Compliant overprint varnishes

Details Compliant overprint varnishes Compliant overprint varnishes

C - Chemistry, Metallurgy

08

G

C08G 63/49 (2006.01) B32B 15/08 (2006.01) C09D 167/08 (2006.01) C08L 61/20 (2006.01)

Patent

CA 2484347

The present invention provides a coating composition useful as a varnish coating comprising an alkyd resin having number average molecular weight of between about 500 and 2,000, and a polydispersity of less than about 2. The coating composition, after being rebaked, is substantially color stable. The coating composition is substantially flexible for use as a can container body varnish. The present invention also provides a coated substrate that is coated with the coating composition of the present invention.

L'invention concerne une composition de revêtement utile comme revêtement de vernis, qui renferme une résine alkydique à masse moléculaire moyenne en nombre comprise entre environ 500 et 2 000, et à polydispersité inférieure à environ 2. Une fois recuite, cette composition est sensiblement stable du point de vue de la couleur. Elle est sensiblement flexible et peut être utilisée comme vernis sur un corps de contenant. L'invention concerne également un substrat revêtu au moyen de ladite composition.

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