CS248293B1 - Method of polyester production with small stress - Google Patents
Method of polyester production with small stress Download PDFInfo
- Publication number
- CS248293B1 CS248293B1 CS833530A CS353083A CS248293B1 CS 248293 B1 CS248293 B1 CS 248293B1 CS 833530 A CS833530 A CS 833530A CS 353083 A CS353083 A CS 353083A CS 248293 B1 CS248293 B1 CS 248293B1
- Authority
- CS
- Czechoslovakia
- Prior art keywords
- hours
- polyester production
- small stress
- πρη
- nph
- Prior art date
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- 229920000728 polyester Polymers 0.000 title claims 2
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 claims 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 claims 2
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 claims 2
- FAPDDOBMIUGHIN-UHFFFAOYSA-K antimony trichloride Chemical compound Cl[Sb](Cl)Cl FAPDDOBMIUGHIN-UHFFFAOYSA-K 0.000 claims 1
- 229930188620 butyrolactone Natural products 0.000 claims 1
- 239000003054 catalyst Substances 0.000 claims 1
- 150000002148 esters Chemical class 0.000 claims 1
- 239000001294 propane Substances 0.000 claims 1
- 239000002904 solvent Substances 0.000 claims 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 235000017399 Caesalpinia tinctoria Nutrition 0.000 description 1
- 238000005684 Liebig rearrangement reaction Methods 0.000 description 1
- 101100227330 Mus musculus Flii gene Proteins 0.000 description 1
- 101100366940 Mus musculus Stom gene Proteins 0.000 description 1
- 241001553014 Myrsine salicina Species 0.000 description 1
- 241000388430 Tara Species 0.000 description 1
- 240000007313 Tilia cordata Species 0.000 description 1
- 101150115538 nero gene Proteins 0.000 description 1
Landscapes
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
- Thiazole And Isothizaole Compounds (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Polyesters Or Polycarbonates (AREA)
Description
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Cnocofi nojTjmeHHH cjioxhmx ποηη3Φηροβ c MajibíM HanpHJfceHneM 2522£I2_2E22222222_222SE2I£222i H3ofipeTeHne othochtch k cnoco6y nojiyneHHH cjiojkhux ποηη3Φηροβ c MajibíM Hanpa-xeHHeM, HMe»mnx nmpoKHň TexHHnecKHH προφκηΒ πρΗΜβΗβΗΗΗ, Ohh MoryT HaňranpHMeHeHne b onranecKoň npoMbinineHHOc™ b xaqecTBe οπτηηθοκη npo3panHbix no-JIHMepHblX φορΜΟΒΟΗΗΗΧ MaTepHajIOB, ΠΟΚρΗΤΗΗ, ΠρβΗΗ3ΗΟΗΗΟΓΟ KJieH HJ1H B KaneCT“fce CTpyKTypHbix KjieeB,Cnocofi nojTjmeHHH cjioxhmx ποηη3Φηροβ c MajibíM HanpHJfceHneM 2522 £ I2_2E22222222_222SE2I £ 222i H3ofipeTeHne othochtch to cnoco6y nojiyneHHH cjiojkhux ποηη3Φηροβ c MajibíM hANP-xeHHeM, HME »MNX nmpoKHň TexHHnecKHH προφκηΒ πρΗΜβΗβΗΗΗ, oh Ballad HaňranpHMeHeHne b onranecKoň npoMbinineHHOc ™ b xaqecTBe οπτηηθοκη npo3panHbix no-JIHMepHblX φορΜΟΒΟΗΗΗΧ MaTepHajIOB, ΟΚ J J J J J J J J J py J py py py py py
XapaKTepHCTHKa H3BegTHbix_ TexHHyecKHX pgmeHHň: flíIH nOnyneHHH CJIOKHblX ΠΟΠΗ3φΗρθΒ (nojlH3CTepHblX 3φΗρθβ) H3BeCTHbI cnOCOfibl,OCHOBbIBaK>mneCH Ha n0jIHMepH3aiíHH ΟΠΗρΟΟρΤΟΒφκρΟΒ. OflHaKO HeflOCTaTKOM ΠρΗ3TOM aBjíaeTca to$ hto npHMeHeHHbie. οπΗροορτο3φπρω npe#CTaBjiHWT cofioň xpuc-TajijnmecKHe coegHHeHHH m noaTOMy hx mojkho nepepafioTaTb tojibko Bbíme tohkhnnaBJíeHHH. Ha βτογο b KaqecTBe flajibHeňmero HeflocTaTKa BbiTexaeT, ίτο neofi-XOgHMO rtpH6aBJlHeMblň flJIH ΗΗΗΗΗΗρΟΒΗΗΗΗ nojMMepH3aUHH HHHUHaTOp ΠΡΗ 3THX ΤβΜ“nepaTypHbix ycjiOBHHX πρΗΗΗΗΗβτ Majiy» CTafiHJiifHocTb npn xpaHeHHH cMecn moho-ΜβροΒ η τβΜ caMbiM cjáiniKOM κοροτκΗβ BpeMeHa fljia TiepepafioTKH. flanbiue H3Bec-TeH cnocofi, npH κοτοροΜ TpHOKcaH HaxoflHT npHMeHeHne Kax coMonoMep h pacT-BopHTejifc fljia οήΗροορτο3φΗροΒ (naTeHT JP -65_3708; cp. h C.A. 63, 11732h{(1965)). OflnaKO Ηβηοοτβτοκ πρκ stom 3aKjnoHaeTCH b tom, ητο πρκ πομοπιη hc-nojibáoBaHHoró KaK KaTajra3aTop nojmMepH3anHH BFj-Et^O gocTHraeTCH jnmb bw-XOfl nojiHMepoB b 40%.XapaKTepHCTHKa H3BegTHbix_ TexHHyecKHX pgmeHHn: fliIH nOnyneHHH CJIOKHblX ΠΟΠΗ3φΗρθΒ (nojlH3CTepHblX 3φΗρθβ) H3BeCTHbI cnOCOfibl, OCHOBbIBK> meCH Ha n0jIHMepH3aiíHH ΟΠΗρΟΟρΤΟΒφκρΟΒ. OflHaKO HeflOCTaTKOM ΠρΗ3TOM aBjíaeTca to $ hto npHMeHeHHbie. οπΗροορτο3φπρω npe # CTaBjiHWT cofioň xpuc-TajijnmecKHe coegHHeHHH m noaTOMy hx mojkho nepepafioTaTb tojibko Bbíme tohkhnnaBJíeHHH. Ha βτογο b KaqecTBe flajibHeňmero HeflocTaTKa BbiTexaeT, ίτο neophyl-XOgHMO rtpH6aBJlHeMblň flJIH ΗΗΗΗΗΗρΟΒΗΗΗΗ nojMMepH3aUHH HHHUHaTOp ΠΡΗ 3THX ΤβΜ "nepaTypHbix ycjiOBHHX have πρΗΗΗΗΗβτ» CTafiHJiifHocTb NPN xpaHeHHH cMecn they may ΜβροΒ η τβΜ Cambio cjáiniKOM κοροτκΗβ BpeMeHa fljia TiepepafioTKH. flanbiue H3Bec-TeH cnocofi, npH κοτοροΜ TpHOKcaH HaxoflHT npHMeHeHne Kax coMonoMep h pacT-BopHTejifc fljia οήΗροορτο3φΗροΒ (naTeHT JP -65_3708; cp. h C.A. 63, 11732h {(1965)). OflnaKO Ηβηοοτβτοκ πρκ stom 3aKjnoHaeTCH b tom, ητο πρκ πομοπιη hc-nojibáoBaHHoró KaK KaTajra3aTop nojmMepH3anHH BFj-Et ^ O gocTHraeTCH jnmb bw-XOfl nojiHMepoB b 40%.
