Scale and settlement inhibiting agent for use in treating indust

Details Scale and settlement inhibiting agent for use in treating indust Scale and settlement inhibiting agent for use in treating indust

1987-09-30

1989-08-15

Schofer, Joseph L.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

5263297, 525201, 525221, 525222, 525227, 210701, C08F 2004, C08F12018

Patent

active

048576220

ABSTRACT:
An agent to be used to treat water and aqueous media contacting heat transfer surfaces for inhibiting the build-up of scale and settlement of dissolved alkaline earth materials in water and aqueous media, which agent consists of acrylic and methacrylic acid polymers and/or copolymers and is characterized in that it comprises the fraction of said polymers and/or copolymers having a symmetrical, single-mode molecular weight distribution centered on an average molecular weight of about 800, in which 100% of said molecular weights are individually lower than 1,200 and at least 90% of same are in the 400-1,000 range.

REFERENCES:
patent: 3578589 (1971-05-01), Hwa et al.
patent: 3968059 (1976-07-01), Shimada et al.
patent: 4075242 (1978-02-01), Rhum et al.

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