NO156376B - PROCEDURE FOR SATISFACTORY PREPARATION OF ASPHALT CONCRETE. - Google Patents
PROCEDURE FOR SATISFACTORY PREPARATION OF ASPHALT CONCRETE. Download PDFInfo
- Publication number
- NO156376B NO156376B NO83831423A NO831423A NO156376B NO 156376 B NO156376 B NO 156376B NO 83831423 A NO83831423 A NO 83831423A NO 831423 A NO831423 A NO 831423A NO 156376 B NO156376 B NO 156376B
- Authority
- NO
- Norway
- Prior art keywords
- magnesium
- unsaturated
- polyester
- compounds
- acid
- Prior art date
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- 238000002360 preparation method Methods 0.000 title description 3
- 239000011384 asphalt concrete Substances 0.000 title 1
- 229920000728 polyester Polymers 0.000 claims description 43
- 150000001875 compounds Chemical class 0.000 claims description 31
- 229920006305 unsaturated polyester Polymers 0.000 claims description 27
- 239000000395 magnesium oxide Substances 0.000 claims description 21
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 21
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 21
- 238000000465 moulding Methods 0.000 claims description 20
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 16
- 239000011777 magnesium Substances 0.000 claims description 16
- 229910052749 magnesium Inorganic materials 0.000 claims description 16
- 150000002681 magnesium compounds Chemical class 0.000 claims description 10
- 239000003054 catalyst Substances 0.000 claims description 7
- 239000000945 filler Substances 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 2
- 239000011780 sodium chloride Substances 0.000 claims description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 18
- 230000008719 thickening Effects 0.000 description 15
- 239000000047 product Substances 0.000 description 14
- 239000000203 mixture Substances 0.000 description 8
- 238000003825 pressing Methods 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 6
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 6
- -1 xylylene glycols Chemical class 0.000 description 6
- 239000002253 acid Substances 0.000 description 5
- 239000003365 glass fiber Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 159000000003 magnesium salts Chemical class 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 2
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 2
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 description 2
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- XXROGKLTLUQVRX-UHFFFAOYSA-N allyl alcohol Chemical compound OCC=C XXROGKLTLUQVRX-UHFFFAOYSA-N 0.000 description 2
- 238000004061 bleaching Methods 0.000 description 2
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 description 2
- RWGFKTVRMDUZSP-UHFFFAOYSA-N cumene Chemical compound CC(C)C1=CC=CC=C1 RWGFKTVRMDUZSP-UHFFFAOYSA-N 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- IPCSVZSSVZVIGE-UHFFFAOYSA-N hexadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(O)=O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 description 2
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 2
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 2
- 239000001095 magnesium carbonate Substances 0.000 description 2
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 2
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
- WLJVNTCWHIRURA-UHFFFAOYSA-N pimelic acid Chemical compound OC(=O)CCCCCC(O)=O WLJVNTCWHIRURA-UHFFFAOYSA-N 0.000 description 2
- 238000006068 polycondensation reaction Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 2
- ARCGXLSVLAOJQL-UHFFFAOYSA-N trimellitic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C(C(O)=O)=C1 ARCGXLSVLAOJQL-UHFFFAOYSA-N 0.000 description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 2
- NIDNOXCRFUCAKQ-UMRXKNAASA-N (1s,2r,3s,4r)-bicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical compound C1[C@H]2C=C[C@@H]1[C@H](C(=O)O)[C@@H]2C(O)=O NIDNOXCRFUCAKQ-UMRXKNAASA-N 0.000 description 1
- DJKGDNKYTKCJKD-BPOCMEKLSA-N (1s,4r,5s,6r)-1,2,3,4,7,7-hexachlorobicyclo[2.2.1]hept-2-ene-5,6-dicarboxylic acid Chemical compound ClC1=C(Cl)[C@]2(Cl)[C@H](C(=O)O)[C@H](C(O)=O)[C@@]1(Cl)C2(Cl)Cl DJKGDNKYTKCJKD-BPOCMEKLSA-N 0.000 description 1
- ZQHJVIHCDHJVII-OWOJBTEDSA-N (e)-2-chlorobut-2-enedioic acid Chemical compound OC(=O)\C=C(\Cl)C(O)=O ZQHJVIHCDHJVII-OWOJBTEDSA-N 0.000 description 1
- AZQWKYJCGOJGHM-UHFFFAOYSA-N 1,4-benzoquinone Chemical compound O=C1C=CC(=O)C=C1 AZQWKYJCGOJGHM-UHFFFAOYSA-N 0.000 description 1
- RTBFRGCFXZNCOE-UHFFFAOYSA-N 1-methylsulfonylpiperidin-4-one Chemical compound CS(=O)(=O)N1CCC(=O)CC1 RTBFRGCFXZNCOE-UHFFFAOYSA-N 0.000 description 1
- WZHHYIOUKQNLQM-UHFFFAOYSA-N 3,4,5,6-tetrachlorophthalic acid Chemical compound OC(=O)C1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1C(O)=O WZHHYIOUKQNLQM-UHFFFAOYSA-N 0.000 description 1
