C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
C08J 9/32 (2006.01) B29C 44/34 (2006.01) B29C 67/20 (2006.01) B29C 70/66 (2006.01) C08G 18/08 (2006.01) C08G 18/42 (2006.01) C08J 9/224 (2006.01) C08L 75/04 (2006.01)
Patent
CA 2342806
The present invention relates to a process for producing a dispersion of polymeric microspheres in a polyol comprising expanding 1 to 70 % by weight of polymeric beads in a polyol with a twin screw extruder to simultaneously mix and expand the beads to create a uniform dispersion of the microspheres in the polyol such that the wetting of the microspheres by the polyol is maximized.
L'invention concerne un procédé de production d'une dispersion de microsphères polymères dans un polyol, consistant à expanser 1 à 70 % en poids de perles polymères dans un polyol, au moyen d'une extrudeuse à deux vis, afin de simultanément mélanger et dilater les perles, pour créer une dispersion uniforme des microsphères dans le polyol, de manière à maximiser le mouillage des microsphères par le polyol.
Archey Rick L.
Holsinger Carl E.
Spitler Keith G.
Vescio Leslie J.
Corporation Bayer
Ip Rights Llc
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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