Polyamine condensates of styrene-maleic anhydride copolymers as

Details Polyamine condensates of styrene-maleic anhydride copolymers as Polyamine condensates of styrene-maleic anhydride copolymers as

1993-07-14

1995-02-21

Zitomer, Fred

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

Synthetic resins

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

25238932, 252390, 252394, 525375, 525379, 525380, 525382, 525386, 507939, C08F 830, C23F 1114

Patent

active

053916360

ABSTRACT:
Corrosion inhibiting compositions for metals subjected to highly acidic environments may be produced by reacting in a condensation reaction a styrene-maleic anhydride copolymer with a polyamine (or combination of polyamines) to produce a polyimidoamine inhibitor. A preferred inhibitor product may be produced by replacing up to 80% of the styrene-maleic anhydride copolymer with a member selected from the group consisting of: rosin, C.sub.23 -C.sub.24 modified rosins, C.sub.8 -C.sub.20 fatty acids, C.sub.9 -C.sub.22 modified fatty acids, and combinations thereof. These inhibitors exhibit excellent film forming and film persistency characteristics.

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