CS251655B1 - Cold binder for casting molds and cores - Google Patents

Abstract

The solution relates to foundry and solves the problem of processing a binder for a cold-curing mixture, capable of maintaining highly stable properties during long-term storage. The presented binder contains a synthetic resin and a silane as a stabilizing additive, which is a compound with a hydrocarbon radical having a branched structure and 5 to 10 carbon atoms, with a component ratio of synthetic resin 99.0 to 99.8 wt. % and silane 0.2 to 1.0 wt. %.

Description

AND

SaHBneHo: 29.10.79 'JaaBKa: Ν' 2835312 / 22-02 MKlP B 22 C 1/22 '

Abtopli: IKyKOBCKHH C.C., Pomsiukhh B.H., BepHbnueB E.A., BéjiHKÓBa 3.B., rioMepanyeBaΜ.Μ., Ky3Heaop JI., Phbkhh C.H., BoňaexoBnn A.M.,

Hko6coh B.B., HbiraHKOBa H.B., Kpoab EBTeesa C.A., Xa3OBa Η.Π. 3aHBHTfijib: HaynHo-npon3BoaCTBeHHoe oSteanHenne no TexHOJiornn MamuHocTpoeHHfl ( "HHHHTMAUJ") rocyflapCTBeHHbiň HaynHO-HCCjie, noBaTejibCKHň HHCTHTyTχημηη η τθχηοπογηη SJíeMeHTOpraHHHecKnx Coe nnHeHHH (rHHHXTDOC)

Ha3BaHHe Η3θ6ρετβΗΗΗ: 0ΒΗ3ΥΜ! 1ΕΕ flJIfl Η3Γ0Τ0ΒΠΕΗΗΛ JMTEÍÍHblX CTEPJKHEřt Η Φ0ΡΜ, OTBEFJKflAEMMX B XOJlOflHOft OCHACTKE H3o6peTeHne othochtch to the & nacTn JiHTeňHoro nponsBoacTBa xacaeTcn CBH3yroine N-ro ^ iyiH xono HOTBepaeiomeH CTEP »HeBoň nnn ΦορμοβοηηοΑ CMeCH. B HacTonmee BpeMH ana n3roTOBjjeHHH jiHTeňHbix and φορΜ. CTepwHeft Hamjin ripHMeHeHnexonortHOTBepaeiomne cMecn, coaepjKanpie b KanecTBe cBH3yromero φβΗοηο-φορΜΒηΒΛθΓΗΑ-Hbie, μοηθβηηο- $ opManbaerHa, Hbie, φypaHOBbIe CHHTeTHuecKne streaks HanpnMep, / pnaCTaJlbHOrO JIHTbH ΠρΗΜβΗΗΙΟΤΟΗ CMeCH, CBH3yi0mHMH B KOTOpbIX CJlyWaT φεΗΟΠΟ-φορΜΗΒΒ —Nern / jHbie HO lo-a a a a OB OB OB OB oj oj (1) flUH ÓĎecneMeHHH HeoOxO ^ VHMbK npOHHOCTHbIX CBOňCTB pacxofl CMOJlbl B 3THX CMeCBXcocTaBjiaeT 2-3 Mac.7 », ητο πρΗΒο ^ ητ κ ýxyanieHHK! caHHTapHo — rnrHeHHnecKHX ycnoBHnTpyaa ri κ beicokoh ctohmocth cMecn. fljia ycTpaHeHHH sthx .HeaocTaTKOB npHMeHjnoTcaΜΟ ^ ΗφΗΚΘΤΟρΜ CMOJl-CHJiaHbr, nO3BOJIHK> mHe IIOJiyHHTb TpeSyeMbie npOHHOCTHhie CBOHCTBanpn MeHbiueM coaepacaHnn b cmcch CBH3yioniero.

