C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 2/30 (2006.01) C08F 2/26 (2006.01) C08F 4/00 (2006.01) C08F 265/06 (2006.01) C09J 151/06 (2006.01)
Patent
CA 2395914
The invention concerns a latex consisting of polymers dispersed in a bimodal distribution, having a non-volatile matter content at 55 % and low viscosity. Said latex is obtained by emulsion polymerisation of at least a monomer in the presence of a seed of polymer-based particles with a diameter ranging between 200 and 450 nm. The invention also concerns the use of said latex in various applications such as pressure sensitive adhesives, floor bonding adhesives, tile bonding adhesives, additives for mortar, sealants, sealing joints.
L'invention décrit un latex constitué de polymères dispersées sous la forme d'une distribution bimodale, ayant un extrait sec supérieur à 55 % et une faible viscosité. Le latex de l'invention est obtenu par la polymérisation en émulsion d'au moins un monomère en présence d'une semence à base de particules de polymères de diamètre compris entre 200 et 450 nm. L'invention décrit aussi l'utilisation d'un tel latex dans diverses applications telles que les adhésifs sensibles à la pression, les adhésifs pour colle sol, les adhésifs pour colles carrelage, les adjuvants pour mortier, les mastics, les joints d'étanchéité.
Betremieux Isabelle
Loyen Karine
Meeschaert Nathalie
Nogues Pierre
Schneider Martine
Atofina
Cray Valley S.a.
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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