- JIGUICYYOYEXFS-UHFFFAOYSA-N 3-tert-butylbenzene-1,2-diol Chemical compound CC(C)(C)C1=CC=CC(O)=C1O JIGUICYYOYEXFS-UHFFFAOYSA-N 0.000 description 1
- JLBJTVDPSNHSKJ-UHFFFAOYSA-N 4-Methylstyrene Chemical compound CC1=CC=C(C=C)C=C1 JLBJTVDPSNHSKJ-UHFFFAOYSA-N 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 239000004342 Benzoyl peroxide Substances 0.000 description 1
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 1
- 235000013162 Cocos nucifera Nutrition 0.000 description 1
- 244000060011 Cocos nucifera Species 0.000 description 1
- 239000005639 Lauric acid Substances 0.000 description 1
- 235000021314 Palmitic acid Nutrition 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 1
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 1
- SQYNJZFYBCGAEI-UHFFFAOYSA-N [3-(hydroxymethyl)cyclobutyl]methanol Chemical compound OCC1CC(CO)C1 SQYNJZFYBCGAEI-UHFFFAOYSA-N 0.000 description 1
- 150000001243 acetic acids Chemical class 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- JFCQEDHGNNZCLN-UHFFFAOYSA-N anhydrous glutaric acid Natural products OC(=O)CCCC(O)=O JFCQEDHGNNZCLN-UHFFFAOYSA-N 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 235000019400 benzoyl peroxide Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 1
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical group 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- HNEGQIOMVPPMNR-IHWYPQMZSA-N citraconic acid Chemical compound OC(=O)C(/C)=C\C(O)=O HNEGQIOMVPPMNR-IHWYPQMZSA-N 0.000 description 1
- 229940018557 citraconic acid Drugs 0.000 description 1
- IFDVQVHZEKPUSC-UHFFFAOYSA-N cyclohex-3-ene-1,2-dicarboxylic acid Chemical compound OC(=O)C1CCC=CC1C(O)=O IFDVQVHZEKPUSC-UHFFFAOYSA-N 0.000 description 1
- QSAWQNUELGIYBC-UHFFFAOYSA-N cyclohexane-1,2-dicarboxylic acid Chemical compound OC(=O)C1CCCCC1C(O)=O QSAWQNUELGIYBC-UHFFFAOYSA-N 0.000 description 1
- LSXWFXONGKSEMY-UHFFFAOYSA-N di-tert-butyl peroxide Chemical compound CC(C)(C)OOC(C)(C)C LSXWFXONGKSEMY-UHFFFAOYSA-N 0.000 description 1
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 description 1
- 150000001991 dicarboxylic acids Chemical class 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 239000000539 dimer Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 125000004185 ester group Chemical group 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 230000029142 excretion Effects 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000001530 fumaric acid Substances 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- UEGPKNKPLBYCNK-UHFFFAOYSA-L magnesium acetate Chemical compound [Mg+2].CC([O-])=O.CC([O-])=O UEGPKNKPLBYCNK-UHFFFAOYSA-L 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- CQQJGTPWCKCEOQ-UHFFFAOYSA-L magnesium dipropionate Chemical class [Mg+2].CCC([O-])=O.CCC([O-])=O CQQJGTPWCKCEOQ-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- AKTIAGQCYPCKFX-FDGPNNRMSA-L magnesium;(z)-4-oxopent-2-en-2-olate Chemical class [Mg+2].C\C([O-])=C\C(C)=O.C\C([O-])=C\C(C)=O AKTIAGQCYPCKFX-FDGPNNRMSA-L 0.000 description 1
- GMDNUWQNDQDBNQ-UHFFFAOYSA-L magnesium;diformate Chemical compound [Mg+2].[O-]C=O.[O-]C=O GMDNUWQNDQDBNQ-UHFFFAOYSA-L 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- HNEGQIOMVPPMNR-NSCUHMNNSA-N mesaconic acid Chemical compound OC(=O)C(/C)=C/C(O)=O HNEGQIOMVPPMNR-NSCUHMNNSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 125000005397 methacrylic acid ester group Chemical group 0.000 description 1
- HNEGQIOMVPPMNR-UHFFFAOYSA-N methylfumaric acid Natural products OC(=O)C(C)=CC(O)=O HNEGQIOMVPPMNR-UHFFFAOYSA-N 0.000 description 1
- WQEPLUUGTLDZJY-UHFFFAOYSA-N n-Pentadecanoic acid Natural products CCCCCCCCCCCCCCC(O)=O WQEPLUUGTLDZJY-UHFFFAOYSA-N 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920001521 polyalkylene glycol ether Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- YPFDHNVEDLHUCE-UHFFFAOYSA-N propane-1,3-diol Chemical compound OCCCO YPFDHNVEDLHUCE-UHFFFAOYSA-N 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000012763 reinforcing filler Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 150000003440 styrenes Chemical class 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- GJBRNHKUVLOCEB-UHFFFAOYSA-N tert-butyl benzenecarboperoxoate Chemical compound CC(C)(C)OOC(=O)C1=CC=CC=C1 GJBRNHKUVLOCEB-UHFFFAOYSA-N 0.000 description 1
- UFDHBDMSHIXOKF-UHFFFAOYSA-N tetrahydrophthalic acid Natural products OC(=O)C1=C(C(O)=O)CCCC1 UFDHBDMSHIXOKF-UHFFFAOYSA-N 0.000 description 1
- QXJQHYBHAIHNGG-UHFFFAOYSA-N trimethylolethane Chemical compound OCC(C)(CO)CO QXJQHYBHAIHNGG-UHFFFAOYSA-N 0.000 description 1
- 229920001567 vinyl ester resin Polymers 0.000 description 1
Description
Herdbare polyesterpressmasser. Curable polyester pressing compounds.
