DE1469094A1 - Process for the production of fiber material from polycarbonates - Google Patents

Description

dr. ε. wiegand Mönchen is, October 2nd, 1959

MÖNCHEN 'NUSSBAUMSTRASSE 10

DlFL-ING. W. NIEMANN Telephone, 555476 VAT ANWXtTE

g «18877/59 7 / Ed

Kunoahima Ka ^ aku Kogyo

Kabushiki Kaisha Hiroshima-ken, Japan

Process for the production of fibrous material made of polycarbonates

Me invention shall look to a Verfahrt η for the preparation of 3? Asern, dei'en Hu.uptkoiapon.unten from i'o3Lyoarbonuten exist welohe using 4 '4 ^I -I> ioxydi-phenyl-2 _t 2 ~ propane as mainly made of synthetic materials from angsja material.

Ea is a Zv / eok of the invention »Polycarbonatfaaern zu create, which have excellent properties

Another purpose of the invention is to create a method in which, according to a SchmelaproaeBS, fibers are made from polycarbonates with a suitable degree of polymerization and then v-arstreect while they are wepdea _t, whereby fibers with high strength and from-

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^ e.iohneter flexibility hergeo can quickly be able to ground.

The Polycarbonato of 4.4 ^t -Moxydiphenylallcan "-type know synthetioeh horgestollt wox-the" by "either a 4 '4' -.Dioxydiphonylnlkan Ii presence olnos i'iaurebindeniittüls with phosgene or 4,4-dioxide! Phenylalkane with a Carbon dioxide dehydrated in an udder exchange reaction. V / e ^ that of the thought / ion 7osstigJ;: oit, dor very great flexibility, the UborrEigondon Wiirmöstabilitiit, the auo ^ euoi without sound elelctriBChen "i / jensehaffcnn uaw., The dieüo kind of x ^J olyourbonuto ^v i on hwniufc, on hwniufc bokaiint that it is used by him at the hero;. -jlluns of films or other shaped 'icgeno stands on a large scale'.

. " ^T ay this outstanding, ISigenschafton the front Going mentioned polycarbonates nixid special UnVrauchungen angeateLIt ν / orden, ιικ; to realize their use as fibers. It turned out that for the production of paoern with special fibers and similar to the polycarbonates of the 4,4- ^l- oxydiphonyl-2,2-ropan type it was necessary that the molecular weight of the polymers, ie doi * normalwelae ala ^ rtindmolare viscosity (i'inere Viokoeltät) be.3eio tito V / ert, geeijn.rt is rooted and that the molecules of the ^ eaponned threads are oriented by stretching,

Such polycarbonates wither, which under use

SAD ORiGiNAL

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dvtxi _t ; of 4t4'-I) ioxydiphonyl-2,2 ~ propane as Auagangeinmaterial, because of their structure, the property that their polarity and the rate of Y / aeserabsorption are low and their dye affinity should be improved if such polycarbonate fibers Can be used in clothing. ee has üich been found here that the Farbstoffaffinltät can be considerably verbeenert, v / hile verBdh, iedene _t excellent properties of Polyourbonete not deteriorated vTdea, indeii Polycarbonato golaagaa to Dinsatz, aufweiöen _f dio from the group of Oarboxylreete which üäurereete within its structural unit, and SuI-fonsäurereet © are selected *

Thus, the method according to the invention involves heating and melting a resin, the main body of which is bipolar. Aolycarbonat is wölchee 4 # 4'-BioxydipheÄ2rl-2 _t 2 "propane with a normal ,! basic molar viscosity has been established, furthermore that the above-mentioned molten mass is expelled, then it is cooled to form threads and then the molecules in the threads formed are oriented by stretching »

The fiber material according to the invention includes technical ones Fibers, for example tire cord, canvas,

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Filter cloth »tepid or ropes, fibers or fabrics for electrical · Isolation devices oderfauwfcrk stm flat »boron * Most, and others, also fibers for use in clothing manure pieces

