C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
C08J 3/14 (2006.01) C08F 20/06 (2006.01) C08F 20/56 (2006.01) C08F 212/32 (2006.01) C08J 3/02 (2006.01) C08J 3/24 (2006.01)
Patent
CA 2628836
There are provided internally cross-linked, stable polymeric materials, in the form of substantially spherical particles, each particle consisting essentially of a single macromolecule. They have the unusual property of being soluble or dispersible in a liquid medium without significantly increasing the viscosity of the medium, rendering them potentially useful in imaging applications such as ink jet printers. They can be prepared by dissolving polymeric material in a solvent system to form a solution of the polymeric material at a concentration therein of less than the critical concentration for the polymer, causing the polymeric material to contract into an approximately spheroidal conformation in solution, cross-linking the polymeric material in solution in said spheroidal conformation so assumed, and recovering stable, cross-linked approximately spheroidal polymeric particles from the solution.
Divulgation de matières polymères stables, réticulées intérieurement, sous forme de particules quasiment sphériques, chaque particule étant constituée essentiellement d'une seule macromolécule. Elles ont la propriété inhabituelle d'être soluble ou dispersable dans un milieu liquide sans en accroître de manière significative la viscosité, les rendant ainsi potentiellement utiles pour des applications d'imagerie comme des imprimantes à jet d'encre. Elles peuvent être préparées en dissolvant la matière polymère dans un système de solvant pour former une solution de la matière polymère à une concentration inférieure à la concentration critique pour le polymère, provoquant une contraction de la matière polymère en particules ayant une conformation quasiment sphérique en solution, en réticulant la matière polymère en solution dans ladite conformation sphérique et en récupérant les particules de polymère réticulé approximativement sphériques de la solution.
G-Nano Llc
Ridout & Maybee Llp
LandOfFree
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