HanSonee 6jih3khm to onucbiBaeMOMy Η3θ6ρετβΗΗΚ) n TexHnnecKOH cymHocra h aocra-raeMOMy pe3yjihTaTy ηβηηθτοη CBHSyioiuee, BKjrnonaiomee CHHTeTnnecKyro Cmon ποηηκοη-rtěHcan, HOHHoro nuia h CHnaH c o6neft (JwpMyaoň R (GH 2) n Si (OR11) 3, rac "η" οτ 1ao 3-R'- peaKpnoHHocnocoSHaa yHKUHOHajibHaH rpynna, οΟηηηο cBasannaa c βτομημηκρβΜΗΜΗ nepe3 aJiKHJibHyio PENB, HanpnMep, προπη, πβΗΟΒΕίΗ paflHKan (CH3) 7, and R11 -yrneBo / íopoaHbiň paaHxan c mhcjiom θτομοβ yraepóaa οτ 2 and 3 (2).

KojmnecTBo TAKORA cnnaHa, ββοαημογο b CMOay λπη μο ^ ηΦμηηροβηηηη, cocTaBnaeT0,2-1,0% οτ Bec cmojih, fljIH CBH3ywmHX Ha OCHOBe φβΗΟ.ΠΟ-ί ^ ^ ρ3ΗΟΒΜΧ HJIH MOHeBHHO ypaHOBHX CMOJ1 HCnOJIb "3yeTca CHJiaH c ^ yHKHHOHanbHoň áMUHorpynnoft (. NHi), HanpnMep, and -εΗοη-φγρβΗο- 251655 2 ΒΟΗ CMQJlbl HCnOJIb3yK) T 0.5-1.0% (θΤ Beta CMOJlb1) rMMa ~ aMHHOnponHJ1TpH9TOKCHJiaHaNH2 (CH2) * Si (OCj, Hj)? And JMA φβΗ ^ ιο-φορΜθηΒΑείΉΑΗΒΐχ cmoji -cnnaH c-non φεκοκοητργπ (CgHjOJ; HanpHMep, / μη φεΗοη-φορΜηηΕΑίεΓΗ, φίοή CMonw HcnonbaywT 0,2-0,5% (OT Bec CMOjjbi) Ramm eHOKCHnponHnTpn3TOKCnnaHa ^ - CfcH50 (CII2) 3 Si (OC2H5) 3. CB »3yiomee, ΜΟΑΗφΗρΗροΒβΗΗοβ yKa3aHHbiMH CHJiaHaMH, HMeeT orpaHHneHHbiň cpoxxpaHewHá H3-3a rnapojmaa CHJiaHa b Cmon. BcneACTBHe rnflponH3a well Mepe xpaneroiHCHHMaeTCH and 3aTeM nojinocTbio iicne3aeT ΜΟ ^ ΗφΗΐριργιοπϊΗΗ 3φφεκτ, το ecTb yMeHbmaer-ca nponHocTb CMecH. HosTOMy BBerteHHe cHJianoB not 6οτβ ocymecTBneHo to 3 a-BO ^ ax, npOH3BO, HamHX CMOJlbl KpOMe ΤΟΓΟ, H3-3a ΠΟΤερΗ ΜΟ ^ ΗφΗΡΗΡΥΚΙΠίεΓΟ Βφφβκτβ BTeneHHe 5-6 AHen, BO3HHKaeT HeoÏxo ^ HMOCTb b nacTbix npHroTOBneHHnx hto cnHxaeT npoH3BO, 4HTenbHocTb Tpy.ua, πρηβοαητ κ rtonojiHHTejibHbíM 3Hepro-3arpaTaM h ysejiHnHBaeT pacxoA CHnaHa, -

OnTHMajIbHMM MO5KHO CHHTaTb TaKyW npO ^ OJiatHTeJlbHOCTb COXpaHeHHH ΜΟ ^ ΗφΗΐρΐργΚ, ηίΗΧCBoňCTB cnnaHa, xoTopan 6w coBnajiana c jKH3Hecnoco6HocTbio cmojiw, cocTaBJunomeftot 3 and 6 MecaééB.