In particular, the method according to the invention is used because "polymerizate is in an atmosphere of inert gas *" sohmolaen »for example in Stlokatoff {in general the molten i'olyraerisat is continuously one Spinneret arrangement not only at constant speed, but also under a relatively high pressure carried out »The stream of molten polymer is spun through a spinneret in Stioketoffgae or in air, in order to be solidified, formed on threads and afterwards old wound at constant speed on a spool, finally the fibers obtained on this catfish stretched while they are heated

As polycarbonato, which in << em process according to the Invention to use, come the self-employed Polycarbonates in question, which by conventional methods -were made, beleplelsweiee using 4,4 »-Dioxydijjhenyl-2,2-propane as the starting material in the presence of a tffturebindemant and a suitable one

with phosgene

Solution or reaction with a carbonic acid diester is brought, furthermore the polycarbonate mixtures of this with andoren »elbe-stranded polycarbonates, which

809901/0731

NaOH Ubii ohtn method au "other dioxy compounds aue dtr group of 4 _f 4'-lJioiy diary lalkano, 4"4'-Di oxy diary 1-sulfone, and 4,4'-Dioxydiary! alkanes with Üüurereuten as the CartoxyIrβnt and the Sulfonaäurereut , obtain ulna, or those to which 2-10% of the non-carbonated or non-carbonated polycarbonates have been added, furthermore the mixed or carbonated carbonates, which are similarly customary processes from 4,4'-dioxydipheny 1-2,2-propane All main gango material and related to it 1-10% by weight of other dihydroxylyer bonds have been produced, ie other dihydroxy compounds from the group of 4 »4 ^I -oxydiaryl * lkan ·, 414'-DlOXyOHaTyIBuIfOnO and 4» 4 * -2) ioxydiarylalkanes with acid reactants, such as the carboxyl radical or dta üulfoneäurereet; or the like.

Se ata <l therefore as Polyoarbonate "according to the invention welohe" go to Eineati kc3nnen, beiapioleweiee the polycarbonates aeeignat that aua 4 _t 4 ^l -Dioxydiphenyl-2,2-prop * n and fhosgen or eintm Kohlenaäuradieoter have been prepared mixtures au »one polycarbonates which consists of 4" 4 ^t -Dioxydipiienyl-2 _f 2-propane mT produced & 9 & is, and then lied to 2 - to <3ew.?S uinoe polycarbonates which au · 4 »4'-dioxydiphenyl-2,2-butane ? been obtained, the mixture of a Polyoarbona / k, the -Dioxydiphenyl of 4.4 ^t ~ 2,2-propane let prepared "and then based 2-10 wt * f of polycarbonates, which consists of 4 | ^4-l - i3ioxydiph9nyl-2,2-

809901 / 073t

ρ obtained on tan / was permanently geniaoftte or externally condensed polycarbonate »which is produced from 4 _t 4 * -dioxydipheίlyl · 2 _f 2-propane and, based on this, 1-10 Gow · ^ 4» 4 ^f -oxydiphenyl-2 _t 2-he3ean Been iat, daa, -ciiiioehte odor mi8chkondensierte ioiyearbonat, which "aua 4" 4 ^f -Mo2ydiplicnyl-2,2-propane and related to it 1-10 (Jew, ^ 4,4'-MOXyUiphenylmothyliaobufeyliaetha: i horge "tolled lot" the \ Misohunü auü a Polyaarbonat, dao auo 4 »4 ^f -Moxydiphenyl-2,2-propane iot prepared" wad it Besoijen 2-10 wt. ^ S einoo Polycarbonato, v / elciiea now 4 »4'-dioxy ~ diphönylfjuli 'on hergoe-ollt wordo-t lot, daü ^ oniochte or guotumaen kondenoierto tolyuarbonat, v / o..choa au «4» 4'-DiOXydiphenyl-2,2-propane and on it besoden 1-10 üow ..' 4 » 4 ^f -1) 1-oxydipiienylsulfon iat, or the mixture of a polycarbonate, whose arbotoffaffi «it has been increased and therefore from 4,4 ^f -dioxydiphenyl-2 _l 2-propane, and then beaotion 2 -1 ') Gf-w.jS of a polycarbonate, which was obtained from 4 »4'-I>loxy-'3,3 ^f -dlcivri) oxydiphenylmethsn' further 'the mixture of a polycarbonate _f gives way to 4 _f 4 ^l -l> ioxydiphenyl-2,2-propane get v / orden iat _t and related to this 2 - 10 uuw. 'One of 4f4 ^t -]> ioxy «-3 _t 3'-ui _l > sulfQdiphenylmothan polycarbonate _t the geciiochto or zuoamaon condimulated polycarbonate which is made from 4,4 ^f -dioxydiph.enyl-2 _t 2-propane and based on it 1- 10 6ew »$ 4j» 4 * -i) ioxy-3f>'- äicarboxy-

