Organosilicon compounds
View Patent ↗Organosilicon compounds of the general formula I and/or II are produced by reacting silanes of the general formula III with alcohols of the general formula R′—OH, with elimination of R—OH, wherein R—OH may be continuously separated from the reaction mixture by distillation. The organosilicon compounds may be used in rubber mixtures. Compounds, such as rubbers, produced using such organosilicon compounds.
1. Organosilicon compounds of formula I and/or II
wherein
R is a methyl or ethyl group, with the proviso that R is ethyl when X is SH,
R′ is identical or different and is a C 9 -C 30 branched or unbranched monovalent alkyl or alkenyl group, aralkyl group, branched or unbranched C 2 -C 30 alkyl ether group, branched or unbranched C 2 -C 30 alkyl polyether group or R′″ 3 Si, where R′″ is C 1 -C 30 branched or unbranched alkyl or alkenyl group, aralkyl group or aryl group,
R″ is a branched or unbranched, saturated or unsaturated, aliphatic, aromatic or mixed aliphatic/aromatic divalent C 1 -C 30 hydrocarbon group, and
X is O(C═O)—R′″ where n=1 and m=1, SH where n=1 and m=1, S where n=2 and m=1-10 and mixtures thereof or S(C═O)—R′″ where n=1 and m=1, with the proviso that in formula I, when m=4 and n=2, R can not be ethyl, R′ can not be C 14 H 29 and R″ can not be —(CH 2 ) 3 — or —(CH 2 ) 4 — and with the proviso that in formula II, when m=4, n=2, R is ethyl, and R″ is —(CH 2 ) 3 —, R′ when monovalent alkyl, is C 12 -C 30 -branched or unbranched monovalent alkyl.
2. The organosilicon compounds of claim 1 of formula (I).
3. The organosilicon compounds of claim 1 of formula (II).
4. The organosilicon compounds of claim 1 , wherein R″ is CH 2 , CH 2 CH 2 , CH 2 CH 2 CH 2 , CH 2 CH 2 CH 2 CH 2 , CH(CH 3 ), CH 2 CH(CH 3 ), C(CH 3 ) 2 , CH(C 2 H 5 ), CH 2 CH 2 CH(CH 3 ), CH 2 CH(CH 3 )CH 2 or
5. A composition comprising one or more organosilicon compounds of claim 1 , which may be free, bonded or crosslinked.
6. A rubber or synthetic rubber comprising one or more organosilicon compounds of claim 1 , which may be free, bonded or crosslinked.
7. The rubber or synthetic rubber of claim 6 , wherein the organosilicon compound is bonded or crosslinked.
8. The rubber or synthetic rubber of claim 6 that comprises rubber or synthetic rubber, filler, and optionally one or more rubber auxiliary substance(s).
9. The rubber or synthetic rubber of claim 6 comprising one or more carbon black(s).
10. The rubber of claim 6 comprising one or more highly dispersed silica(s).
11. The rubber of claim 6 comprising one or more silica(s).
12. The rubber of claim 6 comprising one or more aluminum oxides or aluminum hydroxides.
13. The rubber of claim 6 comprising one or more glass fibres, glass fibre products or glass microbeads.
14. A synthetic rubber comprising the organosilicon compound of claim 1 .
15. A natural rubber comprising the organosilicon compound of claim 1 .
16. A moulding comprising the organosilicon compound of claim 1 .
17. A tire, pneumatic tire or tire tread comprising the organosilicon compound of claim 1 .
18. Cable sheathing comprising the organosilicon compound of claim 1 .
19. A hose, drive belt, conveyor belt, roll cover, shoe sole, sealant ring or damping component comprising the compound of claim 1 .
20. A method for producing a rubber or synthetic rubber mixture comprising admixing one or more organosilicon compound(s) of claim 1 with rubber or synthetic rubber, with a rubber auxiliary or with a compound to be added to a rubber mixture.
21. The method of claim 20 , wherein the amount of the organosilicon compound(s) relative to the weight of said rubber ranges from 0.1% to 20 wt %.
22. A method for promoting adhesion between an inorganic material and an organic polymer comprising contacting the organosilicon compound of claim 1 with an inorganic material and an organic polymer.
23. The method of claim 22 , wherein the inorganic material comprises glass.
24. The method of claim 22 , wherein the inorganic material comprises metal.
25. The method of claim 22 , wherein the inorganic material comprises an oxide.
26. The method of claim 22 , wherein the inorganic material comprises silica.
27. The method of claim 22 , wherein the organic polymer comprises a thermoset polymer.
28. The method of claim 22 , wherein the organic polymer comprises a thermoplastic polymer.
29. The method of claim 22 , wherein the organic polymer comprises an elastomer.
30. A method for crosslinking one or more material(s) comprising contacting one or more material(s) with the organosilicon compound of claim 1 .
31. A method for modifying the surface of a material, comprising contacting a surface with the organosilicon compound of claim 1 .
32. A process for the production of the organosilicon compound of claim 1 , comprising reacting a silane of formula III
in which R, R″, X, m and n have the above-stated meanings, with one or more alcohol(s) of formula R′—OH, in which R′ has the above-stated meaning, and eliminating R—OH.
33. The process of claim 32 , wherein eliminating R—OH comprises continuous separation of R—OH from the reaction mixture by distillation.
34. The process of claim 32 , comprising reacting the silane in the presence of a catalyst that is hydrochloric acid, sulfuric acid, phosphoric acid, formic acid, acetic acid, para-toluenesulfonic acid, sodium hydroxide solution, potassium hydroxide solution, sodium methylate or sodium ethylate.
35. The process of claim 32 , comprising reacting the silane in the presence of catalyst that is a metal compound.
36. The process of claim 32 , comprising reacting the silane at a temperature of between 20 and 200° C.
37. The process of claim 32 , comprising reacting the silane in an anhydrous, inert gas atmosphere.