BnpóqeM b jiHTepaType H3BecTHbi flBa βπΗροορτοοφΗρβ cjiefly»meň φορΜνπΗ:BnpóqeM b jiHTepaType H3BecTHbi flBa βπΗροορτοοφΗρβ cjiefly »me φορΜνπΗ:
Ch2 C \/° /c\Ch2 C / ° / c
0 CH R4 a 1 R R4 H H b H CHjCl CH; ( iCH2 248293 2 KOTOpwe npH cŤaHflapTHferx ycnoBHHX jkh/jkh (Liebigs Ann. Chem, 623, 183, (1959); J. Polytn. Scí., Polyro. Lett. J_8, 1. 25, (1980)). Osuško επκροορτο-3φκρ a HMeeT Ηεοοετετοκ', hto oh upeaBbraaHHo γηγροοκοπηηημη, BcnencTBHeqero, KaK h3bectho, 3HawnTem>HO BO3MymaeTC« κητηοηηηη nojiHMepH33HHH c pac-KpbiTHeM UHKjia h tojibko bo3hhk3k>t nojiHMepbi HH3Koň MoneKynapHoň Maccw. CnHpo-Ορτθ3φκρ b XOTH HBJIHeTCH npOCTO MaHHnyjIHpyeMblM, OflHaKO κβτηοηηηβ nOJlHMepH-3au,HH c pacKpbiTHeM pHKjia co3flaeT npobjíeMbi ποτομυ, hto BcjieflCTBne peaKTHB-hocth xjiopMerajihHoň rpynnbi npOHCXOflHT peaxuHH obpbiea neneft η περε3ετερΗφΗ-Kau,HH, BCjieflCTBHe nero Βθ3ΗΗΚ3ΐοτ tojibko ojmroMepbi, OKpameHHbie b xejiTbiňHBeT. ÍÍ3BGCTGH H ňajIBHeHinHH JKHflKHH εΠΗρθΟρτΟ3φπρ, nOJJHMGpH3yiMHHňca ΤερΜΗ-HGCKH-paflHajlBHblM Η ΚβΤΗΟΗΗΗΜ ΟΠΟΟΟβοΜ Η ΠρΗ KQTOpOM B BbllDG Η33Β3ΗΗθίί φθρ-Myjie R’/R2 npaflCTaBjíeH rpynnoň -CH2 (πετεΗτ JP -121584-79; DE-OS 3035431).OflHaKo b 3tom cjiynae cymecTBeHHMH HGflOCTaTok. aaKjnonaeTcn b tom, mto npe-BpaUIGHHG ΜΟΗΟΜερΟΒ ΠρΗ IIOJIHMepH3HnHH TOJIBKO ΟΗβΗΒ MajlO , T3K MTO HCnOjlh3O-BaHHG nojiyHBHHoro cjiojkhoio ποπΗ3φΗρ3 BQ3MOJKHO tojibko nocjie omhctkh nepe-ocaxneHHeM.CH 4 R 4 and R 1 R 4 H H b H CH 3 Cl CH; (iCH2 248293 2 KOTOpwe npH cHflapTHferx ycnoBHHX jkh / jkh (Liebigs Ann. Chem, 623, 183, (1959); J. Polytn. Sci., Polyro. Lett. 18, 1. 25, (1980)). 3φκρ and HMeeT Ηεοοετετοκ 'HTO oh upeaBbraaHHo γηγροοκοπηηημη, BcnencTBHeqero, KaK h3bectho, 3HawnTem> HO BO3MymaeTC «κητηοηηηη nojiHMepH33HHH c pac-KpbiTHeM UHKjia h tojibko bo3hhk3k> t nojiHMepbi HH3Koň MoneKynapHoň Maccw. CNHP-Ορτθ3φκρ b XOTH HBJIHeTCH npOCTO MaHHnyjIHpyeMblM, OflHaKO κβτηοηηηβ nOJlHMepH -3au HH c pacKpbiTHeM pHKjia co3flaeT npobjíeMbi ποτομυ, HTO BcjieflCTBne peaKTHB-hocth xjiopMerajihHoň rpynnbi npOHCXOflHT peaxuHH obpbiea neneft η περε3ετερΗφΗ-Kau, HH BCjieflCTBHe Nero Βθ3ΗΗΚ3ΐοτ tojibko ojmroMepbi, OKpameHHbie b xejiTbiňHBeT. ÍÍ3BGCTGH H ňajIBHeHinHH JKHflKHH εΠΗρθΟρτΟ3φπρ, nOJJHMGpH3yiMHHňca ΤερΜΗ-HGCKH- paflHajlBHblM Q ΚβΤΗΟΗΗΗΜ ΟΠΟΟΟβοΜ Η ΠρΗ KQTOpOM B BbllDG Η3 3Β3ΗΗθίί φθρ wash-R '/ R2 npaflCTaBjíeH rpynnoň -CH2 (JP πετεΗτ -121584-79; DE-OS No. 3,035,431) .OflHaKo b 3tom cjiynae cymecTBeHHMH HGflOCTaTok. AaKjnonaeTcn b that MTO NPE-BpaUIGHHG ΜΟΗΟΜερΟΒ ΠρΗ IIOJIHMepH3HnHH TOJIBKO ΟΗβΗΒ majli, T3K MTO HCnOjlh3O-BaHHG nojiyHBHHoro cjiojkhoio ποπΗ3φΗρ3 BQ3MOJKHO tojibko nocjie omhctkh nepe-ocaxneHHeM.