Det er kjent å fremstille polyesterpressmasser fra polyesterformmasser, dvs. av katalysatorholdige oppløsninger av umettet, polymeriserbar polyester i derpå påpolymeriserbare, monomere umettede forbindelser, og forsterkende fyllstoffer, særlig glassfibre, som glassfibermatter eller -duk, eller pulverformige fyllstoffer, som ved oppvarming eller trykk og under formgivning kan herdes til verdifulle formlegemer. It is known to produce polyester molding compounds from polyester molding compounds, i.e. from catalyst-containing solutions of unsaturated, polymerizable polyester in then polymerizable, monomeric unsaturated compounds, and reinforcing fillers, especially glass fibers, such as glass fiber mats or cloth, or powdery fillers, such as by heating or pressure and during shaping can be hardened into valuable shaped bodies.
De beskrevne polyesterpressmasser er imidlertid i praksis vanskelig å håndtere da de som regel ikke har noen klebefrie overflater og polyesterharpiksene ved de for utherdningen nødvendige temperaturer blir utfiltrert på grunn av viskositetssenk-ningen, slik at uensartede herdningspro-dukter oppsto. However, the polyester molding compounds described are difficult to handle in practice as they usually have no adhesive-free surfaces and the polyester resins at the temperatures required for curing are filtered out due to the viscosity reduction, so that non-uniform curing products arose.
Det er kjent fra fransk patent nr. It is known from French patent no.
1 186 636 at disse ulemper kan unngåes ved at man til polyesterformmassen før sam-menblandingen med fyllstoffene jevnt til-blander små mengder findelt magnesiumoxyd. De således erholdte polyesterpressmasser har allikevel fremdeles en rekke av andre ulemper som vanskeliggjør deres fremstilling og deres praktiske anvendelse. Således stiger særlig viskositeten bare langsomt efter tilsetningen av magnesiumoxydet slik at pressmassen ofte først efter flere uker er fortykket så langt at den er klebefri og dermed er moden til forarbei-delse. Dette betyr at et uønsket stort og ufordelaktig forråd er nødvendig når silke pressmasser skal fremstilles kontinuerlig 1 186 636 that these disadvantages can be avoided by uniformly mixing small amounts of finely divided magnesium oxide into the polyester molding compound before mixing with the fillers. The polyester press materials thus obtained nevertheless still have a number of other disadvantages which make their production and their practical use difficult. Thus, in particular, the viscosity rises only slowly after the addition of the magnesium oxide, so that the pressed mass is often only after several weeks thickened to such an extent that it is sticky-free and thus ready for processing. This means that an undesirably large and disadvantageous supply is necessary when silk pressings are to be produced continuously
og skal opparbeides. Dessuten blir anven-delsen av slike polyesterpressmasser for-hindret i sterk grad ved at den inntredende viskositetsøkning etter tilsetningen av magnesiumoxydet ikke med sikkerhet er reproduserbar, dvs. man får sterkt svin-gende fortykningstider, slik at blant annet den fare består at enkelte partier er kommet for langt i modningen og ikke mere kan opparbeides uklanderlig. and must be processed. In addition, the use of such polyester pressing compounds is greatly hindered by the fact that the viscosity increase that occurs after the addition of the magnesium oxide is not reproducible with certainty, i.e. you get strongly fluctuating thickening times, so that, among other things, there is a danger that certain parts are matured too far and can no longer be prepared impeccably.
Det har nu vist seg at man kan unngå alle de nevnte ulemper og får polyesterpressmasser fra umettede polyestere, monomere umettede forbindelser som kan på-polymeriseres på polyesterne, fyllstoffer, katalysatorer og magnesiumoxyd, som hurtig og reproduserbart fortykkes til klebefrie produkter, når man ved deres fremstilling i det minste delvis anvender slike umettede polyestere som fåes ved omsetning ved en temperatur mellom 60 og 190° It has now been shown that you can avoid all of the aforementioned disadvantages and obtain polyester molding compounds from unsaturated polyesters, monomeric unsaturated compounds that can be polymerized onto the polyesters, fillers, catalysts and magnesium oxide, which are quickly and reproducibly thickened into tack-free products, when production at least partially uses such unsaturated polyesters as are obtained by reaction at a temperature between 60 and 190°
C av vanlige umettede polyestere med magnesiumforbindelser i slik mengde at den umettede polyester i det minste inneholder 0,05 vektpst. magnesium bundet saltaktig. ' C of ordinary unsaturated polyesters with magnesium compounds in such an amount that the unsaturated polyester contains at least 0.05% by weight. magnesium bound saline. '
De således fremstilte polyesterpressmasser viser ved praktisk talt uforandrede opparbeidelsestidsrom overraskende en be-traktelig forkortelse av den nødvendige fortykningstid efter tilsetningen av magnesiumoxydet for å nå den klebefrie til-stand. (Ved begrepet opparbeidelsestidsrom forståes det tidsrom som ligger mellom avsluttet modning av blandingen og begyn-nende geldannelse). Mens dessuten for-tykningstiden av de hittil anvendte polyesterformmasser med magnesiumoxyd dessuten fra gang til gang er underkastet store svingninger, fortykkes pplyesterpressmas-sene Ifølge oppfinnelsen jgodt reproduserbart hvorved en vesentlig mere rasjonell opparbeidelse muliggjøres! The polyester press materials produced in this way surprisingly show, with practically unchanged processing times, a considerable shortening of the necessary thickening time after the addition of the magnesium oxide to reach the tack-free state. (The term processing time is understood to mean the time that lies between the end of maturation of the mixture and the beginning of gel formation). While the thickening time of the hitherto used polyester molding compounds with magnesium oxide is also subject to large fluctuations from time to time, the polyester molding compounds are thickened according to the invention in a good reproducible manner, thereby enabling a significantly more rational processing!
