Compositions for containers and other articles and methods of using same

A water-based coating composition comprising:

• an aqueous carrier;
• at least 10 weight percent, based on total resin solids in the coating composition, of a polyether polymer that has a glass transition temperature of at least 70° C. prior to cure of the coating composition and a number average molecular weight of at least 2,000, wherein the polyether polymer does not include any structural units derived from a dihydric phenol that exhibits an estrogenic agonist activity greater than 4,4′-(propane-2,2-diyl)bis(2,6-dibromophenol) in the MCF-7 assay;
• wherein the polyether polymer is formed by reacting ingredients including:
• (i) an extender and (ii) a diepoxide compound, wherein the extender or diepoxide compound, or both, includes one or more segments of the below Formula (I):
• wherein:
• each of the oxygen atoms depicted in Formula (I) is present in an ether linkage;
• v is independently 0 to 4 when t is 0 and v is independently 0 to 3 when t is 1;
• w is 4;
• when t is 1 each of the phenylene groups depicted in Formula (I) includes at least one Hydrogen atom attached to the ring at an ortho position relative to the depicted oxygen atoms;
• each R1, if present, is a group that is free of halogen atoms and includes at least one carbon atom;
• R2, if present, is a divalent group having an atomic weight of less than 600 Daltons that does not include any ester linkages in a backbone of R2 connecting the pair of depicted phenylene groups;
• n is 0 or 1;
• with the proviso that if n is 0, the phenylene groups depicted in Formula (I) can optionally join to form a fused ring system in which case w is 3 and v is 0 to 2;
• t is 0 or 1;
• and
• two or more R1 and/or R2 groups can join to form one or more cyclic groups;
• and
• wherein the coating composition is a thermoset food or beverage can coating composition that includes no greater than 50 weight percent of non-volatile materials and is suitable for use in forming an interior food-contact can coating.

A coating composition comprising:

• at least 10 weight percent, based on total resin solids in the coating composition, of a polyether polymer that includes one or more —CH2—CH(OH)—CH2— or —CH2—CH2—CH(OH)— segments, has a glass transition temperature of at least 70° C. prior to cure of the coating composition and has a number average molecular weight of at least 2,000, wherein the polyether polymer does not include any structural units derived from a dihydric phenol that exhibits an estrogenic agonist activity greater than 4,4′-(propane-2,2-diyl)bis(2,6-dibromophenol) in the MCF-7 assay;
• wherein the polyether polymer is formed by reacting ingredients including:
• (i) an extender and (ii) a diepoxide compound, wherein the extender or diepoxide compound, or both, includes one or more segments of the below Formula (I):
• wherein:
• each of the oxygen atoms depicted in Formula (I) is present in an ether linkage;
• v is independently 0 to 2;
• w is 4;
• each of the phenylene groups depicted in Formula (I) includes two Hydrogen atom attached to the ring at an ortho position relative to the depicted oxygen atoms;
• each R1, if present, is a group that is free of halogen atoms and includes at least one carbon atom;
• R2 is a divalent group having an atomic weight of less than 600 Daltons that does not include any ester linkages in a backbone of R2 connecting the pair of depicted phenylene groups;
• n is 1;
• t is 1;
• and
• two or more R′ and/or R2 groups can join to form one or more cyclic groups;
• and
• wherein the coating composition is a thermoset food or beverage can coating composition suitable for use in forming an interior food-contact can coating.