SE129965C1

SE129965C1 -

Info

Publication number: SE129965C1
Authority: SE
Publication date: 1950-01-01

Description

Uppfinnare: L. Leben. Inventor: L. Leben.

Prioritet begard frdn den 22 mars 1946 (Siorbritannien). Priority was given on 22 March 1946 (Great Britain).

Foreliggande uppfinning avser satt att framstalla slang. The present invention relates to a method of manufacturing a hose.

Enligt uppfinningen kunna nya och forbfittrade slangar av stor styrka och hallbarbet framstallas genom ett forfaringsatt, som omfattar flatning eller lindning av garn, tradar eller vavnad, som i huvudsak utgores av hogpolymera, linjara estrar, vilka erhallas genom att man upphettar en eller flera glykoler av serien HO(CIL)n OH, dar n är st6rre an 1 men icke overstiger 10, med tereftalsyra eller ett esterbildande derivat arm kring ett rgr av gummi eller gummiliknande material och darefter, om sa elnskas, forser namnda ror med en yttre bekladnad av gummi eller gummiliknande material och, om sa onskas, fardigstaller eller vulkaniserar den sá bildade bekladnaden. Om sã onskas, kan man tillfoga ytterligare skikt av gummi eller ocksa ett flatat eller annat fodral. Dylika slangar aro motstandskraftiga mot ultraviolett ljus och notning samt paverkas icke namn-vart av de fiesta organiska vatskor, syror och syraangor. According to the invention, new and pre-fitted hoses of high strength and hall barbe can be produced by a pre-process set, which comprises flattening or winding of yarns, threads or woven, which consist mainly of high-polymer, linear esters, which are obtained by heating one or more glycols of series HO (CIL) n OH, where n is greater than 1 but does not exceed 10, with terephthalic acid or an ester-forming derivative arm around a tube of rubber or rubber-like material and then, if desired, provide said tubes with an outer coating of rubber or rubber-like material and, if desired, stalls or vulcanizes the cladding thus formed. If desired, additional layers of rubber or a flat or other case can be added. Such hoses are resistant to ultraviolet light and wear and are not affected by name by most organic watercress, acids and acid vapors.

Med 115Igpoiymera, linjara estrar forstas polyestrar, vilkas tradar eller folier kunna andriktas genom dragning eller valsning, sâ- som framgar av karakteristiska rontgenstralemonster. Exempel pa. esterbildande derivater av tereftalsyra aro dennas alifatiska (inklusive cykloalifatiska) och arylestrar samt halvestrar, dess syrahalogener saint dess ammonium- och aminosalter. Exempel pa glykoler aro etylen-, trimetylen-, hexametylen- och dekametylenglykoler. Av namnda polymera estrar foredrages polyetylentereftalat pa grund av lattheten att anskaffa de ramaterial, som bilda dess syntes, saint pa. grund ay dess hoga smaltpunkt, som är 240° C. Polymeric, linear esters are understood to mean polyesters whose threads or foils can be impregnated by drawing or rolling, as evidenced by characteristic X-ray patterns. Example pa. ester-forming derivatives of terephthalic acid aro its aliphatic (including cycloaliphatic) and aryl esters as well as half esters, its acid halogens saint its ammonium and amino salts. Examples of glycols are ethylene, trimethylene, hexamethylene and decamethylene glycols. Of the said polymeric esters, polyethylene terephthalate is preferred because of the ease of obtaining the raw materials which form its synthesis, saint pa. due to its high melting point, which is 240 ° C.

Tradar av sagda polymera estrar framstallas mycket latt genom ett godtyckligt, kant smaltspinningsforfarande, t. ex. genom att smalta den polymera estern pa ett upphettat galler, leda smaltan genom ett filtrerskikt, bestaende av fina partiklar, exempelvis sand, i och for smaltans filtrering samt pressa smaltan genom ett sprutmunstycke och hastigt avkyla de sa bildade tradarna. Man fOredrager att draga dessa tradar i fast tillstand, pa det att de darigenom skola erhalla hog strackhallfasthet, elasticitetsmodul samt motstandsformaga mot vatten avensom lag uttanjningsfaktor. Det är vidare lampligt, att tradar eller av tradar framstallt garn, som anvandas vid fOreliggande forfaringssatt, efter dragning utsattas fOr en varmehardningsbehandling vid temperaturer, som aro 'Ogre gn 60° C, men lagre, lampligen minst 30° C lagre an tradarnas smaltpunkt, da. tradarna hallas under straekning. Pa detta salt kan man erhalla tradar och garner av stor seghet och med ringa strackningsfOrmaga, t. ex. mindre an 10 % av den dragna langden. Dylika tradar eller garner kunna, sedan de blivit fullstandigt dragna, vavas eller flatas till vavnader, -vilka, samtidigt som de aro starka, icke stracka sig namnvart, da. de utsattas for en strackpakanning, t. ex. da en brandslang är fylld med vatten under tryck. Trades of said polymeric esters are very easily prepared by an arbitrary, edge melt spinning process, e.g. by melting the polymeric ester on a heated grid, passing the melt through a filter layer, consisting of fine particles, for example sand, in and through the filtration of the melt, and pressing the melt through a spray nozzle and rapidly cooling the threads thus formed. It is preferred to draw these wires in a solid state, in that they will thereby obtain high tensile strength, modulus of elasticity and resistance to water as well as the law of extinction. It is furthermore appropriate that threads or yarns made from threads used in the present process are subjected to a heat-curing treatment after drawing at temperatures which are less than 60 ° C, but lower, preferably at least 30 ° C lower than the melting point of the threads. da. the traders are held during stretching. On this salt you can obtain threads and yarns of great toughness and with little stretching ability, e.g. less than 10% of the drawn length. Such threads or yarns, after being fully drawn, can be waved or flattened into weaves, which, while being strong, do not stretch at all. they are subjected to a stretch packing, e.g. when a fire hose is filled with water under pressure.