Det var derfor ikke mulig å forutse at det ved forholdsreglene ifølge oppfinnelsen ville lykkes hurtig og reproduserbart å fremstille klebefrie polyesterpressmasser som kan lagres i lengere tid, under anvendelse av hvilke som helst umettede polyestere, i It was therefore not possible to foresee that, with the precautions according to the invention, it would be possible to quickly and reproducibly produce adhesive-free polyester pressings that can be stored for a longer time, using any unsaturated polyesters, in
Forskjellige umettede<1> polyestere som anvendes ved oppfinnelsen er de produkter som kan fåes ved polykondensasjon av a,p-umettede alifatiske \ dikarboxylsyrer, som maleinsyre, monoklormaleinsyre, fu-marsyre, mesaconsyre, itacpnsyre, citracon-syre, dimer methacrylsyré og lignende, henholdsvis estere eller anhydrider av disse eller blandinger av disse med eventuelt umettede, flerverdige alkoholer, som ethylenglycol, propandiol-1,3,; butandiol-1,3, butandiol-1,4, buten-(2)-diol-l,4, hexan-diol-1,6 osv., diethylenglycol, polyalkylen-glykolethere, bis-|3-hydroxyalkylethere av aromatiske dihydroxyforbiridelser, som 2,2-bis-(4-|3-hydroxyalkoxyfenyl)-alkaner, henholdsvis -cycloalkaner, 'xylylenglykoler, 1,3-dimethylolcyclobutan, chinitol, 2,2-bis-(hydroxycyclohexyl) -alkaner henholdsvis -cycloalkaner osv., eventuelt under tilsetning av andre dikarboxylsyrer som o-fthal-syre, isofthalsyre, terefthaisyre, tetrahyd-rofthalsyre, hexahydrofthalsyre, tetraklor-fthalsyre, endomethylentjetrahydrofthal-syre, hexaklorendomethylentetrahydro-fthalsyre, ravsyre, glutarsyre, adipinsyre, pimelinsyre osv. eller andre en- eller høye-reverdige alkoholer eller carboxylsyrer, som acrylsyre, methacrylsyré, kokosfettsyre, stearinsyre, palmitinsyre, laurinsyre, tri-mellitsyre, glycerin, trimethylolethan, tri-methylolpropan, pentaerythrit, allylalko-hol og delvise ethere av enverdige og flerverdige alifatiske alkoholer osv., med et innhold av rester av a,p-umettede alifatiske dikarboxylsyrer på minst ca. 10 mol-pst., beregnet på totalvekten av carboxyl-syrerestene. Various unsaturated<1> polyesters used in the invention are the products that can be obtained by polycondensation of a,p-unsaturated aliphatic\dicarboxylic acids, such as maleic acid, monochloromaleic acid, fumaric acid, mesaconic acid, itacpnic acid, citraconic acid, dimer methacrylic acid and the like. respectively esters or anhydrides of these or mixtures of these with possibly unsaturated, polyhydric alcohols, such as ethylene glycol, propanediol-1,3,; butanediol-1,3, butanediol-1,4, butene-(2)-diol-1,4, hexane-diol-1,6, etc., diethylene glycol, polyalkylene glycol ethers, bis-|3-hydroxyalkyl ethers of aromatic dihydroxy derivatives, such as 2,2-bis-(4-|3-hydroxyalkoxyphenyl)-alkanes, respectively -cycloalkanes, 'xylylene glycols, 1,3-dimethylolcyclobutane, chinitol, 2,2-bis-(hydroxycyclohexyl)-alkanes respectively -cycloalkanes, etc., optionally with the addition of other dicarboxylic acids such as o-phthalic acid, isophthalic acid, terephthalic acid, tetrahydrophthalic acid, hexahydrophthalic acid, tetrachlorophthalic acid, endomethylenetetrahydrophthalic acid, hexachloroendomethylenetetrahydrophthalic acid, succinic acid, glutaric acid, adipic acid, pimelic acid, etc. or other single or high -revalent alcohols or carboxylic acids, such as acrylic acid, methacrylic acid, coconut fatty acid, stearic acid, palmitic acid, lauric acid, trimellitic acid, glycerin, trimethylolethane, trimethylolpropane, pentaerythritol, allyl alcohol and partial ethers of monohydric and polyhydric aliphatic alcohols, etc., with a content of residues of a,p-unsaturated aliphatic dicarboxylic acids of at least approx. 10 mole percent, calculated on the total weight of the carboxylic acid residues.
