NO153060B - PROCEDURE FOR PREPARING BITUMEN-POLYMER MIXTURES - Google Patents

PROCEDURE FOR PREPARING BITUMEN-POLYMER MIXTURES Download PDF

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Publication number
NO153060B
NO153060B NO793609A NO793609A NO153060B NO 153060 B NO153060 B NO 153060B NO 793609 A NO793609 A NO 793609A NO 793609 A NO793609 A NO 793609A NO 153060 B NO153060 B NO 153060B
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Norway
Prior art keywords
weight
bitumen
carboxylated
polymer
styrene
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Application number
NO793609A
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Norwegian (no)
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NO153060C (en
NO793609L (en
Inventor
Paul Maldonado
Daniele Eber
Trung Kiet Phung
Original Assignee
Elf France
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from FR7831689A external-priority patent/FR2440967A2/en
Application filed by Elf France filed Critical Elf France
Publication of NO793609L publication Critical patent/NO793609L/en
Publication of NO153060B publication Critical patent/NO153060B/en
Publication of NO153060C publication Critical patent/NO153060C/en

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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L95/00Compositions of bituminous materials, e.g. asphalt, tar, pitch

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Civil Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Paints Or Removers (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Working-Up Tar And Pitch (AREA)

Description

Norsk utlegningsskrift nr. 151089 beskriver en fremgangs- Norwegian interpretation document no. 151089 describes a progress

måte ved fremstilling av blandinger av bitumen og polymerer som består av å bringe i kontakt ved en temperatur mellom 130 og 230^C 80-98 vekt-% av et bitumen med penetrasjon mellom 30 og 220 og 2-20 vekt-0/ av en styren/konjugert dien-blokk-kopolymer med midlere molekylvekt mellom 30 000 way in the production of mixtures of bitumen and polymers which consists of bringing into contact at a temperature between 130 and 230°C 80-98% by weight of a bitumen with penetration between 30 and 220 and 2-20% by weight of a styrene/conjugated diene block copolymer with average molecular weight between 30,000

og 300 000, holde den oppnådde blanding under røring i minst 2 timer, deretter tilsette 0,1-3 vekt-% elementært svovel i forhold til bitumenet og opprettholde røringen av blandingen som derved er oppnådd, i minst 20 min. for å and 300,000, keep the mixture obtained under stirring for at least 2 hours, then add 0.1-3% by weight elemental sulfur in relation to the bitumen and maintain the stirring of the mixture thus obtained for at least 20 min. in order to

oppnå vulkanisering in situ av kopolymeren. achieve in situ vulcanization of the copolymer.

Dienkomponenten i kopolymerene som beskrives i dette utleggningsskrift, er hovedsaklig butadien. The diene component in the copolymers described in this specification is mainly butadiene.

Foreliggende oppfinnelse utgjør en forbedring av denne fremgangsmåte ved fremstilling av bitumen-polymer- The present invention constitutes an improvement of this method in the production of bitumen-polymer

blandinger, hvorved 80-98 vekt-% av et bitumen blandes med 2-20 vekt-% av en styren/konjugert dien-blokk-kopolymer under tilsetning av 0,1-3 vekt-% elementært svovel i forhold til bitumen, og fremgangsmåten er karakterisert ved at man som dienkomponent anvender karboksylert butadien eller karboksylert isopren. mixtures, whereby 80-98% by weight of a bitumen is mixed with 2-20% by weight of a styrene/conjugated diene block copolymer with the addition of 0.1-3% by weight elemental sulfur relative to the bitumen, and the method is characterized by using carboxylated butadiene or carboxylated isoprene as the diene component.

De karboksylerte polystyren-polyisopren- eller karboksylerte polystyren-polubutadien-blokk-kopolymerer er fortrinnsvis disekvens-kopolymerer med et innhold av polystyren som ligger mellom 15 og 25 vekt%. The carboxylated polystyrene-polyisoprene or carboxylated polystyrene-polybutadiene block copolymers are preferably disequence copolymers with a polystyrene content of between 15 and 25% by weight.