Garner kunna framstallas av tradar enligt foreliggande uppfinning genom att man tvinnar samman en bunt av sammanhangande tradar eller spinner stapelfibrer av de polymera estrarna. Stapelfibrer kunna framstallas genom skarning eller brytning av sammanhangande tradar ay dylika estrar, lampligen sedan tradarna blivit krympta. Garner, framstallda av sammanhangande tradar, fgredragas f Or anvandning vid foreliggande forfaringssatt grund av dess storre strackhallfasthet. Yarns can be made from yarns of the present invention by twisting together a bundle of continuous yarns or spinning staple fibers of the polymeric esters. Staple fibers can be produced by cutting or breaking cohesive threads of such esters, preferably after the threads have shrunk. Yarns, made from cohesive threads, are preferred for use in the present process due to its greater tensile strength.

Vavnader, avsedda att anvandas i forfaringssattet enligt foreliggande uppfinning, kunna framstallas av ovan angivna garner eller av sammanhangande tradar genom nagot godtyckligt, kant forfarande. Det ãr lampligt, att garn eller tradar flatas med anvandning av en rundflatningsmaskin direkt pa gummiroret, men flator eller vavda band kunna, om sa onskas, bindas kring raret. Fabrics intended for use in the method of the present invention may be made from the above yarns or from cohesive threads by any of the edge methods. It is appropriate for yarns or threads to be flattened using a round flattening machine directly on the rubber tube, but flats or woven ribbons can, if desired, be tied around the tube.

Garnen kunna bindas eller flatas kring ett 2— — gummi- eller gummiliknande material under anvandning av nagon godtycklig, kand anordning eller nagot kant forfarande. Om sh tinskas kunna tradar eller vavnader enligt foreliggande uppfinning fastas vid gummit med tillhjalp av ett bindemedel. Sasom larnpliga bindemedel mft anforas en organisk polyisoeyanatblandning och en resorcinolformaldehydblandning. The yarns can be tied or flattened around a 2 - - rubber or rubber-like material using any arbitrary, kand device or any edge procedure. If it is possible to thread or wrap according to the present invention, it can be attached to the rubber with the aid of an adhesive. As organic binders, an organic polyisoyanate mixture and a resorcinol formaldehyde mixture are provided.

Lampliga gummiliknande material for anvandning yid foreliggande forfaringssatt omfatta skilda, syntetiska gummimaterial, sa.- som butylgummi saint polykloropren och en butadienstyrolsampolymer avensom mjukgjord polyvinylklorid. Sistnamnda material kraver naturligtvis ingen vulkanisering, medan daremot, om det anvandes i form as finmalen polyvinylklorid, emulgerad i ett mjukningsmedel, emulsionen kraver en efterbehandling eller gelatinering. Suitable rubber-like materials for use in the present process include various synthetic rubber materials, such as butyl rubber saint polychloroprene and a butadiene styrene copolymer as well as plasticized polyvinyl chloride. The latter material, of course, requires no vulcanization, whereas, if used in the form of finely ground polyvinyl chloride, emulsified in a plasticizer, the emulsion requires a finishing or gelatinization.

For de fiesta slangar kraves ett lamellerat rtir av omvaxlande skikt av vavnad eller gummi eller gummiliknande material. Andra vavnader, sasom linne, kunna anvandas i pa varandra lagda lager, men man foredrager, att vavnader eller garner, bestaende av linjara, polymera estrar enligt fiireliggande uppfinning, anvandas sasom yttre holje, eftersom man darigenom erhaller slangar av Rad hallbarhet pa grund av de polymera estrarnas soda motstandsformaga 'not ultraviolett ljus och mot notning. De polymera estrarnas sto ra motstandsformaga mot syror, organiska foreningar och jordbakterier medfor liven, att slangvavnader enligt foreliggande uppfinning kunna anvandas under vitt skilda forhallanden utan att forstoras. For most hoses, a laminated backing of alternating layers of woven or rubber or rubber-like material is required. Other fabrics, such as linen, can be used in superimposed layers, but it is preferred that fabrics or yarns, consisting of linear, polymeric esters according to the present invention, be used as outer sheath, thereby obtaining tubes of rad durability due to the the soda of the polymeric esters is resistant to ultraviolet light and to wear. The high resistance of the polymeric esters to acids, organic compounds and soil bacteria means that hose fabrics according to the present invention can be used under widely differing conditions without being enlarged.

Claims

Patent claim:

1. Made to produce hose, characterized by flattening or winding yarns, threads or woven fabrics, consisting essentially of highly polymeric, linear esters, which are obtained by heating one or more glycols of the HO (CH. , where n is greater than 1 but does not exceed 10, with terephthalic acid or an ester-forming derivative thereof, around a tube of rubber or rubber-like material.

2. A kit according to claim 1, characterized in that the polymeric linear ester consists of polyethylene terephthalate.

3. A kit according to claim 1 or 2, characterized in that the hose is provided with an outer coating of rubber or rubber-like material.

4. according to claim 3, characterized in that the coating of rubber or rubber-like material is hardened or vulcanized.

Hose, made according to any of the methods set forth in the foregoing patent claims. Stockholm 1950. Kungl. Boktr. P. A. Norstedt d; Winer 500080