Methods of making components for a medicinal delivery device are described, in which a base composition comprising a polysulphone is applied to the surface of a component to create a base layer, a primer composition comprising a silane having two or more reactive silane groups separated by an organic linker group is applied to the base layer to create primed surface, and a coating composition comprising an at least partially fluorinated compound is applied to the primed surface. Corresponding coated components and a medicinal delivery device are disclosed.

Provided are a copolymer of diallylamines and sulfur dioxide having a high molecular weight and a low content amount of impurities such as halogens, and a production method with which it is possible to produce such a copolymer relatively simply and at low cost. This problem is solved by: a copolymer having a weight-average molecular weight of 150,000 or higher obtained by GPC measurement and a degree of polymerization of 1000 or higher, the copolymer being obtained by copolymerizing sulfur dioxide and a sulfonate or alkyl sulfate salt of diallylamines having a specific structure; and a method for producing a copolymer, the method having a step for copolymerizing sulfur dioxide and a sulfonate or alkyl sulfate salt of diallylamines having a specific structure in ethylene glycol or in propylene glycol monomethyl ether.

Provided are a copolymer of diallylamines and sulfur dioxide having a high molecular weight and a low content amount of impurities such as halogens, and a production method with which it is possible to produce such a copolymer relatively simply and at low cost. This problem is solved by: a copolymer having a weight-average molecular weight of 150,000 or higher obtained by GPC measurement and a degree of polymerization of 1000 or higher, the copolymer being obtained by copolymerizing sulfur dioxide and a sulfonate or alkyl sulfate salt of diallylamines having a specific structure; and a method for producing a copolymer, the method having a step for copolymerizing sulfur dioxide and a sulfonate or alkyl sulfate salt of diallylamines having a specific structure in ethylene glycol or in propylene glycol monomethyl ether.

A long-acting super-hydrophobic coating resistant to water pressure impact and preparation method thereof. The long-acting super-hydrophobic coating includes a conductive substrate and the following raw materials in parts by weight: 1 part to 10 parts of titanium source or zinc source, 40 parts to 100 parts of deionized water, 20 parts to 50 parts of hydrochloric acid or 20 parts to 40 parts of sodium hydroxide, 1 part to 10 parts of electrolyte, 1 part to 10 parts of low surface energy modifier, 10 parts to 20 parts of high molecular polymer, 1 part to 5 parts of carbon nanotube and 70 parts to 100 parts of organic solvent. The long-acting super-hydrophobic coating has an organic-inorganic nano-interpenetrating network structure, which improves the stability of the multi-stage nano-micro structure, so that the super-hydrophobic coating surface has a good high-pressure water impact resistance and high-pressure static water resistance.

A long-acting super-hydrophobic coating resistant to water pressure impact and preparation method thereof. The long-acting super-hydrophobic coating includes a conductive substrate and the following raw materials in parts by weight: 1 part to 10 parts of titanium source or zinc source, 40 parts to 100 parts of deionized water, 20 parts to 50 parts of hydrochloric acid or 20 parts to 40 parts of sodium hydroxide, 1 part to 10 parts of electrolyte, 1 part to 10 parts of low surface energy modifier, 10 parts to 20 parts of high molecular polymer, 1 part to 5 parts of carbon nanotube and 70 parts to 100 parts of organic solvent. The long-acting super-hydrophobic coating has an organic-inorganic nano-interpenetrating network structure, which improves the stability of the multi-stage nano-micro structure, so that the super-hydrophobic coating surface has a good high-pressure water impact resistance and high-pressure static water resistance.

Described herein is a composition including a polymeric matrix having a first refractive index, and a plurality of particles dispersed therein, wherein each particle within the plurality of particles comprises an inorganic core and polymer chains grafted thereon, wherein the particle has a second refractive index that is different from the first refractive index.

Described herein is a composition including a polymeric matrix having a first refractive index, and a plurality of particles dispersed therein, wherein each particle within the plurality of particles comprises an inorganic core and polymer chains grafted thereon, wherein the particle has a second refractive index that is different from the first refractive index.

The present application discloses a polymer material, membrane and coating as well as preparation methods and applications thereof. The polymer material is formed by the phase inversion of a polymer compound containing an ionizable hydrophilic group and the ionization of the hydrophilic group. The polymer material has a static contact angle of greater than 140 and an adhesive force of less than 10 N with respect to multiple oil phase systems in water. The polymer material provided by the present application has an underwater super-hydrophobic property and an anti-adhesion function not only to diesel, oil, edible oil and other low-viscosity light oil and numerous water-immiscible organic solvents, but also to petroleum, heavy oil, silicone oil, heavy diesel and other high-viscosity oil. A membrane, coating and the like formed from the polymer material is resistant to oil adhesion and contamination in water along with a self-cleaning effect, and thus has a broad application prospect in a variety of fields.

The present application discloses a polymer material, membrane and coating as well as preparation methods and applications thereof. The polymer material is formed by the phase inversion of a polymer compound containing an ionizable hydrophilic group and the ionization of the hydrophilic group. The polymer material has a static contact angle of greater than 140 and an adhesive force of less than 10 N with respect to multiple oil phase systems in water. The polymer material provided by the present application has an underwater super-hydrophobic property and an anti-adhesion function not only to diesel, oil, edible oil and other low-viscosity light oil and numerous water-immiscible organic solvents, but also to petroleum, heavy oil, silicone oil, heavy diesel and other high-viscosity oil. A membrane, coating and the like formed from the polymer material is resistant to oil adhesion and contamination in water along with a self-cleaning effect, and thus has a broad application prospect in a variety of fields.

The present invention relates to a resin solution composition containing at least one resin selected from the group consisting of aromatic polysulfones, aromatic polyamideimides, aromatic polyetherimides, aromatic polyimides and aromatic polyamic acids, a sulfone-based solvent, and an ester-based solvent, wherein in this resin solution composition, an amount of the resin, relative to the total mass of the resin solution composition, is at least 10% by mass but not more than 50% by mass, and an amount of the ester-based solvent, relative to the total amount of the sulfone-based solvent and the ester-based solvent, is at least 15% by mass but not more than 85% by mass.