A saltwater corrosion resistant composite coating is described. The coating includes at least one conductive polymer, chitosan, reduced graphene oxide (rGO), and a cured epoxy. The rGO and chitosan are dispersed in particles of the conductive polymer to form a 3D network. At least a portion of the chitosan is covalently bound to the rGO. At least a portion of the conductive polymer is covalently bound to the chitosan, and the 3D network is dispersed in the cured epoxy.

A saltwater corrosion resistant composite coating is described. The coating includes at least one conductive polymer, chitosan, reduced graphene oxide (rGO), and a cured epoxy. The rGO and chitosan are dispersed in particles of the conductive polymer to form a 3D network. At least a portion of the chitosan is covalently bound to the rGO. At least a portion of the conductive polymer is covalently bound to the chitosan, and the 3D network is dispersed in the cured epoxy.

The invention relates to a potting paste composition for honeycomb reinforcement having improved fire retardancy characteristics. The potting paste composition comprises (a) a curable polymer; (b) a curing agent for the curable polymer; (c) a fire retardant comprising an ammonium polyphosphate in combination with an ingredient selected from the group consisting of metal hydroxides, expandable graphites, liquid phosphate esters, phosphorous organic compounds or salts thereof, and zeolites; and(d) a filler selected from the group consisting of polymeric microspheres, hollow glass microspheres, and thixotropic fillers; wherein the potting paste has an uncured density determined by the method according to EN ISO 1183 of not more than 0.7100 g/cm.sup.3, preferably of at most 0.680 g/cm.sup.3, more preferably of at most 0.673 g/cm.sup.3, still more preferably of at most 0.660 g/cm.sup.3, even more preferably of at most 0.658 g/cm.sup.3, yet more preferably of at most 0.653 g/cm.sup.3 and in particular of at most 0.620 g/cm.sup.3; and wherein the total content of the fire retardant is at least 5.0 wt.-%, preferably at least 10 wt.-%, more preferably at least 15 wt.-%, relative to the total weight of the potting paste composition.

The disclosure provides a cationic curing composition for a plastic substrate, a coating material including the composition and an application of the composition in the field of energy curing. The cationic curing composition includes a polyhydroxy resin, an epoxy compound, an oxetanyl-containing compound, and a cationic initiator, the polyhydroxy resin is a polyester resin, an acrylic resin and/or a phenolic resin, and the molar ratio of a hydroxyl, a three-membered epoxy group to a four-membered epoxy group in the cationic curing composition is 1:(3-20):(1-25). A plastic product includes the plastic substrate and a coating layer, and the coating layer is formed by curing the cationic curing composition.

The disclosure provides a cationic curing composition for a plastic substrate, a coating material including the composition and an application of the composition in the field of energy curing. The cationic curing composition includes a polyhydroxy resin, an epoxy compound, an oxetanyl-containing compound, and a cationic initiator, the polyhydroxy resin is a polyester resin, an acrylic resin and/or a phenolic resin, and the molar ratio of a hydroxyl, a three-membered epoxy group to a four-membered epoxy group in the cationic curing composition is 1:(3-20):(1-25). A plastic product includes the plastic substrate and a coating layer, and the coating layer is formed by curing the cationic curing composition.

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.

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.

An intumescent composition capable of withstanding temperature cycling as low as −60° C. without cracking is contemplated. The composition also exhibits enhanced durability due to its resistance to water absorption, its acceptable cure times, and (when exposed to fire conditions) its well-adhered, foamed char layer.

An intumescent composition capable of withstanding temperature cycling as low as −60° C. without cracking is contemplated. The composition also exhibits enhanced durability due to its resistance to water absorption, its acceptable cure times, and (when exposed to fire conditions) its well-adhered, foamed char layer.

An intumescent composition capable of withstanding temperature cycling as low as −60° C. without cracking is contemplated. The composition also exhibits enhanced durability due to its resistance to water absorption, its acceptable cure times, and (when exposed to fire conditions) its well-adhered, foamed char layer.