Patent DE-102007055506-A1 (DE)
Title: Producing organosilicon compounds for use, e.g. in making silicones for textile coating, involves reacting functional organosiloxane with water to form a dimer or oligomer and then replacing functional groups
Inventor: CHROBACZEK HARALD
IPC: C08G77/06
Filed: 2007-11-21
Abstract: A method for the production of silicone-containing products involves reacting organosil(ox)anes containing amino, epoxide or (meth)acrylate groups (FG) with water to form a dimer or oligomer and then replacing at least some of these groups with other groups such as vinyl, optionally functionalised alkyl or a wide range of functional groups including different FG groups as above. A method for the production of silicon-containing products by (i) reacting silane(s) of formula (I) with water or mixtures of (I) and compounds of formula (Ia) with water, using 0.5-1.5 mols water per mol silane or silane mixture, to give dimers and/or oligomers with 2-200 (preferably 2-15) silicon atoms per molecule (optionally by reacting two silanes (I) to a dimer or oligomer and then reacting this with water as above), and (ii) replacing at least some of the R 18>groups with R 2>or with different R 18>groups. X : Si or Ti; R 15>R, -P(O)(OH)-O-P(O)(OR) 2or preferably isopropyl; R : phenyl or 1-18C alkyl, preferably methyl or ethyl; R 1>R or OR; R 18>-U-NH 2(R 18>a), -U-NH-(CH 2) 2NH 2(b), -U-NH-(CH 2) 2-NH-(CH 2) 2-NH 2(c), -U-O-glycidyl (d), -U-(3,4-epoxycyclohexyl) (e), -CH 2OCO-C(R 3>)=CH 2(f), -CH 2NH-cyclohexyl (g), -CH 2NH-phenyl (h) or -U-OCO-C(R 3>)=CH 2(i); U : 1-4C alkylene; R 3>H or methyl; R 2>vinyl, 1-18C alkyl (optionally substituted with optionally quaternised amino, amido, mercapto, epoxide, phosphono, hydroxyl or fluorine), or a group of formula (II)-(VII), (X), (XI), (XIa), (XII)-(XX), (XVIIIa), (XXa), (XXb) or (XXc); in (II), both R 5>-COC(R 3>)=CH 2or one is H and the other is -COC(R 3>)=CH 2; p : 0, 1 or 2; R 4>1-4C hydrocarbylene; R 8>H, methyl, ethyl or hydroxyethyl; R 9>H or -COOR 8>; R 14>H or 1-18C alkyl; in (XVII) and (XIX), the units -(CH 2CH 2O)- and -(CHR 3>CHR 3>O)- : may be distributed in any way in the chain; k, l : 1-22; (k+l) : 3-25; f : 0 or 1; R 16>H, -(CO) fCHR-CH 2OH or -(CO) f-CHR-CH 2-OCOCH=CH 2; A : a direct bond or a group of formula -CH 2-C(R 12>)(Q)-CH 2O-; Q : -CH 2O(CHR 3>CHR 3>O) sR 17>; u, v, s : values such that (XVII) has an equivalent weight of 100-5000, where one or two of these indices may be zero; R 12>H or ethyl; R 17>R, -R 4>-NH 2or -CH 2CH(CH 3)NHCH 2CH(OH)CH 2O-R 4>-Si(OR) 2(R 1>); M : OR, NR 2, N-morpholinyl or -Si(CH 3)[OSi(CH 3) 3] 2; RF : 5-23C perfluoroalkyl; R 10>-(CH 2) 2N(CH 2) 2-, -CH 2-Ph-CH 2-, -Ph-CH 2-Ph-, a divalent group of formula (XXI)-(XXIVa), (XXVI) or (XXIX)-(XXXI); R 13>H, isopropyl or isobutyl; K : 2-18C alkylene; R 11>-(CH 2) d-; d : 1-6; and z : 8-500, preferably 8-20. All non-amide nitrogen atoms in these formulae may be quaternised. An independent claim is included for a method for the production of polysiloxanes by reacting (I) or a mixture of (I) and (Ia) with water as above, reacting the product with organosiloxane(s) of formula (VIII) and then replacing at least some of the R 18>groups by R 2>or by different R 18>groups. R 7>(R) 2Si-O-[Si(R)(R 6>)O] x-Si(R) 2R 7>(VIII) R 6>=R or -[O-Si(R) 2] y-Si(R) 2R 7>; x=0-1500, preferably 10-1500; y=0-500; and R 7>=R, OH or OR (at least one R 7>, preferably two are OH in formula (VIII). [Image] [Image] [Image] [Image] [Image] [Image] [Image] [Image] [Image].