Disclosed are polymer polyol compositions that include an amino diphenylamine, optionally in combination with other antioxidants, such as phenolic antioxidants, as well the use of such polymer polyol compositions in the production of flexible polyurethane foams. The polyurethane foam includes a reaction product of a polyisocyanate component and an isocyanate-reactive component that includes the polymer polyol composition.

Disclosed are polymer polyol compositions that include an amino diphenylamine, optionally in combination with other antioxidants, such as phenolic antioxidants, as well the use of such polymer polyol compositions in the production of flexible polyurethane foams. The polyurethane foam includes a reaction product of a polyisocyanate component and an isocyanate-reactive component that includes the polymer polyol composition.

The invention discloses a composition for fiber surface treatment and a process for treating a fiber. The fiber surface treatment composition of the invention includes maleic anhydride polymer, epoxy resin, blocked isocyanate, curing agent, rubber latex, solvent and optional filler. The fiber treated by the invention has excellent adhesion effects, reaching or even exceeding the adhesion level of RFL treatment.

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.

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.

In an optical material of the disclosure, a transmittance curve satisfies the following characteristic (1) and a luminous transmittance satisfies the following characteristic (2), the transmittance curve and the luminous transmittance being measured at a thickness of 2 mm, (1) a maximum transmittance at a wavelength of from 410 nm to 450 nm is from 20% to 65%, and (2) the luminous transmittance is from 70% to 85%.

In an optical material of the disclosure, a transmittance curve satisfies the following characteristic (1) and a luminous transmittance satisfies the following characteristic (2), the transmittance curve and the luminous transmittance being measured at a thickness of 2 mm, (1) a maximum transmittance at a wavelength of from 410 nm to 450 nm is from 20% to 65%, and (2) the luminous transmittance is from 70% to 85%.

A rubber composition in which a diene rubber containing hydroxyl groups and a polyrotaxane containing a hydrocarbon-modified cyclodextrin as cyclic molecules are urethane-crosslinked by an isocyanate that is a crosslinking agent.