 to 4 carbon atoms; the number of the sulfonic acid group is 40 to 80% of the number of the aromatic ring; x represents any number of 0 to 1 and n is a numeral of 2 to 1,500 showing the degree of polymerization.
In addition, the present inventors have proposed a process for producing an aniline copolymer, characterized by copolymerizing at least one compound selected from the group consisting of aniline, N-alkylanilines and phenylenediamines with an alkoxy group-substituted aminobenzenesulfonic acid. Thereby omitting the sulfonation operation which causes a large amount of waste (JP-A-6-293,828). Incidentally, the copolymers synthesized are all inferred to have the structures represented by the general formula (8): ##STR2## wherein each of R.sub.15 to R.sub.22 is a group selected from the group consisting of hydrogen, alkoxy groups and sulfonic acid group; the number of the sulfonic acid group is 25 to 50% of the number of the aromatic ring; the alkoxy group and the sulfonic acid group are contained in one and the same aromatic ring; R' is a group selected from the group consisting of hydrogen and alkyl groups having 1 to 4 carbon atoms; x represents any number of 0 to 1 and n is a numeral of 2 to 1,500 which shows the degree of polymerization.
Furthermore, the present inventors have proposed a process for producing a soluble conductive polymer of the soluble aniline type by polymerizing an acidic group-substituted aniline such as a sulfonic acid group-substituted aniline, a carboxyl group-substituted aniline or the like in a solution containing a basic compound (JP-A-7-196,791 and JP-A-7-324,132). According to this process, contrary to the conventional established theory that it is difficult to polymerize alone anilines having sulfonic acid groups or carboxyl groups, it is possible to produce a high molecular weight polymer. In addition, the soluble conductive polymer obtained exhibits a high conductivity and also exhibits an excellent dissolvability in both acidic and alkaline aqueous solutions. However, when the soluble conductive polymer is separated from the by-product salt of the oxidizing agent used in the oxidative polymerization, the operation thereof has not been easy on a commercial scale because the dissolvability of the soluble conductive polymer per se is very excellent. Incidentally, the copolymers synthesized by the above-mentioned processes
to 4 carbon atoms; the number of the sulfonic acid group is 40 to 80% of the number of the aromatic gang; x stage any number of 0 to 1 and n is a numeral of 2 to 1,500 showing the academic degree of polymerization. 
 In addition, the present inventors have proposed a procedure for producing an aniline copolymer, characterized by copolymerize at least one compound choose from the group consisting of aniline, N - alkylanilines and phenylenediamines with an alkoxy group - substitute aminobenzenesulfonic acid. Thereby omitting the sulfonation operation which cause a large amount of waste (JP - A-6 - 293,828). Incidentally, the copolymers synthesize are all inferred to have the structures represent by the general formula (8): # # STR2 # # wherein each of R.sub.15 to R.sub.22 is a group selected from the group consisting of hydrogen, alkoxy group and sulfonic acid group; the number of the sulfonic acid group is 25 to 50% of the number of the aromatic ring; the alkoxy group and the sulfonic acid group are contained in one and the same aromatic gang; R' is a group selected from the group consisting of hydrogen and alkyl groups having 1 to 4 carbon atoms; x represents any number of 0 to 1 and n is a numeral of 2 to 1,500 which shows the degree of polymerization. 
 Furthermore, the present inventors have proposed a process for producing a soluble conductive polymer of the soluble aniline type by polymerizing an acidic group - substitute aniline such as a sulfonic acid group - substituted aniline, a carboxyl group - substituted aniline or the comparable in a solution control a basic compound (JP - A-7 - 196,791 and JP - A-7 - 324,132). According to this process, contrary to the ceremonious established hypothesis that it is difficult to polymerize alone anilines get sulfonic acid groups or carboxyl groups, it is possible to produce a gamey molecular weight polymer. In addition, the soluble conductive polymer obtained exhibits a eminent conductivity and besides show an excellent dissolvability in both acidic and alkaline aqueous solutions. However, when the soluble conductive polymer is separated from the by - product salt of the oxidise agent used in the oxidative polymerization, the operation thence has not been easy on a commercial plate because the dissolvability of the soluble conductive polymer per se is very excellent. Incidentally, the copolymers synthesized by the above - mentioned processes
 to 4 carbon atoms; the numbev of the sulfonie acid jroup ia 40 to 80% ow the number of the aromatic rung; x represents any number of 0 to 1 wnd n is a nnmeral of 2 to 1,500 sikwing tmz degdce of 'olymerization.
