Polymer sheets and methods of controlling adhesion of polymer sheets to glass

A polymer sheet, comprising:

• plasticized poly(vinyl butyral);
• sodium acetate;
• potassium acetate;
• and,
• a magnesium salt, wherein the titer of said magnesium salt is at least 9.0, wherein the total alkalinity titer is at least 20, wherein the ratio of said titer of said magnesium salt to said total alkalinity titer is at least 0.2, and wherein the ratio of parts per million of potassium to parts per million of sodium is less than 1.0.

A method of manufacturing a polymer sheet, comprising:

• forming a poly(vinyl butyral) resin, wherein said resin comprises sodium acetate and a magnesium salt;
• adding a plasticizer to said resin to form a melt;
• and,
• forming said polymer sheet with said melt, wherein the titer of said magnesium salt is at least 4, wherein the alkalinity titer attributable to said sodium acetate is at least 20, and wherein the ratio of said titer of said magnesium salt to the total alkalinity titer is at least 0.2.

A laminated glass panel, comprising:

• a glass panel;
• and,
• a polymer sheet, wherein said polymer sheet comprises:
• plasticized poly(vinyl butyral);
• sodium acetate;
• and,
• a magnesium salt, wherein the titer of said magnesium salt is at least 4, wherein the alkalinity titer attributable to said sodium acetate is at least 20, and wherein the ratio of said titer of said magnesium salt to the total alkalinity titer is at least 0.2.