US1848686A

US1848686A - Edward j

Info

Publication number: US1848686A
Authority: US
Publication date: 1932-03-08
Anticipated expiration: 1949-03-08

Description

Patented Mar. 8, 1932 PATENT OFFICE EDWARD I. ARNOLD, OF NEW BBUNSWIC K, NEW JERSEY, .A SSIGNOR TO E. I. DU POINT DE NEMOUBS & COMPANY, OF WILMINGTON, DELAWARE, A CORPORATION OF DELA- WARE No Drawing.

This invention relates to wall paper and to products of that kind used for similar purposes.

Wall paper as at present manufactured,

,5 particularly in the lighter shades which are so desirable, is easily stained by finger marks, grease, Water, and other things the presence of which cannot be avoided. The result is that'wall paper, for instance around light switches, becomes stained. No method is known by which these stains can be successfully removed from the paper.

It has been proposed to overcome the disadvantages inherent in the older types of wall paper to coat the wall paper with Varnish or with a lacquer. These proposals, however, were unsatisfactory because the coatings did not offer suflicient resistance to grease, ink, and other stains, because they gave the paper 29 a shiny, varnished appearance, and because paper so coated, when coated with the starch paste adhesive-preparatory to hanging, curls up in a way which makes hanging practically impossible.

it is an object of this invention to prepare wall paper which is water resistant and which can be Washed free of stains, even of grease and ink, without leaving a noticeable trace behind. It is another object of this invention to prepare wall paper having these desirable characteristics but Whose appearance does not differ from that of ordinary wall paper. 7

These objects are attained by coating the 5 Wall paper with a cellulose compound coating composition containing a wax-like substance, a solvent, with or without a plasticizer, with or wlthout a flatting agent and other ordinary ingredients of cellulose lac- 4 quers. If advantage can be obtained by so doing I may impregnate the paper whose protectionis desired, adding a surface coat of my lacquer or not as expediency dictates.

In my compositions a cellulose ester or a cellulose ether may be used with success.

WALL PAPER Serial No. 506,324.

Among the compounds which I have found useful are cellulose acetate, ethyl cellulose, benzvl cellulose, and cellulose nitrate. If cellulose nitrate be used preferred results are obtained by the use of medium or high viscosity cellulose nitrate. The other cellulose esters and ethers are also useful.

In my composition I use a wax-like mate rlal such as various metallic stearates and/or Waxes such as carnauba, candelilla, Montan, beeswax, flax, raphia, cotton seed, condang, pisang, ocotilla, sugar cane wax, insect (Chinese) wax, psylla, bayberry, cofi'ee berry, palm, japan, myrtle, ceresin, ozokerite, synthetic waxes such as chlorinated naphthalene, and paraflin waxes. Waxes having a high melting point, such as carnauba wax, give res sults which are to be preferred. Good results will be obtained with waxes in solution but preferred results are obtained if the wax 1s 1n suspension.

A plasticizer may be included in my compositions and usually gives preferred results. The plasticizer may be any of those which are commonly used for the softening of cellulose compounds or may be one of the class containing the esters of the mono ethers of polyhydric alcohols. Among the plasticizers I may name dibutyl phthalate, tricresyl phosphate, cellosolve stearate, and castor oil.

The inclusion of a flatting agent such as zinc stearate or aluminum stearate tends to give a wall paper with even less tendency to curl than a wall paper coated with a composition which does not include a flatting agent.

In making up my. wall paper lacquer the wax-like material is ground in a material, such as a hydrocarbon, which will be inert toward the dyes contained in the wall paper. Alcohol being a solvent at least in some degree for many dyes, the use of large quantities of alcohol is to be avoided. After a very fine suspension of the wax-like substance in the hydrocarbon is obtained the grinding is stopped and the wax suspension'is added in the proper. proportions to the other ingredients of the composition.

Examples of suitable finished compositions are found below.

Ethyl acetate 9.3- Gasoline 13.9 Isobutyl acetate 5.5

This example illustrates, among other things, a wall paper lacquer without a softener and containing a synthetic wax. Wall paper coated with it showed ood grease and ink resistance and had good appearance as regards flatness.

