C09D129/14

Acid-degradable and bioerodible modified polyhydroxylated materials

Compositions and methods of making a modified polyhydroxylated polymer comprising a polyhydroxylated polymer having reversibly modified hydroxyl groups, whereby the hydroxyl groups are modified by an acid-catalyzed reaction between a polydroxylated polymer and a reagent such as acetals, aldehydes, vinyl ethers and ketones such that the modified polyhydroxylated polymers become insoluble in water but freely soluble in common organic solvents allowing for the facile preparation of acid-sensitive materials. Materials made from these polymers can be made to degrade in a pH-dependent manner. Both hydrophobic and hydrophilic cargoes were successfully loaded into particles made from the present polymers using single and double emulsion techniques, respectively. Due to its ease of preparation, processability, pH-sensitivity, and biocompatibility, of the present modified polyhydroxylated polymers should find use in numerous drug delivery applications.

Wash primer composition

A coating composition includes a (A) binder component and a (B) pigment component. The (A) binder component includes (A1) polyvinyl butyrate, (A2) a particular film forming resin, (A3) an acid, (A4) an optional functionalized tri-alkoxy silane, and (A5) an optional polymeric phosphate ester. The (B) pigment component includes (B1) a calcium ion-exchanged silica, (B2) a corrosion inhibiting pigment, and (B3), a polyalkylene oxide phosphate. The coating composition is formed by combining the aforementioned components. In a method, the coating composition is applied to a substrate.

Wash primer composition

A coating composition includes a (A) binder component and a (B) pigment component. The (A) binder component includes (A1) polyvinyl butyrate, (A2) a particular film forming resin, (A3) an acid, (A4) an optional functionalized tri-alkoxy silane, and (A5) an optional polymeric phosphate ester. The (B) pigment component includes (B1) a calcium ion-exchanged silica, (B2) a corrosion inhibiting pigment, and (B3), a polyalkylene oxide phosphate. The coating composition is formed by combining the aforementioned components. In a method, the coating composition is applied to a substrate.

Electrophotographic photoreceptor and electrophotographic device equipped with the same
10983435 · 2021-04-20 · ·

An electrophotographic device equipped with a negatively-charged laminated electrophotographic photoreceptor that can be charged by a scorotron charging method, and includes a conductive substrate, and a charge generation layer and a charge transport layer sequentially provided on the conductive substrate, wherein the charge generation layer contains a charge generation material and a resin binder that is a poly(vinyl butyral) resin binder, and the charge transport layer contains a charge transport material that is either or both of stilbene compounds represented by Formula (1) and Formula (2), a binder resin, and an oxidation inhibitor that is tribenzylamine represented by Formula 3, wherein the conductive substrate is cylindrical, the electrophotographic photoreceptor has a difference between a maximum value and a minimum value of a surface potential in a circumferential direction, after exposure to ozone at an exposure dose of 100 ppm.Math.h, that is 12 V or less.

Electrophotographic photoreceptor and electrophotographic device equipped with the same
10983435 · 2021-04-20 · ·

An electrophotographic device equipped with a negatively-charged laminated electrophotographic photoreceptor that can be charged by a scorotron charging method, and includes a conductive substrate, and a charge generation layer and a charge transport layer sequentially provided on the conductive substrate, wherein the charge generation layer contains a charge generation material and a resin binder that is a poly(vinyl butyral) resin binder, and the charge transport layer contains a charge transport material that is either or both of stilbene compounds represented by Formula (1) and Formula (2), a binder resin, and an oxidation inhibitor that is tribenzylamine represented by Formula 3, wherein the conductive substrate is cylindrical, the electrophotographic photoreceptor has a difference between a maximum value and a minimum value of a surface potential in a circumferential direction, after exposure to ozone at an exposure dose of 100 ppm.Math.h, that is 12 V or less.

COMPOSITION FOR FORMING COATING FILM
20210038530 · 2021-02-11 · ·

Provided is a composition for forming a coating film directly on the skin by an electrostatic spray, the composition being capable of forming a coating film having excellent skin compatibility, adhesion, and scratch resistance, having a good feel, and being easy to peel. A composition for forming a coating film, for forming a coating film composed of fibers directly on the skin by an electrostatic spray, the composition comprising the following Components (a), (b), (c), and (d): (a) a polymer having a coating film forming ability (b) one or more volatile substances selected from the group consisting of an alcohol and a ketone (c) a plasticizer (d) a feel modifier other than Component (c).

COMPOSITION FOR FORMING COATING FILM
20210038530 · 2021-02-11 · ·

Provided is a composition for forming a coating film directly on the skin by an electrostatic spray, the composition being capable of forming a coating film having excellent skin compatibility, adhesion, and scratch resistance, having a good feel, and being easy to peel. A composition for forming a coating film, for forming a coating film composed of fibers directly on the skin by an electrostatic spray, the composition comprising the following Components (a), (b), (c), and (d): (a) a polymer having a coating film forming ability (b) one or more volatile substances selected from the group consisting of an alcohol and a ketone (c) a plasticizer (d) a feel modifier other than Component (c).

Optical film, optical laminate, functional glass, and head-up display

The present disclosure relates to an optical film includes (A) an optical functional layer and (B) a block layer, and (B) the block layer has a cured product of a resin composition containing (B-1) a thermoplastic resin and (B-2) an ultraviolet curable resin.

Optical film, optical laminate, functional glass, and head-up display

The present disclosure relates to an optical film includes (A) an optical functional layer and (B) a block layer, and (B) the block layer has a cured product of a resin composition containing (B-1) a thermoplastic resin and (B-2) an ultraviolet curable resin.

Aqueous anti-rust surface treatment composition and surface-coated metal member

An aqueous anti-rust surface treatment composition used for forming a film on a surface of a metal member of the present invention contains a silane coupling agent; a water-soluble transition metal compound containing a water-soluble titanium compound or a water-soluble zirconium compound; a condensed phosphate; and a solvent containing water, in which the condensed phosphate contains a highly condensed phosphate which is a salt of high condensate of equal to or more than four phosphoric acids.