Two-component coating compositions containing silane...

C - Chemistry – Metallurgy – 09 – D

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C09D 175/08 (2006.01) C08G 18/10 (2006.01) C08G 18/48 (2006.01) C08G 18/80 (2006.01)

Patent

CA 2431509

The present invention relates to two-component coating compositions containing a) a polyisocyanate component, b) an isocyanate-reactive component and c) 0.1 to 20 wt.%, based on the weight of components a) and b), of a compound containing alkoxysilane groups and urea groups corresponding to the formula (I), wherein X represents identical or different organic groups which are inert to isocyanate groups below 100~C, provided that at least on of these groups is an alkoxy group, Y represents a linear or branched alkylene group containing 1 to 8 carbon atoms, R represents the residue obtained by removing the isocyanate groups from a monoisocyanate or a polyisocyanate, R1 and R2 are identical or different and represent organic groups which are inert to isocyanate gropus at a temperature of 100~C or less, R3 and R4 are identical or different and represent hydrogen or organic groups which are inert to isocyanate groups at a temperature of 100~C or less, and n has a value of 1 to6. The present invention also relates to substrates coated with these coating compositions, in particular metal substrates.

L'invention concerne des compositions de revêtement à deux composants renfermant: a) un composant polyisocyanate, b) un composant réactif vis-à-vis d'isocyanate et c) entre 0,1 et 20 %, en poids, par rapport aux composants a) et b), de composé qui renferme des groupes alcoxysilane et des groupes urée correspondant à la formule ci-après. Dans ladite formule, X représente des groupes organiques identiques ou différents inertes vis-à-vis des groupes isocyanate au-dessous de 100 ·C, à condition qu'au moins un de ces groupes soit un groupe alcoxy, Y représente un groupe alkylène linéaire ou ramifié contenant entre 1 et 8 atomes de carbone, R représente le résidu issu de l'élimination des groupes isocyanate dans un monoisocyanate ou un polyisocyanate, R¿1? et R¿2? sont identiques ou différents et représentent des groupes organiques qui sont inertes vis-à-vis des groupes isocyanate à 100 ·C ou moins, R¿3? et R¿4? sont identiques ou différents et représentent hydrogène ou des groupes organiques inertes vis-à-vis des groupes isocyanate à 100 ·C ou moins, et n a une valeur comprise entre 1 et 6. L'invention concerne également des substrats revêtus de ce type de composition, en particulier des substrats métalliques.

LandOfFree

Say what you really think

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

Rating

Two-component coating compositions containing silane... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Two-component coating compositions containing silane..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Two-component coating compositions containing silane... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1796733

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