USRE10879E - Otto p - Google Patents
Otto p Download PDFInfo
- Publication number
- USRE10879E USRE10879E US RE10879 E USRE10879 E US RE10879E
- Authority
- US
- United States
- Prior art keywords
- solvent
- otto
- pyroxyline
- alcohol
- mixture
- Prior art date
Links
- 239000002904 solvent Substances 0.000 description 10
- QTBSBXVTEAMEQO-UHFFFAOYSA-N acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- FJWGYAHXMCUOOM-QHOUIDNNSA-N [(2S,3R,4S,5R,6R)-2-[(2R,3R,4S,5R,6S)-4,5-dinitrooxy-2-(nitrooxymethyl)-6-[(2R,3R,4S,5R,6S)-4,5,6-trinitrooxy-2-(nitrooxymethyl)oxan-3-yl]oxyoxan-3-yl]oxy-3,5-dinitrooxy-6-(nitrooxymethyl)oxan-4-yl] nitrate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O)O[C@H]1[C@@H]([C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@@H](CO[N+]([O-])=O)O1)O[N+]([O-])=O)CO[N+](=O)[O-])[C@@H]1[C@@H](CO[N+]([O-])=O)O[C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O FJWGYAHXMCUOOM-QHOUIDNNSA-N 0.000 description 5
- 229920001220 nitrocellulos Polymers 0.000 description 5
- 229910052801 chlorine Inorganic materials 0.000 description 4
- 239000000460 chlorine Substances 0.000 description 4
- ZAMOUSCENKQFHK-UHFFFAOYSA-N chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 125000000740 n-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 3
- FOCAUTSVDIKZOP-UHFFFAOYSA-M chloroacetate Chemical class [O-]C(=O)CCl FOCAUTSVDIKZOP-UHFFFAOYSA-M 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- DSSYKIVIOFKYAU-UHFFFAOYSA-N Camphor Chemical compound C1CC2(C)C(=O)CC1C2(C)C DSSYKIVIOFKYAU-UHFFFAOYSA-N 0.000 description 1
- 229960000846 Camphor Drugs 0.000 description 1
- 241000723346 Cinnamomum camphora Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229930007890 camphor Natural products 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Definitions
- the object of my invention is to produce a solvent which will act upon pyroxyliue directly without the presence of camphor and wit-bout the application of heat and pressure; and [have discovered that the liquid obtained by the action of free chlorine upon a mixture of amylie alcohol and acetic acid accomplishes this object.
- the product obtained by the above opera.- tion is a powerful direct solvent of pyroxyline, and may be substituted for all other solvents now in use, as it dissolves the pyroxyliue rapidly without heat; and solutions of any consistency, from a thin liquid for use as a varnish or lacquer up to a stiff plastic mass suit able for molding or working into any desired form may be readily formed by simply adding the pyroxyline to the solvent and agitating or give the best results; but any proportions up" to about one part of acetic acid to thirtytwo parts of amylie alcohol may be employed with varying degrees of ellicacy.
- Thesolventfor pyroityline herein described composed of a mixture of chloride and the chloracetates of amyl, substantially as specified.
Description
UNITED STATES mm P AMEND,
NEW roan, N; r.
SOLVENT FOR PYROXYLlNE.
SPECIFICATION forming part of Reissued Letters Patent No. 10.879, dated November 88 Original No. 371,02], dated Oatoher 4, 1887. Application for reissue filed October 15, 1887. Serial No. 252,457.
To all whom it may concern:
Be it known that I, OTTo P. AMEXD, a citizen ofthe United States, residing at New York, in the county and State of New York, have-iu vented certain new and useful Improvements in Solvents for Pyroxyline or Nitro-Oellulose and the Process of Preparing the Same, of whichthc following is a specification.
In the processes of manufacture of pyroxyline now in use it is customary to effect its solution by means of camplior, together with some lnenstruumsuch as alcohol; and it is also necessary to use heat and pressure to develop the sol vent p ropertics of these combined agents.
The object of my invention is to produce a solvent which will act upon pyroxyliue directly without the presence of camphor and wit-bout the application of heat and pressure; and [have discovered that the liquid obtained by the action of free chlorine upon a mixture of amylie alcohol and acetic acid accomplishes this object. v
To prepare this solvent I prefer to take a mixture of eight parts, by measure, of amylic alcohol and one part ofacetic acid, and to treat ,7
these with free chlorine, and then remove the excess of chlorine by washing and filtering. The result of the operation is a mixture of ehloracetates of'amyl, which are solvents of pyroxyline. Therearealsosome by-produets; but as they do not interfere with the solvent action of the chloracetates of amyl it is not necessary to separate them, and the liquid may be used at'once upon the removal of the excess of chlorine, as above described.
The product obtained by the above opera.- tion is a powerful direct solvent of pyroxyline, and may be substituted for all other solvents now in use, as it dissolves the pyroxyliue rapidly without heat; and solutions of any consistency, from a thin liquid for use as a varnish or lacquer up to a stiff plastic mass suit able for molding or working into any desired form may be readily formed by simply adding the pyroxyline to the solvent and agitating or give the best results; but any proportions up" to about one part of acetic acid to thirtytwo parts of amylie alcohol may be employed with varying degrees of ellicacy.
\Vhnt I claim, and desire to secure by Letters Patent, is
Thesolventfor pyroityline herein described, composed of a mixture of chloride and the chloracetates of amyl, substantially as specified.
OTTO l.
AMEND.
Witnesses: 7
WM; H. WoonnUL JOHN P. ARNETL.
Family
ID=
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