Deres molekylvekt er fortrinnsvis mellom 70 000 og 90 000. Their molecular weight is preferably between 70,000 and 90,000.

Innholdet av karboksylgrupper ligger fortrinnsvis mellom The content of carboxyl groups is preferably between

0.05 og 0,1 vekt-% i forhold til polymeren. 0.05 and 0.1% by weight in relation to the polymer.

Karboksylgruppene sitter fortrinnsvis i endene av polydienkjedene og kan innføres enten gjennom omsetning av endene med CO^ ved anionisk polymerisasjon eller ved maleinreaksjon eller oppvarming av den ikke-karboksylerte The carboxyl groups are preferably at the ends of the polydiene chains and can be introduced either through reaction of the ends with CO^ by anionic polymerization or by male reaction or heating of the non-carboxylated

polymer med akrylsyre. polymer with acrylic acid.

Vulkaniseringen in situ av en karboksylert disekvens-polystyren-polybutadien-kopolymer i bitumen gir forbedrede elastomere egenskaper ved kulde samtidig som produktet beholder en viskositet ved varme som er nær identisk med et bitumen-produkt på basis av disekvens-polystyren-polybutadien-kopolymer. The in-situ vulcanization of a carboxylated di-sequence polystyrene-polybutadiene copolymer in bitumen provides improved elastomeric properties in the cold while the product retains a viscosity in heat that is almost identical to a bitumen product based on di-sequence polystyrene-polybutadiene copolymer.

Disse forbedringer kan forklares ved at den doble kryssbinding som foreligger mellom polymerkjedene. Den ene, som er reversibel, kommer av karboksylgruppene i polymeren som danner salter med metall-ionene som foreligger i bitumenet (Fe, Ni, V) når blandingstemperaturen svekker overføringen av ikke-elastomere di-blokk-kjeder til elastomere poly-blokk-kjeder. These improvements can be explained by the double cross-linking that exists between the polymer chains. One, which is reversible, comes from the carboxyl groups in the polymer forming salts with the metal ions present in the bitumen (Fe, Ni, V) when the mixing temperature weakens the transfer of non-elastomeric di-block chains to elastomeric poly-block chains .

Den andre, som er irreversibel, fremkommer ved de svovelbroer som skapes mellom polymerkjedene hvis nærvær bibeholdes ved høyere temperaturer. The other, which is irreversible, arises from the sulfur bridges that are created between the polymer chains whose presence is maintained at higher temperatures.

Den doble kryssbinding som fremskynder bitumenets elastomere egenskaper tillater således å redusere andelen av polymerer som skal til for å oppnå nødvendige egenskaper for å tilfredstille driftsbetingelsene ved den tilsiktede bruk og vil derfor ha en direkte innflytelse på produktets fabrikasjonspris. The double cross-linking that accelerates the bitumen's elastomeric properties thus allows to reduce the proportion of polymers needed to achieve the necessary properties to satisfy the operating conditions of the intended use and will therefore have a direct influence on the product's manufacturing price.

Reversibiliteten av den ioniske kryssbindingen muliggjør en lettere benyttelse av produktet fordi det bibeholdes en viskositet som er identisk med den som oppnås ved en ikke-karboksylisk disekvenskopolymer som anvendes i samme mengde. The reversibility of the ionic cross-linking enables an easier use of the product because a viscosity is maintained which is identical to that obtained by a non-carboxylic disequence copolymer used in the same amount.

De følgende eksempler belyser forbedringen av egenskaper som oppnås ved å tilsette karboksylerte styren-isopren- The following examples illustrate the improvement in properties achieved by adding carboxylated styrene-isoprene-

og styren-butadien-kopolymere. and styrene-butadiene copolymers.

