The present invention provides a polyimide film for a roll type graphite sheet prepared by imidizing a polyamic acid formed by a reaction of a dianhydride monomer and a diamine monomer, where the polyimide film has a modulus of 2.7 GPa or more.

An embodiment of the present invention provides: an adhesive coating composition capable of attaching (coupling) an electrical steel sheet without using an existing coupling method, such as welding, clamping, or interlocking; an electrical steel sheet laminate employing the same; and a manufacturing method therefor. The adhesive coating composition according to an embodiment of the present invention comprises: 40-95 wt % of a first component comprising an organic/inorganic composite in which inorganic nanoparticles are substituted in a water-soluble resin; 1-50 wt % of a second component comprising a composite metal phosphate; and 1-10 wt % of an additive.

The invention features adhesive devices for holding objects (e.g., bone fragments) fixed with respect to each other.

Hypophosphorous acid metal salts powders are used as flame retardant agents in flame retarded compositions suitable for polymer materials.

The invention features adhesive devices for holding objects (e.g., bone fragments) fixed with respect to each other.

A camera module containing a molded part (e.g., generally planar base, lens barrel mounted on the base, etc.) that is formed form a polymer composition is provided. The polymer composition includes a liquid crystalline polymer and inorganic particles that have a hardness value of about 2.5 or more based on the Mohs hardness scale.

A paint system comprising a first component and a second component wherein said first and second components are separate compositions, wherein said first component is a removable paint composition comprising: (i) an organic solvent component comprising or consisting of one or more organic solvent(s); (ii) a polymeric component comprising a polymeric binder; (iii) a pigment component; and (iv) optionally one or more acid(s), and wherein said second component is a remover composition for removing said first component from a surface of a substrate wherein said remover composition comprises: (i) water and (ii) a base.

The flame retardant foam is a molded form of a mixture containing at least a cellulose containing powder, a hydrophilic polymer, a foamable thermoplastic resin, a flame retardant, and water. The mixture contains at least one of tricalcium phosphate or silica as a dispersant.

The flame retardant foam is a molded form of a mixture containing at least a cellulose containing powder, a hydrophilic polymer, a foamable thermoplastic resin, a flame retardant, and water. The mixture contains at least one of tricalcium phosphate or silica as a dispersant.

A method is provided for synthesizing PLA/apatite composites with improved mechanical strength. In one aspect, a calcium-phosphate/phosphonate hybrid shell is developed to incorporate more reactive hydroxyl groups onto hydroxyapatite (HA) particles. PLA is covalently bonded to HA calcium phosphate hybrid shell, creating a strong interphase between HA and PLA, thus significantly improve the mechanical strength in comparison to that of non-modified HA.