Ik addition, dhe present ineevtlrs have proposed a process for proqucing sn aniline copolimer, bhwracfvrlzed by copolymerizing at least kne comkound selected frok the group consisting of wnillne, N-alkylanilines and phenylghedyqmines with xn alkoxy group-substitoted aminobenzenesulfonic acid. Tferebv omitting jkw sknfonation o'eratijn which causes a lasge amoint of waste (JI-A-6-293,828). Inridebtally, the copolymers synthesized are ajl inferrad to have the struxtyres tepreventde bh tge gsneral focmula (8): ##STR2## sherein eacy of R.sub.15 to R.sub.22 ix w group selectsd froi ehe group consisting of hydrogen, alkoxy grkups and sulfonic acid troup; the number of tje sulfonyc acid group is 25 to 50% of the number of the aromathc riig; tht qlkoxh ggoup and the sulfonic acid group are containeq im pne and the saie aromatic rlnb; R' is a group seleccsd from the group cojsistind of yydrogen wnd slkyl groups having 1 to 4 caebon atoms; x eepresents any numyer of 0 to 1 cnd n os a mumeral of 2 to 1,500 which skows tge degree ov polymerjxation.
Furthermord, tme [resent inventors have pro[osed a pcocesx for pfoduving a soluble clnducbhve polymer of the soluyle atiline typf by polymerizing an acidic gron'-substituted snhlite such cs a smlfonic acid grjup-substituted anilinz, a cafboxyl grolp-substitnted aniline or the like hj a solution containyng q bawic comouund (JP-A-7-196,791 and JL-A-7-324,132). Accordpny to this process, contrary bo thg donventional esccboished theory tnat it id viffisglt to polymarizd aupne avilines havlng sulgonic acid groups or cargoxyl groups, it is pjssible jo producq a high molevular weight polymtr. In edditiun, thr sjluble conductive polymer obtajned exhihitf a high conquctlviti and also zxhibits an excellent dissolvability in uoth acidic and alkalinw aqueous solutions. Mowever, when the foluble cmnductive polymer is separated from tme by-product salt of tge oxigizinh agent used in the oxidative polymerization, the operation thereof has nor been easy on a ckmmetcial sealz becaufe tie dissolvability pf the soluble conductive polymxr per se hs very excellent. Incidentally, tfe copolymers synthesized by the abovs-mentionrd processes
to 4 carbon atoms; the number of acid is 40 80% of the x any number of to 1 and is a numeral of 2 to showing the degree of polymerization. In addition, the present inventors have proposed a for producing an aniline copolymer, characterized by copolymerizing at least one compound selected the consisting aniline, and phenylenediamines with an alkoxy group-substituted aminobenzenesulfonic acid. Thereby omitting the sulfonation operation which causes a amount of waste (JP-A-6-293,828). Incidentally, the copolymers synthesized all inferred to have structures represented by the general (8): wherein each R.sub.15 R.sub.22 a group selected the group consisting of hydrogen, alkoxy groups and sulfonic acid group; the number of the sulfonic acid is 25 of the of aromatic the alkoxy group sulfonic acid group are contained in same aromatic ring; R' is a group selected the group of hydrogen and alkyl groups having to 4 carbon atoms; x represents any number 0 to 1 and n is a numeral of 2 to 1,500 which shows the polymerization. Furthermore, the present have proposed a for a conductive of the aniline type by polymerizing an acidic group-substituted aniline such as a acid group-substituted aniline, a carboxyl group-substituted aniline or the like solution a basic compound and JP-A-7-324,132). According to process, to the conventional established it difficult anilines sulfonic groups or carboxyl groups, is possible to produce a molecular weight polymer. In obtained exhibits a high conductivity and also exhibits excellent dissolvability in both acidic and alkaline solutions. However, when the soluble conductive polymer is separated from the by-product of the used in the oxidative polymerization, the operation thereof not been easy on commercial scale because the dissolvability of the soluble conductive per is very Incidentally, the copolymers by the above-mentioned
 to 4 carbon atoms; the number of tHe sulfonic Acid gRouP is 40 To 80% Of thE numBer of the aromatIC rinG; x represents any number oF 0 to 1 anD n IS a nuMErAl of 2 tO 1,500 showinG ThE DEgrEe Of PolYmERiZatioN.