Bce H3BGCTHbie cnupoopTo3φκρω HMeiOT COBMeCTHbIH npH3Hax, MTO nOjmMGpHaaiJHHnpoHcxoflHT c ohghb MajibíM oÓBGMHbíM cxaTHGM (cyMMbi o6meň ycaflKH C 0,5 flO M3KC<2%). BbI3BaH BblPIG OnHCHHHblMH H BbITBKaiOmHMH H3 φΗ3ΗΗεεΚΗΧ H XHMHMeCKHXCBoňcTB, a Tarae H3 ycnoBHň πρη ρεβκιρίΗ ΗεβοετετκεΜΗ, cymocTBeHHbiň Hefloc-T3TOK ypOBHft TGXHHKH 33KJH0HaeTCH Β TOM, MTO flO CHX ΠΟρ HGBO3MO3CHO 6bUIO TeXttHMeCKH HCnOJlb3OBaTb BaXHblň 3φφθΚΤ nOJIHM8pH3aiJHH C MajIblM OÓBGMHblM CMa-THGM ϋΠΗρθθρτθ3φΗρθΒ flJIH nOJiyHGHHH CJlOXHblX ΠΟίΙΗΒφΗρΟΒ C MajIblM ΗΗΠρίΒΚεΗΗεΜΗ HX ΠρΗΜβΗΘΗΗΗ B K3HGCTBG nOJJHMGpHblX φορΜΟΒΟΜΗΜΧ Ma TepnaJIOB HJIH KJIGGB. HGJIb H3OfípGTGHHH :Bce H3BGCTHbie cnupoopTo3φκρω HMeiOT COBMeCTHbIH npH3Hax, MTO nOjmMGpHaaiJHHnpoHcxoflHTc ohghb MajibiMBbMHbM cxaTHGM (cyMMbi o6men ycaflKH C 0.5 flO M3KC <2%). BbI3BaH BblPIG OnHCHHHblMH H BbITBKaiOmHMH H3 φΗ3ΗΗεεΚΗΧ H XHMHMeCKHXCBoňcTB and Tara H3 ycnoBHň πρη ρεβκιρίΗ ΗεβοετετκεΜΗ, cymocTBeHHbiň Hefloc-T3TOK ypOBHft TGXHHKH 33KJH0HaeTCH Β TOM MTO Flo CHX ΠΟρ HGBO3MO3CHO 6bUIO TeXttHMeCKH HCnOJlb3OBaTb BaXHblň 3φφθΚΤ nOJIHM8pH3aiJHH C MajIblM OÓBGMHblM CMa-THGM ϋΠΗρθθρτθ3φΗρθΒ flJIH nOJiyHGHHH CJlOXHblX ΠΟίΙΗΒφΗρΟΒ C MajIblM XΠρίΒΚεΗΗεΜΗ HX ΠρΗΜβ ΗΘΗΗΗ B K3HGCTBG nOJJHMGpHblX φορΜΟΒΟΜΗΜΧ Ma TepnaJIOB HJIH KJIGGB. HGJIb H3OfípGTGHHH:
JlejIBlO ,ηΗΗΗΟΓΟ Η3θ6ρεΤβΗΗΗ HBJIHeTCH npeOflOJieHHe HOflOCTaTKOB ypOBHS TeXHHKH.JlejIBlO, ηpe f3θ6ρεΤβΗΗΗ HBJIHeTCH npeOflOJieHHe HOflOCTaTKOB ypOBHS TeXHHKH.
B naCTHOCTH OHGHB MajlOe OfiBBMHOe CXaTOe ΠρΗ nOJIHMBpH3apHH εΠΗρΟΟρΤΟΒφΗρΟΒCJÍGflyGT TéXHHHGCKH HCHOJlB3OBaTB flJIH nOJiyHeHHH CJIOSKHBIX ΠΟΠΗ3φΗρθΒ C MajIblM • HanpHWeHHGM, npHHGM OflHOBpGMGHHO C.JIGflyGT 06eCneMHTb 6OJIbHiyi0 CTaSHJIBHOCTBnpH ΧρΗΗβΗΗΗ HCXOflHOH CMGCH MOHOM6pOB flO HeKOTOpbIX HěflejIB H BO3MO3KHyM B TBX“HOjIOTHHeCKOM OTHOIUGHHH flOjiryW 3CH3H8CnOCO6H0CTB fíO 3 flHéň. KpOMG ΤΟΓΟ ΠρΗΧΟ“flHTca ycTpaHHTB ΓΗΓροεκοπΗΗΗοετΒ εηΗροορτθ3φΗρθΒ h flocTHHB nojiHoro npeBpa-meHHH MOHOMGpOB ΠρΗ OflHOBpGMBHHO BblCOKHX MOJTeKyjIHpHbtX MaCC3X. B COOTBGTCT“BHH C nejlbio nOJiynaeMblG CJlOMHbie Π0ΠΗ3φΗρΜ flOJDXHbl 6bITB nOjníOCTBIO 6ecyBeTHbIMHη οπτΗπεεκΗ npO3paMHHMH. H3JlO»GHHe CymHOCTH_H3O6gGTGHMH2 fljiH pGajiH3au;HH nejm 3anaMa naHHoro Η3ο6ρετεΗΗ« - yKaeaTB cnocoC, πρ« πομο- íihh KOToporo BO3MOOTO noflBepraTB nojiHMGpH3aHHH npocTO MaKHnyjiHpyeMbie, CTa- 1ÓHjibHbie h jierKo nojryMaeMbie επκροορτοΒφΗρΜ o6pa3ya cjioxhmg ποβηβΦηρμ c MajibíMHanpaweHHGM.B naCTHOCTH OHGHB MajlOe OfiBBMHOe CXaTOe ΠρΗ nOJIHMBpH3apHH εΠΗρΟΟρΤΟΒφΗρΟΒCJÍGflyGT TéXHHHGCKH HCHOJlB3OBaTB flJIH nOJiyHeHHH CJIOSKHBIX ΠΟΠΗ3φΗρθΒ C MajIblM • HanpHWeHHGM, npHHGM OflHOBpGMGHHO C.JIGflyGT 06eCneMHTb 6OJIbHiyi0 CTaSHJIBHOCTBnpH ΧρΗΗβΗΗΗ HCXOflHOH CMGCH MOHOM6pOB FLO HeKOTOpbIX HěflejIB H BO3MO3KHyM TBX