Stabilized rosin and process for production and use thereof

Details Stabilized rosin and process for production and use thereof Stabilized rosin and process for production and use thereof

C - Chemistry, Metallurgy

07

C

C07C 61/39 (2006.01) C07C 61/29 (2006.01) C09F 1/02 (2006.01) C09F 1/04 (2006.01) C09J 193/04 (2006.01) C09J 201/00 (2006.01) D06M 15/17 (2006.01) D21H 17/62 (2006.01) D21H 21/16 (2006.01)

Patent

CA 2071750

A process for the production of a stabilized rosin and a stabilized rosin obtainable by the process. According to the process rosin is heated in the presence of a phosphoric acid or a strong acid in combination with a phosphate containing substance and disproportionated by addition of iodine. Preferably the rosin is first heated in the presence of the phosphoric acid or the strong acid in combination with the phosphate containing substance and thereafter disproportionated by the addition of iodine. Iodine is preferably added in at least two steps and the disproportionation is allowed to proceed between each step. The stabilized rosin can be used as a tackifier resin in adhesives and as a sizing agent for paper, paper boards and similar products.

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