Coating compound, process for making it and its use,...

C - Chemistry – Metallurgy – 09 – D

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C09D 167/00 (2006.01) C09D 7/12 (2006.01) C09D 133/00 (2006.01) C09D 133/14 (2006.01) C09D 163/00 (2006.01) C08L 33/06 (2006.01) C08L 91/06 (2006.01)

Patent

CA 2050914

The present invention relates to coating compositions comprising a hydroxyl-containing, modified or unmodified polyester and/or a hydroxyl-containing epoxy resin and/or a hydroxyl-containing acrylate copolymer as well as a crosslinking agent reactive toward hydroxyl groups and a lubricant, wherein a wax paste D is used as lubricant, which paste comprises d1) 3 to 30% by weight of one or more polyolefin waxes and/or substituted polyolefin waxes d2) 0 to 25% by weight of one or more melamine-formaldehyde resins d3) 5 to 40% by weight of one or more acrylate resins having a hydroxyl value of 10 to 150 mg of KOH/g and a number average molecular weight of 2000 to 7000, and d4) 10 to 80% by weight of one or more organic solvents, the amounts by weight of the components d1 to d4 in each case totalling 100% by weight. The invention furthermore relates to a process for the preparation of these coating compositions and to their use, in particular for exterior coating of deep-drawn cans.

La présente invention porte sur des compositions de revêtement renfermant un polyester hydroxylé, modifié ou non, et (ou) une résine époxyde hydroxylée et (ou) un copolymère d'acrylate hydroxylé, ainsi qu'un agent de réticulation réactif vis-à-vis des groupes hydroxyle, et un lubrifiant. Une pâte cireuse D sert comme lubrifiant, ladite pâte renfermant : d1) de 3 à 30 % en poids d'une ou de plusieurs cires polyoléfiniques et (ou) de cires polyoléfiniques avec substitution; d2) de 0 à 25 % en poids d'une ou de plusieurs résines de mélamine-formaldéhyde; d3) de 5 à 40 % en poids d'une ou de plusieurs résines d'acrylate, possédant un indice d'hydroxyle de 10 à 150 mg de KOH/g, et une masse molaire moyenne de 2000 à 7000; d4) 10 à 80 % en poids d'un ou de plusieurs solvants organiques. Les montants en poids des constituants d1 à d4 totalisent dans tous les cas 100 % en poids. L'invention porte également sur un procédé pour la préparation de ces compositions de revêtement et sur leur emploi, notamment pour le revêtement extérieur de boîtes embouties.

LandOfFree

Say what you really think

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

Rating

Coating compound, process for making it and its use,... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Coating compound, process for making it and its use,..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coating compound, process for making it and its use,... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-2005941

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