This invention provides a polymer that is useful in a variety of applications, including as a binder polymer of a coating composition, and especially a packaging coating composition. Packaging articles (e.g., containers) comprising the polymer and methods of making such packaging articles are also provided.

A method for manufacturing an organism adhesion reduction paint includes a first process of gelling a raw material composition that includes polyvinyl alcohol and at least one of a hydroxyl group-containing inorganic compound or an inorganic oxide; a second process of drying and subsequently pulverizing a resulting product in the first process to thereby obtain a composite gel fine powder; and a third process of adding the composite gel fine powder to a main component of a two-component urethane paint and stirring, to thereby prepare a main component of the organism adhesion reduction paint, and also adding a curing agent immediately before use.

A method for manufacturing an organism adhesion reduction paint includes a first process of gelling a raw material composition that includes polyvinyl alcohol and at least one of a hydroxyl group-containing inorganic compound or an inorganic oxide; a second process of drying and subsequently pulverizing a resulting product in the first process to thereby obtain a composite gel fine powder; and a third process of adding the composite gel fine powder to a main component of a two-component urethane paint and stirring, to thereby prepare a main component of the organism adhesion reduction paint, and also adding a curing agent immediately before use.

A composite structure is provided, which includes a support, an active layer wrapping the support, a dendrimer grafted to the active layer through covalent bondings, and a plurality of anti-fouling groups, wherein each of the anti-fouling groups is grafted to terminals of the dendrimer through covalent bondings. The terminals of the dendrimer include amino group, hydroxyl group, or thiol group.

A composite structure is provided, which includes a support, an active layer wrapping the support, a dendrimer grafted to the active layer through covalent bondings, and a plurality of anti-fouling groups, wherein each of the anti-fouling groups is grafted to terminals of the dendrimer through covalent bondings. The terminals of the dendrimer include amino group, hydroxyl group, or thiol group.

A coating composition includes (a) a melamine resin having imino and methylol functional groups that together include 30 mole % or greater of the total functionality of the melamine resin; and (b) at least one polymer reactive with (a) that is obtained from components including polytetrahydrofuran and a carboxylic acid or anhydride thereof. The polytetrahydrofuran includes greater than 20 weight % of the components that form the polymer (b) and the carboxylic acid or anhydride thereof includes greater than 13 weight % of the components that form the polymer (b). The polymer (b) has an acid value ranging from 40 to 60 based on the total resin solids of the polymer (b).

A coating composition includes (a) a melamine resin having imino and methylol functional groups that together include 30 mole % or greater of the total functionality of the melamine resin; and (b) at least one polymer reactive with (a) that is obtained from components including polytetrahydrofuran and a carboxylic acid or anhydride thereof. The polytetrahydrofuran includes greater than 20 weight % of the components that form the polymer (b) and the carboxylic acid or anhydride thereof includes greater than 13 weight % of the components that form the polymer (b). The polymer (b) has an acid value ranging from 40 to 60 based on the total resin solids of the polymer (b).

Di(amido(alkyl)phenol) compounds and upgraded molecular weight polymers made from such compounds have particular utility in coating compositions, especially for use on food and beverage contact substrates that are formed into or will be formed into containers or container components.

Di(amido(alkyl)phenol) compounds and upgraded molecular weight polymers made from such compounds have particular utility in coating compositions, especially for use on food and beverage contact substrates that are formed into or will be formed into containers or container components.

Provided are [1] a coating composition containing inorganic oxide particles (A), an epoxy compound (b1) having an organosilane moiety, a polyglycerol polyglycidyl ether (b2) having three or more epoxy groups, and a photocationic polymerization initiator (C), [2] a spectacle lens including a hard coat layer obtainable by curing the coating composition described in [1] above and a substrate, and [3] a method for producing a spectacle lens, including a step of applying the coating composition described in [1] above onto a substrate and a step of curing the applied coating composition by irradiation with light.