An object of the present invention is to provide a method for producing (meth)acrylic-modified polybutadiene free from coloration and white turbidity without using a tin compound. The method for producing (meth)acrylic-modified polybutadiene of the present invention comprises reacting polybutadiene having a hydroxyl group at a terminal and a (meth)acrylic ester in the presence of an organoaluminum compound. As the organoaluminum compound, for example, a compound represented by formula (I) (wherein each of R.sub.1, R.sub.2, R.sub.3, and R.sub.4 independently represents a linear or branched C1 to C30 alkyl group) is preferred. ##STR00001##

Provided is a styrene resin, a hydroxy resin, a method for producing a hydroxy resin, a method for producing a styrene resin, a resin composition containing a styrene resin, a cured product, a prepreg, a metal foil-clad laminate, a resin composite sheet, a printed wiring board, and a semiconductor device. Provided is a hydroxy resin represented by Formula (T-OH) and having a number average molecular weight of 850 to 4000. In Formula (T-OH), R is a group containing structural units represented by Formula (Tx-OH).

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A filtering device is for obtaining a chemical liquid by purifying a liquid to be purified and has an inlet portion, an outlet portion, a filter A, a filter B different from the filter A, and a flow path extending from the inlet portion to the outlet portion, in which the filter A and the filter B are arranged in series between the inlet portion and the outlet portion and have, and the filter A is selected from the group consisting of predetermined filters A1, A2, and A3.

The disclosure relates to a solvent-based polymer composition comprising, consisting essentially of, or consisting of: (i) a base polymer selected from the group consisting of: polyurethane (TPU), acrylic polymers, epoxy resins, polyamides, polyesters, polyethylene, polypropylene, rubbery polymer, polyisobutylene, poly(vinyl acetate), poly(vinyl alcohol), and mixtures thereof, (ii) a decarboxylated rosin as a first solvent in a solvent system containing a hydrocarbon-based co-solvent selected from any of: aromatic/aliphatic hydrocarbons, esters, alcohols, ketones, and mixtures thereof. The composition can be used in applications including adhesive, sprayable adhesive, sealant, and coating.

A method for rubber formulating and characterizing, the method comprising (i) providing a plurality of rubber samples including at least three rubber samples each contained within a container; (ii) introducing a compounding additive to at least one of the samples within the plurality of rubber samples to thereby form a plurality of rubber formulations each contained within a container; (iii) mixing at least one of the samples of the plurality of rubber formulations under high-shear conditions to thereby form a plurality of vulcanizable compositions; and (iv) analyzing at least one of the samples plurality of vulcanizable compositions to thereby characterize the compositions of the plurality, where at least one or the plurality of the rubber samples, the plurality of rubber formulations, the plurality of vulcanizable compositions are transferred to a subsequent step through an automated transfer.

A method for producing a syntactic foam for high-pressure environments includes providing a housing having a void volume. The housing may include an inlet and an outlet to the void volume of the housing. The method includes injecting a plurality of microspheres comprising glass into the housing. The plurality of microspheres include a first set of microspheres comprising an average diameter ranging from 5 microns to 150 microns. The method includes agitating the housing to settle the plurality of microspheres within the housing. The method includes injecting a resin from the inlet of the housing to the outlet of the housing to fill voids between the plurality of microspheres to form a resin-microsphere matrix. The resin may have a viscosity less than 100 centipoise. The method may include curing the resin-microsphere matrix in the housing to produce a cured composition.

An object is to provide a cured product, for example, that is made with a curable resin composition containing a curable resin having a particular structure, a radical polymerization initiator, and a flame retardant and therefore is superior in flame retardancy, heat resistance (high glass transition temperature), and dielectric properties (low dielectric properties). Specifically, there are provided a curable resin represented by general formula (1) below and a curable resin composition containing this curable resin, a radical polymerization initiator (B), and a flame retardant (C). (In general formula (1) above, Y is a substituent represented by general formula (2) below, and the details of the substituents and the numbers of substituents presented in general formulae (1) and (2) above are as described in the text.) ##STR00001##