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diphenylmethane has been obtained; -disulfodiphonylmethnn -were iet, dao mieehte or Susanne condensed rolyebonate _t which aua 4 _f 4 ^l -Bioxydtph <? nyl-2 _f 2 ~ propaa and beaojen 1 - 10 & © * · $ 4 »4 * -I> ioxy -3 «3 ^l * -dioarboxy-5,5'-dimethj ^ ldli) heny!« Ethane, has been preserved »and furthermore the color in the« oinem Polyoarboaat, valoha »au» 4 »4'-2> ioxydiphenyl« 2 _f 2 * 'propane horgoetellt wordoa int, with alnon mixed odor

koadeauierton iolycarboaat au »dor group dor ge or jsuBammea koadoaaiüri * ea l'olycarboaat ©, vrie aie vorotiihend ^ oaannt wordon eiad.

The in the process (!, © κΕΠ der Ert induag zu beweadönderi i ^J olymerieat0 weiaea extremely high sehmel triacity .uf. RJieco SohiBeliSYiBkoBitiit is ia great! Auamaös by the average molecular weight of the aur application dui ^% oh <iie {jrundxAolure viscosity dropped out, the value never reacerted also ecliarf to tempora turn cLwanltungen above the üclanelzp \ iaktüß # those Polyniorioate _t, which a too high noh &elgviekoaitf't aelgcn, the boom in the case of difficulties with your AusBßtoPea, with filtering ι \ uid l) tji aor promotion. Ba Moreover cino Towperaturotiiii: t? Runc «weckp Kxni <» drl can ^ der

B&D ORIGINAL

Ischiufclzvinkonivat limited by the fact that the thermal degradation of the polymer, changes in the average cross-sectional structure, cross-linking of the molecules, are important. or the like, are caused., norrialerweine reads the upper Grcnae dor ΐπηραη door for the "^ rhitzun the vorßtebend mentioned iolyuerisate Lei about 300 ° C. Although the mechanical properties of polymers dee UMOO bceeer be" holier each of the polymers is .olymerinationsgrad deo it iot to Lr3idun, fö.oeri:, en Matorlalö necessary that the Polynerioationograd of; I'olymeripato, ie oeine intrinsic iolcoaität _t ^ eeijjnot is selected.?.

l'aiait that polyrioriout in the proceedings according to dor Brfinduriü vorv.cj! ' , w ^ rdeu küiin _f should »be an ijrtmdmolaro viscosity (^) 0,4G-1, H, v / obei Mio in an Ijo'eung of Hethylejiciilorid (consontrction in i; / 100 ml aua & odrtickt) at 2O ⁰ C _VJ en: eDiio, i \ --'.- 2 "dexi iat.

μ ejitfst · "} ju f-jMier differences in aen nigenoohhaften der sur Ver'voaviun ,: g, Folycarbonato reached due to the sub-division in the"'-ir division of the molecular weights in relation to: ·.! ; 'jcv7oillge: i Uerntolluncoverf.'thron · v / enn li.-iiii'i ·]; uie η> -. (Δ - r; /! lon ^ onverfahron] _A f: r, ^f jcü. "Uten /aingr.ngni'Olycarbonate, ur / nwondung golan ^ en, although these are within the range of" -ui mentioned above , crundmolaren ^Yialco-ait! -tcn (^) ■ forward, 4-0-1,14 are, ir-t it _t vOrzuKle3ien those with hch 311th '.. · I ocular weight on au vonvnnden which a HOE (Ό. ^ Io _t ι -ioi-i 3Vi.ll auiwoiocn, v / imn through the udder «

8C9801 / 0731

Polycarbonato auiri iiinoata produced by the immersion process get "Ia the Praxio weiaen preferred those" v / olcho according to the Iho8genverf & hren hergeatelli, have been, a (^) of 0.75-1 * 00 and those which have been produced by the deu Hateraue immersion process , a ('ξ) of 0.65-0.85.