B "HOjIOTHHeCKOM OTHOIUGHHH flOjiryW 3CH3H8CnOCO6H0CTB FIO 3 flHéň. KpOMG HT ΠρΗΧΟ “flHTca ycTpaHHTB floροεκοπΗΗΗοετΒ εηΗροορτθ3φΗρθΒ h flocTHHB nojiHoro npeBpa-meHHH MOHOMGpOB ΠρΗ OflHOBpGMBHHO BblCOKHX MOJTeKyjIHpHbtX MaCC3X. B COOTBGTCT “BHH C nejlbio nOJiynaeMblG CJlOMHbie Π0ΠΗ3φΗρΜ flOJDXHbl 6bITB nOjníOCTBIO 6ecyBeTHbIMHη οπτΗπεεκΗ npO3paMHHMH. H3JlO »GHHe CymHOCTH_H3O6gGTGHMH2 fljiH pGajiH3au; HH NEJM 3anaMa naHHoro Η3ο6ρετεΗΗ« - yKaeaTB cnocoC, πρ «πομο- íihh KOToporo BO3MOOTO noflBepraTB nojiHMGpH3aHHH npocTO MaKHnyjiHpyeMbie, CTa- 1ÓHjibHbie h jierKo nojryMaeMbie επκροορτοΒφΗρΜ o6pa3ya cjioxhmg ποβηβΦηρμ MajibíMHanpaweHHGM C.
CornacHO Η3θ6ρετεΗΗΚ» aaflaqa pemaeTCH cboco6óm nojiyneHHH cjioambix ποιπϊβΦηροβC MajIblM HanpHXeHHeM H3 εΠΗρθθρΤΟ3φκρθΒ, OTJTHHaiOnpiMCH TGM, MTO SyTHpOJiaKTOHH H3O6yTHΙΙΓJIHUHnOBblfí 3φΗΡ B MOJIBHOM COOTHOmGHHH 1 S 1 flO 2í 1 B TBTpaXJTOpMGTa“hg b KanecTBe pacTBopHTGna πρκ 30eC Β τεπβΗΗβ 5 qacoB b npHcyTCTBHH BFyEt^Ob KanecTBe KaTajra3aTopa npGBpa®a»T β επκροορτο3φΗρ 2-H3o6yTHJioKCHMGTHn--1.4.6-TpHOKca-cnHpo- [4.4] -HOHaH. llojiytieHHblft TaKHM O6pa3OM 2-H3O6yTHJIOKCH“MGTHJI-1 .4.6-TpHOKca-cnHpo- [4.4] - HOHaH flajiBine cornacHO Η3θ6ρετεκΗΐο ποηΗΜερκ-syeTca hjih oahh hjih c flojiaň ρ,ρ 30 mojibhmx npoyeHTOB pacTBopennoro b hgm h _ 248293 3 nojiynaeMoro no DD-WPC 08G/234816-5 2,2-6hc-(1.4,6-TpnoKca-cnnpo- [4.AJ-ho-HaH-2-ΜβτΗηοκοΗφθΗΗπ)-nponaHa b npucyrcTBHH Et}O+SbCl~ b KOjinnecTBe c 1 Bec.%p;o 3 Bec.% othochtgjibho KojnmecTBa cnupoopTOBíJiHpa npn 80 ,π,ο 100°C b Te4e-HHe 6 no 8 qacoB, lípu stom cnoco6e cornacno n3o6peTeHwo fiocraraeTCH CTa-BHJIhHOCTh npn ΧρβΗβΗΚΗ HCXOflHOň CMeCH MOHOMepOB, COCTaBJIHHMuaH ΗβΚΟ TOpbieHeflenu, 6ea Tóro, utoGm BCTpenajmcb BbineneHHH KpHCTannoB híih flpyrne noMyT-HeHHHj JícxoflHbie MOHOMepbi h cMecn MOHOMepOB He rnrpocKonnHHbi. Wn3Hecnoco6-HocTb HcxoflHOň CMeCH nojinMepn3aijnH cocTaBJíaeT Gojihwe 72 nacoB, BpeMH rene-o6pa3OBaHH« npH 100 G Bce eme okojio 1 qaca, IIojiHMepH3 aipin προΗοχορ,ΗΤ npnnOJIHOM npeBpaníGHHH MOHOMepOB Η ΠρΗΒΟβΗΤ K BblCOKHM MQneRynHpHbtM MaccaMCJ10»HbIX Π0ΠΗ3φΗρ0Β, KOTOpbie ΚρΟΜβ ΤΟΓΟ nojIHOCThlO GeCUBeTHbl Η ΟΠΤΜΗβΟΚΗnpo3paHHM. OG^ee o6f>eMHoe cxame bo apeMH rejieo6pa30BaHHH η οπιηβθηηη b 3a-BHCtoMOCTH OT COOTHOmeHHň ΚΟΜΠΟΗβΗΤΟΒ CMeCH MOHOMepOB COCTaBJIHeT 1 flO 1,6%,nonyneHHbie thkhm ofípaaoM cnoatHbie ποπηβΦηρμ ημθιοτ Manoe HanpaaceHHe h ohhthGkh b nmpoKoň oGnacra TeMnepaTyp. Ohh HenyBCTBHTenbHbí κ o6pa30BaHHio mhk-pOTpemHH h ycToňnHBbi κ pe3KOMy H3MeHeHHro TeMnepaTypbi, Hanp, b oGnacra c-40°G «o +80°C,CornacHO Η3θ6ρετεΗΗΚ »aaflaqa pemaeTCH cboco6óm nojiyneHHH cjioambix ποιπϊβΦηροβC MajIblM HanpHXeHHeM H3 εΠΗρθθρΤΟ3φκρθΒ, OTJTHHaiOnpiMCH TGM MTO SyTHpOJiaKTOHH H3O6yTHΙΙΓJIHUHnOBblfí 3φΗΡ B MOJIBHOM