초록 ▼

Corrosion inhibiting compositions for metals subjected to highly acidic environments may be produced by reacting in a condensation reaction a styrene-acrylic acid copolymer with a polyamine (or combination of polyamines) to produce a polyamidoamine inhibitor. A preferred inhibitor product may be pro

Corrosion inhibiting compositions for metals subjected to highly acidic environments may be produced by reacting in a condensation reaction a styrene-acrylic acid copolymer with a polyamine (or combination of polyamines) to produce a polyamidoamine inhibitor. A preferred inhibitor product may be produced by replacing up to 80% of the styrene-acrylic acid copolymer with a member selected from the group consisting of: rosin, C23-C24 modified rosins, C8-C20 fatty acids, C9-C22 modified fatty acids, and combinations thereof. These inhibitors exhibit excellent film forming and film persistency characteristics.

대표청구항 ▼

A composition for inhibiting the corrosion of metals in highly acidic environments comprising the polyamidoamine condensation reaction product of: (a) 20-80 wt. % of a mixture containing (1) 20-80 wt. % of a copolymer formed by reacting 1-99 wt. % of a99-1 wt. % of a member selected from the group c

A composition for inhibiting the corrosion of metals in highly acidic environments comprising the polyamidoamine condensation reaction product of: (a) 20-80 wt. % of a mixture containing (1) 20-80 wt. % of a copolymer formed by reacting 1-99 wt. % of a99-1 wt. % of a member selected from the group consisting of acrylic acid, methacrylic acid, and combinations thereof; and (2) 80-20 wt. % of a member selected from the group consisting of rosin, C23-C24 modified rosins, C8-C20 fatty acids, C9-C22 modified fatty acids, and combinations thereof; with (b) 80-20 wt. % of a polyamine.