The instant invention provides a crosslinkable coating composition, and method of producing the same. The crosslinkable coating composition according to the present invention comprises: (a) one or more polycarbamates derived from one or more polyesters comprising the condensation reaction product of one or more polyols with one or more polyacids, wherein said one or more polyols comprise at least 25 percent by weight of one or more units having 4 or more hydroxyl groups; (b) one or more crosslinking agents; (c) one or more acid catalysts; and (d) optionally one or more organic solvents.

Provided is a semiconductor encapsulation resin composition exhibiting an insignificant heat decomposition when left under a high temperature of 200 to 250 C. for a long period of time; and a superior reliability and adhesion to a Cu LF and Ag plating under a high-temperature and high-humidity environment. The composition comprises: (A) a cyanate ester compound having not less than two cyanato groups in one molecule; (B) a phenolic compound; (C) at least one epoxy resin; (D) a copolymer obtained by a hydrosilylation reaction of an alkenyl group-containing epoxy compound and an organopolysiloxane; and (E) at least one compound selected from a tetraphenylborate salt of a tetra-substituted phosphonium compound and a tetraphenylborate salt. A molar ratio of phenolic hydroxyl groups in (B) to cyanato groups in (A) is 0.08 to 0.25, and a molar ratio of epoxy groups in (C) and (D) to cyanato groups in (A) is 0.04 to 0.25.

Provided is a semiconductor encapsulation resin composition exhibiting an insignificant heat decomposition when left under a high temperature of 200 to 250 C. for a long period of time; and a superior reliability and adhesion to a Cu LF and Ag plating under a high-temperature and high-humidity environment. The composition comprises: (A) a cyanate ester compound having not less than two cyanato groups in one molecule; (B) a phenolic compound; (C) at least one epoxy resin; (D) a copolymer obtained by a hydrosilylation reaction of an alkenyl group-containing epoxy compound and an organopolysiloxane; and (E) at least one compound selected from a tetraphenylborate salt of a tetra-substituted phosphonium compound and a tetraphenylborate salt. A molar ratio of phenolic hydroxyl groups in (B) to cyanato groups in (A) is 0.08 to 0.25, and a molar ratio of epoxy groups in (C) and (D) to cyanato groups in (A) is 0.04 to 0.25.

The present invention relates to a phosphorus-containing polyphenylene oxide resin, its preparation method, a method for preparing the prepolymer of the phosphorus-containing polyphenylene oxide, a resin composition and an article thereof, wherein the phosphorus-containing polyphenylene oxide resin has a chemical structure represented by the following formula (I):

##STR00001## wherein R is

##STR00002## R is

##STR00003## R is hydrogen,

##STR00004##

Through the use of the above phosphorus-containing polyphenylene oxide resin, an article made from the resin composition can has good flame retardance, good thermal resistance and a lower percent of thermal expansion while dielectric properties can be maintained, such that the present invention is suitable for use in products such as copper clad laminate and printed circuit board.

The present invention relates to a phosphorus-containing polyphenylene oxide resin, its preparation method, a method for preparing the prepolymer of the phosphorus-containing polyphenylene oxide, a resin composition and an article thereof, wherein the phosphorus-containing polyphenylene oxide resin has a chemical structure represented by the following formula (I):

##STR00001## wherein R is

##STR00002## R is

##STR00003## R is hydrogen,

##STR00004##

Through the use of the above phosphorus-containing polyphenylene oxide resin, an article made from the resin composition can has good flame retardance, good thermal resistance and a lower percent of thermal expansion while dielectric properties can be maintained, such that the present invention is suitable for use in products such as copper clad laminate and printed circuit board.

Articles are prepared with a substrate and an ink jetted and UV-curable image some of which also include metal nanoparticles or reducible metal ions. The in jetted and UV-curable image can be obtained from an ink jettable and UV-curable composition comprising: a reactive polymer comprising: (a1) or (a2) recurring units comprising pendant metal complexing water-solubilizing groups, (b) at least 5 mol % of recurring units comprising a pendant group capable of crosslinking via [2+2] photocycloaddition, and optionally (c) at least 1 mol % of recurring units comprising a pendant amide, hydroxyl, or lactam group, or a pendant precursor moiety for the pendant amide, hydroxyl, or lactam group. Such articles can be used to provide electrically-conductive articles and devices after electrolessly plating a complex of the metal nanoparticles and the UV-cured reactive polymer.

Articles are prepared with a substrate and an ink jetted and UV-curable image some of which also include metal nanoparticles or reducible metal ions. The in jetted and UV-curable image can be obtained from an ink jettable and UV-curable composition comprising: a reactive polymer comprising: (a1) or (a2) recurring units comprising pendant metal complexing water-solubilizing groups, (b) at least 5 mol % of recurring units comprising a pendant group capable of crosslinking via [2+2] photocycloaddition, and optionally (c) at least 1 mol % of recurring units comprising a pendant amide, hydroxyl, or lactam group, or a pendant precursor moiety for the pendant amide, hydroxyl, or lactam group. Such articles can be used to provide electrically-conductive articles and devices after electrolessly plating a complex of the metal nanoparticles and the UV-cured reactive polymer.

Provided are: a prepolymer which is capable of forming a non-linear optical material that has excellent non-linear optical effect, heat resistance, withstand voltage and transparency; a curable material which contains the prepolymer; a coating composition which contains the curable material and a solvent; a non-linear optical material which is obtained by curing the curable material; an optical waveguide which uses the non-linear optical material; and a light control device which is provided with the optical waveguide. The present invention uses a prepolymer having a crosslinkable functional group, which is obtained by reacting one or more compounds (X) that are selected from the group consisting of compounds (X1), compounds (X2) and compounds (X3), a compound (Y) that is represented by formula (Y), a compound (Z) that has three or more phenolic hydroxyl groups, and an organic compound (B) that exerts a non-linear optical effect and has a reactive group. ##STR00001##

Provided are: a prepolymer which is capable of forming a non-linear optical material that has excellent non-linear optical effect, heat resistance, withstand voltage and transparency; a curable material which contains the prepolymer; a coating composition which contains the curable material and a solvent; a non-linear optical material which is obtained by curing the curable material; an optical waveguide which uses the non-linear optical material; and a light control device which is provided with the optical waveguide. The present invention uses a prepolymer having a crosslinkable functional group, which is obtained by reacting one or more compounds (X) that are selected from the group consisting of compounds (X1), compounds (X2) and compounds (X3), a compound (Y) that is represented by formula (Y), a compound (Z) that has three or more phenolic hydroxyl groups, and an organic compound (B) that exerts a non-linear optical effect and has a reactive group. ##STR00001##

Embodiments include oxazolidone ring containing adducts obtainable by combining an aliphatic epoxy compound, an aromatic epoxy compound, and a diisocyanate. Embodiments further include a curable powder coating composition including a resin component and a hardener component, where the resin component includes the oxazolidone ring containing adduct.