.! Although dao Uohirielaon dor ^ olyüarbonufco at irgemdeinor 'orwUnßohtoh i'oiaporatur above Doron ühnolapunlcb ₁ UEB, boioplolewoioe Iu in the Ätuoüphiiro a inopton Qr: -tiok-Htoi'i'guB or in ICohleusäurOiäuo, orden auogoi ülirt ^l \ / can , is ea in Hlnoicht on uio iluiditiit ueu geaciimol ^ eiion Materlala odor the iaö ^ licho ^ oraetaun ^ ouor Vorandorunß des

advantageous to use a © 'jJomperatur of 270 ° to 305 ⁰ O in the praktioohon rJurohXlÜirims anauv / öiiden.

Polycarbonate istellon wärmontr ^ bilu i ^J olyiaerisatio; trotadei c-rJfol ^ t im ijesohEiolaüuen: iustarxu normalörweioe in gerinjeia Uinfaiiii Jpttltunt; Your liolekülei thereby orlowed © I dao durchochnittliolio Kolekulurtjewlcht and the products yori'ärbon aich inevitable »Ea Bind therefore the above mentioned points inabeoondercj added, which the polycarbonates for Taaern were rejected, iJolcho Maohteile, like the cleavage dor Llolöklo the pre-coloring, iodooh can be vorhlndert if orthophosphoric acid or a 'uriarylphoaphite in a liengo of about 0p01 - 2.0 öüiV »^ before melting on άαπ polycarbonates

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hliiau ^ oij 2 ben been j οα lrd thereby uon polycarbonates a ·

. "'Urn ο fc u bi 1 it -. B issued.'

ίο v / ird an i-olycü.'bonat with a. (^) from 0.79, which da «ütabiliaioriuiüi.-1-.dttel hinaUjjeiüü-L uria oin ^ etti ^ üht was before, in · ine rrüfirchrc from ^ erin ^ cr üi'üße hiaein, _v et; even and through hrl-.itaen in elnoo Jlbad vv.ihi'ond Z L'lunion uiif 245 ° C _f ; osul: r.iol: "; on. ic YCrIUr uucl the ^ riiadmolure VMsauuit ^ t, v; j lohe in serving pull £ 'finiöß— Ben v / ordou are in the next London i;

Ιε-.bolle 1 Color tint 0.72
0.73 B stabilization
middle salary fSrÜiin ^ ^Or " 0.74
0.75 Or tb.oph.osi Jior-
« ^; ure 0.1 1> koino '/ he 0.69 Triphenylphofl "
phi't bright ^ ib iieiii '. "tj-bilia.Loru:!, ^ -
middle

Aub dexi vorov -hend vviederii9. | Levels ^ rgebniuaea iat er-Biohtlioh, dai3 boi «Jugabe von Orthophoui-horeflur»> dep 't'riphenylphoephit ulu atabilialermittel 2u ion rolyoürbo « grooves in front of dom tjcnnolaen dor Polycarbonato and the Verapia— non au / aaern dio "roraboheml; onannttm Eroer einun ^ en der Verfüroung and the timiedri ^ junti dea durchool ^ iiLfciichen. Mole - kulargev / ichta as a result of the a ^ altun ^ dor i «olekülo decreases

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will. Irinnen ν.ηΛ Faaerri with accurate, physicall »olien blemn-attached preservation.

The threads can also be formed by tearing polymers with a high degree of polymerization, while it is due to the fact that the polymer is then ^! While no polymerisation process has been subjected to, still in. I ^? orn a coRo ^ rolKenen jug is located. Or, the polymer can be spun into threads from small towels or pellets by heat-quickly and then by centrifugation. In any case, it can be: eei .-; netc llinrichtimf zu -vextrusion d «e poly ^r nf ⁵ risata in the climolxenpn 2ußtfifK wnrien vorwondet.