Example I I 3 22 1? Example V High viscosity nitrocellulose 6.5 g g zfig Dibutyl Phthalate Benzyl cellulose 6 5 Aluminum steamte Dibutyl phthalate 3,0 carnauba wax Aluminum stearate 4,5 Denatured alcohol 3.5 a Wax 3D gz gg genafured alcohol 13.1 uty acetate 8.4 giigi gig ag ge lltaiol (synthetic amy1a1coho1) ouo Pentasol I gthyl acetate 8, 9 asoline 8.9 100-0 Xylol 11.3 Ewamle H P t [b Butyl alcohol 5.7 $121.? Pyroxylin 6.20 100-0 Carnauba Wax 9.75 Dlbutyl Phthalate This example illustrates, among other Denatured alcohol 200 things, the use of a cellulose ether in my coat- Tollol 19-80 ing compositions. Wall paper coated with yl acetate 20-00 this composition showed good ink resistance, yl acetate 10-00 good grease resistance, and had a good flat Gasolme 9- appearance but tended to curl somewhat al- 100 00 though not enough to seriously affect its utilit Example Ill y Pariislpy Example VI weg P t b High viscosity nitrocellulose 6.2 $222 Oarnauba wax 3.2 Nltrocellulose 6.5 Zinc stearate 6.5 Aluminum stearate 4.5 Cellosolve stearate 2.0 Carnauba wax 3.0 Dibutyl phthalate 3.0 l u yl ph h late 1.0 Denatured alcohol 2.0 *synthetic resin 6.0 Ethyl acetate 20.0 B tyl acetate 33.8 Toluol r 16.0 Pentasol (synthetlc amyl alcohol) 2.}? But lalcohol 6.2 Denatured alcohol 3. Butyl acetate 15.0 T011101 2.2 Gasoline 19:9 X3 101 24.3 Gasoline 8.9 100.0 Example IV 100.0 I age Nitrocellulose 6.5 *The synthetic resin herein had the follow- Aluminum stearate 4.5 mg Composltlon- Pounds Carnauba wax 3.0 I Chlorinated naphthalene (synthetic 52222 5 :fi wax) 6.0 Butyl acetate 8.4 g i z g glycol Pentasol (synthetic amyl alcohol) 2.1 y Denatured alcohol 25.7 -Tolu0l 15.1 This example illustrates, among other things, the use of a synthetic resin in a coat- Example VII Parts by weight Nitrocellulose 6.5 Aluminum stearate 4.5 Carnauba wax 3.0 Dibutyl phthalate 6.0 Beckacite resin 1.5 Denatured alcohol 3.7 Butyl acetate 28.4 Pentasol (synthetic amyl alcohol) 2.1 Toluol 25.0 Ethyl acetate, 10.4 Gasoline L 8.9

This example illustrates, among other things, the use of a modified natural resin in a coating composition made according to my invention. Wall paper coated with this composition had good ink and grease resistance and a good fiat appearance but curled somewhat more than'the foregoing compositions although the curling was not sufiicient to prohibit its use. This composition and the composition of Example VI appear to have a slightly greater water-permeability than the other examples but not a permeability sufficient to interfere with their utility.

My wall paper has overcome former difliculties. The lacquer coatin is invisible and does not have the undesirab e shiny appearance .of ordinary lacquers. It is able to withstand contact with grease, such as Vaseline, for an hour at room temperature without permitting penetration of the grease. Butter which remains on the paper for a half an hour does not penetrate sulficiently to cause discoloration and can be removed without a trace. Ordinary red or blue black ink may be splashed upon the coating, allowed to dry completely, and may then be washed 01f cleanly with a damp cloth. Among the most important features of my wall paper is the fact that it does not curl appreciably when the starch paste of the paperhanger is applied.

The compositions of my invention are useful not only in the coating of wall papers but are also useful in the coating of other fibrous materials, finding a use for example in the lacquering of clothing such as straw ats.

As many apparently widely difierent emwithout departing from the spirit and scope thereof, it is to be understood that I do not limit myself to the specific embodiments thereof except as defined in the appended 00 claims.

I claim:

1. A washable wall covering comprising a and a material from the group consisting of ing such as to bodiments of this invention may be made waxes and metal stearates, the character and goportion of the ingredients of the coating mg such as to give an invisible, matte, washable surface fi 2. -A washable wall covering comprising a fibrous base, and superposed thereon a surface coatin comprising cellulose nitrate and a material from the group consisting of waxes and metal stearates, the character and proportion of the ingredients of the coating beglve an invisible, matte, washable surface film. i

3. A washable wall covering comprising a fibrous base, and superposed thereon, a surface coating comprising a cellulose compound, a wax, and a metal stearate, the character and proportion of the ingredients of .the coating beingsu'ch as to give an invisible,

carnauba wax, the character and proportion of the ingredients of the coating being such as to give an invisible, matte, washable surface film.

6. A washable wall covering comprising a fibrous base, and superposed thereon a surface coating comprising cellulose nitrate and carnauba wax, the character and roportion of the ingredients of the coating [icing such as :35 give an invisible, matte, washable surface 7. A washable wall covering comprising a fibrous base, and superposed thereon an invisible, matte,-and washable surface coating or film comprising cellulose nitrate and a wax in the relatively approximate proportions of parts cellulose nitrate for 46 to 155 parts of the wax.

' 8. A washable wall covering comprising a fibrous base, and superposed thereon an invisible, matte, and washable surface coating or film comprising cellulose nitrate and a metal stearate in the approximate relative proportions of 100 parts cellulose nitrate for 63 to 104 parts of the stearate.

