The one-part moisture-curable urethane composition of the present technology includes: a urethane prepolymer (A) having an isocyanate group; at least one type of compound (B) selected from the group consisting of an aliphatic isocyanate compound and a modified product of the aliphatic isocyanate compound; and a monoalcohol compound (C) having a hydroxy group, the monoalcohol compound (C) being blended in an amount such that the amount of the hydroxy group in the monoalcohol compound (C) is from 0.025 to 0.4 mol per 1 mol of the isocyanate group in the urethane prepolymer (A).

An insulating material, especially a non-flammable thermally insulating material containing water glass and a plastic component consisting of a mixture containing 43 to 57.5 weight percent of a plastic component, 30 to 47 weight percent of an aqueous solution of silicate, 9 to 11.5 weight percent of hollow glass microspheres, and 0.1 to 1 weight percent of a water glass stabilizer. Method of production of the insulating material, especially method of production of the non-flammable thermally insulating material lying in the fact that, as the first step, a water glass stabilizer is added into the aqueous solution of silicate and, at the same time, a mixture of phenyl methyl diisocyanate and branched polyol is prepared and then the aqueous solution of silicate is intermixed with the mixture of phenyl methyl diisocyanate and branched polyol and thereafter hollow glass spheres are added into the resulting mixture and everything is then thoroughly mixed again.

An amine functional compound is provided comprising: i. at least one segment consisting of at least one ether unit and at least one ester unit, wherein the ether units and ester units are connected by an ether link or an ester link, and wherein the sum of the number of ether units and ester units is at least three, and wherein the ether units and ester units are arranged in random order, and ii. at least one amine group ii. selected from a tertiary amine group, a salt of a tertiary amine group and a quaternary ammonium group, and wherein each segment i. is covalently linked to the at least one amine group ii. via a linkage comprising an urethane group and another group selected from an urethane group, an urea group, a biuret group and an allophanate group.

The teachings herein relate to new compositions for thermal interface materials that provide improved thermal conductivity without requiring filler materials that are expensive or abrasive. The improved thermal conductivity is achieved using a combination of increased filler loading, selection of a filler having abroad particle size distribution, and selection of filler that is non-abrasive. The thermal interface material preferably has a specific gravity of about 4.0 or less, about 3.0 or less, about 2.5 or less, or about 2.4 or less. The thermal interface material may be a two-part composition. In order to achieve maximum thermal conductivity, each part preferably includes a liquid matrix material and dispersed filler. Upon mixing, the first and second parts may react to increase this viscosity (e.g., by polymerizing and/or cross-linking). The first part preferably includes a carbamate-containing compound that reacts with a carbamate-reactive compound, which is preferably in the second component. The first part preferably is substantially or entirely free of isocyanate containing compounds, as these compounds may reduce the shelf life stability of the composition. The carbamate-reactive compound preferably is a polyamine, including two or more spaced apart amine groups. The first part, the second part, or both, preferably includes a catalyst for accelerating the reaction between the carbamate-containing compound and the carbamate-reactive compound.

The teachings herein relate to new compositions for thermal interface materials that provide improved thermal conductivity without requiring filler materials that are expensive or abrasive. The improved thermal conductivity is achieved using a combination of increased filler loading, selection of a filler having abroad particle size distribution, and selection of filler that is non-abrasive. The thermal interface material preferably has a specific gravity of about 4.0 or less, about 3.0 or less, about 2.5 or less, or about 2.4 or less. The thermal interface material may be a two-part composition. In order to achieve maximum thermal conductivity, each part preferably includes a liquid matrix material and dispersed filler. Upon mixing, the first and second parts may react to increase this viscosity (e.g., by polymerizing and/or cross-linking). The first part preferably includes a carbamate-containing compound that reacts with a carbamate-reactive compound, which is preferably in the second component. The first part preferably is substantially or entirely free of isocyanate containing compounds, as these compounds may reduce the shelf life stability of the composition. The carbamate-reactive compound preferably is a polyamine, including two or more spaced apart amine groups. The first part, the second part, or both, preferably includes a catalyst for accelerating the reaction between the carbamate-containing compound and the carbamate-reactive compound.

The invention relates to a composition comprising: —a composition A containing at least one polyurethane comprising at least two terminal functions T of formula (I): and —a composition B comprising at least one amine. Also disclosed is the use of said composition. ##STR00001##

The invention relates to a composition comprising: a) 10 to 60% by weight of one or more urea components having a number average molecular weight Mn above 350 g/mol, and b) 40 to 90% by weight of one or more carboxylic acid components according to formula (I): HO—R.sup.1—COOH, wherein R.sup.1 represents an organic group having 3 to 75 carbon atoms, and wherein the % by weight are calculated on the sum of components a) and b).

A thermoplastic polyurethane resin elastomer is obtained by reacting an isocyanate compound (I), an aliphatic alcohol (II) having a number average molecular weight determined from the hydroxyl value of less than 300 and having only a hydroxyl group as a functional group, and a polyol (III) having a number average molecular weight determined from the hydroxyl value of not less than 300 and not more than 10,000. The isocyanate compound (I) includes not less than 90 mol % in total of an aliphatic isocyanate compound containing two isocyanate groups and/or an alicyclic isocyanate compound containing two isocyanate groups. The aliphatic alcohol (II) includes not less than 90 mol % of a C12 or lower aliphatic diol. The polyol (III) includes not less than 80 mol % of a copolymerized polycarbonate diol (IIIA) including a linear repeating structural unit represented by formula (A) and a repeating structural unit represented by formula (B).

##STR00001##

An allophanate group-containing polyisocyanate composition that contributes to the formation of a polyurethane resin with fewer bubbles is provided.

Disclosed is an allophanate group-containing polyisocyanate composition (C) including a reaction product of diphenylmethane diisocyanate (A) and a hydroxyl group-containing compound (B), wherein the hydroxyl group-containing compound (B) includes a hydroxyl group-containing polymethylsiloxane compound (B-1) in an amount of 1 ppm or more and 300 ppm or less.

The present invention relates to [1] a polymerizable composition for optical member containing a polymerizable component and a urethaneurea compound having a structural unit derived from tolylene diisocyanate in an amount of 0.1 to 10 parts by mass based on 100 parts by mass of a total amount of the polymerizable component; [2] a production method of an optical member, including a step of injecting the polymerizable composition of [1] into a molding die, and a step of polymerizing the polymerizable composition; and [3] a spectacle lens including a spectacle lens substrate obtained by the production method of [2].