UeJIblO Η3θ6ρετβΗΜΗ HBJIHeTCH nOBblmeHHe CTaČHJIbHtiCTH CBH3ywmHX CBoňCTB, ΜΟΑΗφΗΓUHpoBaHHo ň ia oj oj oj oj oj oj em em em em em em em em em em em em em. / LNA tfocTHweHHH nocTaBneHHoíi foam CBH3yioiUee απη H3roTOBJieHna jmTeňHbix crepxHeňΗ φορΜ, OTBepiKjjaeMbix b χοηο ^ Ηοή OcnacTKe, BKjnonawmee CHHTeranecKyio Cmon noJW "KOHrteHcauHOHHoro early hours cnnaH, conepxHT b xanecTBe eunaHa coeflHneHHe c o6meííφορΜγηοϋ R 1 (CH?) H Si (OR) 3, engraves" n "Neno HHcno οτ 1 40 3 R - φβΗοκοΗ Γργππβ-R - ^ ANIR araHecKHii yrneBOAopoAHbiH pajjHKan c uncnoM aTOMOB yrnepofla rt 10h 5 flo c pa3BeTBneHHoň CTpyxTypoň πρκ cneflywmeM cooraomeHHH HHrpeflHeHTOB (b noMacce%) CHHTeranecKaH Cmon nojiHKOHfleHcaflHOHHóro early -99 , 0-99.8 cnNH ynoManyToro CTpoeHHH - 0.2-1.0.

CBH3ywmee no n3o6peTeHHio coflepxHT b KauecTBe cnnaHa ynOMHuyToro CTpoeHHS raMMa-ýeHOKCHnponHnTpHH3aMnnoKCncnnaH hjih raMMa ^ eHOKCHnponHnTpn (6eTa-3ranreK-ciwokch) CHnan. B xanecTBe cHHTeranecKon cMonw cBH3yioinee no H3o6peTeHHw coflepKHT TepMopeax- ^ thbhhh nponyKT nonHKoiifleHcaflHH φορΜΒΠΒΑεΓΗΑΒ c φεΗοηοΜ h / hjih c apυρηποβημ cnnp-tqm η / ηπη c xapoMHflOM. CTacHnbHocTb ΜΟΑΗφΗΐχΗργιοπιεΓο 3φφκτβ πρκ xpaHeHHH CHnaHH3HpoBaHHoň cmohmnpaKTHnecKH ne 3hbhcht ot coflepacaHHH cnnaHa b CBB3yioineM h QnpeflenneTcn erorHAponHTHnecKOc ycTofiHHBocTbio. IIosTOMy npenenbi coAep «Ahhh eunaHa b Cmon BbiSparHbl TOnbKO HCXOflH H3 ero ynpOHHHlOmerO fleHCTBHH: ΠρΗ COflepxaHHH CHnaHa HHWe HH3K-Hero ero npeflena ynpoHHínomee BnHBHHe npoHBnneTCH b cna6oň CTeneHH and npn coAep» AHHH ero Bbrnie Bepxnero npeflena flanbHeňmero ycHneHHH ynpoMHaioinero βπηηηηηHe HaSjnoAaeTcn πρκ oflHOBpeMeHHoM BO3paeTaHHH ce.6ecTOHMOcra cBH3yiomero.

Bnaroflapn H3MeHeHmo, BHecéHHOMy b CTpoeHHe yrneBOflopoflHoro paflHxana R CBH-.3aHHoro nepe3 atom KHcnopofla C atom κρβΜΗκη (2-3 ΒΜβοτο btomob yrnepofla b RcornacHo H3BecraoMy TexHHnecKOMy pemeHmo (2), b CBH3yiomeM well H3o6peTéHnio cnnaHcortep »HT R paaBeTBneHHoro C 5-10 CTpoeHHH iaTOMaMH yrnepofla), flocraraeTCH ΗβοβγxoAHMan rHflponHTHqecKan ycToñnHBocTb cnnana h CTa6nnH3au; HH CBH3yiomHX ctctΗΗΗΗΒΒΗΗΒΒΒΒΗΗΟΪΗΗΟΪ CHnaHOM CMOJlbl.

