106. COMPOSITIONS, Cross Reference Examiner-I OOAOOG 0R PLASUC ' 79 Patented Sept. 30, 1930 1,777,162

‘UNITED STATES PATENT oI-‘nca

ARTHUR BIDDLE, or 'rnnmon, mew ceases, assrenon 'ro um'rnn rnonuo'rs con _ roaa'rron or AMERICA, A coarona'rron or DELAWARE ' ADEESIVE WATEBFBESISTING COMPOSITION OF MATTER I No Drawing. Application ?led July 21,1927. _Serla1 No. 297,583. I 7 This invention relates to the treatment of dition; Said generally being pre normally water-resisting or inaqueous col served _with about 3% of an alkali such as loids of a Hex15le na'f?i'e wltli an‘ allialme ammonia. _ _' . earth hydroxide and a later-soluhle com H the normally inaqueous and water-re 5 pound ?gf'h'ofo?‘ with a. rotemous,,__a_l_57r1iihi'-> sisting ?exible colloids are unstable and if a ll’gyzlprbillyalfgjg and 0 er Ornate ~sol’uhl'e‘, strgnlgkadhesive is desiredl, ah dro hillic 'col "; water-ahsorhiifg and water-miscible colloidal oi ' e casein or anima 'glue or starch and

substances. ' . _ pa?icularly cassava may e? added to the Another object of my invention is to pro water-resisting collo1d in aqueous dispersion 10 duce a glue with varying degrees of adhesive or the water-soluble hydrophillio COllOld ma strengt w 'ch will not necessarily have a be initially treated with the alkaline eart strong caustic action, on the articles or ma hydroxide .in order to not only make the terials glued. hydrophillic colloid'more water-resisting but ' ' Another object of my invention is to make to break the colloid down and thereby make a 15 a glue that contains rubber and which may thinner solution, and especially so if the be vulcanized. Other oh]ects of my inven boron com ound or borax, is added to it with tion will appear in the speci?cation. the 'alkahhe earth compound. Other‘ 5% ‘ . By the alkaline earth h droxides are meant loidal materials like water-soluble o1 » the hydroxides of such as calcium, barium, soa s, water-s ms like Earaya, arah1c, 20 strontium or ma nesium But more particu rag‘ acan and col 10 i agcla s may he ‘ad 70 ar y 0 calcium as that element seems to give vantageousl use 1m my com osition. If a best results when in its hydroxide state. It 'stron lue 1s desired blood or lood albumen is to be ‘understood that the oxides of such may e su 'ected to the alkm substances are within'the purview of my dis droxide an borax or added to the aqueous > closure, as the oxides when used in the pres dispersionof the inaqueous colloid. Water 75 ence of water will generally be changed to soluble silicates may be added to the aqueous hydroxides.- Further, the oxides or the hy dispersion, hut in doing so care should be droxides may be the natural-earthy sub-. taken to avoid curdling or precipitation on stances or they may be the product of chemi the addition of the earth hydroxide or the 30 cal processes as for instance the reci ita-tion boron compound. If this curdling is unde 80 of calcium hydroxide from other calcium sirable it may be avoided by ?rst making up ‘ compoun e a aline hydroxides as the composition with a water-soluble colloid produced-from calcined marine shells or bon thatis compatiblev to the alkaline earth hy materials maya 0 e a van ageo yutllized droxide and the boron compound. The wa 35 in my invention. 85 ../"m The ?exible ggms such as chicle orrehicle ter-soluble silicate such as sodium silicate substitu es a a a, tta- ercha rubher or may then be cautiously added, 1f not 1n too ruhher containing su ances elther nat'iiral large amounts, and the curdling avoided. VA or synthetic may be used in their crude gum ' good water-soluble colloid to be used as above ‘40 my form or may be aqueously dispersed in . state lscasemw c s o d be in solution to ' the making of [the compositions herein dis “ give the intended results. ' _ closed. That is, they may be dissolved in an an ~example of_ one embodiment of my or anic solvent and then aqueously dis (invention that may be used as a moderately persed hy the various dispersing substances or strong wood glue will be given the following: 7 45 . water-absorbing colloids- or they may be all’? g’ p I mastioated therewith. 1Or if obtainable, the y substances may be initially used in Casein (commercial grades) ______their arti?cial or natural aqueous dispersed~ Calcium hydroxide_r_'_; ______.._ 12 state. A goodexample of this is natural rub- Sodium borate (commercial borax) ____ 7 60- ber latex in plrepr ‘treated or pgesggyed con- Water (to dissolve the above) ______-- 130 100

