Coating composition and lubricated metal sheets

A coating composition comprising a methacrylic resin prepared by copolymerizing:

• styrene or a substituted styrene (A);
• a methacrylic ester obtained from an alcohol having at least two carbon atoms and methacrylic acid (B);
• and
• an olefinic compound having at least one carboxylic group (C);
• wherein the molar ratio, (A):(B):(C), is 1:0.05 to 44.5:0.12 to 13 and
• wherein the methacrylic resin is a methacrylic resin prepared by copolymerizing:
• the monomers for the methacrylic resin;
• and
• a polyalkylene glycol ester of an olefinic compound having at least one carboxylic group (E).

A coating composition comprising a methacrylic resin prepared by copolymerizing:

• styrene or a substituted styrene (A);
• a methacrylic ester obtained from an alcohol having at least two carbon atoms and methacrylic acid (B);
• and
• an olefinic compound having at least one carboxylic group (C);
• wherein the molar ratio, (A):(B):(C), is 1:0.05 to 44.5:0.12 to 13 and
• wherein the methacrylic resin is a methacrylic resin prepared by copolymerizing:
• the monomers for the methacrylic resin;
• and
• at least one selected from olefinic dicarboxylic monoesters (D), wherein the molar ratio thereof to styrene or a substituted styrene (A) is 0.06 to 6.0.

A coating composition comprising a methacrylic resin prepared by copolymerizing:

• styrene or a substituted styrene (A);
• a methacrylic ester obtained from an alcohol having at least two carbon atoms and methacrylic acid (B);
• and
• an olefinic compound having at least one carboxylic group (C);
• wherein the molar ratio, (A):(B):(C), is 1:0.05 to 44.5:0.12 to 13 and
• wherein the methacrylic resin is a methacrylic resin prepared by copolymerizing:
• the monomers for the methacrylic resin;
• at least one selected from olefinic dicarboxylic monoesters (D), and
• a polyalkylene glycol ester of an olefinic compound having at least one carboxylic group (E),
• wherein molar ratios of at least one selected from olefinic dicarboxylic monoesters (D) and a polyalkylene glycol ester of an olefinic compound having at least one carboxylic group (E) to styrene or a substitute styrene (A) are 0.06 to 6.0, and 0.001 to 2.7, respectively.