C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
C08J 3/09 (2006.01)
Patent
CA 2269952
Storage solutions of silsesquioxane and siloxane polymers are obtained by means of a silicon containing solvent composition. The solution has at least one polymer having a formula of [(HSiO1.5)xOy]n, (HSiO1.5)n, [(HSiO1.5)xOy(RSiO1.5)z]n, [(HSiO1.5)x(RSiO1.5)y]n or [(HSiO1.5)xOy(RSiO1.5)z]n wherein x = about 6 to about 20, y = 1 to about 3, z = about 6 to about 20, n = 1 to about 4,000, and each R is independently H, C1 to C8 alkyl or C6 to C12 aryl. The solvent has the formula of (CH3)3Si-O- [Si(CH3)2]a-Si(CH3)3, (CH3CH2)Si-O-[Si(CH3CH2)2]a-SiCH3CH2)3, R3Si-O-[SiR'2]a- SiR3, [O-Si(CH3)2]b, [O-Si(CH3CH2)2]b or [O-SiR'2]n wherein a = 0-5, b = 3-5, and each R' is independently H or C1 to C8 alkyl.
On obtient des solutions de stockage à base de polymères de silsequioxane ou siloxane au moyen d'une composition d'un solvant au silicone. La solution comporte au moins un polymère répondant à la formule [(HSiO¿1.5?)¿x?O¿y?]¿n?, (HSiO¿1.5?)¿n?, [(HSiO¿1.5?)¿x?O¿y?(RSiO¿1.5?)¿z?]¿n?, [(HSiO¿1.5?)¿x?(RSiO¿1.5?)¿y?]¿n? ou [(HSiO¿1.5?)¿x?O¿y?(RSiO¿1.5?)¿z?]¿n? dans laquelle la valeur de x est comprise entre environ 6 et environ 20, celle de y entre 1 et environ 3, celle de z entre environ 6 et environ 20 et celle de n entre 1 et environ 4000, chaque R représentant, de manière indépendante, H, un alkyle comportant de 1 à 8 atomes de carbone ou un aryle comportant de 6 à 12 atomes de carbone. Le solvant répond à la formule (CH¿3?)¿3?Si-O-[Si(CH¿3?)¿2?]¿a?-Si(CH¿3?)¿3?, (CH¿3?CH¿2?)Si-O-[Si(CH¿3?(CH¿3?CH¿2?)¿2?]¿a?-SiCH¿3?CH¿2?)¿3?, R¿3?Si-O-[SiR'¿2?]¿a?-SiR¿3?, [O-Si(CH¿3?)¿2?]¿b?, [O-Si(CH¿3?CH¿2?)¿2?]¿b? ou O-[SiR'¿2?]¿n?, dans laquelle la valeur de a est comprise entre 0 et 5, celle de b entre 3 et 5 et chaque R' représente, de manière indépendante, H ou un alkyle comportant de 1 à 8 atomes de carbone.
Davis Gary
Hacker Nigel P.
Krajewski Todd A.
Lefferts Scott
Alliedsignal Inc.
Gowling Lafleur Henderson Llp
LandOfFree
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