecular weight of about 4,000 to 12,000 has been discovered. The process of manufacturing this skewed molecular weight distribution anionic polymer is described. Its use as a scale inhibitor for controlling the deposition of adherent scales on the walls of vessels or pipes, and as an anti-precipitant for keeping alkaline earth cations in solution is also described. The use of the anionic polymer of acrylamide consisting of a skewed molecular weight could be used in recirculating water systems, boilers, and in evaporative and reverse osmosis desalination systems.

REFERENCES:
patent: 2886558 (1959-05-01), Friedlander
patent: 3493500 (1970-02-01), Volk et al.
patent: 3573263 (1971-03-01), Gill
patent: 3839500 (1974-10-01), Dexter

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