A system and method for creating and coating a polymer-based coatings, in particular, a two-component aliphatic polymer-based coating with antimicrobial properties. The donning and coating of the polymer compound provides a protective layer on a surface that provides support and protection against diseases and infections for passing individuals. The polymer is composed of a two-part composition; the first part of the polymer made out of a combination of water, polylol, and paint additives, and the other part of the polymer made out of a combination of hexamethalyne, a catalyst, and an antimicrobial agent. The two-part polymer provides an antimicrobial layer on a surface in an effort to prevent the spread of infectious diseases.

Star block copolymers having 3 to 8 arms are formed as a 3D foam scaffold having tailor-made pore sizes that mimic an actual cell size of a specific animal and/or human tissue and/or organs. The pore sizes are made within the elastomeric foams via a salt leaching process wherein a salt of a specific particle size is blended within the star block copolymers and crosslinked as by polyisocyanate compounds. Water or other suitable solvent are utilized to dissolve and leach out the salt leaving an open pore system. Animal and/or human cells are then injected into the 3D elastomeric foam scaffold that contains pendant liquid crystals on the star block copolymer whereby with the aid of nutrients, cells are formed within the pore system that are viable for at least three months. The size of the pore is predetermined to produce a desired cultured cell having a desired size. The tissue and/or cells within the elastomeric scaffold can be applied to animal and/or human tissue and/or organs whereupon they grow and reconstruct the damaged, injured, diseased, etc., area and result in a healthy, repaired, and viable tissue or organ. The elastomeric liquid crystal containing foam scaffold will degrade naturally and/or also be consumed by the growing cells so that it no longer exists. In other words, a specific type of animal or human cell can be culturally produced having a predetermined average cell diameter that is substantially or essentially the same diameter of a natural cell.

Durable antibacterial coatings are prepared by inter-diffusing zwitterionic polyurethane in acrylic polyurethane. Bacterial attachment is substantially eliminated from the surface of the coatings due to the hydrophilicity of the zwitterionic polyurethane. Long-term antibacterial properties were observed for both Gram-negative and Gram-positive bacteria even when the coatings were constantly challenged by mechanical abrasion.

Durable antibacterial coatings are prepared by inter-diffusing zwitterionic polyurethane in acrylic polyurethane. Bacterial attachment is substantially eliminated from the surface of the coatings due to the hydrophilicity of the zwitterionic polyurethane. Long-term antibacterial properties were observed for both Gram-negative and Gram-positive bacteria even when the coatings were constantly challenged by mechanical abrasion.

Provided is a method for forming a multilayer coating film giving excellent low temperature impact resistance to a substrate that comprises a metal material and a plastic material. The method for forming a multilayer coating film comprises sequential steps of forming an uncured primer coating film, an uncured first colored coating film, an uncured second colored coating film and an uncured clear coating film on a substrate; and heating the same so as to simultaneously cure these 4 coating films, wherein the aqueous first colored paint and aqueous second colored paint are each a 1-package type paint composition containing a specific hydroxyl group-containing resin and a specific blocked polyisocyanate compound.

Provided herein is a conductive adhesive composition containing: a thermosetting resin having a functional group reactive with an epoxy group; an epoxy resin; a conductive filler; and urethane resin particles having a mean particle diameter of 4 m or more and 13 m or less and a hardness of 55 or more and 90 or less measured by a type A durometer in conformity with JIS K6253.

The present disclosure provides a polyurethane hot-melt adhesive composition comprising a polyol component and an isocyanate component, wherein the polyol component comprises a polyol having two or more OH groups and a hydrogen-bridging group.

The present disclosure is directed to a solvent borne non-isocyanate curable two-components coating composition, comprising: component a) a film-forming resin composition comprising a resin component having carboxyl functional groups and hydroxyl functional groups and having an acid value of at least 23 mg KOH/g resin; and component b) an aromatic polycarbodiimide having two or more NCN moieties, wherein the carboxyl functional groups of the resin component and the NCN moieties present in the aromatic polycarbodiimide have a molar ratio in the range of 1:2 to 2:1, preferably in the range of 1:1 to 2:1; and wherein the coating composition comprises less than 1 wt % of water relative to the total weight of the coating composition. The present disclosure is also directed to an article comprising a substrate and a coating disposed thereon formed by the above solvent borne non-isocyanate curable two-components coating composition.

A crosslinker composition is prepared from a reaction mixture including: (a) a prepolymer including a reaction product of a prepolymer mixture including: (i) a polyfunctional isocyanate; and (ii) a first compound comprising two or more active hydrogen groups, where the polyfunctional isocyanate and/or the first compound comprising two or more active hydrogen groups includes a greater than two functional isocyanate and/or active hydrogen groups, respectively; and (b) a polyfunctional hydrazide. The crosslinker composition is not self-crosslinkable. The crosslinker composition has an acid value of at least 15 based on total resin solids of the crosslinker composition.

The present invention concerns polyester resins of General Formula I (HO[R.sup.1R.sup.2C(CH.sub.2)].sub.a[OCOC.sub.xH.sub.yCO.sub.2].sub.b[C.sub.pH.sub.zO].sub.cH) or General Formula II (HO[R.sup.1R.sup.2C(CH.sub.2).sub.2].sub.a[OCOC.sub.xH.sub.yCO.sub.2].sub.b[CH.sub.2CR.sup.3(CO.sub.2H)CH.sub.2O].sub.dH), wherein R.sup.1, R.sup.2, a, b, c, d, x, y, p, and z are as defined herein, for use in inks and coating compositions. The polyester resins of the present invention are particularly, but not exclusively, suitable to enhance the adhesion between a printing ink or coating composition and a substrate, especially a plastic substrate, to which it is applied. The polyester adhesion promoters of the invention are compatible with urethane-based inks and coating compositions.