According to the ancestor ^ enäi3 dor F.rfindunfc 'k nnQii also many connections and interials, such in the textile field boVannt nin. : inKU /; e ^ ebe ^v i be, beäepielnveise- any other i-'tfibilioatoron, extruoionehilfoatoffe, Mf ttiorunßr l ", vrolche the L'ifrennchnfton of the Polycrirbonati'aser'i .U'chl affect, but.

Although ^{:, ii n} OWUP the leading executives! nlt <9-

nen Polyc-'rbJ ¹ ! ' ¹ * 'f ^: tlon ^ ißenschafto.i "; ufweif? En, lic her»? Vrr-

in ί'Ρ'ϊΊ '·! < ^: η FHllon without further processing for! r. ^r 'i (j; li-

- 12 -

clien, \ m them üeben excellent Eigensehaften as Paoern KU, ooll a stretching be performed which, when eo erfdßt iot, giving them the necessary characteristics »which their Vcjrwendun ^ alo Fuaern is possible. Although long pre-stretching in the cold state can be used to facilitate the orientation of the molecules of the fuaerciatarialo eu, it should be preferred that the procedure be called 2uuta: id. Uie lower limit in diooeia case reads in UO ⁰ C.

Different from the oekundfiren 1'borganga point of the above _L ; enanate polycarbonates, dor in comparison with other theruioplaijtiachen, uj: nthetiocheu Haraen e «hr high, ie otv / a at HO ⁰ G, the veratstrecken more difficult alö in dei. i? all with ami other -oynthotic pnoermatoi'ialion. " For years there are in liluaiaht on the Verotreckungev / lrkun-i and the tuchiiisehen xroblerae dde the upper limits of the Viiretreckun ^ utt.Ui.eratur at about 160 C. Bae suitable 7eruti."'C:(;]. An _u ^{t3VGi i} ii ^ .ltnio lies at etv / a 2 bio 8 times. Boi a larger Vorvorsrecnung alo the _t ; enaimten the proportniafjo at. dor Vcrtitreoiamc achv / ierig, and although the strength is increased v / t-rlc '- ^ karui, becomes the AbiaaLiue of the Deluiun ,, considerable; such iut unorwüiiucht. AIh /.working methods aajn iirhita · μ köjmcn get lic air, hotter? 'inipi, get surface ci. odci ..r ^ unav / ülche aiidorc-n ijeeiirmjten means z ■ 'Λ. Aj :: i \, z , ·· <la. Jen.

ÖCüöO 1/0731

The stretching according to the thread can be carried out on ends which have been prefeatured after their deformation, or can be carried out in a continuous process immediately after the threads have been formed by extrusion. Pornor lot eu also mu ^ lioh, permanent & corpse ei ti & with dom spinning auuaufUhren "by" increasing the train , both dlo rJini'direction alo auoh the rest of the way "!

Although your success according to the original invention, physical and chemical sigönooliaXbon oinejlioh the heat-lossability, you can get it by simply treating the woven fibers for drying, treating, doubling or treating the material V / ürmeetabllltfit get v / lrd, can dit? ^ Oßponnenoa or veretrocicten fibers with odru · ohn ■ üpannun _{ ; with noticeably liohen sieve doors, at-jpiolaweiöo of about 150 bio 19O ⁰ G, especially Bondore at about 10O ⁰ U, wrriaebo-bundled.

Although the original invention was previously illustrated in connection with the polycarbonate, the main component of which is an ematoral 4> 4 ^f -oxydiphenyl-2,2-propane, iodoch can be found in connection with the ancestor similar procedures can be carried out with those linear polycarbonates that can be spun

