C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 35/06 (2006.01) C08F 2/38 (2006.01) C08F 212/04 (2006.01) C08J 7/04 (2006.01) C08L 25/08 (2006.01) D21H 19/58 (2006.01)
Patent
CA 2165805
The present invention refers to polymer latex compositions, such as, for example, styrene-butadiene-based or styrene-acrylate-based latices, prepared with sulfur- and halogen-free chain transfer agents, wherein the sulfur- and halogen-free chain transfer agents are abietic acid- containing rosins, such as abietic acid-containing gum rosin. The polymer latex compositions of the present invention exhibit surprisingly high binding strength despite high gel content, and a balanced application profile of paper gloss, ink gloss and ink set-off properties. The polymer latex compositions of the present invention further exhibit the advantage of being of less odor than typical latex-based paper coating compositions.
Compositions de latex polymères, par exemple de latex à base de styrène-butadiène ou de styrène-acrylate, préparées à l'aide d'agents de migration de chaîne exempts de soufre et d'halogène, les agents de migration de chaîne exemps de soufre et d'halogène étant des colophanes renfermant de l'acide abiétique, par exemple la colophane de gemme renfermant de l'acide abiétique. Lesdites compositions de latex polymères présentent un pouvoir agglutinant remarquablement élevé malgré leur teneur élevée en gel, et un profil d'application équilibré des propriétés de satinage du papier, de brillance de l'encre et de maculage de l'encre. Lesdites compositions de latex polymères ont également l'avantage d'être moins odorantes que les compositions classiques de couchage du papier à base de latex.
Elsaesser Dominik Martin
Salminen Pekka Johannes
Stollmaier Friederike Theresia
Dow Global Technologies Inc.
Smart & Biggar
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