C - Chemistry – Metallurgy – 09 – J
Patent
C - Chemistry, Metallurgy
09
J
6/221, 154/44, 1
C09J 5/02 (2006.01) B05D 3/10 (2006.01) B05D 5/10 (2006.01) C03C 17/32 (2006.01) C03C 17/34 (2006.01) C03C 23/00 (2006.01) C03C 27/04 (2006.01) C09J 175/04 (2006.01)
Patent
CA 2314924
The invention provides a method for treatment of a painted surface or a glass surface to improve adhesion of a urethane adhesive applied to the painted surface or the glass surface thereafter, comprising: contacting the painted surface or the glass surface with a pre-wipe solution comprising: from 0.5 percent to 10 percent by weight, based on weight of the solution, of a hydrocarbyl substituted aromatic sulfonic acid, wherein the hydrocarbyl moiety has 6 or more carbon atoms; and from 90.0 percent to 99.5 percent of a solvent, based on weight of the solution, wherein the acid is dissolved; and allowing the solvent to evaporate. The invention also provides a composition which may be used in this method. The composition of the invention provides a pre-wipe composition comprising: from 0.5 percent to 3.0 percent by weight of a hydrocarbyl substituted aromatic sulfonic acid based on the total weight of the composition wherein the hydrocarbyl moiety has 6 or more carbon atoms; and from 97.0 percent to 99.5 percent by weight of a solvent based on the total weight of the composition, wherein the acid is dissolved, wherein the solvent comprises an alkyl alcohol, an aromatic compound or alkyl aromatic compound.
Dans l'un des aspects, l'invention concerne un procédé pour traiter une surface peinte ou vitrée de manière à assurer une meilleure adhérence d'une colle à base d'uréthanne, qui est appliquée dans un deuxième temps. Le procédé consiste en ce qui suit: appliquer à la surface une solution avant nettoyage, ladite solution étant constituée d'un acide sulfonique aromatique substitué hydrocarbyle et d'un solvant destiné à l'acide soluble dans ledit solvant et; lasser le solvant s'évaporer. Dans un autre aspect, l'invention concerne une composition avant nettoyage qui comprend entre 0,5 et 10,0 % en poids d'acide et entre 90,0 et 99,5 % en poids de solvant pour ledit acide.
Essex Specialty Products Inc.
Smart & Biggar
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