809901/0731

and uiiier 7urwouuvuiü / un 4,4 '- ^ lo :: ydiux'yl ~ 2,2 ~ all: aiiun or other litofien ala 4 »4 '~ ^ ioxydiph" ayl-2,2-jjroptaL tile doren, Hauptauöi-anöiiEiulieriul lit - r.juiji.ulli »„ -üx'doii uind,

iiau Juaaruutitjciiil, y / oIoLok,: \ uvli dun /üi'lViir-.u ^ enaüs .elor liri'indutiü ex'liulturi, xra, butii- ^ li iiuL-u '.! or »iiii / oütiondo- TO aiii buuiuiiüoliö 'Jaaai' u »id duruljur IiIhiaU.j alu -« er £ ür diu Vor.r '^ ndunt; uul "uam l'üxtil _c j, ioi j υ iuid vW xl.iolv.ui ₀ ; oo iernar a austsü ^ yiuliaiitu ..... rmoulabili üiii; and i-toßitoi t and Uberlegone ^ igu: iv, oluif« on old »Jaaur i'üx * ΙίοΙΓβη

auX,

^ Le ur £ Ju <lun £ will HiUjLi.iuuiiu.id unluui ^ οInI ₄ Jοf IJoiapiele Nähor erla.utort »

i'OlycarbonatpellQta with a "ξ of ü, üö, wulchee by reaction of 4» 4- ^l -wioxydipi.onyl-2,2-propane with i'hoegen were produced by Irhii-aen to 29O ° C in a otick.itofföteraoophäre ^ uuchinolaen, danaoh by a upinndUae, which was done with a ^ euohnen uf ^ nunüen of 0.2 mm DuroliiuüHuer, in air "xbruu", which are divided into different utrüm einfjoblascn v / urdu ... 'ie aui * DIEA "Weiae formed! • 'aeden wurdon auigewickelt minute to a Jpule in a öeoohwindigkeit of 500 m Jo. the threads were then boei in erhitater air of 95 ⁰ U yinein Veretreckungs- ratio of 1 to 3 veratrocktj s were Paeern with the

809-01 / 0731

- · 15 -

Propertyon received
Unit 75 'Vriior

22 1 *.

:, 'aoLa;.: i üie Paaorη uuler w _a .umum, j, v / v-iterhin Λώτ li behundlun,., at UiO ⁰ O uufcarv.urftin v / ordo / x were, ua ^^ icn the l' aacm u..i \ a ? «i ti & ixit voa '", -, 5 u / u an uad wioi: tiii oine jieh now _u from Mi > j i..ui'. ^ ci · t au ljGuohtt.n, άιΰϊ der l'adeu before C ou / crüt-rccJcen a iüHti ^ iiui ^ voii O ₁ S ^ ^ / d and uine of 150, '

IJin lolyoarljonat with a f «0.67» ',' bIcIigo auo 4 »4'-3>ioxydiplic; nyl-2,2-propane unu Diphenyloarboruxt by EsterauotaUDChreaktioii in Get-oiiv / kind of manganese borate alo catalyst had been horgeHtellt was in the molten state a upinnoinrichtun au _t; Glührt and duroh a Bpinndüee 360 Löcn rn of 0.2 ran lurohmeaoer at 28O ⁰ C. Pieces of "tofi" pressure were extruded. Ijio on these v '/ ee obtained threads were at a speed of 200 m per isocond on a bobbin.

i) ± e Itrrjii " , dir · auo diooen threads had been produced, v, mr v-.i ■ ^r u η in steam of 130 ⁰ C; eo Paoern r.it a: .. Donier τοη! 5 Jo eina ^ laeia ».den, one ci ¹ J VO-, de / d and oinf ¹ :) iilmun _u of 20 f * received.

003SU1 / U731

? They can be curled or heat treated by any conventional method.

Example 5

A polycarbonate with a "0.65" which was obtained from 4f4 · - I> ioxydiphenyl-2,2-buyan and ! Meta cresylocarbonate was spun and drawn in Example 2. In this way, lasers with a strength of 3, 4 g / 4 and an! Elongation of 18? £ obtained «

example 4th

90 'of a powdered polycarbonate old one · »' f» O ₉ 78 «welohea was obtained from 4.4 ^l - ^T ) ioxydiphenyl-2,2-propane * and 10 parts of a powdered polycarbonate with a * * 0.75» which from 4F4 ^l '3) ioxydiphenyl-2 _f 2-pentane was obtained "were" rliitzt and geeohmolisen · the geachmolzene Maeee, which was obtained by stirring and mixing the above-mentioned component · "in a nitrogen atmosphere to 28O ⁰ O was geeponnta and according to Example 2 vtrstreokt} it resulted in pasers "which had a strength of 4.1 g / d and an elongation of 20 $ "