COOTHOmGHHH 1 S 1 Flo 2f 1 B TBTpaXJTOpMGTa" hg b KanecTBe pacTBopHTGna πρκ 30eC Β τεπβΗΗβ 5 qacoB b npHcyTCTBHH BFyEt ^ ble KanecTBe KaTajra3aTopa npGBpa®a »T επκροορτο3φΗρ 2-H3o6yTHJioKCHMGTHn - 1.4.6-TpHOKca-cnHpo- [4.4] -HOHaH. llojiytieHHblft TaKHM O6pa3OM 2-H3O6YTHJIOKCH “MGTHJI-1 .4.6-TpHOKca-cnHpo- [4.4] - HOHaH flajiBine cornacHO θ3θ6ρετεκΗΐο ποηΗΜερκ-syeTca WPC 08G / 234816-5 2,2-6hc- (1,4,6-TpnoKca-cnnpo- [4.AJ-h-HaH-2-β-bicyclic) -nponaHa b npucyrcTBHH Et} O + SbCl-b KOjinnecTBe c 1 Bec. % P; 3 Bec.% othochtgjibho KojnmecTBa cnupoopTOBíJiHpa npn 80 π, ο 100 DEG C. b Te4e-HHE 6 no 8 qacoB, linden one hundred meters cnoco6e cornacno n3o6peTeHwo fiocraraeTCH CTA-BHJIhHOCTh NPN ΧρβΗβΗΚΗ HCXOflHOň CMeCH MOHOMepOB, COCTaBJIHHMuaH ΗβΚΟ TOpbieHeflenu, 6ea toro , uTGM BCTpenajmcb BbineneHHH KpHCTannoB hih flpyrne noMyT-HeHHHj JxxoflHbie MOHOMepbi h cMecn MOHOMepOB He rnrpocKonnHHbi. Wn3Hecnoco6-HocTb HcxoflHOň CMeCH nojinMepn3aijnH cocTaBJíaeT Gojihwe 72 nacoB, BpeMH rene-o6pa3OBaHH «NPH 100G BCE EME okojio 1 qaca, IIojiHMepH3 aipin προΗοχορ, ΗΤ npnnOJIHOM npeBpaníGHHH MOHOMepOB Η ΠρΗΒΟβΗΤ K BblCOKHM MQneRynHpHbtM MaccaMCJ10» HbIX Π0ΠΗ3φΗρ0Β, KOTOpbie ΚρΟΜβ ΤΟΓΟ nojIHOCThlO GeCUBeTHbl Η ΟΠΤΜΗβΟΚΗnpo3paHHM . OG ^ ee o6f> eMHoe CXAM Bo apeMH rejieo6pa30BaHHH η οπιηβθηηη 3a-b BHCtoMOCTH OT COOTHOmeHHň ΚΟΜΠΟΗβΗΤΟΒ CMeCH MOHOMepOB COCTaBJIHeT 1 Flo 1.6% nonyneHHbie thkhm ofípaaoM cnoatHbie ποπηβΦηρμ ημθιοτ Mano HanpaaceHHe h ohhthGkh b nmpoKoň oGnacra TeMnepaTyp. Ohh HenyBCTBHTenbHb κ o6pa30BaHHio mhk-pOTpemHH h ycToňnHBbi κ pe3KOMy H3MeHeHHro TeMnepaTypbi, Hanp, b oGnacra c-40 ° G o + 80 ° C
OriTHHecKHe fleTaroi H3 cTexna, cKneeHHbie πρκ noMonpt cnocoGa cornacHO H3o6pe-TeHHto, Ka*K jihh3H, nnocKHe nnacTHHbí h nonoGHbie onranecKHe fleTajiH npH kom-HaTHoft TeMnepaType MexaHHUecKH HepašteMHbi. B cnynae HeoGxonHMoera hx mojkhopa3fceflHHHTh HarpeBaHHeM n° 150 C b TeneHHe HecKOjibKHX MHHyT ηπη oGpaGoTKOHΚΗΠΗΒΙΗΜ ΧίΙΟροφορΜΟΜ. ” IIpUMepM KOHKpeTHOrO BbinonHeHHHlOriTHHecKHe fleTaroi H3 cTexna, cKneeHHbie πρκ noMonpt cnocoGa cornacHO H3o6pe-TeHHto, Ka * k jihh3H, nnocKHe nnacTHHbi h nonoGHbie onranecKHe fleTajiH npH com-HaTHoft TeMnepaType MexaHHUecKH HepashteMHbi. B cnynae HeoGxonHMoera hx mojkhopa3fceflHHHTh HarpeBaHHeM n ° 150 C b TeneHHe HecKOjibKHX MHHyT ηπη oGpaGoTKOHΚΗΠΗΒΙΗΜ ΧίΙΟροφορΜΟΜ. ”IIpUMepM KOHKpeTHOrO BbinonHeHHH1
