Scale inhibitors for preventing calcium phosphate and other scal

Details Scale inhibitors for preventing calcium phosphate and other scal Scale inhibitors for preventing calcium phosphate and other scal

1985-12-30

1987-03-17

Michl, Paul R.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C08F 2058

Patent

active

046508449

ABSTRACT:
Acrylic acid or acrylic acid/methacrylic acid is polymerized with between 5-95 mole percent of (meth)acryloyl morpholine to form polymers having a molecular weight range between 1,000-150,000. These polymers are extremely effective inhibitors for preventing calcium phosphate scale in boilers and on industrial heat exchangers. The above described water-soluble polymers are novel.

REFERENCES:
patent: 2658056 (1953-11-01), Ham
patent: 2798061 (1957-07-01), Coover et al.
patent: 2828223 (1958-03-01), McWherter et al.
patent: 3085916 (1963-04-01), Zimmie et al.
patent: 3156687 (1964-11-01), Anderson et al.
patent: 3392169 (1968-07-01), Zienty
patent: 3482980 (1969-12-01), Hayakawa et al.
CA83(7):5816Br, N,N,-Dialkylamide of Unsaturated Carboxylic Acids, Oct. 1973.

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