Claims
- 1. A composition in the form of an aqueous dispersion which contains water and the following components:
- a) from 10 to 70 parts by weight of an organopolysiloxane or a mixture of organopolysiloxanes of the formula (I) ##STR6## in which the radicals R' independently of one another, are R or .brket open-st.O--Si(R).sub.2 .brket close-st..sub.n2 OSi(R).sub.2 --R", and the radicals R", independently of one another, are R, OH or OR, at least two of all the radicals R" present being OH or OR,
- in which n1 and n2 have values such that the viscosity of said component a) has a value of from 100 to 100,000 mPa.s at 20.degree. C.,
- b) from 10 to 70 parts by weight of a cyclic organosiloxane or a mixture of cyclic organosiloxanes of the formula (II)
- [Si(R).sub.2 O].sub.x (II)
- in which x is a number from 3 to 8,
- c) from 0.1 to 10 parts by weight of a silanes of the formula (III) ##STR7## in which p is a number from 2 to 6 and q is a number form 0 to 7, w is a number from 2 to 6, in which all the racials X, independently of one another, are a radicial RO.paren open-st.CHZ--CHZ--O.paren close-st..sub.t or a radicial R or HO.paren open-st.CHZ--CHZ--O.paren close-st..sub.t, in which t is a number from 0 to 8, Z is H or CH.sub.3, and Y is X or ##STR8## d) from 0.1 to 10 parts by weight of a dispersant or a mixture of dispersants, least one cationic dispersant or nonionic dispersant being present, and, optionally,
- e) from 0 to 10 parts by weight of a silane or a mixture of silanes of the formula (IV) ##STR9## or a product which is formed from said silane or said mixture of silanes in the presence of water by hydrolysis and subsequent condensation with the elimination of water,
- in which all the radicals X, independently of one another, and Z and t have the abovementioned meanings and wherein R'" is H or R,
- with the proviso that the composition contains at least one component c) or e) which has at least one Si atom to which three or four radicals of the formula RO.paren open-st.CHZ--CHZ--O.paren close-st..sub.t or the formula HO.paren open-st.CHZ--CHZ--O.paren close-st..sub.t are connected, all the radicals R present in the components a), b), c) and e) being, independently of one another, alkyl radicials having from 1 to 4 C atoms or phenyl radicals,
- the composition containing the components a), b), c) and, if present, e) either only as such or, in addition thereto or exclusively, in the form of products which are formed by partial or complete reaction of two or more of said components with one another.
- 2. The composition as claimed in claim 1, wherein all the radicals R present in components a), b), c) and e) are methyl radicals or ethyl radicals.
- 3. The composition as claimed in claim 1, wherein the sum of the components a), b), c) and e) amounts to from 75 to 95% by weight of all the substances present in the composition, except water.
- 4. The composition as claimed in claim 1, which comprises the components a) to e) in the following relative quantitative ratios:
- a) from 40 to 70 parts by weight,
- b) from 25 to 60 parts by weight,
- c) from 0.2 to 3 parts by weight,
- d) from 0.5 to 3 parts by weight,
- e) from 0 to 10 parts by weight.
- 5. A process for treating fiber materials, which comprises applying to the fiber materials a composition as claimed in claim 1.
- 6. The process as claimed in claim 5, wherein an aqueous dispersion A and an aqueous dispersion B are prepared separately and then combined, and wherein there is applied to a fiber material a coating which contains a composition thus obtained, the dispersion A containing a component a) and a dispersant or a mixture of dispersants, the dispersion A being essentially free of components b), c) and e), and the dispersion B containing a component b), a component c), a dispersant or a mixture of dispersants and, optionally, a component e), the dispersion B being essentially free of component a), it being possible for the dispersion B to contain the components b) and c) and, if present, e), either as such or in the form of products which are formed by partial or complete reaction of two or three of said components with one another, or a mixture thereof.
- 7. The process as claimed in claim 5, wherein the fiber materials are sheet materials in the form of nonwovens, woven or knitted fabrics which consist of natural, partly synthetic or fully synthetic organic polymers.
- 8. The process as claimed in claim 5, wherein said treating comprises applying a coating to the fiber materials.
- 9. The process as claimed in claim 8, wherein, in addition to the coating containing the composition, there is also applied to the fiber materials an organopolysiloxane which contains two or more hydrogen atoms bound to one silicon atom each, said additional organopolysiloxane being applied to the fibre materials before, after or simultaneously with the coating containing the coating composition.
Priority Claims (1)
Number |
Date |
Country |
Kind |
43 30 967.4 |
Sep 1993 |
DEX |
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Parent Case Info
This application is a continuation, of application Ser. No. 08/303,906 filed Sep. 9, 1994, now abandoned.
US Referenced Citations (20)
Foreign Referenced Citations (6)
Number |
Date |
Country |
0156970 |
Oct 1985 |
EPX |
0370326 |
May 1990 |
EPX |
0515915 |
Dec 1992 |
EPX |
2459936 |
Jun 1975 |
DEX |
3035824 |
Sep 1988 |
DEX |
3730780 |
Nov 1990 |
DEX |
Non-Patent Literature Citations (2)
Entry |
Derwent Abstract, 89-094529 (DE 3730780). |
Derwent Abstract 75-44776w (DE 2459936). |
Continuations (1)
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Number |
Date |
Country |
Parent |
303906 |
Sep 1994 |
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