A polarizing film includes a hydrophobic polymer and a dichroic dye, wherein the hydrophobic polymer includes a polypropylene polymer including about 0.5 mol % or less of an ethylene content (mol %), and has a distribution of a molecular weight of about 1 to about 5.

The present application describes a microcapsule comprising: (i) a lipophilic core material, and (ii) a microcapsule shell, wherein microcapsule shell formed from oil-in-water emulsion polymerisation of monomer mixture consisting essentially of: (a) greater than 70 to about 99% by weight of at least one polyfunctional ethylenically unsaturated monomer, (b) about 1 to about 30% by weight of at least one unsaturated carboxylic acid monomer or its ester, and (c) about 0 to about 30% by weight of at least one vinyl monomer. Also provides process for preparing the same and its method of use in various applications.

Curatives and their resulting thermosets and other crosslinked polymers can reduce thermal expansion mismatch between an encapsulant and objects that are encapsulated. This can be accomplished by incorporating a negative CTE moiety into the thermoset resin or polymer backbone. The negative CTE moiety can be a thermal contractile unit that shrinks as a result of thermally induced conversion from a twist-boat to chair or cis/trans isomerization upon heating. Beyond CTE matching, other potential uses for these crosslinked polymers and thermosets include passive energy generation, energy absorption at high strain rates, mechanophores, actuators, and piezoelectric applications.

[Problem] To provide a positive type photosensitive polysiloxane composition that can manufacture a cured film having a high surface smoothness, in which generation of wrinkles is suppressed even without adding a curing auxiliary or performing flood exposure. [Means for Solution] A positive type photosensitive polysiloxane composition comprising (I) a polysiloxane, (II) a carboxylic acid compound that is a monocarboxylic acid or a dicarboxylic acid, of 200 to 50,000 ppm based on the total mass of the composition, (III) a diazonaphthoquinone derivative, and (IV) a solvent, and a method for manufacturing a cured film using the composition.

[Problem] To provide a positive type photosensitive polysiloxane composition that can manufacture a cured film having a high surface smoothness, in which generation of wrinkles is suppressed even without adding a curing auxiliary or performing flood exposure. [Means for Solution] A positive type photosensitive polysiloxane composition comprising (I) a polysiloxane, (II) a carboxylic acid compound that is a monocarboxylic acid or a dicarboxylic acid, of 200 to 50,000 ppm based on the total mass of the composition, (III) a diazonaphthoquinone derivative, and (IV) a solvent, and a method for manufacturing a cured film using the composition.

The present invention relates to new aqueous curable binder compositions comprising a carbohydrate compound, a first cross linker and a second cross linker different from the first capable of undergoing radical polymerization and possibly a free radical initiator.

Curatives and their resulting thermosets and other crosslinked polymers can reduce thermal expansion mismatch between an encapsulant and objects that are encapsulated. This can be accomplished by incorporating a negative CTE moiety into the thermoset resin or polymer backbone. The negative CTE moiety can be a thermal contractile unit that shrinks as a result of thermally induced conversion from a twist-boat to chair or cis/trans isomerization upon heating. Beyond CTE matching, other potential uses for these crosslinked polymers and thermosets include passive energy generation, energy absorption at high strain rates, mechanophores, actuators, and piezoelectric applications.

Disclosed are an optical filter including a near infrared absorption layer on a polymer film. The polymer film has a* of about −5.0 to about +5.0 and b* of about −5.0 to about +5.0 in a color coordinate expressed by a CIE Lab color space. The near infrared absorption layer may be configured to transmit light in a visible region and to selectively absorb at least one part of light in a near infrared region. The near infrared absorption layer includes a first near infrared absorption material including a copper phosphate ester compound and a second near infrared absorption material including at least two different organic dyes. The second near infrared absorption material has a maximum absorption wavelength (λ.sub.max) in a wavelength region of about 650 nm to about 1200 nm. An electronic device may include the optical filter.

Disclosed are an optical filter including a near infrared absorption layer on a polymer film. The polymer film has a* of about −5.0 to about +5.0 and b* of about −5.0 to about +5.0 in a color coordinate expressed by a CIE Lab color space. The near infrared absorption layer may be configured to transmit light in a visible region and to selectively absorb at least one part of light in a near infrared region. The near infrared absorption layer includes a first near infrared absorption material including a copper phosphate ester compound and a second near infrared absorption material including at least two different organic dyes. The second near infrared absorption material has a maximum absorption wavelength (λ.sub.max) in a wavelength region of about 650 nm to about 1200 nm. An electronic device may include the optical filter.

Disclosed are an optical filter including a near infrared absorption layer on a polymer film. The polymer film has a* of about −5.0 to about +5.0 and b* of about −5.0 to about +5.0 in a color coordinate expressed by a CIE Lab color space. The near infrared absorption layer may be configured to transmit light in a visible region and to selectively absorb at least one part of light in a near infrared region. The near infrared absorption layer includes a first near infrared absorption material including a copper phosphate ester compound and a second near infrared absorption material including at least two different organic dyes. The second near infrared absorption material has a maximum absorption wavelength (λ.sub.max) in a wavelength region of about 650 nm to about 1200 nm. An electronic device may include the optical filter.