US 2159218 A
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Patented May 23, 1939 Frederick H. Macias-en, Calet @ity, iii" assignor to Standard i! Company, (Chicago, 111., a
corporation oi No Drawing. Application September 25, 1937,
Serial No. 165,636
This invention relates to certain new and useful improvements in waxes and the method of producing the same.
For certain uses, such as certain types of wax- 5 coated papers and in the manufacture of certain types of candles, it is highly desirable to have a paraflin wax which has an opaque ap- V pearance. In the past materials, such as stearic acid, beta naphthoi, ammonium stearate and palmitate, salicyclic acid, solid aliphatic alcohols, and other compounds, have been used in relatively large amounts in paramn waxes to render the same opaque. However the necessity of using relatively large amounts of these relatively expensive materials makes the use thereof as opacifiers undesirable.
It is the primary object of the present invention to produce an opaque paraffln wax having an improved appearance and produced by the addition of relatively small amounts of a relatively inexpensive but eflective addition agent. I have found that the addition of relatively small amounts, i. e.. from 0.5% to about 5% and preferably 0.5% to 3% of hydrogenated fats, and particularly hydrogenated vegetable oils, such as castor oil, cottonseed oil, corn oil, etc. to paraflin waxes will impart to the latter an improved, shiny, opaque appearance. Paraflln waxes hav- 3 ing melting points ranging from about 120 F.
to about 160 F. may be used although paraflin waxes having melting points ranging from about F. to about 145 F. are most commonly employed. For example, I have found that the addition of 1% of hydrogenated castor oil or hydrogenated cottonseed oil to parafiin wax having a melting point of about -135 F. will pro- 5 duce a better appearing opaque wax than is obtained by the addition of 5% of. stearic acid to the same wax.
While the use of a mixture of parafiin wax and at least 50% of hydrogenated vegetable oil has 10 been suggested in the past to produce candles of the rubric type, I know of no use of small amounts of hydrogenated vegetable oil in amounts oi not more than 5% to render paraflin 15 wax opaque.
1. An opaque wax comprising a mixture of paraflln wax and from about 0.5% to about 5% of a hydrogenated 'iat.
2. As a new article of manufacture having an opaque appearance a mixture of paraffin wax and from about 0.5% to 5% of a hydrogenatedvegetable oil.
3. An improved opaque wax comprising paraf- 25 fin wax and 0.5% to about 5% of hydrogenated castor oil.
4. An improved opaque wax comprising paraffin wax and 0.5% to about 5% of hydrogenated cottonseed oil.
monomer; H. MACLAREN.