a? 2 1,777,162

After the above has been allowed to dis- fore using, reservin avents may be added "\\ solve, add rubber latex (approzdmately 35% thereto. 7 Among" és'efzfg'en s are sodium for- M rubber content; 150 parts by weight. mate sodium benzoate, sodium sa 1c ate, eta V - \Vhen the composition is to be used as an and al ha na Htliol, arsenic, campl'ior, Ila-H 5 adhesive size or base for a lastic vehicle or th 1 n “and the many compounds. 70 as a “comma ase e o owing proportions llils like citronella. cedar 01 ,01 o itter a - / may e a vantageously utilized: 'mo-nds, @sene or others not only help to h 22%‘? preserve but prevent lumping and give the ' Casein ____: _ _ _ 50 composition a sweet scent. ’ 1 Turkey red Oi; """""""""" """"' It is to be understood, of course, that the 75 Bentonite clay ______"T """ “7'” ,1 water-soluble alkaline compound of boron Blood albumeg'l """""""""""""" " 1 mentioned herein may be other than the com Animal Glue """"""""""""" n 100 monly known borax, as for instance, the tri- , Calcium“ lWéRgéé"? """"""""" " 30 borates of a water-soluble nature, of sodium 15 Sodium borate (h0g5 """ '7 ___ "7" 30 otassium and other metalllc basis. Further, so Sodium Silicate * “"éllll"" " 30 liie Boron compounds may be sin le salts, % Water W __ :i'::"'::' “'TI-"I' 400 ble or e salts theieO?hsliclll asdcplilnbliilliia . - ions W1 5 mile 0s a es an e e. Beech wood creosote 011 """""""" “ 4 In thee'xamp es given only‘the basic adhe 20 The casein is preferably dissolved ?rst by sive compositions have been set forth, but inwas adding it to the Water and then adding the every art and industry there are countless l calcium hydroxide and the borax thereto. ing and colorin materials that may be a e ,1 After which the other ingredients may be mmbme W1 h my composition to satisfy - added, except the beechwood creosote which known and de?nite needs of the particular art .i' 25 is preferably addedrlast. To this composi~ of industry. However, the additions of these}9o tion is added: : ,, , it??? tivematerials research do whennot need their any properties exercise andof inven- char I,‘ Rubber latex ______300 acteri'stics are so well known,aloneand1ncom- ‘ Zinc dxide ______W______20 binatlon with other substances. Of these ma- , 3 Litharée ______- ______"______8: terials might be mentioned carbon and other 95,‘ sulph?r ______blacks zinc oxide, the carbonates, alummates ' ,_ _ _ and stearate of s dium, calcium, magnesium The Zmc 0x156, hthal‘ge and Sulphur are etc. Ur ?brous material'like asbestos cotton’, preferably added to the composition at last, as 6611111 smmwnmood or v 35 the sulphur and zinc oxide may have a coagu- H er; 0115f like linseedJ ms or", Ubina 100 laiing effect 011 the COmPOSitiCII 01‘ the in- motton seed, tar oils, heavy petroleum g'l'edients thel‘cof oils, , or or oils (this When the water-soluble COllOldS 3138' in 01 am emu s1 er 3118 as a thick compositions that may be subjected to damp- ener), The oily aaa?ions ‘are utilized 1n 40 ness or water it is desirable that those colloids s1z1ng and coating arts as are'the more or 105 or compositions be treated to an insolubilizin less water-insoluble solid materials above or irreversibilizinw medium. ‘These agents'or named. medium‘smay be added to Elie various ingredi- The word adhesive is used in my disclosure ents of the composition or to the composition in its broadest sense and may be '(gmadhesive _ c5 as a whole. Colloids like bentonite clav wa- or adhesive in nature, andreas meaning a dry 11o » ter-soluble Olls of tlie'turkev red oil tvpe are ora liquid substance. Inherently it may be not as a rule known as insolubilizable colloids, an adhesive but industrially it may be a-siz although water-soluble oils seem to revert to ing coating or a Vehicle for’ other materials ‘ alloil condition’in the presence.“ aniagid. or or as a base’ for plastic and’moldable mate t?k?llld substance. "Among these msolubihz‘ing rials or Objects’ that is’ it may adhere’ glue, 115 J “Laents are formaldehyde" para 0mm 3' e’ hold ?x bind or occlude countless small and exainethvlenetet?mine, calcium, zinc and fi 1’ ’ _ ? . 1 f copper chlorides, potassium or sod1um chro- - “8 y ground matter or bras -or “me es 0 7 mates, alums tannic acid or‘tannate com- great 5128- _ _ 7 55 ms mom}, ‘5f these com_ _ In order to achieve certain results asshown 12o // pounds of an acid nature act a& coan'ulants 11} the _examples other rchemlcals thPlt com’ { of the Water-soluble colloids and also 0? ti; e bme W1th_'th6 alk?llne Parl'jh hyflmxlde may \ normally mqqueoug collolds m aqueous (115. be used with or m’combmatmn _w1th the boron -- persion. Many acidsubstances like zinc sul- ‘ COmROImCL Qf these matemls Plight be_ I") hate and sodium acid sulphate the various‘. mentioned sodium ?uoqde, tr1~sod1um phos~~ 125 acidssuch as so g uric, acetic or ydrochloric phat , ammomummarbonate, E2; " and many o ers iave a strong coagulatlng dium tunrrstate, so mm or otassium car action on the colloids in aqueous dispersion. Bouato or s 1' he ate, . ‘I He ad men '_0 ese -\Vhcn the composition is in liquid form for c iemicals bring about new water-insoluble ‘if’ some time as is the case of a sizing or glue, be- compounds with the alkallne earth hydrox- 130

