A hardenable two part acrylic composition

C - Chemistry – Metallurgy – 08 – F

Patent

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Details

C08F 265/06 (2006.01) A61L 24/06 (2006.01) C08F 265/04 (2006.01) C08L 33/00 (2006.01)

Patent

CA 2731344

The invention relates to a hardenable two part acrylic composition, a polymer component of the two part hardenable composition and a method of producing a polymer component of the two part composition. The hardenable two part acrylic composition comprises an acrylic polymer composition first part and an acrylic monomer composition second part. The acrylic polymer composition first part comprises a first type of acrylic polymer particles characterized in that each first type of acrylic polymer particle is formed of a network of coalesced emulsion polymerized acrylic microparticlesor is microporous. The acrylic polymer composition may comprise emulsion polymerised acrylic polymer particles of particle size between 10 and 2000nm.The invention also extends to the use of acrylic polymer particles formed of a network of coalesced emulsion polymerized acrylic microparticles as a dough time reduction agent in a hardenable two part acrylic composition.

Cette invention concerne une composition acrylique durcissable en deux parties, un composant polymère de la composition durcissable en deux parties et un procédé de production dun composant polymère de la composition en deux parties. La composition acrylique durcissable en deux parties comprend une première partie de composition polymère acrylique et une seconde partie de composition monomère acrylique. La première partie de composition polymère acrylique comprend un premier type de particules de polymère acrylique caractérisé en ce que le premier type de particule de polymère acrylique est formé dun réseau de microparticules acryliques polymérisées en émulsion coalescée. La composition polymère acrylique peut contenir des particules de polymère acrylique polymérisées en émulsion dune taille de particule entre 10 et 2 000 nm. Linvention concerne également lutilisation de particules de polymère acrylique formées dun réseau de microparticules acryliques polymérisées en émulsion coalescée en tant quagent de réduction du temps de pâte dans une composition acrylique durcissable en deux parties.

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