Påpolymeriserbare monomere umettede forbindelser er de vanligvis til fremstilling av polyesterformmasser anvendte al-lyl- og vinylforbindelser, f. eks. styren, sub-stituerte styrener, som p-vinyltoluen, acrylsyre- og methacrylsyreester såvel som allyl-og vinylestere osv. Polymerizable monomeric unsaturated compounds are the allyl and vinyl compounds usually used for the production of polyester molding compounds, e.g. styrene, substituted styrenes, such as p-vinyltoluene, acrylic acid and methacrylic acid esters as well as allyl and vinyl esters, etc.
Innholdet av umettede polyestere i polyestérpressmassen ifølge oppfinnelsen The content of unsaturated polyesters in the polyester pressing mass according to the invention
kan svinge innen vide grenser. Den utgjør i alminnelighet 10 til 90 vektpst., fortrinnsvis 25 til 80 vektpst., beregnet på de påpolymeriserbare umettede forbindelser. can fluctuate within wide limits. It generally amounts to 10 to 90% by weight, preferably 25 to 80% by weight, calculated on the polymerizable unsaturated compounds.
De umettede polyestere kan eventuelt også inneholde inhibitorer, f. eks. hydrokinon, tert. butylcatechol, benzokinon, di-tert.butylbenzokinon og lignende, i vanlige mengder, i alminnelighet ca. 0,001 til ca. 0,1 pst. The unsaturated polyesters may optionally also contain inhibitors, e.g. hydroquinone, tert. butylcatechol, benzoquinone, di-tert.butylbenzoquinone and the like, in usual amounts, generally approx. 0.001 to approx. 0.1 percent
Som magnesiumforbindelse som ifølge oppfinnelsen omsettes med umettede polyestere, egner alle magnesiumforbindelser seg som formår å reagere med polyesterne under dannelse av magnesiumsalter. Eksempler på slike magnesiumforbindelser er foruten magnesiumoxyd og magnesium-hydroxyd, magnesiumsalter av organiske forbindelser som magnesiumformiat og -acetat, magnesiumsalter av halogenerte eddiksyrer, magnesiumpropionat og -ace-tylacetonat og -acetoacetat, dessuten mag-nesiumkarbonat, basisk magnesiumkarbo-nat og magnesium alkoholat. As a magnesium compound which, according to the invention, reacts with unsaturated polyesters, all magnesium compounds are suitable which manage to react with the polyesters to form magnesium salts. Examples of such magnesium compounds are, in addition to magnesium oxide and magnesium hydroxide, magnesium salts of organic compounds such as magnesium formate and -acetate, magnesium salts of halogenated acetic acids, magnesium propionate and -acetylacetonate and -acetoacetate, also magnesium carbonate, basic magnesium carbonate and magnesium alcoholate.
Magnesiumforbindelsene omsettes fortrinnsvis med de umettede polyestere ved forhøyet temperatur. Dette gjøres ved at en blanding av magnesiumforbindelsen og den umettede polyester, som fortrinnsvis har et syretall mellom 10 og 100, eventuelt under omrøring og i nærvær av en inert gass, oppvarmes en kort tid til temperaturer fra 60 til 190°C. Magnesiumforbindelsene kan eventuelt også tilsettes til de umettede polyestere under fremstillingen av disse før avslutningen av polykondensasjonen. De nevnte magnesiumforbindelser kan en-ten tilsettes som sådan eller i form av pastaer eller andre tilberedelser, som let-ter blandingen av bestanddelene. Eksempler på slike tilberedelser er f. eks. pastaer av magnesiumoxyd og myknere, som di-butylfthalat og lignende. The magnesium compounds are preferably reacted with the unsaturated polyesters at an elevated temperature. This is done by heating a mixture of the magnesium compound and the unsaturated polyester, which preferably has an acid number between 10 and 100, possibly with stirring and in the presence of an inert gas, for a short time to temperatures from 60 to 190°C. The magnesium compounds can optionally also be added to the unsaturated polyesters during their production before the end of the polycondensation. The mentioned magnesium compounds can either be added as such or in the form of pastes or other preparations, which facilitate the mixing of the components. Examples of such preparations are e.g. pastes of magnesium oxide and plasticizers, such as di-butyl phthalate and the like.
Ved omsetningen inntrer en viskosi-tetsøkning hvis grad blandt annet avhen-ger av polariteten av den umettede polyester. Ved lite polare polyestere iakttas en sterkere viskositetsøkning enn ved sterkere polare. During the conversion, an increase in viscosity occurs, the extent of which depends, among other things, on the polarity of the unsaturated polyester. With less polar polyesters, a stronger increase in viscosity is observed than with stronger polar ones.
Hvis man arbeider ved lavere temperaturer enn angitt, så trenges det for en full-stendig oppløsning av magnesiumforbindelsen flere dager. Ved for høye temperaturer blir den til å begynne med klare polyester under utskillelse av metallholdige bunnfall igjen blakket og mister sine egen-skaper ifølge oppfinnelsen. Temperaturen ved hvilken en blakning inntrer for første gang, er avhengig av polariteten av den umettede polyester. Således kan f. eks. sterkt polare magnesiumholdige umettede polyestere med over 1,1 mol estergrupper pr. 100 g opphetes i over 8 timer ved 180°C uten at en blakning inntrer, mens mindre polare allerede blakkes ved 140°C. If you work at lower temperatures than indicated, several days are needed for complete dissolution of the magnesium compound. At temperatures that are too high, the initially clear polyester becomes cloudy again during the excretion of metal-containing precipitates and loses its properties according to the invention. The temperature at which bleaching first occurs depends on the polarity of the unsaturated polyester. Thus, e.g. highly polar magnesium-containing unsaturated polyesters with more than 1.1 mol of ester groups per 100 g is heated for over 8 hours at 180°C without bleaching occurring, while less polar is already bleached at 140°C.