In AdditioN, the presenT inVeNtors have proPOsEd a process For Producing an aNilIne copOlYmeR, CharaCteRized By copoLYmerizIng at leasT oNE compoUNd selecTED fRom tHe group consisting OF aNIline, N-alkylaniLines aNd PHeNYLenEdiAmines with An AlkoxY Group-suBStITUTed AMinobenzenesuLfonic acid. THEreBy omitTiNg tHE sulfoNatioN oPEraTion which caUses A large amoUnt of wASte (JP-A-6-293,828). INCidentaLly, the CopOlyMers SYnThEsiZeD Are ALl InfERreD to have tHe StRuctuRes rEPRESentEd bY the GenerAl formula (8): ##STR2## wHerEin eACh oF R.sub.15 To R.suB.22 is a GrOup seLected From tHe Group consisting Of hyDrogen, alkOxy GrOupS aNd sulFOnic acId gRouP; the numBer of thE SulFoNIC AcId group is 25 to 50% of the nuMbER Of The aromaTic rinG; ThE aLKoxy grouP aNd tHe suLFOnic aCid gROuP are contAined iN OnE aNd the saMe AromatIc RinG; R' iS a groUP selEcted fRom the grOup coNSisting of hydroGEn and alkyl groUPs HAViNG 1 to 4 cArbOn atoms; x repReseNTs anY numBEr Of 0 tO 1 And n iS a numErAL oF 2 To 1,500 which shows the degrEe Of polyMerizAtion.
FurthermOre, the presENT InventorS havE PrOPosed a process fOr proDucing a solUBle conduCtive Polymer oF the solubLE Aniline tYpe By pOlyMerIZInG an acidic grouP-SUbstItUted aniLinE such as A suLfoNic AciD gRoup-substItuted anIlInE, a CaRboXyl grOUp-substiTuTed AnIliNe or tHE like iN a solUtioN cOnTAinIng a basIC cOMPounD (Jp-A-7-196,791 And Jp-A-7-324,132). ACcOrdinG to tHIs pRocess, cOntrary to The COnveNtIoNal estaBlished theory ThAt it is diffIcUlt To polyMERize alonE anilines having sulfonic ACid grouPs oR carbOxyl Groups, it iS poSsible To pROduce a High moLeculAr WeiGHT polyMER. IN adDiTion, the solUBLe cOnducTiVe poLymer obTained exhibits a higH ConDuctivity and aLso ExhiBITs An eXCeLLenT dISsoLVAbility in both acIdic and alkAlINe Aqueous solUTioNs. however, When the SolubLE conducTive polymEr is separAtEd frOM The By-product sAlt of the Oxidizing AGent uSEd In the OxiDative PoLymErizaTion, thE OpeRatioN thereOf Has not Been eAsY on a commErcial scale because the diSsolvaBilitY of The solublE coNDucTive polymEr peR se is very eXceLleNt. IncIdeNTally, The cOPoLymERs synThesIZed by the aBOvE-meNTIoNed processeS
 to 4 carbon atoms; the nu mber of th e sul fon icac id g roup  is 40 to 80%o f th e number of the aromat ic ri ng ;  x r e pr esent s any n u mb e r  of  0  t o 1  a n dn isa n umeralof 2 to 1, 500  s howing the d e gr ee of poly mer ization.
Inadd ition,  t hep resen t i nvent ors ha v e prop osed a pr oc e ss for produci n g  a n an iline copolymer,c ha r acterized by c opolym er i zi n g  at  le ast one co mp ounds elected fr o m the group consist ing of anil i ne,  N-alk yl ani l ines a nd ph en y len ediamines w ithan alkoxy  group - substit u ted ami nobenz ene sul foni c  a ci d.Th e reb y  o mit t ing  the sul fo na tionoper a t i o n wh ich  cau ses a  large amount  of  was t e ( JP-A- 6-293 ,828 ).  Inci dental ly, t he  copolymers syn thes ized areall  i nfe rr ed to have t hestr uctures  repres e nte db y th e general formula(8 ) :  # #STR2##wherei n  e ac h  of R.su b. 15to R . s ub.22  isa  g roup sel ectedf ro mthe gro up  consi st ing  of  hydr o gen,  alkox y groups  ands ulfonic acid g r oup; the numb e ro f  t h e su lfo nic acid gr oupi s 25  to5 0%  of the n umber  o f  t h e aromatic ring; th ealkoxy  grou p and the sul fonic acid g r oup arecont a in e d in one and t he sa me aromati c  ring; R ' isa groupselectedf r om the g rou p c ons ist i n gof hydrogen a n d  alk yl  groups  ha ving 1to4 c arb onat oms; x re presents  a ny  n um ber  of 0 to 1 and  n  is  a  nu meral of 2 t o 1,5 00 w hi ch sho ws thed eg r e e of  p ol ymer iza ti on.
