Scale inhibitor and method of inhibiting scale.

摘要

A scale inhibitor containing as its active component a copolymer comprising acrylic acid, methacrylic acid and a C<Sub>1-8</Sub> alkyl ester of (meth)acrylic acid, the copolymer being
(a) about 1:4 to about 4:1 in the copolymerization mole ratio of acrylic acid to methacrylic acid,
(b) about 2:1 to about 40:1 in the copolymerization mole ratio of a total amount of acrylic acid and methacrylic acid to the C<Sub>1-8</Sub> alkyl ester of (meth) acrylic acid, and
(c) about 500 to about 15,000 in average molecular weight,
and a method of inhibiting scale in various aqueous system by the use of said copolymer.