- ' 1'06. cemPosmews, * Cross Reference - V Examiner-i COATING 0e PLASTIC

1,717,162

ide, and/or new'compounds with the co -\ loidal substances. While I have herein described some par-, ticular compositions embodyin my inven tion and methods of producing t e same, and also mentioned some of the arts in which my invention may be'utilized, it is to be under stood‘that the invention is not limited to those arts, or methods or_ to the precise in gredients or pro rtions thereof. Ha ' thus escribed m invention, I claim and desire to protect y Letters Pat— ent of the United States! ~ - 1. An adhesive com osition comprising an aqueous dispersion of rubber latex casein,‘ and an alkaline earth hydroxide an a com pound of boron. 2. An adhesive composition of matter in aqueous dispersion comp ' ' rubber latex, casein, calcium hydroxide an borax. 3. An adhesive composition of matter com prising an aqueous dispersion. of a rubber substance, casein, an alkaline earth hydrox ide and a water-soluble alkaline compound of boron. ' 4. An ' adhesive com osition comprising an aqueous dispersion 0 rubber, casein, cal cium hydroxide and sodium borate. 5. An adhesive composition comprising 30 rubber latex,,one hundred parts; casein, one‘ hundred to two hundred parts; calcium hy- ' droxide, twenty to ?fty parts; sodium bo-' rate, ten to twenty ?ve parts. 6. An adhesive com ositio'n comprising rubber latex, casein, ca cium hydroxide, so dium borate and sodium carbonate. 1 In witness whereof I hereunto set my hand this'19th day of JulgBTHUB , 1927'. BIDDLE.

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