USRE13257E - of elberfeld - Google Patents
of elberfeld Download PDFInfo
- Publication number
- USRE13257E USRE13257E US RE13257 E USRE13257 E US RE13257E
- Authority
- US
- United States
- Prior art keywords
- paul
- brown
- parts
- elberfeld
- vat
- Prior art date
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- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 20
- 235000011121 sodium hydroxide Nutrition 0.000 description 8
- 239000000984 vat dye Substances 0.000 description 8
- 229920000742 Cotton Polymers 0.000 description 4
- LQNUZADURLCDLV-UHFFFAOYSA-N Nitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC=C1 LQNUZADURLCDLV-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 4
- KHUFHLFHOQVFGB-UHFFFAOYSA-N 1-aminoanthracene-9,10-dione Chemical compound O=C1C2=CC=CC=C2C(=O)C2=C1C=CC=C2N KHUFHLFHOQVFGB-UHFFFAOYSA-N 0.000 description 2
- 229940040526 Anhydrous Sodium Acetate Drugs 0.000 description 2
- XNPJFBQDAXTPJA-UHFFFAOYSA-N S(O)(O)(=O)=O.S(=O)(O)S(=O)O Chemical compound S(O)(O)(=O)=O.S(=O)(O)S(=O)O XNPJFBQDAXTPJA-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 150000001454 anthracenes Chemical class 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000000975 dye Substances 0.000 description 2
- 238000004043 dyeing Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- VMHLLURERBWHNL-UHFFFAOYSA-M sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
Definitions
- Our present invention relates to the manufacture and production of'a' new Vat dye of the anthracene series.
- the new product is after be-ingdried and pulverized a brown-black powder soluble in cold concentrated sulfuric acid with a brown color. It yields on treatment with hydrosulfi'te and caustic-soda lye a Vat suitable for dyeing cotton fast brown shades.
Description
UNITED srATEs PAUL THOMASGHEW SKI AN D HEINRICH RAEDER, F VOHWINKEL, AND WALTER MIEG PATENT oFFr oE.
AND PAUL FISCHER, OF ELBERFELD, GERMANY, ASSIGNORSTO FARBENFABRIKEN VORM. FRIEDR. BAYER & CO.,.OF ELIBERFELD, GERMANY, A CORPORATION OF GERMANY.
Bnown VAT DYE.
Specification of Reissued Letters Patent. Reisguefl Jane 13, 1 911, No Drawing. Original application filed February 12, 1910, Serial No. 543,493. Divided and application Y filed Apri1v21, 1910, Serial No. 556,655. Original No. 971,225, dated September 27, 1910. Application for reissue filed February 20, 1911. Serial No. 609,848, I
To all whom it may concern:
Be it known that we, PAUL TrroMAsoHEw- SKI and HEINRICH RAEDEB, residing at Vohwinkel, and \VALTER Mme and PAUL Fisonnn, residing at Elberfeld, Kingdom of Prussia, Germany, citizens of the German Empire, have invented new and useful Improvements in Brown Vat Dyes, of which- Y the following is a specification. I
' Our present invention relates to the manufacture and production of'a' new Vat dye of the anthracene series. The new process for its preparation consists in condensing l-amino- 4-benzoylalninoanthraquinone with sl-benzoylamino-5-chlo roanthraquinone and treatingthe resulting compound with concen= tra'ted sulfuric. acid. i
-The new product is after be-ingdried and pulverized a brown-black powder soluble in cold concentrated sulfuric acid with a brown color. It yields on treatment with hydrosulfi'te and caustic-soda lye a Vat suitable for dyeing cotton fast brown shades.
In carrying out the new process practically we can proceedflas follows, the parts. being by Weight: A mixture of 10 parts of l-monobenzoylamino l-aminoanth-raquinone (obtained by-reducing l-benz'oylaminolnitroanthraquinone) 10.6 parts of l-benzoylamino-5-chloroanthraquinone, 0.1 part of CuCO 5 parts of anhydrous sodium acetate and 100 parts of nitrobenzene is heatedto boiling for about 3 hours. The resulting product is precipitated from the melt with ,toluene. After cooling the dye is filtered ofi', washed with water andalcohol' and dissolved in 10 parts of concentrated sulfuric which dyestufi is, after being'dried and pul-.
verized, a brown-black powder, which is soluble in cold concentrated sulfuric acid hydrosulfite and caustic soda lye, which-vat dyes cotton brown shades, substantially as described.
In testimony whereof we have hereunto set ourhands in the presence of two subscribing witnesses.
PAUL THOMASGHEWSKI. [n 8.] HEINRICH RAEDER. a 5. WALTER MIEG. [L- 5. PAUL FISCHER. m 8.]
Witnesses CHAs. J. WRIGHT, 1 ALFRED HENKEL.
with a brown color yielding a vat with
Family
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