C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
C09D 175/04 (2006.01) B05D 3/06 (2006.01) C08F 290/06 (2006.01) C08J 7/04 (2006.01) C09D 4/00 (2006.01) C09D 4/02 (2006.01) C09D 4/06 (2006.01) C09D 175/16 (2006.01) B05D 3/04 (2006.01)
Patent
CA 2382094
The invention relates to a method for producing scratch resistant coatings. A UV hardenable coating agent contains at least one aliphatic urethane(meth)acrylate prepolymer PU with at least two double bonds per molecule or a mixture of at least one urethane(meth)acrylate prepolymer PU and at least one reactive diluent, said contents being the photochemically cross- linkable component. At least one of said coating agents is applied to the substrate to be coated. The humid coating thus obtained is hardened in an inert gas atmosphere under the influence of ultraviolet radiation.
La présente invention concerne un procédé de réalisation de revêtements antirayures, comportant les étapes suivantes: un substrat est recouvert d'au moins un agent à durcissement U.V. comprenant comme composant réticulable photochimique au moins un prépolymère uréthan(méth)acrylate aliphatique (PU) comportant au moins deux doubles liaisons par molécule, ou un mélange d'au moins un prépolymère uréthan(méth)acrylate aliphatique (PU) et d'au moins un diluant réactif; le revêtement humide ainsi obtenu est durci sous atmosphère de gaz inerte par action d'un rayonnement ultraviolet.
Jaworek Thomas
Schwalm Reinhold
Basf Aktiengesellschaft
Robic
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