HaoGpeTeHHe nonpoGnee noncHneTCH πρκ πομοπιη cnenywmHX npHMepoa κοΗκρετΗο-ΓΟ BbinOJTHeHHH . ΠρΗΜβρ 1. 172 r (2 mojih) GyraponaKTOHa pacTBOpniOT b 600 mji TeTpaxnopMeTaHa h cMenm-BawT c 6 mji BF?· Et40. ΠρΗ nepeMemHsaHHH floSaBnaioT no xanjiHM 260 r (2 Monb)H306yTHJirjIHlWJ0B0r0 θφκρβ ΠρΗ 30°C B ΤβΗβΗΗβ 2 HaCOB, 3βΤβΜ flaiOT BO3MOJK“HocTb flonojiHHTenbHoň peaKUHH b TeueHHe 3 uacoB h CMemHBaiOT c 300 mji 10%-noro NaOH ívih τογο, htoGm pa3pymHTb xaTajiH3aTop,HaoGpeTeHHe nonpoGnee noncHneTCH πρκ πομοπιη cnenywmHX npHMepoa κοΗκρετΗο-ΓΟ BbinOJTHeHHH. ΠρΗΜβρ 1. 172 r (2 mojih) GyraponaKTOH pacTBOpniOT b 600 mji TeTpaxnopMeTaH cMenm-BawT c 6 mji BF? Et40. ΠρΗ nepeMemHsaHHH floSaBnaioT well xanjiHM 260 r (2 Monbat) H306yTHJirjIHlWJ0B0r0 θφκρβ ΠρΗ B 30 C 2 ΤβΗβΗΗβ Hacoba, 3βΤβΜ flaiOT BO3MOJK "HocTb flonojiHHTenbHoň peaKUHH b TeueHHe 3 uacoB CMemHBaiOT c h np 300 10% NaOH -nor ívih τογο, htoGm pa3pymHTb xaTajiH3aTop,
OpraHHMecKyw φββγ οτηβΠΗίοτ, cymaT c K2G03 h flHCTHJumpyioT. CHanana ynanaioTpacTBopHTejib, ποτομ ocTaTOK φpaκ^HOHHpywτ b BaxyyMe. nonynawT 250 r cnnpo-ορτθ3φπρβ 2-H3o6yTHjiOKCHMeTHji-l .4,6-TpHOKca-cnHpo-[4.4^j-HOHaH b xanecTBenpo3paqnoň xhakocth. ŤoMKa ΚΗπεΗΗΒί 72 no 74°C/33 MÚa ='»1,4438; p10 =c 1,0383 r· cm’5 C « H20()4 BbWHcjieHo: C 61,09% H 9,32% (216,24) HaňnóHo: C 60,93% H 9,39%OpraHHMecKyw φββγ οτηβΠΗίοτ, cymaT c K2G03 h flHCTHJumpyioT. CHanana ynanaioTpacTBopHTejib, ποτομ ocTaTOK φpaκ ^ HOHHpywτ b BaxyyMe. nonynawT 250 r cnnpo-ορτθ3φπρβ 2-H3o6yTHjiOKCHMeTHji-1,4,6-TpHOKca-cnHpo- [4.4] -HOHaH b xanecTBenpo3paqn xhakocth. 72 ° C 74 ° C / 33 ° C = 1.4438; p10 = c 1.0383 r · cm cm5 C «H20O () 4BbWHcjieHo: C 61.09% H 9.32% (216.24) Hanone: C 60.93% H 9.39%
OflHHaKOBbie pe3yjibTaTbi nojiynaioTca h npn Hcnonb3OBaHHH 130 r (1 mojib) hso-GyTHJirjlHUHnOBOrO 3φΗρΒ,OflHHaKOBbie pe3yjibTaTbi nojiynaioTca h npn Hcnonb3OBaHHH 130 r (1 mojib) hso-GyTHJirjlHUHnOBOrO 3φΗρΒ,
B 10 r 2-H3o6yTHjiOKCHMeTHJi-l .4.6-TpHOKca-cnHpo-[4,4j-HOHaHa npH 40 ρ,ο 50°CnpH nepeMeiuHBaHHH pacTBopaioT. 0,1 r EtjO ' SbClé , 3τβ roTOBaa κ ynoTpeGneHHioHcxo/jHan cMecb nojiHMepH3an,HH b 3axpbiTOM cocyne cnocoGHa κ πρημθηθηημ 3 ηΗΗh nojiHMepMsyeTCH npri 100°C b TeneHHe 8 nacóB b 33κρητομ Φορμοβοηηομ cocynehjih khk KJieeBoíí cnoň Me»ny onrayecKHMH fleTajwMH o6pa3yn GeciíBerabiň, onra-MecKH npo3panHbiň cnoxHbiň ποηποφηρ c MajibíM HanpnweHHeM oGmeň φopMyπbI (-CHj-CHj-CHj-C-O-CH-CHj-O)- / 0 CH, O-CHj-CHÍCH,)* 248293 4 rp,e n=10 po 15 h ofimaa oGbeMHaa yca^Ka cocTaBJíaeT 1,6%.B 10 r 2 -H 6 O 6 Y thiOCHCH 2 MeHi 1 -1.4.6-TpHOKca-cHpo- [4,4j-HOHaHa npH 40 ρ, 50 50 ° CnpH nepeMeiuHBaHHH pacTBopaioT. 0.1 EtjO r 'sbcl, 3τβ roTOBaa κ ynoTpeGneHHioHcxo / Jhana cMecb nojiHMepH3an HH b 3axpbiTOM cocyne cnocoGHa κ πρημθηθηημ 3 ηΗΗh nojiHMepMsyeTCH NPRI 100C TeneHHe b 8 b nacóB 33κρητομ Φορμοβοηηομ cocynehjih KHK KJieeBoíí cNon = Me »NY onrayecKHMH fleTajwMH o6pa3yn GeciíBerabiň, onra-MecKH npo3panHbi cnoxHbiň ποηποφηρ c HanpnweHHeM oGmeň φopMyπbI (-CHj-CH 1 -CH 3 -CH-CH-CH 3 -O) - / 0 CH, O-CH 3 -CH 2 CH 2, * * 248293 4 rp, en = 10 after 15 h ofimaa oGbeMHaa and yca1a cocTaBaiaeT 1.6%.