Magnesiuminnholdet av den umettede polyester respektive den derav fremstilte polyesterformmasse kan svinge innen vide grenser, og er avhengig av den spesielle sammensetning av den umettele polyester og den ønskede grad av viskositetsøkning. I alminnelighet er det tilstrekkelig når magnesiuminnholdet av den umettede polyester utgjør 0,05 til 3,0, fortrinnsvis 0,2 til 1,5 pst. The magnesium content of the unsaturated polyester or the polyester molding compound produced from it can fluctuate within wide limits, and is dependent on the particular composition of the unsaturated polyester and the desired degree of viscosity increase. In general, it is sufficient when the magnesium content of the unsaturated polyester amounts to 0.05 to 3.0, preferably 0.2 to 1.5 percent.
De erholdte magnesiumholdige umettede polyestere blir, eventuelt sammen med andre, magnesiumfrie umettede polyestere, oppløst i påpolymeriserbare monomere umettede forbindelser, eller oppløsninger av magnesiumfri og magnesiumholdige umettede polyestere i monomere påpolymeriserbare forbindelser blandes med hver-andre. De erholdte polyesterformmasser blir så blandet med ytterligere mengder magnesiumoxyd og samtidig eller kort tid efter blandet med en ved værelsetempera-tur mest mulig stabil katalysator som imidlertid ved oppvarming leverer polymerisa-sjonsutløsende redikaler, som benzoylper-oxyd, dicumolperoxyd, cumolhydroperoxyd, tert.butylhydroperoxyd, di-tert.butylper-oxyd, tert.butylperbenzoat, azodiisosmør-syrerdinitril eller pinakoner som danner virksomme radikaler, som benzplnakon, i mengder på 0,5 til 5 vektpst. Også blandinger av forskjellige herdningskatalysatorer kan med fordel anvendes. The obtained magnesium-containing unsaturated polyesters are, possibly together with other magnesium-free unsaturated polyesters, dissolved in polymerizable monomeric unsaturated compounds, or solutions of magnesium-free and magnesium-containing unsaturated polyesters in monomeric polymerizable compounds are mixed with each other. The obtained polyester molding compounds are then mixed with additional amounts of magnesium oxide and at the same time or shortly afterwards mixed with a catalyst that is as stable as possible at room temperature which, however, when heated delivers polymerization-triggering radicals, such as benzoyl peroxide, dicumol peroxide, cumol hydroperoxyd, tert.butyl hydroperoxyd, di-tert.butylperoxide, tert.butylperbenzoate, azodiisobutyric acid redinitrile or pinacones which form active radicals, such as benzplnacon, in amounts of 0.5 to 5% by weight. Mixtures of different curing catalysts can also be advantageously used.
De ytterligere mengder magnesiumoxyd som skal tilsettes til polyesterformmassene av de magnesiumholdige umettede polyestere, er likeledes avhengig av de ovenfor nevnte betingelser og kan derfor svinge innen vide grenser. I alminnelighet er en tilsetning av 0,5 til 10 vektpst. magnesiumoxyd, beregnet på totalvekten av polyesterformmassen, tilstrekkelig. The additional amounts of magnesium oxide to be added to the polyester molding compounds of the magnesium-containing unsaturated polyesters are likewise dependent on the above-mentioned conditions and can therefore fluctuate within wide limits. In general, an addition of 0.5 to 10 wt. magnesium oxide, calculated on the total weight of the polyester molding compound, sufficient.
Blandinger blir straks efter anvendt til impregnering av fyllstoffene som kritt, kaolin, kiselgur, talkum, kvartsmel og lignende eller fibre og vev, spesielt glassfibre og glassfiberstrenger, -matter, og -duk, i vanlige mengder. Mixtures are immediately afterwards used to impregnate the fillers such as chalk, kaolin, kieselguhr, talc, quartz flour and the like or fibers and tissues, especially glass fibers and glass fiber strands, mats and cloth, in normal quantities.
De således fremstilte polyesterpressmasser er allerede efter kort tid klebefrie og kan derefter ved oppvarming under trykk og under formgivning bearbeides på vanlig vis til formlegemer av alle slag. The polyester pressing compounds produced in this way are already adhesive-free after a short time and can then be processed in the usual way by heating under pressure and during shaping into molded bodies of all kinds.
Mengdeangivelsene i de efterfølgende eksempler er vektdeler og vektprosent. The quantities in the following examples are parts by weight and percentage by weight.
Eksempel 1. Example 1.