At »giel 5

A powdered polycarbonic with a · »* J« 0 »T7 # we loh ·· by reaction entering 6 liolji 4,4 «-EI-

BATH

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T'469094

oxydiphenyl-2,2-butane and 94 MoIfM- »4'-JJioxydipheny 1-2.2-propane with phosgene, obtained was by" rhitssen to 285 ⁰ C ia eineia Stickstoffgaskreialauf geschoolsen and eztrudiert. The preserved to this Tcise! its original length were threads in heated IUFD of 100 ° C to sweifaohe verstreekt "the strength \ xnä strain -Der- obtained fibers were 2.8 g / d BSSW. JV) '>'

Selepiel 6

Pellets made from a polycarbonate which had been produced from 5 4f4 ^l -Me3Eydiphenyleuli'oa and 95 mol ^ 4t4 "-l" ioxydiphenyl-2j2-propane were subjected to the same treatment as in Example 1 under the same conditions for spia and scattering . The fibers obtained on this wine had a strength of 3 »8 g / d and an» elongation of 19 ^ ·

Example 7

A powdered polycarbonate, which had been produced by the usual process from 96 M 1 # 4 | 4 ^f -oxydlphenyl-2,2- »propane and 4 MoX ^ 4t4 ^f -di» xy-3f5 * -ßUlfondiphenylmethaa, was heated and la an atmosphere of Xohlenoäuregaji at 180 ⁰ C gesohmolaen · Ea were produced therefrom by 35xtruoion of the gesohmolzentn material through a spinneret Padon

809901/0731

forms. The threads were stretched in heated air at a stretching ratio of 1 to 5 at 90 ° C. The resulting carbonate fibers had a strength of ₉ A- g / d and an elongation of 18%.

Example β

97 parts of a polycarbonate in powdered form with a 1 * 0.75 »which was made from 4» 4- ^l -dioxydiphenyl> -2,2-propane, and 3 parts © of a polycarbonate in powdered form, which was made from 4t4'- dioxy-5,3 ^f "was prepared -d.ioarboxydiphenylmethan vmrden, geschmolaen by Srhitzen and then uniformly mixed by stirring. The geeöhmolaune composition was the same spinning and Yeretrokkuttgsliehandlungeii according to Example 7 unterworfenj the resulting fibers had © ine 3? Eötigkölt of 4 * 2 g / d una an elongation of 24 i> on.

Example 9

50 file of a powdered mixed condensate with a T "O _s 75" which is made from 96 MoIfS 4,4 ^f -Uloxydiphenyl-1?, 2-propane and 4 mol $ 4,4 ^l -Bioxy-3 "3'-dioar ¹ boxydiphenylmethRn had been subjected to the same ochmels, Opinn and Yerstreokiings treatments according to Example 5 "The PReern had a strength of 3" 0 g / d and an elongation of 33? ".

809901/0731

10

A polycarbonate with a ^ "Q, 75" which had been obtained by the reaction of 4 # 4 '"- I) iozy diphenyl-2 _f 2-propane xa with phosgene, was heated and melted. Add 0.1 ew. ^C / £ orthophosphoric acid, the molten mass was extruded and subjected to the same spinning and VerotreekungB treatments according Beiepiel 1, lie fibers were obtained having a strength of 4 »5 g / d and an elongation of 20 i» in this way.