TeMnepaTypa cTeKjioBaHHH (T8) cnoiHor.o nojin9<i>npa cocTaBJíaeT -35 C, ero πηοτ- hoctb - p2° = 1,055 r · cm~ . ngHMeg_2CTeKjioBaHHH (T8) cnoiHor.o nojin9 <i> npa cocTaBJiaeT -35 C, ero πηττακτbβ - p2 ° = 1.055 r · cm.. ngHMeg_2
PacŤBop 20,506 r (0,04 Mojib) 2,2-6hc-(1 .4.6-TpnoKca-cnnpo- [4.4]-ηοη8η-2--MeTHjioKCH(beHHJi)-nponaHa - nonyneHHoro no DD-WP C 08G/234816-5 - b 25,95 r(0,12 MOjib) 2-H3o6yTHJioKCHMeTHJi-l .4.6-TpHOKca-cnnpo- [4.4]-HOHaHa - nonyneH*Horo KaK yKaaaHo b npHMepe 1 - CMeraHBaioT c 0,75 r Et}Ó SbClfi. íÍHHixuaToppacTBopaioT npH 40.flo 50°C h nepeMeniHBaHHH h HcxoflHaH cMecb nonHMepH3auHHJOKpaiueHHaa b ^ejiTbiň η,Ββτ, KOTopaa πρκ κομη3τηοη teMnepaType b 3εκρ«τοΜ co-cy#e coxpaMeT cnocofíHocrb κ npuMeHeHHW b Tenemie HecKonbKHX flHeň, 3aTeMnonnMepH3yeTCH npH 100°C b Tepejme 6 nacOB b, 33κρμτομ φορΜΟΒΟΗΗΟΜ cocy^eHnu Kax KJieeBOň cnoň MexKfly οπτΗηεοκκΜΗ fleraňaMH. Bo3HHKHyTbiň cnoacHbiň nojiH-ΟφΗρ - fíeCUBeTHbIH Η OnTHHéCKH npO3paHHbIH. IljIOTHOCTb COCTaBJÍHeT p10 = = 1,117 r · cm' i . O6ntaa oSbeMHaa yca^Ka bo BpeMH npouecca nonHMepH3anHH coc-TaBJíaeT 0K0.n0 1%. $opMyna_H3o6geTeHHaPacŤBop 20.506 r (0.04 Mojib) 2.2-6hc- (1 .4.6-TpnoKca-cnnpo- [4.4] -ηοη8η-2 - MeTHjioKCH (beHHJi) -nponaHa - nonyneHHoro no DD-WP C 08G / 234816- 5 - b 25,95 r (0,12 MOjib) 2-H3o6yTHJioKCHMeTHJi-1 .4.6-TpHOKca-cnnpo- [4.4] -HOHaHa - nonyneH * Horo KaK yKaaaHo b npHMepe 1 - CMeraHBaioT c 0,75 r Et} . íÍHHixuaToppacTBopaioT NPH 40.flo 50 ° C h h nepeMeniHBaHHH HcxoflHaH cMecb nonHMepH3auHHJOKpaiueHHaa b ^ η ejiTbiň, Ββτ, KOTopaa πρκ κομη3τηοη teMnepaType b 3εκρ «τοΜ what e-tsa # coxpaMeT cnocofíHocrb κ npuMeHeHHW b Tenemie HecKonbKHX flHeň, 3aTeMnonnMepH3yeTCH NPH 100C b Tepejme 6 nacOB b 33κρμτομ φορΜΟΒΟΗΗΟΜ Coca-eHnu Kax KJieeBOň cNon = MexKfly οπτΗηεοκκΜΗ fleraňaMH. Bo3HHKHyTbiň cnoacHbiň nojiH-ΟφΗρ - fíeCUBeTHbIH Η OnTHHéCKH npO3paHHbIH. IljIOTHOCTb COCTaBJÍHeT p10 = 1.117 r · cm-i. O6ntaa oSbeMHaa YCA ^ Ka bo BpeMH npouecca nonHMepH3anHH coc -TaBJíaeT 0K0.n0 1%. $ OpMyna_H3o6geTeHHa
Cnoco6 nonyneHHH cnoatHbix ποπΗ3φΗροΒ c MajibíM HanpnxceHHeM H3 οπκροορτο3φΗροΒ,OTnunaEiinHHCH τθμ, ητο npeepamaroT SyraponaKTOH h Η3ο6γτΗπΓΠΗφί#θΒΜΗ 3φκρ bMonbHOM cooTHomeHHH lil p;o 2:1 b TeTpaxnopMeTane b KanecTBe pacTBOpuTenHπρκ 30*0 b TeneHne 5-ňacoB b npHcyTCTBHH BFj/EtjO b KanecTBe KaTanH3aTOpah Tax nonyneHHbifí 2-n3o6yTH.noKCHMeTH.n-l .4.6-TpnoKca-cnnpo- [4.4] -ηοηθη ποπη-MepH3yeTCH ηπη ο^ηη ηπη c. floneň no 30» MonbHbix npoiíeHTOB pacTBOpeHHoro bΗΘΜ 2,2-6hC~(1 ,4.6-TpHOKCa-cnHpO-[4.4^-ΗΟΗ3Η-2-ΜβΤΗηθΚΟΗφβΗΗη)-ΠρθΠ3Η3 BnpHcyTCTBHH Et^O^SbClg b KojmecŤBe c 1 Bec.% po 3 Bec.% OTHOCHTenbHO ko-nHnecTBa οπΗροορτοΒφκρβ πρκ 80 po 100 C b TeneHHe 6 flo 8 nacOB,Cnoco6 nonyneHHH cnoatHbix ποπΗ3φΗροΒ c MajibíM HanpnxceHHeM H3 οπκροορτο3φΗροΒ, OTnunaEiinHHCH τθμ, ητο npeepamaroT SyraponaKTOH h Η3ο6γτΗπΓΠΗφί # θΒΜΗ 3φκρ bMonbHOM cooTHomeHHH lil p; about 2: 1 b TeTpaxnopMeTane b KanecTBe pacTBOpuTenHπρκ 30 * 0 b TeneHne 5 ňacoB b npHcyTCTBHH BFJ / EtjO b KanecTBe KaTanH3aTOpah Tax nonyneHHbif 2n3o6yTH.noKCHMeTH.nl .4.6-TpnoKca-cnnpo- [4.4] -ηοηθη ποπη-MepH3yeTCH ηπη ο ^ ηη ηπη c. -TpHOKCa-cnHpO- [4.4 ^ -ΗΟΗ3Η-2-ΜβΤΗηθΚΟΗφβΗΗη] -PρθΠ3Η3 BnpHcyTCTBHH Et ^ O ^ SbClg b CoBe c 1 Bec.% By 3 Bec. nacOB,
AHHOTan,KHAHHOTan, KH