I tilsammen 6 forsøk ble i hvert 19,9 mol maleinsyreanhydrid, 5,1 mol fthalsyre-anhydrid, 15,0 mol butandiol-1,3 og 10,85 mol ethylenglycol forestret til en umettet In a total of 6 experiments, 19.9 mol of maleic anhydride, 5.1 mol of phthalic anhydride, 15.0 mol of butanediol-1,3 and 10.85 mol of ethylene glycol were esterified to an unsaturated
polyester med syretall 35, hvis 65 pst.'ige polyester with acid number 35, if 65 per cent
oppløsning i styren ved 20 °C hadde en viskositet på ca. 1100 cp. Stabiliseringen av den monomerfrie polyeser ble utført med 0,01 pst. hydrokinon. solution in styrene at 20 °C had a viscosity of approx. 1100 cp. The stabilization of the monomer-free polyeser was carried out with 0.01% hydroquinone.
a) I tilsammen 3 forsøk ble hver gang 3000 deler av den enkelte polyester blandet med a) In a total of 3 trials, each time 3000 parts of the individual polyester were mixed with
21 deler «Magnesiumoxyd leicht, rein» og 21 parts "Magnesiumoxyd leicht, pure" and
under omrøring og overledning av en nitro-genstrøm oppvarmet i løpet av 1 time til 150 til 155°C og holdt ved denne temperatur i y2 time, hvorved den til å begynne med blakke blanding gikk over i en klar smelte. Efter avkjøling til 110°C ble produktene i hvert tilfelle oppløst til 65 pst. konsentrasjon i styren. De erholdte polyesterformmasser hadde ved 20°C en viskositet på ca. 3400 cp. with stirring and passing a stream of nitrogen heated in the course of 1 hour to 150 to 155°C and held at this temperature for y2 hours, during which the initially cloudy mixture turned into a clear melt. After cooling to 110°C, the products in each case were dissolved to 65 percent concentration in styrene. The obtained polyester molding compounds had at 20°C a viscosity of approx. 3400 cp.
Fra disse produkter ble fortykningstidene med magnesiumoxyd bestemt. I denne hensikt ble prøvene av produktene revet med 1,5 pst. «magnesiumoxyd leicht, rein» på en valsemølle og lagret ved 20°C. Ved fortykningstid forståes den tid efter hvilken massen har nådd en viskositet på 30 millioner cp. Ved denne verdi er produktene i alminnelighet klebefrie. Resul-tatet av disse målinger som ble utført med et rotasjonsviskosimeter, er gjengitt i de følgende tabeller: From these products, the thickening times with magnesium oxide were determined. For this purpose, the samples of the products were shredded with 1.5% "magnesium oxyd leicht, rein" on a rolling mill and stored at 20°C. Thickening time means the time after which the mass has reached a viscosity of 30 million cp. At this value, the products are generally non-sticky. The results of these measurements, which were carried out with a rotational viscometer, are reproduced in the following tables:
b) Til sammenligning ble i tilsammen 3 ytterligere forsøk fortykningstiden bestemt b) For comparison, in a total of 3 further trials, the thickening time was determined
på samme måte for polyesterformmasser fremstilt av de ovenstående magnesiumfrie polyestere ved oppløsning i styren til 65 pst. faststoffinnhold. Fortykningen in the same way for polyester molding compounds produced from the above magnesium-free polyesters by dissolving in styrene to 65 percent solids content. The thickening
skjedde alltid ved tilsetning av 1,95 pst. magnesiumoxyd slik at sammenlignings-eksemplene hadde det samme totale magnesiuminnhold som polyesterformmassene always occurred with the addition of 1.95 percent magnesium oxide so that the comparison examples had the same total magnesium content as the polyester molding compounds
i tabell 1. De erholdte fortykningstider er angitt i den følgende tabell: in table 1. The obtained thickening times are indicated in the following table:
Eksempel 2. Example 2.
I tilsammen 5 forsøk ble i hvert tilfelle 15,5 mol maleinsyreanhydrid, 9,5 mol fthal-syreanhydrid og 25,6 mol 1,2- propylengly-col forestret til en umettet polyester med syretall 42, hvis 65 pst.-ige oppløsning i styren ved 20°C hadde en viskositet på ca. 1200 cp. Stabiliseringen av den monomerfrie polyester skjedde med 0,01 pst. hydrokinon. In a total of 5 experiments, in each case 15.5 mol of maleic anhydride, 9.5 mol of phthalic anhydride and 25.6 mol of 1,2-propylene glycol were esterified to an unsaturated polyester with acid number 42, whose 65% solution in styrene at 20°C had a viscosity of approx. 1200 cp. The stabilization of the monomer-free polyester took place with 0.01 percent hydroquinone.
a) I tilsammen 3 forsøk ble i hvert tilfelle 3000 deler av de enkelte polyestere a) In a total of 3 trials, 3,000 parts of the individual polyesters were made in each case
sammen med 21 deler «magnesiumoxyd leicht, rein» under omrøring og overledning av en nitrogenstrøm oppvarmet i lø-pet av 1 time til 150 til 155°C og holdt ved denne temperatur i 1 time, hvorved den til å begynne med blakke blanding gikk over i en klar smelte. Efter avkjøling til 110°C ble de klare produkter i hvert tilfelle løst i styren til 65 pst.-ig konsentrasjon. Den erholdte polyesterformmasse hadde en viskositet ved 20°C på ca. 3400 cp. together with 21 parts "magnesium oxyd leicht, rein" under stirring and passing a stream of nitrogen heated in the course of 1 hour to 150 to 155°C and held at this temperature for 1 hour, whereby the initially cloudy mixture passed in a clear melt. After cooling to 110°C, the clear products were in each case dissolved in styrene to a 65% concentration. The resulting polyester molding compound had a viscosity at 20°C of approx. 3400 cp.
