C08G73/0655

Liquid compression molding encapsulants
11578202 · 2023-02-14 · ·

Thermosetting resin compositions useful for liquid compression molding encapsulation of a reconfigured wafer are provided. The so-encapsulated molded wafer offers improved resistance to warpage, compared to reconfigured wafers encapsulated with known encapsulation materials.

LIQUID PROCESSABLE BISMALEIMIDE-TRIAZINE RESINS
20220411583 · 2022-12-29 · ·

A curable resin composition including a first bismaleimide compound, a second bismaleimide compound which is different from the first bismaleimide compound, and a cyanate ester monomer. A liquid processible bismaleimide-triazine resin is provided by curing the resin composition. A method of preparing the liquid processible bismaleimide-triazine resin is also disclosed.

Underlying coating compositions for use with photoresists

New composition and methods are provided that include antireflective compositions that can exhibit enhanced etch rates in standard plasma etchants. Preferred antireflective coating compositions of the invention have decreased carbon content relative to prior compositions.

Resist underlayer composition, and method of forming patterns using the composition

A resist underlayer composition and a method of forming patterns, the composition including a solvent; and a polymer that includes a structural unit represented by Chemical Formula 1 and a structural unit represented by Chemical Formula 2, ##STR00001##

COATING FOR AN OPTOELECTRONIC COMPONENT, METHOD FOR PRODUCING SUCH A COATING, AND OPTOELECTRONIC COMPONENT COMPRISING SUCH A COATING
20230081559 · 2023-03-16 ·

A coating for planarization and stabilization of a laser-structured surface of an optoelectronic component, the optoelectronic component having a layer system including a first electrode, a second electrode, and at least one photoactive layer, wherein the at least one photoactive layer is disposed at least partly between the electrodes, and wherein the layer system is laser-structured, the coating including a polythiolene matrix, wherein the polythiolene matrix is formed by polymerization from at least one first monomer and one second monomer, wherein the first monomer is a polyfunctional thiol having at least three thiol groups, the second monomer is a polyfunctional alkene having at least two C—C double bonds, and the coating is disposed on the optoelectronic component and has at least partial direct contact with the layer system and/or diffusion contact with the layer system for at least the first monomer and/or the second monomer.

Method for forming multilayer coating film

A method for forming a multilayer coating film which includes forming an uncured coating film by applying a first aqueous base coating composition, forming an uncured coating film by applying a second aqueous base coating composition, forming an uncured coating film by applying a clear coating composition, and simultaneously heat curing the obtained coating films. The first aqueous base coating composition contains a carbodiimide compound, the clear coating composition contains a hydroxyl group-containing acrylic resin (A) having a hydroxyl value of 120 to 160 mgKOH/g and an acid value of 5 to 10 mgKOH/g, a polyisocyanate compound (B), and a polycarbonate diol compound (C). The component (A) has a hydroxyl group-containing alkyl moiety having 3 or less carbon atoms, and the ratio of the numbers of moles of the isocyanate functional groups of the component (B) and the hydroxyl group functional groups of the component (A) is 1.15 to 1.35.

POLYMERS OF INTRINSIC MICROPOROSITY

A polymer of intrinsic microporosity having a repeating subunit including both a spirobisindane imide moiety and an amido (lactam) moiety.

##STR00001##

Process for preparing rigid polyisocyanurate foams using natural-oil polyols

The present invention provides a process for producing a rigid polyisocyanurate foam involving reacting at an isocyanate index of from about 175 to about 400, a polyisocyanate with at least one natural-oil polyol containing at least about 35 wt. %, based on the weight of the polyol, of natural oil, having a hydroxyl number from about 175 to about 375 and a hydroxyl functionality of about 2.0 to about 2.8, in the presence of a blowing agent and optionally, in the presence of one or more of surfactants, flame retardants, pigments, catalysts and fillers, wherein the resulting foam has a renewable biobased content of at least 8% by weight. The foams provided by the inventive process possess properties similar to foams produced from petroleum-derived materials and may find use in wall or roof insulation systems. The high biobased content (>8%) may allow wall or roof insulation systems containing these foams to be considered for the U.S. Government's preferred procurement program.

RESIN COMPOSITION

A resin composition including resin and other additives is provided. The resin includes bisphenol M-type cyanate ester (CE) resin and bismaleimide (BMI) resin. The other additives are selected from at least one of flame retardants, inorganic fillers, and accelerators.

CYANIC ACID ESTER COMPOUND AND METHOD FOR PRODUCING SAME, RESIN COMPOSITION, AND CURED PRODUCT

The present invention provides a cyanic acid ester compound having a structure represented by the following general formula (1):

##STR00001##

wherein n represents an integer of 1 or larger.