 Cubic boron nitride preparation |
| AND BEST MODE The invention provides for deposition of cubic boron nitride on a substrate through ... |
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| Cubic boron nitride preparation |
| OF THE INVENTION The invention involves the deposition of CBN on a substrate through activated ... |
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| Method of producing thin, hard coating |
| An object of this invention is the provision of a hard, tenacious, anti-galling and corrosion-... |
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| Process for production of high-hardness boron nitride film |
| Proceeding from the above-mentioned background, research was performed, and as a result, it was ... |
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| Method of making mixed nitride films with at least two metals |
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| Hot filament CVD of boron nitride films |
| Therefore, it is an object of the present invention to provide a method for coating a boron nitride ... |
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| Process for depositing a layer containing boron and nitrogen |
| OF PREFERRED EMBODIMENTS The process according to the invention for depositing a layer containing ... |
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| Process for the preparation of an optical structure and optical structure obtained thereby |
| We claim: 1. A process for producing an optical structure comprising a silicon-based coating on an ... |
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| Stripping fingers for copying machine |
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| Direct positive type silver halide photosensitive material |
| OF THE INVENTION The cobalt, nickel, ruthenium and chromium metal ammine complex salts used in the ... |
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Substantive preparation material for yarns or plied yarns
| Details |
Inventors: Dumm, Heinz; Koerner, G/o/ tz; Krakenberg, Manfred; Rott, Hans; Schmidt, G/u/ nter;
Assignee: Th. Goldschmidt AG (Essen, DE)
Primary Examiner: Tungol; Maria Parrish
Assistant Examiner:
Attorney, Agent or Firm: Toren, McGeady and Stanger
Materials for substantively preparing yarns or plied yarns, especially sewing threads and preferably those of polyester, in the form of an oil/water dispersion are disclosed. The materials contain 5 to 80 weight percent of silicone oil of a viscosity of 500 to 50,000 mm.sup.2 /sec at 25.degree. C., 10 to 80 weight percent of wax with a melting point not less than 40.degree. C., 1 to 10 weight percent of fatty acids with 6 to 22 carbon atoms, 0.4 to 12 weight percent of cationic imidazolinium salts and 0 to 10 weight percent of ethoxylated fatty amines, dissolved or dispersed in water, the sum of the components having to add up to 100 weight percent. The production of this preparation is also disclosed. The inventive preparation materials have a good and uniform substantivity and bring about uniform reduction in friction over a long length of yarn and for different speeds of the running thread. They ensure little abrasion in the further processing of the yarns, especially during sewing, and at the same time, provide a high measure of antistatic effect. The breaking strength of the yarns or plied yarns is not significantly decreased. |
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DETAILED DESCRIPTION We claim: 1.
A composition for substantively preparing yarns or plied yarns comprising an oil/water dispersion, the water portion of which contains (a) from about 5 to 80 weight percent of silicone oil having a viscosity of 500 to 50,000 mm.
sup.
2 /sec at 25.
degree.
C.
, (b) from about 10 to 80 weight percent of wax with a melting point of not less than about 40.
degree.
C.
, (c) from about 1 to 10 weight percent of fatty acids having 6 to 22 carbon atoms, (d) from about 0.
4 to 12 weight percent of cationic imidazolinium salts, and (e) from about 0 to 10 weight percent of ethoxylated fatty amines, the sum of components (a) to (e) adding up to 100 weight percent.
2.
The composition of claim 1 wherein component (a) has a viscosity of from about 1,000 to 10,000 mm.
sup.
2 /sec at 25.
degree.
C.
3.
The composition of claim 1 or 2 wherein component (b) has a melting point higher than about 60.
degree.
C.
4.
The composition of claim 1 or 2 wherein the silicone oil is a methyl silicone oil.
5.
The composition of claim 1 or 2 wherein the silicone oil is a methyl silicone oil having a portion of the methyl group replaced by alkyl or phenyl groups.
6.
The composition of claim 1 or 2 wherein the silicone oil has trimethylsilyl or dimethyl hydroxysilyl groups.
7.
The composition of claim 1 or 2 wherein the amount of silicon oil is from about 50 to 85 weight percent.
8.
The composition of claim 1 or 2 wherein the amount of silicone oil is from about 70 to 80 weight percent.
9.
The composition of claim 1 or 2 wherein the amount of silicone oil is from about 5 to 20 weight percent.
10.
The composition of claim 1 or 2 wherein the amount of silicone oil is from about 8 to 12 weight percent.
11.
The composition of claim 1 or 2 wherein the wax has a melting point of more than about 60.
degree.
C.
12.
The composition of claim 1 or 2 wherein the wax has a melting point from about 50.
degree.
to 60.
degree.
C.
13.
The composition of claim 1 or 2 wherein the the fatty acid is selected from the group consisting of caproic acid, lauric acid, oleic acid, stearic acid, behenic acid, hydroxystearic acid, isotridecanoic acid
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