For disse produkter ble fortykningstiden med magnesiumoxyd bestemt. I denne hensikt ble prøvene av produktene revet med 1,5 pst. «magnesiumoxyd leicht, rein» på en valsemølle og lagret ved 20°C. For these products, the thickening time with magnesium oxide was determined. For this purpose, the samples of the products were shredded with 1.5% "magnesium oxyd leicht, rein" on a rolling mill and stored at 20°C.
b) Til sammenligning ble i 2 ytterligere forsøk fortykningstidene for polyesterformmasser fremstilt av de ovenfor nevnte magnesiumfrie polyestere bestemt på samme måte ved oppløsning i styren til 50 pst.-ig faststoffinnhold. Forsykningen ble hver gang utført ved tilsetning av 1,95 pst. magnesiumoxyd. Resultatene er gjengitt i tabell 4: b) For comparison, in 2 further experiments, the thickening times for polyester molding compounds produced from the above-mentioned magnesium-free polyesters were determined in the same way by dissolving in styrene to 50 percent solids content. The treatment was each time carried out by adding 1.95 percent magnesium oxide. The results are reproduced in table 4:
Eksempel 3. Example 3.
a) I tilsammen 3 forsøk ble i hvert tilfelle 2500 deler av forskjellige, i eksempel 1 a) In a total of 3 trials, in each case 2,500 parts were made of different ones, in example 1
fremstilte polyestere med i hvert tilfelle 15 deler «magnesiumoxyd leicht, rein» under omrøring og overledning av en nitrogen-strøm oppvarmet i løpet av 1 time til 150 til 155°C og holdt ved denne temperatur i y2 time. Efter avkjøling til 110°C ble de klare produkter i hvert tilfelle løst i styren til 54 pst.-ig faststoffinnhold. De erholdte polyesterformmasser hadde ved 20°C en viskositet på ca. 2400 cp. produced polyesters with in each case 15 parts "magnesium oxyd leicht, rein" under stirring and passing a stream of nitrogen heated in the course of 1 hour to 150 to 155°C and held at this temperature for y2 hours. After cooling to 110°C, the clear products were in each case dissolved in styrene to a solids content of 54%. The obtained polyester molding compounds had at 20°C a viscosity of approx. 2400 cp.
For disse produkter ble fortykningstidene med magnesiumoxyd bestemt. I denne hensikt ble prøvene av produktene revet med 1,91 pst. «magnesiumoxyd leicht, rein» på en valsemølle og lagret ved 20°C. lyesterformmassene fremstilt av de til-svarende magnesiumfrie pol(yestere bestemt på samme måte ved oppløsning i styren til 65 pst. faststoffinnhold. Fortykningen skjedde i hvert tilfelle ved tilsetning av 2,2 pst. magnesiumoxyd. Resultatene er gjengitt i tabell 6. For these products, the thickening times with magnesium oxide were determined. To this end, the samples of the products were ground with 1.91% "magnesium oxyd leicht, rein" on a roller mill and stored at 20°C. the lyester form masses produced from the corresponding magnesium-free polyesters determined in the same way by dissolving in styrene to 65 per cent solids content. Thickening took place in each case by adding 2.2 per cent magnesium oxide. The results are reproduced in table 6.
Disse eksempler viser den hurtigere og bedre reproduserbare fortykning av polyesterformmassene fremstilt ifølge oppfinnelsen med magnesiumoxyd ved det samme totale magnesiuminnhold. Hvis disse produkter sammen med magnesiumoxydet eller efter tilsetning av dette tilsettes herdningskatalysatorer såvel som fibre eller vev og eventuelt også andre fyllstoffer, så får man efter utløpet av fortykningstiden klebefrie polyesterpressmasser som ved oppvarming i løpet av få minutter kan presses til usmeltbare formdeler. De efter tilsetning av magnesiumoxydet erholdte fortykningstider ifølge de ovenfor angitte eksempler, påvirkes ikke av nærværet av herdningskatalysa torer. These examples show the faster and better reproducible thickening of the polyester molding compounds produced according to the invention with magnesium oxide at the same total magnesium content. If these products are added together with the magnesium oxide or after the addition of this, curing catalysts as well as fibers or tissues and possibly also other fillers, then after the end of the thickening time, you get adhesive-free polyester pressing compounds which, when heated, can be pressed into non-fusible molded parts within a few minutes. The thickening times obtained after the addition of the magnesium oxide according to the above-mentioned examples are not affected by the presence of curing catalysts.
Claims (1)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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SE8105029 | 1981-08-25 | ||
SE8201390 | 1982-03-05 | ||
PCT/SE1982/000258 WO1983000700A1 (en) | 1981-08-25 | 1982-08-13 | Method and apparatus for the production of asphalt concrete |
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Publication Number | Publication Date |
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NO831423L NO831423L (en) | 1983-04-22 |
NO156376B true NO156376B (en) | 1987-06-01 |
NO156376C NO156376C (en) | 1987-09-09 |
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Country | Link |
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AU (1) | AU8768982A (en) |
NO (1) | NO156376C (en) |
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1982
- 1982-08-13 AU AU87689/82A patent/AU8768982A/en not_active Abandoned
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1983
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NO831423L (en) | 1983-04-22 |
AU8768982A (en) | 1983-03-08 |
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