Abstract: The present invention refers to a photocurable composition comprising at least one polythiol having at least two thiol groups, at least one polyisocyanate having at least two isocyanate groups, at least one epoxy compound having at least one epoxy group, and at least one photolatent base catalyst. Furthermore, the present invention pertains to a method of photo-curing the photo-curable composition according to the present invention as well as to a method of three dimensional printing an object with the photocurable composition according to the present invention.

Abstract: The present invention relates a adhesive composition, which comprising from 50 to 99 weight parts of water-based solvent, from 0.5 to 10 weight parts of polyvinyl alcohol, and from 0.01 to 2 weight parts of R1Si(OR2)3, wherein R1 is a hydrocarbonyl group having a cross-linking functional group and R2s are same or different and each is a hydrogen atom or hydrocarbonyl group. A pre-treatment method for support film is also related, wherein the support film is endowed with —Si—O— groups and can be used to manufacture polarizing sheets with the adhesive composition together.