A two-part curable urethane-based composition comprising a main agent (A); and a curing agent (B), wherein the main agent (A) contains a urethane prepolymer (a), an isocyanurate modified product of a polyisocyanate compound (b), and a silane coupling agent (c) in a specified ratio, the curing agent (B) contains a polyol (d) having a hydroxyl value of 50 to 500 mgKOH/g and an amine catalyst (e) in a specified amount, a mixing mass ratio of the main agent (A) to the curing agent (B) is 3:1 to 10:1, and an equivalent ratio of NCO group/OH group in the main agent (A) and the curing agent (B), respectively, is 1.0 to 5.0.

A display device and an adhesive member are provided. A display device according to an embodiment of the present disclosure includes: a display panel; a cover window disposed on the display panel; and a first adhesive member disposed between the display panel and the cover window, in which the first adhesive member includes a urethane monomer, and the urethane monomer includes 2,6-diisopropylphenyl isocyanate (2,6-DIPPI) of about 5 wt % or more and about 10 wt % or less with respect to a total weight of the first adhesive member.

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.

The present invention relates to an aqueous coating composition which has excellent storage stability, while being capable of forming a coating film that exhibits excellent chipping resistance and excellent finish appearance in a dust part and in a film formation part. The present invention provides an aqueous coating composition which contains (A) a urethane resin that is obtained from constituents including (a1) a polyisocyanate component and (a2) a polyol component containing (a2-1) a polyether polyol and (a2-2) a polycarbonate polyol, (B) at least one hydroxyl group-containing resin that is selected from among (B1) hydroxyl group-containing acrylic resins and (B2) hydroxyl group-containing polyester resins, (C) an organic solvent that has a solubility parameter within the range of from 8.8 to 10.1, and (D) water, wherein based on 100 parts by mass of the resin solid content in the aqueous coating composition, the content of the urethan resin (A) is within the range of from 60 to 85 parts by mass and the content of the organic solvent (C) is within the range of from 5 to 30 parts by mass.

Disclosed herein is a clearcoat coating material composition including an OH-functional (meth)acrylic copolymer (A1), a branched OH-functional polyester (A2) in an amount in the range of from 1.0 wt.-% to 15.0 wt.-%, based on the total solids content of the coating material composition, and at least one crosslinking agent (B1), which is different from both constituents (A1) and (A2) and which contains crosslinkable functional groups, which can be crosslinked with OH-functional groups. Further disclosed herein are a method of coating a substrate including applying to an optionally pre-coated substrate the inventive clearcoat coating material composition, a coated substrate, which is obtainable by the disclosed method, and a method of using the branched OH-functional polyester (A2) as flow enhancer in a clearcoat coating material application for spray applying said clearcoat coating material application onto an optionally pre-coated substrate and/or as levelling agent.

Provided is a curable photochromic coating composition including (a) a polyol component, (b) a poly(anhydride) having at least three cyclic anhydride groups, (c) a secondary crosslinker, and (d) a photochromic material. The polyol component includes (i) a first polyol having two hydroxyl groups and a hydroxyl equivalent weight of at least 15,000 g/mol and (ii) a second polyol different from the first polyol having at least three hydroxyl groups and a hydroxyl equivalent weight of at least 300 g/mol. The secondary crosslinker is selected from a poly(carbodiimide), an oxazoline-functional material, or mixtures thereof. The present invention also provides an optical article prepared from the curable photochromic coating composition.

One of the purposes of the present invention is to provide a blocking agent for blocking an isocyanate group to thereby prepare an isocyanate compound which has excellent water resistance and is react with another polymerizable compound to be cured at a relatively low temperature; and another purpose is to provide a blocked isocyanate having an isocyanate group blocked with the blocking agent. The present invention provides a blocking agent for blocking an isocyanate group, wherein the blocking agent is an organic silicon alcohol having an organic group bonded to a silicon atom and said organic group is capable of forming a β-silyl cation together with the silicon atom. In a preferred embodiment, the present invention provides a blocking agent which is an organic silicon alcohol represented by the general formula (1). In the formula (1), R.sup.1 is an alkylene group having 3 to 5 carbon atoms and may have a substituent, provided that the number of carbon atoms of the substituent is not included in the number of the carbon atoms of the alkylene group, R.sup.2 is an alkyl group having 1 to 10 carbon atoms, Z is an organic group capable of forming a β-silyl cation together with the silicon atom to which Z bonds, and n is an integer of 1 to 3. The present invention further provides a blocked isocyanate having a structure in which the isocyanate group is blocked with the aforesaid blocking agent and a thermosetting composition comprising the blocked isocyanate.

A power storage device packaging material of the present disclosure includes: a laminate at least including a substrate layer, a barrier layer, and a sealant layer, which are disposed in this order; and an adhesive layer interposed between the substrate layer and the barrier layer, the adhesive layer containing a polyurethane-based compound made of a reaction product of at least one polyester polyol resin and at least one polyfunctional isocyanate compound, wherein the polyfunctional isocyanate compound contains an isocyanurate of isophorone diisocyanate, and a content of isocyanate groups derived from the isocyanurate of isophorone diisocyanate in the polyfunctional isocyanate compound is 5 mol % to 100 mol % relative to a total amount of isocyanate groups contained in the polyfunctional isocyanate compound of 100 mol %.

The present disclosure provides a gas separation membrane module that has high, long-term utility. The present disclosure provides a gas separation membrane module that has: a housing; a gas separation membrane that is arranged inside the housing; and an adhesive part that fixes the gas separation membrane to the housing.

Disclosed is a moisture reactive hot melt adhesive composition prepared from a combination comprising a polyisocyanate; a polyol; a MA-SCA acid; one or both of an inorganic filler or an organosilane; optionally a thermoplastic polymer; and optionally one or more additives. Useful polyols include poly(hexanediol adipate), a polyester diol having a structure of Formula 1 or of Formula 2 and combinations thereof. Formula 1 is:

H—[O(CH.sub.2).sub.mOOC(CH.sub.2).sub.nCO].sub.k—O(CH.sub.2).sub.m—OH;

m and n are each an even integer; m+n =8; m and n are each independently selected from 2, 4 or 6; k is an integer from 9 to 55; and the polyol of Formula 1 has a number average molecular weight of about 2,000 to about 11,000. Formula 2, a polycaprolactone polyol, is:

HO—[(CH.sub.2).sub.5COO].sub.p—R.sub.1—[OOC(CH.sub.2).sub.5].sub.1—OH;

R.sub.1 is an initiator such as 1,4′-butanediol, 1,6′-hexanediol, or ethylene glycol; p is an integer from 0 to 96; q is an integer from 0 to 96; p+q=16 to 96; and the polyol has a number average molecular weight of about 2,000 to about 11,000 or less.