Ozone-friendly correction fluid with improved overwrite...

C - Chemistry – Metallurgy – 09 – D

Patent

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Details

400/7029

C09D 10/00 (2006.01)

Patent

CA 2211356

Generally, the invention relates to an ozone-friendly correction fluid that has improved writeover characteristics. The ozone-friendly correction fluids thus have a key benefit (good writeover characteristic) associated with halogenated hydrocarbon solvent-based correction fluids, but also have the environmental benefits associated with ozone-friendly solvent-based correction fluids. Specifically, the present invention relates to an ozone-friendly correction fluid comprising a non-halogenated hydrocarbon solvent, a polymeric phase and an opacifying phase, wherein the radio of opacifying phase to polymeric phase is from about 2.2 to about 3.8 preferably from about 2.4 to about 3.6 (based on weight).

L'invention a pour objet un liquide correcteur, sans danger pour l'ozone, qui présente des caractéristiques de réécriture améliorées. Les liquides correcteurs, sans danger pour l'ozone, présentent ainsi un avantage majeur (bonne caractéristique de réécriture) associé aux liquides correcteurs à base de solvant d'hydrocarbure halogéné. Toutefois, ils possèdent en plus les avantages de protection de l'environnement spécifiques aux liquides correcteurs à base de solvant sans risque pour l'ozone. De manière spécifique, la présente invention concerne un liquide correcteur sans risque pour l'ozone, comprenant un solvant d'hydrocarbure non halogéné, une phase polymère et une phase opacifiante, dans lequel le rapport de la phase opacifiante sur la phase polymère est compris entre environ 2,2 et environ 3,8, de préférence, entre environ 2,4 et environ 3,6 (en fonction du poids).

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