OnHCbiBaeMbie cnnaHbí CHHTe3HpywT H3 coéflHHeHHH, coflepacamero anxoKCHnbHyio rpyn NY-OC2 hjih OC ^ y Hy κρβΜΗΗη Nyree peaKijHH περβΒΤβρΗφΜκβμΗΗ c 6onee, βμοοκοκηπη-mhm cnHpTOM, HMeromHM pa3BeTBneHHbift anKOKCHnbHwft pajiHKan.

Tax, HanpHMep, H3}> - H3oáMHnoBoro cnapTa nojiy-uawT y ^ eHOKCHnponHnTpHH3oaMHnokcHCHJlaH co cnenyiotueň CTpýKTypHoň φορΜγηοϋ:

CgHiOiCH ^ Si / OCH, CH2CH (CH3) 2/3 251655 3 AHajiorHUHo c Hcnonb3oBaHHeM / 5-3THJireKČHJioBoro crmpTa nojiyqatoT y-φβΗοκοΗΠρο-πκπτρΗ (ρ ~ 3THnreKCHJiCH) Si (OCH 2 CH (C 2 H 5) C 4 H 9) 3.

Bo3moxho τβκχβ HcnoJib3OBaHHe cwiaHOB aHajioruMHoro cTpoeHna 3hokch- hjihrJiHimaoKCH c ^ yHKUHOHanbHbíMH KOHyeebíMH rpynnaMH (R *) .. CBH3ywB (ee Comach Η3ο6ρβτβΗΗΐο, γοτοβητ rivet nepeMemnBaHHH cwjiaHa what cMÓnoňb TeqeHHe 30-60 MHHyT b 3aBnc.HMocTn rpm oSteMa MACC.

XapaKTepHCTHKo Μ3ΜβΗβΗΗΗ MOflHfJnmHpyjoinero Βφφβκτβ CHJiaHa npH xpaHeHHH CBasyro-mero hbjihtotch npoHHocTHbie cnncTBa (npouHocTb Ha cxaTne, ocbmaeMocTb) CMecH, npHroTaBHHBaeMoA Ha stom CBH3yromeM. BHymeHHH CTaSHJibHocTH npouHocTHbix cbcctb cBH3yromeronpHHHTa nportoniKHTenbHocTb ero xpaHeHHH, npH xoTopo npouHocTb Ha cxaTHe (n3Me-peHHan nepe3 2 naca nocne πρΗΓοτοΒηβΗΗΗ CMecH) yMeHbniaeTCH Ha 50Z. H306peTeHHe HJunocTpHpyeTCH cne ^ yioniHM npHMepoM. B Ta6j «i npHBeAeHbi cocTaBbi CBAsyromero (Přl-5 no Η3θ6ρβτβΗΗΐο τ (ø6, cornac H3BeCTHOMy TexHHHecKOMy pemeHmo (2) ._ T and 6 η η μ and 1

HaHMeHonaHne ΗΗΓρββΗβΗΤΟΒ

CoflepxaHHe HHrpeAHeHTOB b% noMacce b CBH3yromHX JW: ΗβΗοπο-φορΜβηΒ-AerH / jHaH CMOjia 99.8>> eHono- $ ypaHo-BaH cMona raMMa- $ eHOKCHnpo-ΠΗΠΤρΗΗ3Ο3ΜΗΠΟΚΟΗ ~ CHJiaH 0.2

- TaMMa-φβΗοκοκπρο-nHjrrpH (6eTa-3THji-reiccHJioKcn) cHJiaH -

TaMMa-φβΗοκοππρο-nHJITpHSTOKCHCHJiaH - 2 3 4 5 6 (no TOTHny) 99.5 99.0 99.5 - 99.5 - - 99.5 - 0.5 1 »° 0.5 - - 0.5 - - - - 0.5 251655 B TaCnune 2 npHBerteHbí coctsbu xojuwioTBepfleioinnx CMeceň, nonyneHHbix cΜΟΛΗφΗΐχΗρΟΒΗΗΗΜΜΗ CBHSyiOUHMH IP 1 “6, COFJiaCHO Ta6jIHIte

