A process for manufacturing a display device, an optical device or an illuminating device includes casting a polyamide solution onto a base at temperature below 200° C. to obtain a film, heating the film on the base at temperature sufficient to make the film solvent resistant and obtain a polyamide film, forming on a surface of the polyamide film one of a display element, an optical element and an illumination element to form a display device, an optical device or an illumination device, and de-bonding the base from the display device, the optical device or the illuminating device. The polyamide solution comprises a solvent, an aromatic polyamide dissolved in the solvent, and a multifunctional epoxyde, where the aromatic polyamide comprises at least one functional group that reacts with an epoxy group, the aromatic polyamide comprises a first repeat unit of formula (I) and a second repeat unit of formula (II)

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A process for manufacturing a display device, an optical device or an illuminating device includes casting a polyamide solution onto a base at temperature below 200° C. to obtain a film, heating the film on the base at temperature sufficient to make the film solvent resistant and obtain a polyamide film, forming on a surface of the polyamide film one of a display element, an optical element and an illumination element to form a display device, an optical device or an illumination device, and de-bonding the base from the display device, the optical device or the illuminating device. The polyamide solution comprises a solvent, an aromatic polyamide dissolved in the solvent, and a multifunctional epoxyde, where the aromatic polyamide comprises at least one functional group that reacts with an epoxy group, the aromatic polyamide comprises a first repeat unit of formula (I) and a second repeat unit of formula (II)

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A sulfonated aliphatic or aromatic compound for the production of a modified polyamide that can significantly increase the glass transition temperature of the polyamide is described. A polyamide composition including at least: one polyamide modified by a sulfonated compound, the compound being chemically bonded to the polymer chain of the polyamide; and reinforcing or filling agents is also described. The composition can be a composition to be molded, for example, in the form of granules or powder, to be used in the production of articles using an injection molding method.

A sulfonated aliphatic or aromatic compound for the production of a modified polyamide that can significantly increase the glass transition temperature of the polyamide is described. A polyamide composition including at least: one polyamide modified by a sulfonated compound, the compound being chemically bonded to the polymer chain of the polyamide; and reinforcing or filling agents is also described. The composition can be a composition to be molded, for example, in the form of granules or powder, to be used in the production of articles using an injection molding method.

The present invention relates to a polyamide resin in which an average particle size of individual crystals measured by a small-angle X-ray scattering apparatus is 8.0 nm or less, and a UV-cut slope (dT/dλ) measured for a specimen having a thickness of 45 μm or more and 55 μm or less according to ASTM E424 is 0.25 or more in the range of 10% to 80% transmittance, and a polymer film and resin laminate using the same. In addition, the present invention relates to a polyamide resin with characteristic profile in which a small-angle X-ray scattering function obtained by irradiating the polyamide resin with X-rays having an energy of 10 KeV to 20 KeV using a small-angle X-ray scattering apparatus satisfies Equation 1 and Equation 2, and a polymer film and resin laminate using the same.

The present invention relates to the field of polymers used to form coatings at the surface of supports.

More particularly, the invention relates to a polymer having adhesion properties, in particular with regard to an organic or inorganic support, characterized in that it comprises at least one and preferably several consecutive or non-consecutive structural units of formula (I):

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in which: B represents a carbonyl or —NR′— unit with R′ representing a hydrogen atom, a C.sub.1 to C.sub.6 alkyl radical, or a C.sub.5 to C.sub.6 aryl, carbamate or acyl radical; and R represents: a hydrogen atom, a linear or branched, saturated or unsaturated C.sub.1 to C.sub.6 hydrocarbon-based radical which, where appropriate, is substituted with one or more halogen atoms, a C.sub.5 to C.sub.6 aryl radical, or an acyl, acyloxy, alkoxycarbonyl or cyano radical.

Methods for preparation of novel amphiphilic derivatives of thioether containing block copolypeptides with narrow chain length distributions are described. These block copolymers can be chemically modified by oxidation and alkylation of the thioether containing residues. These materials generate self-assembled micelles, vesicles and hydrogels, or emulsions with oil phases. These assemblies can be used to encapsulate and delivery therapeutic molecules. The assemblies can be taken up by cells to release molecules from the assemblies.

Methods for preparation of novel amphiphilic derivatives of thioether containing block copolypeptides with narrow chain length distributions are described. These block copolymers can be chemically modified by oxidation and alkylation of the thioether containing residues. These materials generate self-assembled micelles, vesicles and hydrogels, or emulsions with oil phases. These assemblies can be used to encapsulate and delivery therapeutic molecules. The assemblies can be taken up by cells to release molecules from the assemblies.

A block comprised of a copolymer is obtained by ring-opening polymerization of a cyclic polyarylene sulfide, so that a block copolymer is produced to have a maximum peak molecular weight measured by size exclusion chromatography (SEC) in a range of not less than 2,000 and less than 2,000,000 and have a unimodal molecular weight distribution in this range.

A block comprised of a copolymer is obtained by ring-opening polymerization of a cyclic polyarylene sulfide, so that a block copolymer is produced to have a maximum peak molecular weight measured by size exclusion chromatography (SEC) in a range of not less than 2,000 and less than 2,000,000 and have a unimodal molecular weight distribution in this range.