A primer-attached thermoplastic resin material having a thermoplastic resin material and one or plural primer layers laminated on the thermoplastic resin material, wherein at least one layer of the primer layers is an in-situ polymerizable composition layer of an in-situ polymerizable composition polymerized on the thermoplastic resin material.

A process for producing thermoplastic polyoxazolidinone comprising copolymerization of a diisocyanate compound (A) with a bisepoxide compound (B) in the presence of a catalyst (C) and a compound (D) in a solvent (E), wherein the catalyst (C) is selected from the group consisting of alkali halogenides and earth alkali halogenides, and transition metal halogenides, compound (D) is selected from the group consisting of monofunctional isocyanate, monofunctional epoxide, and wherein the process comprises step (α) of placing the solvent (E) and the catalyst (C) in a reactor to provide a mixture, and adding the diisocyanate compound (A), the bisepoxide compound (B) and the compound (D) in step (β) to the mixture resulting from the step (α). The invention is also related to the resulting thermoplastic polyoxazolidinone.

The present disclosure provides a coating composition comprising an initiator, a radical curable polyurethane having ethylenically unsaturated functional groups, and a liquid phase, wherein the radical curable polyurethane having ethylenically unsaturated functional groups comprises the reaction products of A) a polyol component; B) a polyisocyanate component; C) an isocyanate-reactive surfactant; and D) isocyanate-reactive component having ethylenically unsaturated functional groups. The resulting cured polyurethane coating resists surface damage by fine particles and has at least washable anti-fog properties, if not permanent anti-fog properties. Articles prepared with a coating according to this invention are also disclosed.

The disclosure relates to a polyurethane prepolymer and corresponding crosslinked network polymer incorporating lignin as a natural polyol in the polyurethane system. The polyurethane prepolymer includes a reaction product between an isocyanate, lignin, and a cyclic alkyl carbonate. The reaction product includes (i) free isocyanate groups and/or free hydroxyl groups, (ii) urethane linking groups between residues of lignin aliphatic hydroxyl groups and the isocyanate, (iii) ester linking groups between residues of lignin aromatic hydroxyl groups and a ring-opened form of the cyclic alkyl carbonate, and (iv) optionally urethane linking groups between residues of the ring-opened cyclic alkyl carbonate and the isocyanate. The polyurethane polymer can be a networked, crosslinked polymerization product of the prepolymer reaction product, for example in combination with a lignin curing agent. The polyurethane polymer can be used as a coating on a substrate, an adhesive joining multiple substrates, etc.

A prepolymer comprising acid functionality is made by a process comprising the step of contacting: (i) a di-isocyanate, (ii) a polyol containing an acid group, (iii) a polyol without an acid group, and (iv) a metal salt catalyst, the contacting conducted under reaction conditions and in a solvent consisting essentially of: (A) a dialkyl amide, and (B) optionally, an aprotic glycol ether. The prepolymer is useful in the preparation of water-based polyurethane dispersions, and certain of the solvent blends consisting essentially of a dialkyl amide and an optional aprotic glycol ether are azeotropic or pseudo-azeotropic.

A polycarbonate polyol is provided. The polycarbonate polyol comprises a repeating unit represented by the following formula (I) and terminal hydroxyls:

##STR00001##

in formula (I), R is a substituted or unsubstituted C.sub.2-C.sub.20 divalent aliphatic hydrocarbyl, wherein the .sup.1H-NMR spectrum of the polycarbonate polyol has an integral value A of signals from 4.00 ppm to 4.50 ppm and an integral value D of signals from 0.90 ppm to 1.10 ppm, the ratio of D to A (D/A) ranges from 0.03 to 1.45, and the .sup.1H-NMR spectrum is measured by using deuterated chloroform as a solvent and tetramethylsilane as a reference substance.

A coating composition comprising water, water-soluble cationic phosphonium salts and polyurethane particles including sulfonated- or carboxylated-diamine groups, isocyanate-generated amine groups, and polyalkylene oxide side-chains. Also disclosed is a coated printable medium, with an image-side and a back-side, comprising a base substrate and the coating composition, such as described herein, that is applied over, at least, one side of the base substrate, forming an image-receiving layer. Also disclosed is the method for making such printable medium.

A coating composition can include water and polyurethane particles including sulfonated- or carboxylated-diamine groups, isocyanate-generated amine groups, and polyalkylene oxide side-chains.

The present invention is directed to a curable film-forming composition comprising: (a) a curing agent comprising reactive isocyanate functional groups; (b) a film-forming compound comprising functional groups reactive with the reactive isocyanate functional groups in (a); (c) a photo-latent catalyst; (d) a beta-diketone having a flash point higher than 60 C (140 F); and (e) a beta-diketone having a flash point lower than or equal to 60 C (140 F). The invention is further directed to methods of controlling the rate of cure and increasing the wet-edge time of a curable film-forming composition comprising an isocyanate functional curing agent, by adding to the curable film-forming composition a catalyst component comprising: (i) a photo-latent catalyst; (ii) a beta-diketone having a flash point higher than 60 C (140 F); and (iii) a beta-diketone having a flash point lower than or equal to 60 C (140 F).

Provided is an oil gel comprising a chain polyurethane (A) and a paraffin based oil (B), wherein the chain polyurethane (A) is a chain polyurethane (A1) formed by polymerization of a chain diol (x) and a diisocyanate (y), and the paraffin based oil (B) is a paraffin based oil (B1) having a kinetic viscosity at 40° C. of 20 mm.sup.2/s or more and 100 mm.sup.2/s or less, and the chain polyurethane (A1) is included at a proportion of 10% by mass or more and 50% by mass or less based on the total amount of the chain polyurethane (A1) and the paraffin based oil (B1). Also provided is a pressure proof material for protecting an electronic device.