HaHMeHoBaHne HHrpeflHeHTOB COAepMaHHe ΗΗΓρβχΧΗβΗΤΟΒ B MSCCOBblX HaCTHX, B iwecHx IP1P: 1 Η 1 • 3 1 -] 5 6 KBοΑΗφΗΗΗρoβΗΗΟβCBH3ywmee cornacHoTaSjíHue 1: IP 1 1.0 W> 2 - 1.0 - - - IP 3 - - i, o - - - IP 4 - - - 1.0 - / - IP 5 - - - - 2.0 IP 6 (nonpoTOTHny) - -. 'i - 1,0 BoflHbi pactBop6ρΗ3ΟΛ0νΠΒφθΚΗ0-JIOTbl njIOTHOCTbK) 1,28-1., 30 γ / cm3 1,0 1,0 1,0 1,0 0,4 1,0 CBÓftCTBa CMeceň npH pa3JIHBHOn nppflOJtKHTentHOCTH BWflepacKH ΜΟΑΗφΗΐχΗρΟΒβΗΗΗΧCBH3yionffíx ř -6 (cocTaBbi ~ cmotph Ta6nHuy I) npHBe ^ eHb b TaSjímte 3. T and 6 π hna 3

CeoftcTBa IIOKaaaTenH cBoftCtBa cpBeMc 1MP (cocTaBH CMeceň - cmotph TaSnHuy 2) Γττ ~ πτπτ.

CpoK xpaHeHHa 0 cyTox: Upo ^ HocTb Ha c®a-ΤΗβ, Krc / cM2, nepe3 2 uaca 20 25 35 25 24,5 20 24 naca 35 45 55 45 82 40 OcbmaeMocTb, Xnepea 24 qaca 0.2 0.1 0 , 1 0,1 0,02 0,1 251655 5 fipoflOJEKeHne Ta6n.3 CBOňcTBa Ποκβ3βτβηΗ CBOňCTBa AJia CMeceň W (cocTaB CMeceň - cmotph TagJiHpy 2) 1 H 2 í 4 15 6 Cpox xpaHeHHa moah-φΗΑΗρ0Β3Β0Γ0 CBB “3yiomero 7 cyTox: IIpOMHOCTb Ha CttaTHĚKrc / cM ?, nepe3 2 naca 20 25 25 25 24.5 1 8 24 Maca 35 45 45 45 82 18 OcbmaeMocTb,% Mepea, 24m 0.2 0.1 0.1 0.1 0.02 0 5 Cpox xpaHeHHB mo- ΑΗφΗΙίΗρΟΒβΗΗΟΓΟ CBH “3ywmero 3 Mecapa: ripoMHocTb Ha c ^ arae, KTc / cM *, ρβρβ3 2 Maca 10 19 25 25 24,5 24 Maca 18 25 40 38 65 - OcbmaeMocTb, ρβρβ3 · 24 Maca 0.5 0.2 0.1 0.15 0.05 - Cpox xpaHeHHH moah- φΗΐΧΗρΟΒβΗΗΟΓΟ CBB- aywmero 4 Mecapa :. IIpoMHocTb Ha cwaTHe, ktc / cm ^, nepea 2 Maca - 17 18 20 18,5 24 Maca 20 26 30 65 - OcbmaeMocTb, Znepas 24 naca 0.4 0.2 0.15 0.05 - flaiůttie, πρΗΒβΛβΗΗΗβ b TaGjnnje 3 , noxasbiBaioT MTO npeHMymecTBOM cBH3yramerono Η3θ6ρετβΗΗΐο HBJíaeTCH BbicoKaa npoApjixHTejibHocTb coxpaHeHHH MOAHtfcHUHpyiomero3φφβκτη cnnana (3-4 Mecano) npaKTunecKH coBnaaarotuaa c rapaHTHňHMM cpqkomTOflHOCTH CMOJIbl, B to BpGMfl K3K XPM ΟΒΗ3γΜΠΙβΓΟ COOTBGTCTBHH B ~ C H3BeCTHbIM ΤβΧ HHnecKHM pemeHneM (2) coxpaHenne MOAHihHUHpyromero 3φφβκτ8 cocTaBJíaeT He 6onee7 AHefl. HaτβρΧΗΗ H φορΜΜ, HAROTOBJíeHHbie H3 CMeCH Ha CBHaywmeM B COOTBeTCTBHH C Ha-CTOHmHM Η3θ6ρβΤβΗΗΘΜ, MOryT 6blTb HCnOJIb30BaHM AJifl nOJiyneHHH OTJIHBOK H3 CTaJIH, nyryHa η ηβθτημχ MeTaJUioe. 251655 6

