C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
C09D 9/04 (2006.01) C11D 1/83 (2006.01) C11D 3/43 (2006.01) C11D 3/44 (2006.01) C11D 17/00 (2006.01) C11D 1/12 (2006.01) C11D 1/14 (2006.01) C11D 1/29 (2006.01) C11D 1/34 (2006.01) C11D 1/66 (2006.01) C11D 1/72 (2006.01)
Patent
CA 2196545
The invention relates to a cleaning or scouring composition in the form of an emulsion including at least one solvent fraction, comprising at least one solvent having a solvent power with respect to at least one resin, a surfactant fraction comprising at least one main non ionic surfactant, on the one hand said solvent fraction further comprising at least one co-solvent, said solvent and co-solvent being selected so that the solvent fraction is defined within the Hansen space by the partial parameter of polarity delta p and the partial parameter of hydrogen bond delta h, inside a parallepipede whose projection in the plane delta p, delta h is a rectangular surface having a length on the delta h axis of 16 (cal/cm<3>)<1/2>, that is 32,64 (J/cm<3>)<1/2>, from the point of origin 0, and a width on the delta p axis of 12 (cal/cm<3>)<1/2>, that is 24,48 (J/cm<3>)<1/2>, from the point of origin 0, and on the other hand said main non ionic surfactant is selected among alcohols, fatty acids and esters, ethoxylated or not, and whose long hydrophobic, saturated, linear, carbon chain has at least 18 carbon atoms.
L'invention concerne une composition nettoyante ou décapante, sous la forme d'une émulsion comprenant au moins une fraction solvante, comportant au moins un solvant possédant un pouvoir solvant vis-à- vis d'au moins une résine, une fraction tensioactive comprenant au moins un agent tensioactif non ionique principal, d'une part ladite fraction solvante comprenant en outre au moins un cosolvant, lesdits solvant et cosolvant étant choisis de manière que la fraction solvante est définie dans l'espace de Hansen par le paramètre partiel de polarité .delta.p et le paramètre partiel de liaison hydrogène .delta.h, à l'intérieur d'un parallélépipède dont la projection dans le plan .delta.p, .delta.h est une surface rectangulaire ayant une longueur sur l'axe .delta.h de 16 (cal/cm3)1/2, soit 32, 64 (J/cm3)1/2, à partir du point d'origine 0. et une largeur sur l'axe .delta.p de 12 (cal/cm3)1/2, soit 24,48 (J/cm3)1/2, à partir du point d'origine 0, et d'autre part ledit agent tensioactif non ionique principal est choisi parmi les alcools, acides et esters gras éthoxylés ou non éthoxylés dont la longue chaîne carbonée linéaire, saturée, hydrophobe possède au moins 18 atomes de carbone.
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
Ste Industrielle Et Commerciale Du Rhone-Sincora
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