SAMMENLIGNINGSEKSEMPEL 1 COMPARISON EXAMPLE 1

Man blander 100 deler av en bitumen 80-100 med en Bille et Anneau-temperatur på 48°C og et Fraass-punkt på -18°C og 10 deler av en isopren-styren-disekvenskopolymer med midlere molekylvekt 80 000 og forhold isopren , ., 3. One mixes 100 parts of a bitumen 80-100 with a Bille et Anneau temperature of 48°C and a Fraass point of -18°C and 10 parts of an isoprene-styrene disequence copolymer with an average molecular weight of 80,000 and a ratio of isoprene, ., 3.

_, J_ lic j • _, J_ lic j •

styren styrene

Man holder blandingen på 17 0°C i 3 timer 3 0 min. under røring, tilsetter 0,2 deler elementært svovel og fortsetter røringen i en halv time. The mixture is kept at 170°C for 3 hours 30 minutes. while stirring, add 0.2 parts of elemental sulfur and continue stirring for half an hour.

De karakteristiske egenskaper hos den erholdte bitumen-polymer fremgår av tabell I. The characteristic properties of the obtained bitumen polymer appear in table I.

SAMMENLIGNINGSEKSEMPEL 2 COMPARISON EXAMPLE 2

Man gjentar sammenligningseksempel 1 under utelatelse av tilsetning av svovel og holder blandingen under røring i 4 timer. Man fastslår at blandingen er ubestandig ved strekk-prøver ved -10°C i 10 mm/mn. Comparative example 1 is repeated, omitting the addition of sulphur, and the mixture is kept under stirring for 4 hours. It is established that the mixture is unstable in tensile tests at -10°C for 10 mm/min.

EKSEMPEL I EXAMPLE I

Man går frem som i sammenligningseksempel 1, men erstatter One proceeds as in comparison example 1, but replaces

i disekvenskopolymeren isoprensekvensen med en karboksylert butadiensekvens, hvilket bedrer de elastiske egenskaper som man kan se av tabell I. Karboksyl-gruppeinnholdet ligger mellom 0,05 og 0,1 vekt-% i forhold til polymeren. in the disequence copolymer the isoprene sequence with a carboxylated butadiene sequence, which improves the elastic properties as can be seen from Table I. The carboxyl group content is between 0.05 and 0.1% by weight in relation to the polymer.

SAMMENLIGNINGSEKSEMPEL 3 COMPARISON EXAMPLE 3

Dette eksempelet er en sammenligning med eksempel I, hvor sistnevnte gjentas uten vulkanisering in situ, dvs. ved utelatelse av tilsetting av elementært svovel. This example is a comparison with example I, where the latter is repeated without vulcanization in situ, i.e. by omitting the addition of elemental sulphur.

Man fastslår som tilsynelatende ubestandighet for strekk- It is determined as apparent instability for tensile

prøver ved -10°C 500 mrr/mn. samples at -10°C 500 mrr/mn.

EKSEMPEL II EXAMPLE II

Fordi de forbedrede elastiske egenskaper oppnås ved karboksylert butadien i enden av kjeden, går man frem som i de foregående eksempler men innfører en mindre andel av ko- Because the improved elastic properties are achieved by carboxylated butadiene at the end of the chain, one proceeds as in the previous examples but introduces a smaller proportion of co-

A S M A.-S 15.000 6 84 A S M A.-S 15,000 6 84

polymer: bare 3 %. polymer: only 3%.

SAMMENLIGNINGSEKSEMPEL 4 COMPARISON EXAMPLE 4

Man arbeider i sammenligning med eksempel II med en andel In comparison with example II, one works with a proportion

på 3 % av en ikke-karboksylert styren-butadien-kopolymer. of 3% of a non-carboxylated styrene-butadiene copolymer.

