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US 11,628,974 B2Granted
Compositions for containers and other articles and methods of using same
AssigneeSwimc LLC
InventorsJeffrey Niederst, Richard H. Evans, Robert M. O'Brien, Kevin Romagnoli, Mark S. Von Maier
Life of this patent
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Abstract
This invention provides a polymer, which is preferably a polyether polymer. The polymer may be used in coating compositions. Containers and other articles comprising the polymer and methods of making such containers and other articles are also provided. The invention further provides compositions including the polymer (e.g., powder coatings), which have utility in a variety of coating end uses, including, for example, valve and pipe coatings.
Claims28
An article comprising:
- a coating formed from a coating comprising at least 10 weight percent, based on total resin solids in the coating composition, of a polyether polymer that 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) an aliphatic diepoxide compound, wherein the extender comprises a dihydric phenol compound of below Formula (II):
- wherein:
- t is 0 or 1;
- v is independently 0 to 4 when t is 0 and v is independently 0 to 3 when t is 1;
- w is 4;
- each R1, if present, is free of halogen atoms and comprises an organic group, a sulfur-containing group, or any other suitable group that is substantially non-reactive with an epoxy group;
- R2, if present, is a divalent group;
- 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;
- and
- two or more R1 groups can join to form one or more cyclic groups.
10 more elements
A method comprising:
- providing a metal substrate;
- and
- applying on at least a portion of the substrate a coating composition comprising at least 10 weight percent, based on total resin solids in the coating composition, of a polyether polymer that 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) an aliphatic diepoxide compound, wherein the extender comprises a dihydric phenol compound of below Formula (II):
- wherein:
- t is 0 or 1;
- 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 an organic group, a sulfur-containing group, or any other suitable group that is substantially non-reactive with an epoxy group;
- R2, if present, is a divalent group;
- 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;
- and
- two or more R1 groups can join to form one or more cyclic groups.
13 more elements
Dependencies are inferred from the claim text.