Example 1t

A polycrujrbonate is one. T »0.67» \ relches had been obtained by reacting 4 »4'-dioxydlphenyl-2,2-propane with siphenyl carbonate, was still in the molten state immediately after the previous reaction with 0.5 wt. elletically mixed. The pellets were subjected to the same treatments, ie smelting, extruding, spinning and drawing according to Example 2. Fibers were subjected to an accuracy of? _f 9 g / d and an elongation of 20 fs obtained

80990 i / 0731

Claims (1)

3.0 U69094 Claims · 1) Preparation method sur toq Faearaaterial of polycarbonates, dadaroh in that Mm spinning a fiber-forming linear geschaolsenes polycarbonate _t the old 4,4'-Mojcyaiaryl-2,2-alkanoic al "main component 1st synthetically end whose grundaolai * Yiskositat 0 _f 48 to 1.14 offered * «ad then stretched the spun fibers. 2 ') The method of claim 1 * characterized in that old extends ean the spun fibers to a range of 1i2 VerBtreckungSTerhSltais Ie to 1ιβ at a temperature of 60 ° to 160 ⁰ C ^. 3.) Method according to claim 1 or 2 «dadvreh Selehnet that "an a geheolsenes Polycarbo" at the »it 4,4 * -Dio3grdiphenyl * 2,2-i» ropan si «main outlet ■ material is made · # ·) Verfahra according to one "of the claims 1 to 5 _t dsd" recognised that one spins a geechaolsenes Foly & arbe-t τβτ-spinning, ace by Umseteung toä Fhosgeo old A * sfs * csa * terl ~ alies, which 4,4 · -, 2-f> ropeji ice Esje # tbe · contain DloxydipÄen7l-Ä standtell, usd in the presence of a Sfiurvbiodeaittels Lösangemittels is prepared and ve dessesi gumt "olsre Tiskosltat inebeeoedere" inen value · _t O 75-1 ₉ 00 has. 809 ^ 01/0731 5.) Process according to tinea dtx claims 1 to 3, characterized in that aan «la molten polycarbonate is spun, the doroh dl Eaterausauachreaktion of carcassic jeterlallon, which ^{contain 4,4 f} -Dioxydiphenyl-2,2-propen as main constituent, old Kchlensäuredieste manufactured let and whose grundaolav * viscosity liiabeeoiv »dor · has a value of 0.6 Ids 0.85 · 6 ·) TerXahren aaeh »la ·« the claim «1 hi» 3t thereby paid off, AsJ aan one see la smoXssnsn state in the lndllohe Ifisoattng of a polycarbonate, the old 4,4'-9ioci7dipaen7l <-2,2 - propane produced as the main starting material is, or a compound from the group of tri-αJV7lphosphit or orthophosphoric acid is spun 7 ·) Method according to one of claims 1-6 «thereby It is necessary that 0.1 to 2.0% by weight of triphenylphosphine is used or orthophoreous acid as a stabilizing agent of the poly- » eaxBonat or Asa polycarbonates are sugesstst 8 ·) Process aach slnea of the suggestions 1 to 9 · A »" Awrsli sslDtnaselehnet that aan a geechaolsens ttißohunf • let F »] j« arboaa «s _v that sit 4 _t 4 ^t -dioxydiphenyl-2, a-pxopan hST is made , old 2 they 10 wt. * a "Polycarbonate vsjrspinas" Aas aas different * Dioxyrerbindungen ans the group "SMI 4 _t 4'-Dioa ^ lajrylaikensn, * _% * ^$ -J> ioixjalaTjlävlXoB * ti and 4 _t 4 ** Bloaydlarylalkaaen old an acid acid, like elnea OasssogrlMst or * OulXonsänrsjrest, hexgeateilt 1st « 8C9S01 / 0731 1 4 9.) Method according to one of claims 1 to 5 »characterized in that the polycarbonate consists of a ge—« laughing or nischkoadensierten polycarbonato, daa using 4- _t 4 * -Dioacgrdiphenyl-> 2 _f 2 * propane and Z bit 10 percent, # of other Bioxyverblndungon from the group consisting of 4, V-Dioxydiarylalkanün "4.4 ♦ -Diosydiarylaulfonen and 4 _t 4 '' nit Piox7dlarylalkanen a ί murer oat," ie a carboxyl group or oulfontiäurereat is made. 10 ·) Process according to one of claims 1 to 9, characterized in that a molten polycarbonate of the 4 _t 4- ^f "* Blo3grdlphenyl-2 _v 2 * propane" type spun which in its structural unit contains an acid residue from the Has a group of carboxylic acid and sulfonic acid residues and is insoluble in an aqueous alkaline solution 8AD ORIGINAL 809801/0731