Slike produkter som man oppnår innenfor rammen av foreliggende oppfinnelse er produkter med en sterk elastisk karakter og et betydelig plastisitetsinterval hvilket fører til spesielt inter-essante egenskaper slik at man kan bruke dem: - for fremstilling av skotøy og industriell bekledning (over-trekk, overflatebelegg, asfaltbelegg, - for nevnte industrielle applikasjoner slik som tetninger (be-legg, filt, takspon, maling, produkter for bilunderstell, produkter for termisk-, elektrisk- og lydisolasjon.) Such products that are obtained within the framework of the present invention are products with a strong elastic character and a significant plasticity interval, which leads to particularly interesting properties so that they can be used: - for the production of footwear and industrial clothing (overcoats, surface coatings , asphalt coating, - for mentioned industrial applications such as seals (coating, felt, roofing shavings, paint, products for car chassis, products for thermal, electrical and sound insulation.)

EKSEMPEL III EXAMPLE III

Man fremstiller en blanding av 100 deler bitumen 80-100 med A mixture of 100 parts bitumen 80-100 med

en Ball og Ring temperatur på 48°C og Fraas-punkt på a Ball and Ring temperature of 48°C and Fraas point on

-18°C, og 10 deler av en styreri/karboksyler isopren- -18°C, and 10 parts of a styrene/carboxyl isoprene-

kopolymer inneholdende 0,55 vekt-% karboksylgrupper (i forhold til kopolymerens vekt) og med et vektforhold lik 3 copolymer containing 0.55% by weight carboxyl groups (in relation to the weight of the copolymer) and with a weight ratio equal to 3

mellom karboksylert isopren og styren. Blandingen blir viderebehandlet som i sammenligningseksempel 1. between carboxylated isoprene and styrene. The mixture is further processed as in comparative example 1.

Claims (2)

1. Fremgangsmåte ved fremstilling av blandinger av bitumen og polymerer bestående i å blande under røring ved en temperatur fra 130-230°C 80-98 vekt-% av et bitumen med penetrasjon mellom 30 og 220 og 2-20 vekt-% av en styren/kon-jugert dien-blokk-kopolymer med midlere molekylvekt mellom 30 000 og 300 000, og å holde denne blanding i minst 2 timer ved denne temperatur, hvoretter det tilsettes 0,1-3 vekt-% elementært svovel i forhold til bitumenet under opp-rettholdelse av de samme røre- og temperaturbetingelser i minst 20 min, karakterisert ved at man anvender en blokk-kopolymer der det konjugerte dien er karboksylert butadien eller karboksylert isopren.1. Process for the production of mixtures of bitumen and polymers consisting of mixing under stirring at a temperature of 130-230°C 80-98% by weight of a bitumen with penetration between 30 and 220 and 2-20% by weight of a styrene/conjugated diene block copolymer with an average molecular weight between 30,000 and 300,000, and to hold this mixture for at least 2 hours at this temperature, after which 0.1-3% by weight of elemental sulfur is added relative to the bitumen while maintaining the same stirring and temperature conditions for at least 20 min, characterized by using a block copolymer where the conjugated diene is carboxylated butadiene or carboxylated isoprene. 2. Fremgangsmåte ifølge krav 1, karakterisert ved at man som blokk-kopolymerer anvender disekvens-kopolymerer med en polystyrenmengde mellom 15 og 25 vekt-%, en molekylvekt fra 70 000 til 90 000 og et innhold karboksylgrupper som varierer fra 0,05-0,1 vekt-% i forhold til polymeren.2. Method according to claim 1, characterized in that block copolymers are used as block copolymers with a polystyrene amount between 15 and 25% by weight, a molecular weight from 70,000 to 90,000 and a content of carboxyl groups that varies from 0.05-0 .1% by weight in relation to the polymer.
NO793609A 1978-11-09 1979-11-08 PROCEDURE FOR PREPARING BITUMEN-POLYMER MIXTURES NO153060C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7831689A FR2440967A2 (en) 1976-12-28 1978-11-09 Bitumen-polymer compsn. for road and industrial coatings etc. - contains styrene!-conjugated diene! copolymer and sulphur

