Improved kaolin composition for use in electrodeposition paints

C - Chemistry – Metallurgy – 09 – C

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C09C 1/42 (2006.01) C09D 5/44 (2006.01) C09D 17/00 (2006.01)

Patent

CA 2291666

Disclosed are kaolin compositions of at least one hydrous kaolin characterized by a particle size distribution where 98 % of the particles are less than about 2 µ, 90 % are less than about 0.5 µ and the median particle size is less than about 0.3 µ. Also disclosed is a process which involves the steps: (i) preparing an aqueous slurry of at least one hydrous kaolin; (ii) separating the particles from said slurry so that the particle size distribution is such that 98 % of the particles are less than about 2 µ, 90 % are less than about 0.5 µ and a median particle size is less than about 0.3 µ; and (iii) drying said separated particles. Pigment pastes and electrodeposition paints containing said compositions as well as cationic electrodeposition of said paint on a substrate and the article of manufacture prepared thereby are disclosed.

L'invention concerne des compositions de kaolin contenant au moins un kaolin hydraté caractérisé par la répartition suivante de la taille de ses particules: 98 % des particules sont inférieures à environ 2µ, 90 % sont inférieures à environ 0,5µ et la taille moyenne des particules est inférieure à environ 0,3µ. L'invention se rapporte également à un processus comportant les étapes suivantes consistant à (i) préparer une suspension aqueuse contenant au moins un kaolin hydraté; (ii) séparer les particules de ladite suspension de manière que la répartition de la taille des particules soit telle que 98 % des particules soient inférieures à environ 2µ, 90 % soient inférieures à environ 0,5µ et que la taille moyenne des particules soit inférieure à environ 0,3µ; et (iii) sécher lesdites particules séparées. L'invention concerne enfin des pigments en pâte et des peintures pour électrodéposition contenant lesdites compositions; l'électrodéposition cationique de ladite peinture sur un substrat; et le produit ainsi préparé.

LandOfFree

Say what you really think

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

Rating

Improved kaolin composition for use in electrodeposition paints does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Improved kaolin composition for use in electrodeposition paints, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Improved kaolin composition for use in electrodeposition paints will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1750392

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