Provided is a humic acid-based coating suspension comprising humic acid, particles of an anti-corrosive pigment or sacrificial metal, and a binder resin dissolved or dispersed in a liquid medium, wherein the humic acid has a weight fraction from 0.1% to 50% based on the total coating suspension weight excluding the liquid medium. Also provided is an object or structure coated at least in part with such a coating.

The present disclosure provides a two-component adhesive composition. The two-component solvent-based adhesive composition contains the reaction product of (A) an isocyanate component; (B) a dimer acid polyester polyol component containing the reaction product of a reaction mixture including (i) from 20 wt % to 60 wt % dimer acid, based on the total weight of the dimer acid polyester polyol component, (ii) a dicarboxylic acid, and (iii) a polyol; and (C) a solvent.

Disclosed is a polyurethane resin containing a polyol component and an isocyanate component, wherein (1) the polyol component contains a polycarbonate diol component, and the isocyanate component contains a linear aliphatic isocyanate, (2) the polycarbonate diol component has a number-average molecular weight of 500 to 3000, and contains a diol-derived structure having 3 to 10 carbon atoms in the structure thereof, and (3) 10 mol % or more of the isocyanate component is a linear aliphatic isocyanate component having 4 to 10 carbon atoms.

The present invention relates to a crosslinkable composition comprising a polyol, a polyisocyanate crosslinker, a catalyst for catalysing the reaction between —OH groups of said polyol and —NCO groups of said crosslinker, a tertiary acid of formula RR′R″CCOOH (I), wherein each R, R′ and R″ group, independently, is an alkyl, alkenyl, aryl or aralkyl group containing at least one carbon atom, with the proviso that two or three of the R, R′ and R″ groups can be linked to form a ring structure and wherein the R, R′ and/or R″ groups can be substituted, and optionally, a complexing agent containing at least one —SH group, as well as its use for making coatings having improved application properties.

A radiation curable polyurethane resin includes an ionic group, a polyalkylene oxide in a side chain thereof, and a (meth)acrylate or (meth)acrylamide having a hydroxyl functional group. The polyurethane resin is obtainable by reacting a polyester polyol, a polyether diol, a polyol containing an ionic group, a (meth)acrylate or (meth)acrylamide having a hydroxyl functional group, and a polyisocyanate. The polyester polyol is obtained by reacting a polycarboxylic acid and a polyol. The radiation curable polyurethane resin can be used as binder in an aqueous ink jet ink.

A renewable chemical composition is disclosed for use in a variety of industrial applications. The renewable chemical composition may be reacted with an isocyanate to produce a polyurethane material. The renewable chemical composition has aromatic groups. The suitability of this material for use in a variety of applications can be adjusted by modifying the acid number, the Hydroxyl number, the viscosity, the glass transition temperature, the % solids, the softening point, and other properties. The chemical reactivity and properties can be modified based on processing conditions and temperature as well as the source of renewable raw material. The lignin used in these formulations may be from pulp and paper processing such as semi-mechanical processing, soda processing, kraft processing, or biomass processing, or a by-product of ethanol production. The novel biobased polyurethane formulations range in firmness from flexible to semi-rigid to rigid and are useful in large volume polyurethane applications.

The present invention provides compositions comprising the reaction product of an aliphatic diisocyanate, and a reactive intermediate made from one selected from the group consisting of oxazolidinones, benzoic sulfimides (saccharins), 1H-indole-2,3-diones (isatins), succinamides, N-hydroxysuccinamides, 4-hydroxy-3-methoxybenzaldehydes (vanillins), -ketoamides, piperazines, benzofuranones, 3,4-dihydroxycyclobut-3-ene-1,2-diones (squaric acids), squaric acid esters, -ketoamides, anilines, and -ketoamide, phenols. The aliphatic diisocyanate comprises one selected from the group consisting of isocyanurates, biurets, iminooxadiazine diones, urethanes, uretdiones, carbodiimides, and allophanates. The resulting compositions may be useful in producing coatings, adhesives, sealants, castings, composites and films having durability, color stability, high gloss, and chemical resistance properties similar to those made from polyurethane.

The present disclosure is drawn to polyurethane dispersions. In one example, a polyurethane dispersion can include a polyurethane with a polymeric ionic side chain and a polymeric non-ionic side chain. The polyurethane can be formed of polymerized monomers including a diisocyanate, a first polymeric diol, and a second polymeric diol. The first polymeric diol can include a first polymer chain replacing a hydrogen atom of a thiol group of a 1-thioglycerol molecule. The first polymer chain can include a block of a polymerized ionic group-containing vinyl monomer. The second polymeric diol can include a second polymer chain replacing a hydrogen atom of a thiol group of a 1-thioglycerol molecule. The second polymer chain can include a block of a polymerized non-ionic vinyl monomer, and the second polymer chain can be devoid of ionic groups.

An aqueous or water-borne precursor for forming an anti-fouling heterophasic thermoset polymeric coating is provided. The precursor includes a fluorine-containing polyol precursor having a functionality >about 2 that forms a branched fluorine-containing polymer component defining a continuous phase in the anti-fouling heterophasic thermoset polymeric coating. The precursor also includes a fluorine-free precursor that forms a fluorine-free component present as a plurality of domains each having an average size of about 100 nm to about 5,000 nm defining a discrete phase within the continuous phase in the anti-fouling heterophasic thermoset polymeric coating. A crosslinking agent and water are also present. An emulsifier may also be included. Methods of making anti-fouling heterophasic thermoset polymeric coatings with such precursors are also provided.

Polymers are disclosed that incorporate portions of secondary or tertiary polyamide segments connected with polyisocyanates. These polymers have enhanced matting properties. The enhanced matting properties are from creating an inherently matt surface from the polymer without the use of any separate fine particle size matting additives. Conventional matting agents such as fine particle size silica usually results in loss of physical properties such as haze development and porosity in the coating from the matting agent. Composites and hybrids of these polymers and other polyamides, polyurethane with vinyl polymers (acrylates) are also disclosed and claimed.