Clickable waterborne polymers, click crosslinking of waterborne polymers, click crosslinked waterborne polymers, clickable functional compounds, and click functionalized waterborne polymers are presented. For example, the waterborne polymers have pendant groups bearing alkyne and/or azide groups and alkyne. For example, the functionalized azide-containing functional compounds such as antimicrobial or infrared-refractive compounds. The click crosslinking of clickable waterborne polymers or polymer mixtures, and the click conjugation of clickable waterborne polymers with clickable functional compounds such as clickable antimicrobial or infrared-refractive compounds, which resulted in functional waterborne polymers with antimicrobial or infrared-refractive functions, are presented. The presented polymers, including clickable waterborne polymers, click-crosslinked waterborne polymers, and functional waterborne polymers with, for example, antimicrobial or infrared-refractive functions, can be used in applications such as coating and adhesive compositions. The aqueous suspensions of waterborne polymers can also be used directly as drug delivery systems, or can be crosslinked into hydrogels or composites for biomedical applications such as drug/cell delivery, tissue engineering, and other medical device.

Polycarbamide coating compositions and secondary diamine curing agents used to produce the coating compositions are disclosed. Curing agent compositions comprising: (a) the reaction product of bis(4-aminocyclohexyl) methane and ethyl ester of 2-butendioc acid; and (b) the reaction product of bis(4-amino-3-methylcyclohexyl)methane and ethyl ester of 2-butendioic acid; and (c) at least one polyol are also disclosed. One aspect of the disclosure relates to a non-aqueous coating composition comprising the disclosed amine curing agents with a polyisocyanate resin. The coating compositions are suitable for use as direct to metal coatings or top coats. Methods of producing the curing agents and the coating compositions are also disclosed.

The present invention provides an anti-corrosion composition comprising an organic ion-exchanger; and a waterborne resin, wherein a substrate exposed to a halide-containing environment and having the anti-corrosion composition applied thereto has a reduced level of corrosion compared to the substrate exposed to the halide-containing environment without the anti-corrosion composition being applied. The inventive waterborne anti-corrosion composition may find use on substrates such as automotive vehicles, bridges, cranes, superstructures, offshore oil & gas rigs, pipes, tanks, ships, barges, boats, aircraft, concrete, and masonry that are exposed to halide-containing environments.

A polyester film comprises a polyester (A) composed mainly of polybutylene terephthalate and a polyester (B) composed mainly of polyethylene terephthalate, wherein a mass ratio (A/B) between the polyesters (A) and (B) is 70/30 to 55/45, a dry heat shrinkage rate (A) through heat treatment at 160° C. for 30 minutes is 20% or less in any of four directions on a film surface (0°, 45°, 90° and 135®), a difference between a maximum value and a minimum value of these dry heat shrinkage rates is 5% or less, a dry heat shrinkage rate (B) through heat treatment at 200° C. for 15 minutes is 35% or less in any of the four directions, a difference between a maximum value and a minimum value of these dry heat shrinkage rates is 5% or less, and a thickness variation in the four directions is 10% or less.

A self-stratifying anticorrosive coating is described herein, including a zinc-rich epoxy, a curing agent chosen from the group consisting of amines, thiols, phenols, and carboxylic anhydrides, a binding agent chosen from the group consisting of aminoalkyl dialkoxysilane, dimethoxysilane, and aminoalkyl trialkoxysilane, a graphitic material, a solvent, a water scavenger, and a moisture-cured siloxane.

A powder coating composition includes: a film-forming resin; a lignin polymer that is substantially free of sulfonate or sulfonic acid groups; and a crosslinker reactive with functional groups of the film-forming resin and the lignin polymer. The lignin polymer includes at least 5 weight % of the powder coating composition, based on the total solids weight of the powder coating composition. Further, when cured to form a coating, the film-forming resin and lignin polymer react and chemically bond with the crosslinker to form a binder of the coating.

This invention provides a polymer, which is preferably a polyether polymer. The polymer may be uses 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.

A self-stratifying anticorrosive coating is described herein, including a zinc-rich epoxy, a curing agent chosen from the group consisting of amines, thiols, phenols, and carboxylic anhydrides, a binding agent chosen from the group consisting of aminoalkyl dialkoxysilane, dimethoxysilane, and aminoalkyl trialkoxysilane, a graphitic material, a solvent, and a water scavenge.

A coating composition, coated article and method for coating an article are provided. The composition is a coating composition that includes a polyurethane binder system further including a first resin component and a second resin component with a significant difference in hydroxyl numbers and crosslinked with an isocyanate. The composition, when applied to and cured on an article, imparts optimal antifingerprint, antireflecting, tactile, chemical agent-resistant, and self-healing effects to the coated article.

We have demonstrated reversibly reducing metal-ion crosslinkages in polymer systems, by harnessing light, creating a dynamic and reversible bond. The reduction induces chemical and physical changes in the polymer materials. Some variations provide a polymer composition comprising: a polymer matrix containing one or more ionic species; one or more photosensitizers; and one or more metal ions capable of reversibly changing from a first oxidation state to a second oxidation state when in the presence of the photosensitizers and light. Some embodiments employ urethane-based ionomers capable of changing their crosslinked state under the influence of a change in counterion valance, using light or chemical reducing agents. This invention provides films, coatings, or objects that are reversible, re-mendable, self-healing, mechanically adjustable, and/or thermoplastic/thermoset-switchable.