US1169783A - Finish-remover. - Google Patents

Description

i TA a 1::

CARLETON ELLIS, OF MONTCLAIR, NEW JERSEY, ASSIGNOR TO CHADELOID (.iHEMICAL COMPANY, A CORPORATION OF WEST VIRGINIA.

r mrsn nniuovna Specificationof Letters Patent.

No Drawing. Application filed February 3, 1912, Serial No. 675,215. Renewed October 15, 1915." Serial To all whomz't may concern:

Be it known that I, CARLETON ELLIS, a citizen of the United States, and resident of Montclair, county of Essex, and State-of New Jersey, have made certain new and useful Inventions Relating to Finish-Removers, of which the following is a specification.

This invention relates especially to finish removers for the removal of paint, varnish or similar finish in which the inflammability of' the compositions is completely or considerably suppressed as by the incorporation of chlorinated solvents, suitable heavy solvent material such as benzyl alcohol being used in considerable proportion if desired. 5'

Benzyl alcohol and many other similarly high boiling point benzyl derivative finish solvent materials, such as benzyl acetate, carbolic benzyl ester, cresylic benzyl ester, benzyl chlorid, benzaldehyde, and so forth, having solvent action on finish, may be advantageously used in removers in which it is desirable to prevent or suppress inflammability. Such benzyl derivative finish solvent material may be used in the remover to as great an extent as 40 to 60 per cent. or more when desired and give removers free from undesirably inflammable or explosive vapors when combined with suitable high boiling point solvents or when carbon-tetrachlorid or other suitable inflammability suppressing chlorinated material is used. Suitable high boiling point solvent material for use in this connection may comprise phthalic methyl ester, phthalic ethyl ester, dichlornaphthalene, dichlorhydrin and solvent naphtha, preferably of the heavier grades, especially when fractionated. Solvent naphtha which is the third distillate from coal tar as usually prepared has a specific gravity of about .875 and a flashpoint of about 80 F. and consists largely of xylol,

cumol and mesitylene, about 90% distilling .off at a temperature of 160 C. Other penetrating solvents preferably having high flashpoint may be used, such for example, as petroleum naphtha free from kerosene and having a fiashpoint of 105 F. or so. The loosening solvent incorporated should be preferably the alcohols and the other loosening finish solvents having a relatively high flashpoint and being substantially water immiscible in character so as to be relatively free from water which minimizes I hydrolytic decomposition in the case of incorporated chlorinated solvents. Besides benzyl alcohol, allyl and other finish solvent alcohols are useful in this connection and of course ethyl alcohol may be used in some cases, preferably in relatively small amounts where the best inflammability suppressing results are desired. An illustrative remover of this character may comprise 30 parts of benzyl alcohol, 25 parts of benzyl acetate, 40 parts of coal tar solvent naphtha,

15 parts of carbon-tetrachlorid, 5 parts of hard parafiin Wax. Another illustrative composition may comprise mixed benzyl de-.

rivative finish solvent materials, such as 30 parts of benzyl alcohol, 25 parts of benzyl acetate or of benzaldehyde, 40 parts of solvent naphtha, 5 parts of cresylic orcarbolic acid, 15 parts of carbon-tetrachlorid and 5' parts of hard paraiiin wax.

Another illustrative remover may comprise 10 parts of phthalic methyl ester, 35 parts of fractionated heaviest solvent coal tar naphtha, 30 parts of benzyl alcohol and 25 parts of benzyl acetate.

Another illustrative composition may comprise 30 parts of cresylic benzyl ester,

15 parts of phthalicmethyl ester, 20 parts benzyl rious classes of work and-2 to 5 per cent. or

more of various hard waxes or waxy bodies may also be incorporated if desired; pyroxylin and nitrated -or acetylated starches or gums may also be used as thickeners, preferably in connection with some wax.

' Another illustrative composition may comprise 40 parts of benzyl alcohol, 40 parts of solvent naphtha and 5 parts of parafiin wax.

Another comprise l parts of benzyl alcohol, 40 parts of solvent naphtha, 10 parts of carbolic or cresylic acid and parts of parafiin wax.

Another illustrative composition may comprise 40 parts of benzyl alcohol, 25 parts of solvent naphtha, 15 parts of pine oil, 5 to parts of carbon-tetrachlorid and 5 parts of paraffin Wax.

Another illustrative composition may comprise 40 parts of solvent naphtha, parts of cresylic acid, parts of pine oil or of wood tar oil which may be deodorized by reducing heat treatment with hydrogen and 5 parts of paraflin wax.

Another illustrative composition may comprise 50 parts of turpentine, 20 parts of car bolic acid with or without parts of benzyl alcohol and 5 parts of paraffin or ceresin.

