The plastic laminated film has both excellent mechanical properties and UV weathering resistance while being colorless and transparent, and can be suitably used as cover films for various flexible or foldable devices.

The present disclosure is directed to a base film having a chemically converted polyimide, a particulate polyimide matting agent and a low conductivity carbon black. The particulate polyimide matting agent is present in an amount from 1.6 to 9 weight percent of the base film.

The present invention provides: an optical laminate comprising at least two films, the optical laminate comprising at least a film A satisfying a given condition (1) and a film C satisfying a given condition (2), wherein a retardation value Re(0) observed in a direction of an axis perpendicular to a plane of the optical laminate is 4,000 to 30,000 nm, and a retardation value Re(40) observed in a direction of an axis tilted from the axis perpendicular to the plane of the optical laminate toward a slow axis by 40 degrees in a plane lying perpendicular to the plane of the optical laminate and extending along the slow axis is 4,000 to 25,000 nm, the slow axis being an axis along which refractive index is highest in a plane of the film A; and a display device comprising the optical laminate.

A rubber-metal bonded article with an adhesion promoter in the rubber selected from neoalkoxy zirconates and polyimides. Articles requiring compressed rubber exhibit improved retention of compressive strain after assembly of the article and activation of the adhesion promoter. Also claimed is a method wherein a rubber composition may be fully cured, then assembled between two substrates under compression, then the adhesion promoter activated to form the bond.

A polyetherimide manufactured by reaction of an alkali metal salt of a dihydroxy aromatic compound with a bis(halophthalimide) composition comprising, based on the weight of the bis(halophthalimide) composition, from more than 45 to less than 75 weight percent of a 3,3-bis(halophthalimide), less than 10 weight percent of a 3,4-bis(halophthalimide), and from more than 45 to less than 75 weight percent of a (4,4-bis(halophthalimide.

A polyamide acid of the present invention contains, as a diamine component, 2,2-bistrifluoromethylbenzidine and trans-1,4-cyclohexanediamine, and contains, as a tetracarboxylic acid dianhydride component, a pyromellitic acid anhydride and a 3,3,4,4-biphenyltetracarboxylic acid dianhydride. A ratio of the trans-1,4-cyclohexanediamine to a total amount of the diamine is preferably 0.5-40 mol %. A polyimide is obtained by dehydration ring closure of the polyamide acid.

A rubber-metal bonded article with an adhesion promoter in the rubber selected from neoalkoxy zirconates and polyimides. Articles requiring compressed rubber exhibit improved retention of compressive strain after assembly of the article and activation of the adhesion promoter. Also claimed is a method wherein a rubber composition may be fully cured, then assembled between two substrates under compression, then the adhesion promoter activated to form the bond.

An endless belt comprising a polyimide-based substrate layer. A plurality of boron nitride nanotubes are dispersed in the polyimide.

Aqueous inkjet ink formulations comprising a solvent including water and a co-solvent, a water soluble or water dispersible polymeric resin and a colorant, and a method for facilitating the use of such an aqueous inkjet ink in an indirect printing system in which the ink is jetted onto a hydrophobic release layer of an intermediate transfer member before having the solvent removed therefrom and being transferred to a substrate, wherein prior to the jetting of the ink the release layer is brought into contact with an aqueous solution of a positively charged polymeric chemical agent. Other aspects are also described.

A polymer film comprises a polymer composition containing (A) a cyclic olefin polymer and (B) a chlorine-containing polymer. The chlorine-containing polymer (B) may comprise a vinylidene chloride-series polymer. The cyclic olefin polymer (A) may comprise a cyclic olefin copolymer. The ratio of the chlorine-containing polymer (B) relative to 100 parts by weight of the cyclic olefin polymer (A) may be 0.5 to 60 parts by weight. The film has a moderate releasability from an electrolyte membrane and an electrode membrane of a polymer electrolyte fuel cell and a moderate adhesion to the electrolyte membrane and the electrode membrane and can adhere to a commonly-used substrate film without interposition of an adhesive layer such as an easily adhesive layer. The film is thus suitable as a release film for producing a membrane electrode assembly of a polymer electrolyte fuel cell.