C - Chemistry – Metallurgy – 08 – K
Patent
C - Chemistry, Metallurgy
08
K
C08K 3/26 (2006.01) C08K 5/13 (2006.01) C08K 5/42 (2006.01) C08K 5/524 (2006.01)
Patent
CA 2532963
The invention relates to a composition for the protection of a shaped article against corrosion, said composition comprising (a) a polyisobutene having a glass transition temperature of less than -20~C and surface tension of less than 40 mM/m at a temperature above the glass transition temperature of said polyisobutene, (b) a filler material and (c) an anti-oxidant composition. The anti-oxidant composition comprises a primary and/or a secondary anti-oxidant, the primary anti-oxidant being selected from the group consisting of sterically hindered phenol compounds. The invention further relates to a wrapping tape comprising said composition for the protection of a shaped article, a process for the manufacture of said wrapping tape and a process for covering a shaped article with said wrapping tape.
L'invention concerne une composition pour la protection d'un article usiné contre la corrosion, ladite composition comprenant (a) un polyisobutène présentant une température de transition vitreuse inférieure à 20 ·C et une tension de surface inférieure à 40 mM/m à une température supérieure à la température de transition vitreuse dudit polyisobutène, (b) une matière de remplissage et (c) une composition antioxydante. Ladite composition comprend un antioxydant primaire et/ou secondaire, l'antioxydant primaire étant sélectionné parmi le groupe constitué de composés de phénol contrariés stériquement. L'invention concerne également une bande d'enroulement comprenant ladite composition et destinée à protéger un article usiné, un procédé de fabrication de ladite bande d'enroulement et un processus permettant de recouvrir l'article usiné de ladite bande d'enroulement.
Frans Nooren Afdichtingssystemen B.v.
Gowling Lafleur Henderson Llp
LandOfFree
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