Cnoco6 nonyneHHB cnoxHbix ποπηβΦηροβ c ManbíM HanpHaceHHeM. Uenb Η3θ6ρετεΗΗΗ -TexHHnecKH Hcnonb3OBaTb oneHb Manoe oCteMKoe cxaTHe επΗροορτοοφΗροΒ flnanonyneHHn cno«Hbix ποηΗ3φκροΒ c ManbW HanpH»eHHeM H36eraa κεηοετετκοΒ πρκH3BecTHbJX flO CHX ΠΟρ ΠΟΠΗΜερΗ33Ι(ΗΗΧ 0ΠΗρθθρΤΟ3φΗρθΒ. 3aflana - yKa3aTb cnoco6, npH noMonm κοτοροΓ.ο bO3mo®ho no/jBepraTb nonHMepn-3auHH προοτο MaHHnynHpyeMbie, CTa6HnbHbie h nerKO nonynaeMbie οπΗροορτο3φΗρωo6pa3yn cnoxHbie ποηκΒφΗρΜ c ManbíM HanpaxeHHeM pemaeTca τβΜ, ητο 2-H3o6yTHn-OKCHMeTHn-1,4.6-TprtOKca-criHpo-[4.4]-HOHaH, nonyneHHbiň H3 6yTHponaKTOHa hH3o6yTHnrnHu;HflOBoro Βφκρε, nonHMěpH3yeTCH ηπη ο«ηη ηπη, c floneň po 30 μοπβ-HblX npOHeHTÓB 2,2-6hC-(1 .4.6-TpHOKCa-cnHpO- [4.4]-ΗΟΗέΗ-2-ΜβΤΗΠΟΚΟΗφβΗΗπ)-nponaHa b npHcyTCTBHH EtsO+SbClg. IIonyneHHbie cornacHO η3ο6ρθτθηηκ> cnoxHbieΠΟΠΗ3ΦΗΡΜ MOryT HHňTH ΠρΗΜΘΗβΗΗβ B OIJTHHeCKOň ΠρθΜΜΙΠΠ6ΗΗΟΟΤΗ B KaHeCTBeonranecKH npo3panHbix nojiHMepHbix φορΜΟΒΟΗΗΗΧ MaTepHHjiOB, npeuH3HOHHoro Kneaηπη b Kanec Tne cTpyKTypHbix KneeB. IIpH3HaHO Η3θ6ρβΤβΗΗβΜ ΠΟ pe3ynhTaTaM 3KCnepTH3Wt OCymeCTBneHHOň BeflOMCTBOMno p;enaM Η3θ6ρβτεΗΗϋ h naTeHTOB PflP. 248293Cnoco6 nonyneHHB cnoxHbix ποπηβΦηροβ c ManbiM HanpHaceHHeM. Uenb Η3θ6ρετεΗΗΗ -TexHHnecKH Hcnonb3OBaTb oneHb Mano oCteMKoe cxaTHe επΗροορτοοφΗροΒ flnanonyneHHn CNO «Hbix ποηΗ3φκροΒ c ManbW HanpH» ehhe H36eraa κεηοετετκοΒ πρκH3BecTHbJX FLO CHX ΠΟρ ΠΟΠΗΜερΗ33Ι (ΗΗΧ 0ΠΗρθθρΤΟ3φΗρθΒ. 3aflana - yKa3aTb cnoco6, NPH nomon κοτοροΓ.ο bO3mo®ho NO / jBepraTb nonHMepn-3auHH προοτο MaHHnynHpyeMbie, CTa6HnbHbie h sockeye nonynaeMbie οπΗροορτο3φΗρωo6pa3yn cnoxHbie ποηκΒφΗρΜ c ManbíM HanpaxeHHeM pemaeTca τβΜ, ητο 2-H3o6yTHn OKCHMeTHn-1,4.6-TprtOKca-criHpo- [4.4] -HOHaH, nonyneHHbiň H3 6yTHponaKTOHa hH3o6yTHnrnHu; HflOBoro Βφκρε, nonHMěpH3yeTCH ηπη ο «ηη ηπη, c floneň 30 μοπβ-HblX npOHeHTÓB 2,2-6hC- (1 .4.6-TpHOKCa-cnHpO- [4.4] -ΗΟΗέΗ-2-ΜβΤΗΠΟΚΟΗφβΗΗπ) -nponaHa b npHcyTCTBHH EtsO + SbClg. IIonyneHHbie cornacHO ΠρΗΜΘΗβΗΗβ B OIJTHHeCKOň Πρθ ΜΜΙΠΠ6ΗΗΟΟΤΗ B KaHeCTBeonranecKH npo3panHbix nojiHMepHbix φορΜΟΒΟΗΗΗΧ MaTepHHjiOB, npeuH3HOHHoro Kneaηπη b Boar Tne cTpyKTypHbix KneeB. IIpH3HaHO Η3θ6ρβΤβΗΗβΜ ΠΟ pe3ynhTaTaM 3KCnepTH3Wt OCymeCTBneHHOň BeflOMCTBOMno p; Enami Η3θ6ρβτεΗΗϋ naTeHTOB PFLP h. 248293
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DD24033182A DD208468A3 (en) | 1982-06-01 | 1982-06-01 | METHOD OF MANUFACTURING VOLATILE POLYESTERETHER |
Publications (2)
Publication Number | Publication Date |
---|---|
CS353083A1 CS353083A1 (en) | 1985-06-13 |
CS248293B1 true CS248293B1 (en) | 1987-02-12 |
Family
ID=5538945
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CS833530A CS248293B1 (en) | 1982-06-01 | 1983-05-19 | Method of polyester production with small stress |
Country Status (4)
Country | Link |
---|---|
BG (1) | BG42587A1 (en) |
CS (1) | CS248293B1 (en) |
DD (1) | DD208468A3 (en) |
SU (1) | SU1451144A1 (en) |
-
1982
- 1982-06-01 DD DD24033182A patent/DD208468A3/en not_active IP Right Cessation
-
1983
- 1983-04-26 SU SU837772942A patent/SU1451144A1/en active
- 1983-05-06 BG BG6086183A patent/BG42587A1/en unknown
- 1983-05-19 CS CS833530A patent/CS248293B1/en unknown
Also Published As
Publication number | Publication date |
---|---|
SU1451144A1 (en) | 1989-01-15 |
DD208468A3 (en) | 1984-05-02 |
CS353083A1 (en) | 1985-06-13 |
BG42587A1 (en) | 1988-01-15 |
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