An optical device is provided in the present application. The present application provides an optical device capable of varying transmittance, and such optical device can be used for various applications such as eyewear, for example, sunglasses or AR (augmented reality) or VR (virtual reality) eyewear, an outer wall of a building or a sunroof for a vehicle.

A thin film laminate having high percentages of biomass microparticles, and methods of making the same involve mixing biomass-microfibers with an adhesive, wherein the mixture comprises at least 50% biomass-microfibers by weight, heating the mixture above the melt temperature of the adhesive, and disposing the heated mixture between plastic sheets.

A thin film laminate having high percentages of biomass microparticles, and methods of making the same involve mixing biomass-microfibers with an adhesive, wherein the mixture comprises at least 50% biomass-microfibers by weight, heating the mixture above the melt temperature of the adhesive, and disposing the heated mixture between plastic sheets.

Disclosed is a binder composition for a secondary battery which comprises an adhesive polymer and a solvent, wherein a viscosity of the binder composition at a solid concentration of 5.0% by mass is 50 mPa.Math.s or more, and a viscosity of a fraction which is obtained by centrifuging the binder composition at a solid concentration of 5.0% by mass and has a light transmittance of 65% or less is 30 mPa.Math.s or more.

Disclosed is a binder composition for a secondary battery which comprises an adhesive polymer and a solvent, wherein a viscosity of the binder composition at a solid concentration of 5.0% by mass is 50 mPa.Math.s or more, and a viscosity of a fraction which is obtained by centrifuging the binder composition at a solid concentration of 5.0% by mass and has a light transmittance of 65% or less is 30 mPa.Math.s or more.

Disclosed herein are improved adhesive compositions for bonding textiles and methods of producing the same.

Disclosed herein are improved adhesive compositions for bonding textiles and methods of producing the same.

Disclosed herein are improved adhesive compositions for bonding textiles and methods of producing the same.

Disclosed herein are improved methods for bonding textiles using an adhesive composition.

Disclosed herein are improved methods for bonding textiles using an adhesive composition.