Low-molecular and high-molecular emulsifiers, particularly...

C - Chemistry – Metallurgy – 08 – F

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C08F 8/14 (2006.01) B01F 17/00 (2006.01) C08F 8/32 (2006.01) C08F 110/10 (2006.01) C10L 1/10 (2006.01) C10L 1/18 (2006.01) C10L 1/198 (2006.01) C10L 1/22 (2006.01) C10L 1/238 (2006.01) C10L 1/2383 (2006.01) C10L 1/2387 (2006.01) C10L 1/32 (2006.01) C10L 10/00 (2006.01) C10L 10/02 (2006.01) C10L 10/04 (2006.01) C10M 129/76 (2006.01) C10M 129/95 (2006.01) C10M 133/16 (2006.01) C10M 133/54 (2006.01) C10M 133/56 (2006.01) C10M 141/02 (2006.01) C10M 141/06 (2006.01) C10M 145/38 (2006.01) C10M 173/00 (2006.01) C1

Patent

CA 2448033

The invention relates to low-molecular and high-molecular diblock emulsifiers, particularly based on polyisobutylene, of general formulas (Ia) and (Ib), and to mixtures thereof, whereby: La represents a polyisobutylene group having a numerical average molecular weight Mn ranging from 300 to 1000; Lb represents a polyisobutylene group having a numerical average molecular weight Mn ranging from 2000 to 20000; -A- represents -O-, -N(H)- or N(R1)-; M+ represents H+, an alkali metal ion, 0.5 alkaline-earth metal ions or NH4+, whereby in NH4+, one or more H's can be substituted by alkyl radicals; R represents a linear or branched saturated hydrocarbon radical, which supports at least one substituent selected from the group consisting of OH, NH2 or NH3+ and optionally supports one or more C(O)H groups while optionally containing one or more non-adjacent -O- and/or secondary amines and/or tertiary amines and, in the NH2 or NH3+ groups, one or more H's can be substituted by alkyl radicals, and; R1 represents a linear or branched saturated hydrocarbon radical, which optionally supports one or more substituents selected from the group consisting of OH, NH2, NH3+ or C(O)H while optionally containing one or more non-adjacent -O- and/or secondary amines and/or tertiary amines and, in the NH2 or NH3+ groups, one or more H's can be substituted by alkyl radicals, and the proportion of A-R on the compound of general formula (Ib) equals at least 20 wt. %.

L'invention concerne des émulsifiants à deux blocs de masses moléculaires faibles et élevées, notamment à base de polyisobutylène, de la formule générale (Ia) et (Ib), ainsi que les mélanges de ces émulsifiants. Selon l'invention, L?a¿ est un groupe polyisobutylène de masse molaire moyenne M¿n? de 300 à 1000, et L?b¿ est un groupe polyisobutylène de masse molaire moyenne M¿n? de 2000 à 20000 ; -A- est -O-, -N(H)- ou N(R?1¿)- ; M?+¿ est H?+¿, un ion de métaux alcalins, 0,5 ions de métaux alcalins ou NH¿4??+¿, un ou plusieurs H pouvant être remplacés par des restes alkyle dans NH¿4??+¿ ; R est un reste hydrocarbure saturé, linéaire ou ramifié, portant au moins un substituant choisi dans le groupe OH, NH¿2? ou NH¿3??+¿, et éventuellement un ou plusieurs groupes C(O)H, et éventuellement un ou plusieurs O- non adjacents et/ou des amines secondaires et/ou des amines tertiaires, un ou plusieurs H pouvant être remplacés par des restes alkyle dans les groupes NH¿2?- ou NH¿3??+¿ ; et, R?1¿ est un reste hydrocarbure saturé, linéaire ou ramifié, portant éventuellement un substituant choisi dans le groupe OH, NH¿2? ou NH¿3??+¿ ou C(O)H, et éventuellement un ou plusieurs -O- non adjacents et/ou des amines secondaires et/ou des amines tertiaires, un ou plusieurs H pouvant être remplacés par des restes alkyle dans les groupes NH¿2?- ou NH¿3??+¿, et la teneur en A-R du composé de formule générale (Ib) étant d'au moins 20 % en poids.

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