9. A washable wall covering comprising a fibrous base, and superposed thereon an invisible, matte, and washable surface coating or film comprising cellulose nitrate, a wax, and a plasticizer in the approximate relative proportions of 100 parts cellulose nitrate, 46 to 155 parts of the wax, and 15 to 92 parts of the plasticizer.

10. A washable wall covering comprising a fibrous base, and superposed thereon an invisible, matte, and washable surface coating or film comprising cellulose nitrate, a wax,

and a metal stearate in the approximate relative proportions of 100 parts cellulose n1- trate, 46 to 51 parts of the wax, and 63 to 104 'parts of the stearate.

11. A washable wall covering comprising a. fibrous base, and superposed thereon an mvisible, matte, and washable surface coating or film-comprising cellulose nitrate, a. wax, a metal stearate, and a plasticizer in the approximate relative proportions of'lOO parts cellulose nitrate, 46 to 51 parts of the wax, 63 to 104 parts of the stearate, and 15 to 92 parts'of the plasticizer.

12. A washable wall covering comprising a fibrous base, and superposed thereon an 1nvisible, matte and washable surface coating or film comprlsing cellulose nitrate, carnauba wax, aluminum stearate, and dibutyl phtha-late in the approximate relative proportions of 100 parts cellulose nitrate, 46 to 51 parts of the-wax, 63 to 104 parts of the stearate, and 15 to 92 parts of the hthalate. r 13. A washable,'su stantially non-curling wallpaper comprising a wall paper base, and superposed thereon a surface coating comprising a cellulose'compound and a material from the group consisting of waxes and metal stearates, the character and proportion of the ingredients of the coating being such as to give an invisible, matte, washable surface fi m.

14. A washable, substantially non-curlin wall paper comprising a wall paper base, an superposed thereon a surface coating com prising cellulose nitrate and a material from the group consisting of waxes and metal stearates, the character and proportion of the ingredients of the coating being such as to give an invisible, matte, washable surface film.

15. A washable, substantially non-curling wall paper comprising a wall paper base, and

superposed thereon a surface coating comprising a cellulose compound, a wax, and a metal stearate, the character and roportion of the ingredients ofthe coating eing such as to give an invisible, matte, washable surface film.

16. A washable, substantially non-curling wallpaper comprising a wall paper base, and superposed thereon a surface coating comprising a cellulose compound, a wax, a metal stearate, and a plasticizer, the character and proportion of the ingredients of the coating being such as to give an invisible, matte, washable surface film.

17. A washable, substantially non-curling wall paper comprising a wall paper base, and superposed thereon a surface coating com.- prising a cellulose compound and carnauba wax, the character and proportion of the ingradients of the coating being such as to give aninvisible, matte, washable surface film.

18. A washable, substantially non-curling wall paper comprising a wall paper base, and superposed thereon a surface coating comprisin cellulose nitrate and carnauba wax, the c aracter and roportion of the ingredients of the coating lieingsuch as to give an invisible, matte, Washable surface film.-

19. A washable, substantially non-curlin wall paper comprising'a wall paper base, an superposed thereonan invisible, matte, and Washable surface coating or film comprising cellulose nitrate and a wax in the relatively approximate proportions of 100 parts cellulose nitrate for 46 to 155 parts of the wax.

20. .A washable, substantially non-curlin wall paper comprising a wall paper base, and superposed thereon an invisible, matte, and washable surface coatingorfilm comprising cellulose nitrate and ametal stearate in the approximate relative proportions of 100 parts cellulose nitrate for 63 to l04parts of the stearate.

21. A washable, substantially non-curlin wall paper comprising a wall paper base, and superposed thereon an'invisible, matte, and washable surface coating or film comprising cellulose nitrate, a wax, and a plasticizer in the approximate relative proportions of 100 parts cellulose nitrate, 46 to 155 parts of the wax, and 15 to 92 parts of the plasticizer.

22. A washable, substantially non-curlin wall paper comprising a wall paper base, an superposed thereon an invisible, matte, and washable surface coating or film comprising cellulose nitrate, a wax, and a metal stearate in the approximate relative proportions of 100 parts, cellulose nitrate, 46 to 51 pa rts of the wax, and 63 to 104Iparts of the stearate.

23. A washable, substantially non-curling wall paper comprising a wall paper base, and superposed thereonan invisible, matte, and washable surface coating or film comprising cellulose nitrate,'a wax, a metal stearate, and a plasticizer in the approximate relative proportions of 100 parts cellulose nitrate, 46 to 51 partsjofthe wax, 63 to 104 parts of the stearate, and l5 to 92 parts of the plasticizer.

24. A washable, substantially non-curling wall paper comprising a wall paper base, and superposed thereon an invisible, matte, and washable surface coating or film comprising cellulose nitrate, carnauba wax, aluminum stearate, and dibutyl phthalate in the approximate relative proportions of 100 parts cellulose nitrate,,46 to 51 parts of the wax, 63 to 104 parts of the stearate, and 15 to 92 parts of the phthalate.

In testimony whereof, I afiix my signature.

EDWARD F. ARNOLD.

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