Closure coating

C - Chemistry – Metallurgy – 08 – J

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C08J 7/18 (2006.01) A61J 1/06 (2006.01)

Patent

CA 2202983

Elastomeric closures, such as pharmaceutical vial stoppers are coated by plasma polymerization of a lower alkane to reduce the coefficient of friction of the closure and thereby facilitate handling of the closures. Application of the coating at a low polymerization rate limits adverse effects of the coating on leak-resistance of the stopper. Stoppers (80) are subjected to a lower alkane gas in a rotatable drum (10) which may also be rocked in an arc. Helical coil (58) produces sufficient rf energy to form a low plasma gas from the lower alkane which polymerizes on the stoppers as the drum is rotated.

Des fermetures élastomères, telles que des bouchons de flacons pharmaceutiques, sont revêtues, par polymérisation du plasma, d'un alcane inférieur afin de réduire le coefficient de friction de la fermeture et de faciliter, par conséquent, la manipulation de ces fermetures. L'application du revêtement à une vitesse de polymérisation lente limite les effets défavorables du revêtement sur la résistance aux fuites du bouchon. Les bouchons (80) sont soumis à un gaz d'alcane inférieur dans un tambour rotatif (10) qui peut également osciller suivant un arc. Une bobine hélicoïdale (58) produit une énergie radioélectrique suffisante pour former un gaz de plasma faible provenant de l'alcane inférieur qui se polymérise sur les bouchons lors de la rotation du tambour.

LandOfFree

Say what you really think

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

Rating

Closure coating does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

     

Profile ID: LFCA-PAI-O-1705431

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