Abstract: Provided is an method for bonding substrates together using an aqueous adhesive composition comprising a polymer that comprises (a) polymerized units of one or more alkyl (meth)acrylate monomer, (b) polymerized units of acrylic acid or methacrylic acid or a mixture thereof, (c) polymerized units of one or more dialkyl diester of itaconic acid, and (d)polymerized units of one or more other monomer.

Abstract: A method for forming chrome-free retanned leather including: (a) contacting wet white with from 1% to 8%, by solids weight, based on the wet weight of wet white, retanning agent selected from the group consisting of: i) an aqueous emulsion polymer including, as copolymerized units, from 2% to 35%, by weight, based on the weight of the emulsion polymer, ethylenically-unsaturated monomer bearing at least one epoxy group, the emulsion polymer having a weight average molecular weight of from 2,000 to 100,000; ii) a compound selected from the group comprising piperazine, piperazine hydrates, salts of piperazine, and combinations thereof; and iii) combinations of i) and ii); (b) heating the contacted wet white; and (c) drying the contacted, heated wet white is provided. The present application also relates to chrome-free retanned leather formed by the method of the invention.

Abstract: The invention provides an adhesive sheet comprising polyvinyl chloride (PVC) film and back coating of water based PSA, wherein said PSA comprises a copolymer by copolymerization of a monomer mixture comprising, a) from 30 wt % to less than 70 wt % acrylic acid C4-C8-alkylester, and b) from 2 wt % to 9 wt % (meth)acrylonitrile, wherein the polyvinyl chloride film is not corona treated. The adhesive sheet is suitable for applications of indoor and outdoor graphic poster, especially for clean removable usages.