TexHHKO-aKOHOMHMecKHMH npaHMymecTBaMH Hac / roamer ΗβοδρετεΗΗΗ CBHaaHbí c Yee-JIHMGHHeM CpOKa XpaHeHHH CBH3yWtUerO, ΜΟΛΗφΜΙΙΗρΟΒβΚΗΟΓΟ CHJtaHOM H BO3MOKHOCTbI0ueHTpajiH3OBaHHoro ero npHroTOBjíeHHH NPH coxpaHeHHH Pahea AOCTHraBmHxcH npeHMy-mecTB: noBbnneHHH nponHocTH cm8ch, chhx6hhh pacxoAa cBH3ywmero η toms noAoSHoe, HT D πο3ΒθΐΐΗβτ yBeJiHMHTb npoH3BO4HTejibHocTb TpyAa, ynymnHTb KaqecTBo otjihbok hcaHHTapHo — ΗΗΜβΗΗΜεεκΗβ ycjtoBHH Tpy ^ a. ΦΟΡΜΥΛΑ M3OBPETEHPW · '1 1. CBH3yiomae aíih H3roTOBJieHHH ΠΗτεήκωχ φορΜ η ετερχκεή, OTBepxAaeMbtx β χο- jiortHOň ocHacTKe, BKmonawmee CHHTeTHnecKyio CMOJiy noJiHKOHAeHcauHOHHoro rune wcHJiaH, oTjiHHaiomeecH τβΜ, HTO, c nejtbio noBbnneHHH cTaSHJibHocTH cBH3y »MHX cbo8ctbΜΟ4ΗφΗΙ | ΗρθΒ3ΗΗθή CHJtaHOM CMOJlb! B yCJIOBHHX εε XpaHeHHH Β ΗεΗβΗΗβ flO 4 MeCHIjeB, oHo coflepiKHT b KanecTBe CHJiaHa KpeMHHnopraHHMecKHft ΜΟΗΟΜβρ c o6neň φσρΜγποϋR ' -ajHffl R & aTHHecKHň yrjieBOAopoAHbiH PA / C tnicaji hhcjtom aroMOB yrnepoAa rt for 5 h and 10 ° cpa3BeTBJt8HHoň cTpyKTypoň, πρκ cji8Ayrom8M cooTHoweHHH HHrpeAHeHTOB (b% no MACC) i ύΗΗΤβΤΗΗΘΟΚβΗ CMOJia nOJIHKOHAeHCaUHOH- ηογο THna 99.0 to 99.8 CHJian ynoMHHy-roro ctpobhhh 0.2 - 1.0. 2. CBH3yromee no π. 1, oTJiHnaiomeeca tbm, hto coAepxHT b KanecTBe CHJtaHa ynoMH-HyTOrO CTPÓ8HHB Γ3ΜΜ3 — φεΗ0Κ0ΗΠΡ0.ΠΗΠΤρΗΗ303ΜΗΠ0Κ0Η0ΐυΤ3Η. 3. CBH3yiow8e no π. 1, oTJiHHaiotneecH τεΜ, hto cpAepxHT b κβπεοτΒε cHJiaHaynoMH-HyTOrO CTpOBHHH ΓΗΜΜβ-φεΗΟΚεΗΠΡΟΠΗΠΤρΗί 6éTa-3TjJireKCHnOKCH) cHJiaH. 4. CBH3yrom88 no n · 10, οτηΗΗβκΜηεεοΗ τεΜ, hto b xanecTBe CHHTeTHtHecKoň cmojiuCOA8PWHT τερΜΟρεβΚΤΗΒΗδΙΗ ΠΡΟΑΥΚΤ nonHKOHAeHCaUHH φΟρΜΗΤΙΒΑβΓΗΑΒ C φΗΟΗΟΜΗΟΗΟΜ / hjihΦγρΚΠΟΒΜΜ CnttpTOM h / hjih KapČaMHAOM.

