C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
C08J 5/18 (2006.01) C08B 1/00 (2006.01) C08B 16/00 (2006.01) C08J 3/09 (2006.01) C08J 3/28 (2006.01) C08K 5/21 (2006.01) C08L 1/02 (2006.01) C09D 101/02 (2006.01) C09J 101/02 (2006.01) C09K 8/60 (2006.01)
Patent
CA 2715979
The invention relates to a method for producing solid materials on the basis of synthetic polymers and biopolymers (A) by: (1) the solubilisation of (A) or of (A) and an additive (B) in a non- aqueous chaotropic liquid (C), (2) contacting of the solution or dispersion obtained (AC) or (ABC) with a liquid (D1), which is miscible with (C), in which however (A) is insoluble, to produce a phase (E) containing (A), (C) and (D1) and optionally (B) and a liquid phase (F) containing (C) and (D1), (3) optional separation of (E) from (F), (4) removal of (C) from (E) with the aid of (D1), to produce a gel (G) on the basis of (A), (5) impregnation of (G) with a liquid (D2) which is miscible with (C) and (D1) and in which at least (A) is insoluble and has a higher volatility than (D1), and (6) removal of (D1) and (D2) from (G) by evaporation. The invention also relates to the use of said materials.
L'invention concerne un procédé utilisé pour produire des matériaux solides à base de polymères et de biopolymères synthétiques (A): (1) solubilisation de (A) ou de (A) et d'un additif (B) dans un liquide chaotrope exempt d'eau (C); (2) mise en contact de la solution ou dispersion obtenue (AC) ou (ABC) avec un liquide (D1) miscible avec (C), dans lequel (A) est néanmoins insoluble, ce qui permet d'obtenir une phase (E) contenant (A), (C) et (D1), ainsi qu'éventuellement (B), ainsi qu'une phase (F) contenant (C) et (D1); (3) éventuellement séparation de (E) hors de (F); (4) élimination de (C) hors de (E) au moyen de (D1), ce qui permet d'obtenir un gel (G) à base de (A); (5) imprégnation de (G) avec un liquide (D2) miscible avec (C) et (D1), dans lequel au moins (A) est toutefois insoluble, et qui présente une plus grande volatilité que (D1); et (6) éliminer (D1) et (D2) de (G) par évaporation. L'invention concerne également l'utilisation de ces matériaux.
Champ Simon
Chapman Robert
Basf Se
Robic
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