Publications (3)

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NO793609L NO793609L (en) 1980-05-12
NO153060B true NO153060B (en) 1985-09-30
NO153060C NO153060C (en) 1986-01-08

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NO793609A NO153060C (en) 1978-11-09 1979-11-08 PROCEDURE FOR PREPARING BITUMEN-POLYMER MIXTURES

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JP (1) JPS5831107B2 (en)
AT (1) AT369778B (en)
BE (1) BE879847A (en)
BR (1) BR7907255A (en)
CA (1) CA1137243A (en)
CH (1) CH643282A5 (en)
DE (1) DE2945365C2 (en)
DK (1) DK168074B1 (en)
ES (1) ES485814A1 (en)
GB (1) GB2038848A (en)
IT (1) IT1127205B (en)
NL (1) NL188044C (en)
NO (1) NO153060C (en)
SE (1) SE437529B (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3037829C2 (en) * 1980-10-07 1983-08-25 Rütgerswerke AG, 6000 Frankfurt Process for the production of modified pitches and low-boiling aromatics or olefins and the use of these pitches
JPS57139143A (en) * 1981-02-23 1982-08-27 Asahi Chem Ind Co Ltd Bituminous composition
US4485201A (en) * 1983-11-21 1984-11-27 Midwest Elastomers, Inc. Method of modifying asphalt with thermoplastic polymers, ground rubber and composition produced
US4933384A (en) * 1986-01-10 1990-06-12 The Dow Chemical Company Bituminous materials
US5270361A (en) * 1992-02-25 1993-12-14 Bitumar R. & D. (2768836 Canada Inc.) Asphalt composition and process for obtaining same
GB2305667A (en) * 1995-09-27 1997-04-16 Lawrence Lester Bitumen-polymer compositions
CA2359173A1 (en) 1999-01-27 2000-08-03 Polyphalt Inc. Modified bituminous composition for roof membranes
EA021407B1 (en) * 2010-02-23 2015-06-30 Шелл Интернэшнл Рисерч Маатсхаппий Б.В. Bituminous composition
US9249304B2 (en) 2013-11-01 2016-02-02 Saudi Arabian Oil Company Heavy oil ash in roofing, damp-proofing, and water proofing applications
US9637635B2 (en) 2013-11-01 2017-05-02 Saudi Arabian Oil Company Sulfur asphalt in roofing, damp-proofing and water proofing
WO2015066567A1 (en) * 2013-11-01 2015-05-07 Saudi Arabian Oil Company Sulfur asphalt in roofing, damp-proofing and water proofing
US9309441B2 (en) 2013-11-01 2016-04-12 Saudi Arabian Oil Company Sulfur asphalt in roofing, damp-proofing and water proofing

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2376188A1 (en) * 1976-12-28 1978-07-28 Elf Union PROCESS FOR PREPARING COMPOSITIONS OF POLYMERIC BITUMES

Also Published As

Publication number Publication date
GB2038848A (en) 1980-07-30
JPS5569650A (en) 1980-05-26
SE7909260L (en) 1980-05-10
ES485814A1 (en) 1980-05-16
NO153060C (en) 1986-01-08
NL7908230A (en) 1980-05-13
AT369778B (en) 1983-01-25
NO793609L (en) 1980-05-12
DE2945365C2 (en) 1984-03-15
NL188044B (en) 1991-10-16
NL188044C (en) 1992-03-16
IT7927120A0 (en) 1979-11-08
SE437529B (en) 1985-03-04
IT1127205B (en) 1986-05-21
DK168074B1 (en) 1994-01-31
DK472979A (en) 1980-05-10
DE2945365A1 (en) 1980-05-22
CA1137243A (en) 1982-12-07
BR7907255A (en) 1980-07-08
CH643282A5 (en) 1984-05-30
BE879847A (en) 1980-03-03
JPS5831107B2 (en) 1983-07-04
ATA718479A (en) 1982-06-15

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