C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
C09D 9/00 (2006.01) C11D 7/50 (2006.01) C11D 7/24 (2006.01) C11D 7/26 (2006.01)
Patent
CA 2180853
This invention relates to a cleaner composition based on hydrocarbon solvents and its use for removal of ink in the printing industry. In particular this invention relates to a cleaner composition composed of: a) one or more aliphatic hydrocarbon solvents; b) from 2-40 %wt of one or more (i) monohydric alcohols and or (ii) polyhydric alcohols, each having a hydrogen bonding index (HBI) of less than 0 and a relative evaporation rate (RER) of at least 0.005; and c) from 0-30 %wt of one or more glycol ethers or esters, wherein the composition has a flash point of 50-80 °C, and contains at most 1 % by weight of aromatic hydrocarbons.
L'invention se rapporte à une composition de nettoyage à base de solvants à hydrocarbures ainsi qu'à l'utilisation de celle-ci pour enlever l'encre d'imprimerie. En particulier, cette invention se rapporte à une composition de nettoyage comprenant: a) un ou plusieurs solvants à hydrocarbures aliphatiques; b) 2 à 40 % en poids d'un ou de plusieurs alcools (i) monovalents et/ou (ii) polyvalents, chacun possédant un indice de liaison hydrogène (HBI) inférieur à 0 ainsi qu'un taux d'évaporation relatif (RER) d'au moins 0,005; et c) 0 à 30 % en poids d'un ou de plusieurs éthers ou esters de glycol. Cette composition possède un point d'inflammation compris entre 50 et 80 ~C et contient au moins 1 % en poids d'hydrocarbures aromatiques.
Beers Nicolaas Cornelis Maria
Keyzer Lucas Petrus Simon
Shell Canada Limited
Smart & Biggar
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