HcTOHHHKH ΗΗφορΜβΗΗΗ »ΠρΗΗΗΤΗβ BO BHHMaHHe npH 3KCnepTH3e: 1. C.C.JKyxoBCKHn, A.M.JIhcb, "ΜΜορΜΜ h ctbpjkhh H3 xoJioAHoTBepAeiomHx cMeceft", MocKBa, H3A. "MamHHocTpoeHHe", 1978 r., C. 26-40. 2, TaMxe, c. 77-83. A Η H 0. T A U H 8 Μ3θ6ρετ8ΗΗε othochtch κ oCjtacTH JiHTBnHoro npoH3BOACTBa h pemaeT sahany pa3-pa6oTKH CBfl3yiomero ajih xojioAHoTBBpAetome cmbch, cnocoCnoro coxpaHttTb BbicoKHenpouHocTHbie cbohctba πρκ απητ8πβηομ xpaHeHnu. IIpeAnaraeMoe CBH3yiomee coAepxHT CHHTeTHHecKyio cMOJiy η β xanecTBe ynpoHHaromeňAo6aBKH CHJiaH, κοτορωπ npeACTaBJíHer co6oň coeAHHeHne c yrjieBOAopoAHbíM paAHxa "JIOM, HMeiOlUHM pa3B8TBJI8HHyiO CTpyKTypy H HHCJIO aŤOMOB yrjiepOAA 5 rpm and 10 npHCJieAyiOmBM COOTHOIU8HHH ΚΟΜΠΟΗ8ΗΤΟΒ: CHHT8THH8CKaa CMOJia CHJiaH 99.0 to 99.8 0.2 - 1.0. Πρη3ηαηο Η3ο6ρετεΗΗεΜ no pe3ynbTaTaM 3KcnepTH3W, ocymecTBJíeitHoň PocyAapCTBeHHbtMΚΟΜΗτετοΜ CCCP no AenaM Η3θ6ρετεΗΗή η οτκρμτηΑ. 251655

Claims (4)

OBJECT OF THE INVENTION A binder for the manufacture of molds and cores, cold-cured, consisting of a polycoa-type and a silane synthetic resin, characterized in that to increase the stability of the bonding properties of the resin modified during storage for up to 4 months, R ' (CH2) nSi (OR) 5, where n is an integer from 1 to 3, R * is a phenoxy group, R is an aliphatic hydrocarbon radical having from 3 to 10 carbon atoms and a branched structure at the component ratio wt. % polycondensation synthetic resin 99.0 to 99.8%, and a composite of said composition of 0.2 to 1.0%. Binder according to claim 1, characterized in that it contains the silane of said composition, gamma-phenoxipropyl triisoamyloxisilane. 3. A binder according to claim 1, wherein said silane is said composition comprising a gamma-phenoxipropyltri [beta] -ethyl hexiloxyl silane. 4. A binder according to claim 1, wherein the synthetic resin comprises a thermoreactive polycondensation product of formaldehyde with phenol and / or furyl alcohol and / or carbamide. 251655