Abstract: The present invention relates to a release agent composition for papermaking, an emulsion, a preparation method and a use method thereof. The release agent emulsion of the present invention comprises (a) a hydrophobic material; (b) a cationic surfactant, comprising a quaternary ammonium salt type surfactant; and (c) a nonionic surfactant, comprising a polyoxyethylene type nonionic surfactant, wherein the emulsion is free of anionic surfactants, and wherein the emulsion has a particle size of about 0.05-1 ?m. The release agent emulsion manufactured according to the method of the present invention has a small particle size, a narrow particle size distribution, and good stability, and thereby has significant application meanings in the papermaking process, especially in the production of crepe paper.

Abstract: Provided herein is a pressure sensitive adhesive (PSA) that has balanced high shear and high peel strength. The PSA comprises a combination of epoxy and isocyanate crosslinkers and a polyacrylate tackifier.

Abstract: An N-alkyl tryptanthrin derivative, a preparation method for same, and an application thereof are provided. The structure of the derivative is as represented by formula I. The N-alkyl tryptanthrin derivative can serve as a highly active IDO inhibitor, for use in preparing a medicament for prevention and/or treatment of a disease having a pathological characteristic of an IDO-mediated tryptophan metabolic pathway.

Abstract: An N-alkyl tryptanthrin derivative, a preparation method for same, and an application thereof are provided. The structure of the derivative is as represented by formula I. The N-alkyl tryptanthrin derivative can serve as a highly active IDO inhibitor, for use in preparing a medicament for prevention and/or treatment of a disease having a pathological characteristic of an IDO-mediated tryptophan metabolic pathway.