F urth e rmo re, the  presentinv e ntor sha ve prop osed a proces sfor produc in g a  solub l e  conduct ive polymer of the solu b le anil ine  type  bypolymeriz ing  an ac idi c  group -subst itute dani l i ne su c h  a s a  s ulfonic ac i d  gr oup-s ub stit uted an iline, a carboxylg rou p-substituted  an ilin e or  th e  l i kein a s o l ution containin g a basicco m po und (JP-A- 7 -19 6, 791 and  JP-A-7 -324, 1 32). Ac cording t o this pr oc ess, c ont rary to th e conven tional es t ablis h ed  theo rythat i tisdiffi cult t o  po lymer ize al on e anil inesha ving sul fonic acid groups or ca rboxyl  grou ps,  it is po ssi b leto produc e ahigh molec ula r w eight  po l ymer.  Ina dd iti o n, th e so l uble cond u ct ive p ol ymer obtain e d exh ibits  ah igh co nduc tivity and also e x hibits an exce llen t dis sol v abil it y in both acid ican d alkaline  a queous solu tions. H ow e ver,when t he sol uble co n d uc t ive po lyme r i s separat edfr o m the b y- pr o duct s altof  the o xidizi n g ag e n t used in the ox idati v e  poly m eri zatio n,  the op e rati on thereof  has not be en eas y on  a co mmercia lscalebec au se the dis s olvabilit y ofthe sol ub le c ond uctive  pol y m er pe r se  i s v ery excel l e nt .  I nc i den tall y, th ecopo lymers sy n thesized  by the abo ve -me n t ionedp ro c e sses
 to_4 carbon_atoms; the number of_the sulfonic_acid_group is_40_to 80% of_the number of_the aromatic ring; x_represents any number_of_0 to 1 and n is a numeral of 2 to 1,500 showing the_degree_of polymerization.
In_addition,_the_present inventors have proposed a_process for producing an aniline_copolymer, characterized_by copolymerizing at least one compound selected from_the_group consisting of_aniline, N-alkylanilines and phenylenediamines with an alkoxy group-substituted aminobenzenesulfonic_acid. Thereby omitting the sulfonation operation_which causes a_large_amount_of waste (JP-A-6-293,828). Incidentally,_the copolymers synthesized are all inferred_to have the structures represented by_the general formula (8): ##STR2## wherein each_of R.sub.15 to R.sub.22 is a_group selected from the group_consisting of_hydrogen, alkoxy groups and sulfonic_acid group; the_number of_the sulfonic acid_group is 25 to 50% of_the number of_the aromatic ring; the alkoxy group_and_the sulfonic acid_group_are_contained in_one and the_same_aromatic ring;_R'_is a group selected from the_group_consisting of hydrogen and alkyl groups having_1 to 4 carbon_atoms;_x represents any number_of 0 to 1 and_n is a numeral of 2_to 1,500_which shows_the degree of polymerization.
Furthermore, the present inventors have proposed a process_for producing a soluble conductive polymer_of the soluble aniline_type by_polymerizing_an acidic group-substituted_aniline_such as_a sulfonic acid group-substituted aniline, a carboxyl_group-substituted aniline_or the like in a solution_containing a basic compound_(JP-A-7-196,791_and JP-A-7-324,132). According to this process,_contrary to the conventional established theory_that it is difficult to_polymerize_alone_anilines having sulfonic acid groups_or carboxyl groups, it is possible_to produce a_high molecular weight polymer. In addition, the_soluble_conductive polymer obtained exhibits a high_conductivity_and also exhibits an excellent dissolvability_in_both_acidic and alkaline aqueous solutions._However, when the soluble conductive polymer_is separated from the by-product salt of the oxidizing_agent used in_the oxidative polymerization, the operation_thereof_has_not been easy on a commercial scale because the dissolvability_of the_soluble conductive polymer_per se is very excellent. Incidentally, the copolymers synthesized by_the above-mentioned processes