' Another illustrative composition may comprise ethyl alcohol 30 parts, benzyl alcohol 30 parts, carbon-tetrachlorid 25 parts, nitrostarch 3 parts and parafiin wax 3 parts.

Another illustrative composition may comprise ethyl or grain alcohol 40 parts, carbontetrachlorid 40 parts, acetylated starch or gum 5 parts and ceresin Wax 5 parts.

Another illustrative composition may comprise ethyl alcohol 12 parts, benzyl alcohol 25 parts, solvent naphtha 12 parts, pine oil 12 parts, carbon-tetrachlorid 15 parts and parafiin 5 parts.

Another-illustrative composition may comprise ethyl alcohol 45 parts, carbon-tetrachlorid 30 parts and ceresin wax 5 parts.

Another illustrative composition may comprise ethyl alcohol 30 parts, -carbon-tetrachlorid 20 parts, trichlorethane 30 parts, nitro-gum, such as nitrated .gum arabic, nitrated gum tragacanth or other vegetable and resinous gums or nitrated starch 3 parts and paraifin 3 parts.

Another illustrative composition may comprise ethyl alcohol 30 parts, dichlorethylene 30 parts, pyroxylin 3parts and paraffin wax 3 parts.

- l The ethyl or grain alcohol referred to in the foregoing seven formulas is preferably dehydrated as by drying commercial grain alcohol over quicklime for several days and then decanting the dehydrated alcohol from the lime. If desired also suitable antacid material may be incorporated with the alcohol such as 4 ounces of finely powdered benzoate of soda and 4 ounces or so of carbolate T85 of soda for each gallon and this modified illustrative composition may.

alcohol stock may be used in the foregoing formulas.

Another desirable illustrative composition may comprise 50 parts of solvent naphtha, 25 parts of carbon-tetrachlorid, 20 parts of amyl alcohol, 5 parts of amyl acetate and 4 to 5 parts of parafiin or ceresin wax.

Another illustrative composition may comprise 25 parts of solvent naphtha, 20 parts of petroleum naphtha of high flash-point, 20 parts of carbon-tetrachlorid, 35 parts of allyl alcohol distilled above degrees C. and 3 to 5 parts of paraffin or ceresin wax.

-Another desirable composition may comprise 50 parts of solvent naphtha, 5 to 25 parts of carbon-tetrachlorid, 25 parts of cresol or creosote and 5 parts of paraflin.

This application contains subject-matter taken from applicants copending cases 474,390, filed January 27, 1909, and 653,773, filed October 10, 1911, in connection with a number of illustrative ingredients, formulas, proportions and processes to the details of which disclosure the invention is not of course to be limited.

What is claimed is: I

1. The relatively non-inflammable finish remover comprising approximately 30 parts of benzyl alcohol, 25 parts of benzyl acetate, 5 parts of cresylic acid, 40 parts of fractionated coal tar solvent naphtha of high boiling point, 15 points of carbon-tetrachlorid and 5 parts of hard parafiin Wax.

2. The relatively non-inflammable finish remover comprising approximately 30 parts of benzyl alcohol, 25 parts of benzyl derivative finish solvent material, 5 parts of phenol, 4:0 parts of solvent naphtha, 15 parts of chlorinated inflammability suppressing solvent material and incorporated wax.

3. The finish remover containing benzyl alcohol, benzyl derivative finish solvent material and a substantially equal amount of penetrating finish solvent material, including chlorinated solvent material and incorporated Waxy stiffening material.

4. The finish remover containing benzyl derivative finish solvent material, phenol and penetrating solvent material, including a chlorinated solvent.

5. The finish remover of relatively high boiling point and slight inflammability comprising considerable proportions of benzyl derivative finish solvent material, including benzyl alcohol, phenol and penetrating finish solvent material.

6. The finish remover of relatively high boiling point and slight inflammability comprising 40 per cent. or more of high boiling point benzyl derivative finish solvent material and a substantially equal amount of penetrating finish solvent material including chlorinated solvent and incorporated waxy stiffening material.

'7. The finish solvent containing 40% or meeae v 7 more of benzyl derivative finish solvent meing not less than 40% of henz'yl fierivetive teriel including benzyl alcohol and a; subfinish solvent materiel includlinglbenzyl eleostantial proportion of high boiling point, hol and incorporated stifienin materiel. penetrating finish solvent material including I CARLET N EELIS; 5 chlorinated solvent material. Witnesses: 8. The finish remover having a flash point JESSIE 1B. KAY, of not less than 100 degrees F. and compris- HARRY L, DUNCAN.