Curable coating composition with improved durability

C - Chemistry – Metallurgy – 09 – D

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C09D 201/00 (2006.01) C09D 7/12 (2006.01) C09D 133/00 (2006.01)

Patent

CA 2393285

The present invention provides a curable coating composition that includes a film-forming polymer, a polymeric additive having at least one bound surface protecting group, and a crosslinker that is reactive with the film-forming polymer. The polymeric additive is substantially free of groups reactive with the crosslinker and has comonomer units with aryl groups, alkyl groups having, on average, four or more carbon atoms, or combinations of the aryl and alkyl groups. When the coating composition is cured to form a cured coating layer, the concentration of the polymeric additive in the upper about 50 % of the cured coating layer thickness is at least about 10 % higher than the concentration of the polymeric additive in the rest of the cured coating layer.

La présente invention concerne une composition de revêtement durcissable comprenant un polymère filmogène, un additif polymérique renfermant au moins un groupe protecteur de surface, ainsi qu'un agent de réticulation réagissant avec le polymère filmogène. L'additif polymérique est sensiblement dépourvu de groupes réagissant avec l'agent de réticulation, et comprend des unités comonomériques avec des groupes aryle, des groupes alkyle possédant, en moyenne, au moins quatre atomes de carbone, ou des combinaisons de groupes aryle et alkyle. Lorsque cette composition de revêtement est durcie et forme une couche de revêtement durcie, la concentration de l'additif polymérique dans la partie supérieure, soit environ 50 %, de l'épaisseur de la couche de revêtement durcie est supérieure d'au moins 10 % à la concentration de cet additif polymérique dans le reste de ladite couche de revêtement durcie.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Curable coating composition with improved durability does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Curable coating composition with improved durability, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Curable coating composition with improved durability will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1436544

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.