Process for forming solid pressure sensitive adhesive...

C - Chemistry – Metallurgy – 08 – F

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C08F 220/18 (2006.01) C09J 133/02 (2006.01) C09J 133/06 (2006.01) C09J 133/08 (2006.01)

Patent

CA 2411504

In forming pressure sensitive adhesive microspheres by copolymerizing a non- ionic monomer of an alkyl acrylate or alkyl methacrylate ester of a non- tertiary alcohol and an ionic monomer copolymerizable with said non-ionic monomer, non-free radically polymerizable acid is present during the polymerization to promote formation of solid rather than hollow microspheres and to reduce residual unconverted ionic monomer. These microspheres exhibit reduced adhesive transfer in downstream use as a repositionable pressure sensitive adhesive. A water soluble initiator is optionally added to the polymerization mixture after achieving about 90 % conversion of the non-ionic monomer to further reduce residual unconverted ionic monomer.

Lorsque l'on forme des microsphères auto-adhésives par copolymérisation d'un monomère non ionique d'un alkyl acrylate ou alkyl méthacrylate ester d'un alcool non tertiaire et d'un monomère ionique copolymérisable avec ledit monomère non ionique, on est en présence pendant la polymérisation d'un acide non libre polymérisable par polymérisation radicalaire qui favorise la formation de microsphères pleines et réduit le monomère ionique non transformé résiduel. En tant qu'agent auto-adhésif repositionnable, ces microsphères se caractérisent par un transfert réduit favorisant leur utilisation subséquente. On peut éventuellement ajouter un initiateur hydrosoluble au mélange de polymérisation après transformation du monomère non ionique à environ 90 % pour réduire encore le monomère ionique non transformé résiduel.

LandOfFree

Say what you really think

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

Rating

Process for forming solid pressure sensitive adhesive... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for forming solid pressure sensitive adhesive..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for forming solid pressure sensitive adhesive... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1546270

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