NO750510L - - Google Patents
Info
- Publication number
- NO750510L NO750510L NO750510A NO750510A NO750510L NO 750510 L NO750510 L NO 750510L NO 750510 A NO750510 A NO 750510A NO 750510 A NO750510 A NO 750510A NO 750510 L NO750510 L NO 750510L
- Authority
- NO
- Norway
- Prior art keywords
- polyoxymethylenes
- glass fibers
- contain
- weight
- glass fiber
- Prior art date
Links
- -1 polyoxymethylenes Polymers 0.000 claims description 17
- 239000003365 glass fiber Substances 0.000 claims description 14
- 229920006324 polyoxymethylene Polymers 0.000 claims description 13
- 235000013877 carbamide Nutrition 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 3
- HJYNGRZUBXMFGB-UHFFFAOYSA-N methoxymethylurea Chemical compound COCNC(N)=O HJYNGRZUBXMFGB-UHFFFAOYSA-N 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000009757 thermoplastic moulding Methods 0.000 claims 2
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 9
- 125000004432 carbon atom Chemical group C* 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- BGJSXRVXTHVRSN-UHFFFAOYSA-N 1,3,5-trioxane Chemical compound C1OCOCO1 BGJSXRVXTHVRSN-UHFFFAOYSA-N 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- WNXJIVFYUVYPPR-UHFFFAOYSA-N 1,3-dioxolane Chemical compound C1COCO1 WNXJIVFYUVYPPR-UHFFFAOYSA-N 0.000 description 2
- 150000001241 acetals Chemical class 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 125000001951 carbamoylamino group Chemical group C(N)(=O)N* 0.000 description 2
- 229920001519 homopolymer Polymers 0.000 description 2
- 239000012948 isocyanate Substances 0.000 description 2
- 150000002513 isocyanates Chemical class 0.000 description 2
- IVHGQRJQXVQZIL-UHFFFAOYSA-N 1,1,3-tris(methoxymethyl)urea Chemical compound COCNC(=O)N(COC)COC IVHGQRJQXVQZIL-UHFFFAOYSA-N 0.000 description 1
- DVGSFCGUHUBUNG-UHFFFAOYSA-N 1,3-bis(ethoxymethyl)urea Chemical compound CCOCNC(=O)NCOCC DVGSFCGUHUBUNG-UHFFFAOYSA-N 0.000 description 1
- UZOPFGGJIFOEEY-UHFFFAOYSA-N 1,3-bis(methoxymethyl)-1,3-diazinan-2-one Chemical compound COCN1CCCN(COC)C1=O UZOPFGGJIFOEEY-UHFFFAOYSA-N 0.000 description 1
- CNZVQCYTFMIBMO-UHFFFAOYSA-N 1,3-bis(methoxymethyl)imidazolidin-2-one Chemical compound COCN1CCN(COC)C1=O CNZVQCYTFMIBMO-UHFFFAOYSA-N 0.000 description 1
- XKALZGSIEJZJCZ-UHFFFAOYSA-N 1,3-bis(methoxymethyl)urea Chemical compound COCNC(=O)NCOC XKALZGSIEJZJCZ-UHFFFAOYSA-N 0.000 description 1
- VDFVNEFVBPFDSB-UHFFFAOYSA-N 1,3-dioxane Chemical compound C1COCOC1 VDFVNEFVBPFDSB-UHFFFAOYSA-N 0.000 description 1
- CZLMRJZAHXYRIX-UHFFFAOYSA-N 1,3-dioxepane Chemical compound C1CCOCOC1 CZLMRJZAHXYRIX-UHFFFAOYSA-N 0.000 description 1
- UOQHMTMTPKALAZ-UHFFFAOYSA-N 1-methoxy-1,3-dimethylurea Chemical compound CNC(=O)N(C)OC UOQHMTMTPKALAZ-UHFFFAOYSA-N 0.000 description 1
- LHZGEGQZBPULEQ-UHFFFAOYSA-N 3,5-bis(methoxymethyl)-1,3,5-oxadiazinan-4-one Chemical compound COCN1COCN(COC)C1=O LHZGEGQZBPULEQ-UHFFFAOYSA-N 0.000 description 1
- 239000004129 EU approved improving agent Substances 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- 229930040373 Paraformaldehyde Natural products 0.000 description 1
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- CDQSJQSWAWPGKG-UHFFFAOYSA-N butane-1,1-diol Chemical compound CCCC(O)O CDQSJQSWAWPGKG-UHFFFAOYSA-N 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 150000004292 cyclic ethers Chemical class 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 125000001033 ether group Chemical group 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 125000000623 heterocyclic group Chemical group 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 150000001282 organosilanes Chemical class 0.000 description 1
- 150000002924 oxiranes Chemical class 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 125000005704 oxymethylene group Chemical group [H]C([H])([*:2])O[*:1] 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 125000006413 ring segment Chemical group 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 150000003672 ureas Chemical class 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Description
Det er kjent å forsterke polyoksymetylener med glassfibre; It is known to reinforce polyoxymethylenes with glass fibers;
ved hjelp av denne forholdsregel kan polyoksymetylenenes stivhet økes betraktelig, hvorved deres anvendelsesmuligheter kan utvides. with the help of this precaution, the rigidity of the polyoxymethylenes can be increased considerably, whereby their application possibilities can be expanded.
Utilfredsstillende er imidlertid i alminnelighet forbedringen av den strekkfasthet som kan oppnås ved glassfiberforsterk-ningen av polyoksymetylener. Det har derfor ikke manglet på forsøk på å forbedre glassfiberforsterkede polyoksymetyleners strekkfasthet. Således er det i GB-PS 1 178 344 beskrevet en fremgangsmåte ved hvilken glassfiberforsterkede polyoksymetylener fremstilles med betydelige omkostninger•ved polymerisering av formaldehyd i nær-vær av glassfibre som er forsynt med bestemte klebemidler. I US-PS However, the improvement in the tensile strength that can be achieved by the glass fiber reinforcement of polyoxymethylenes is generally unsatisfactory. There has therefore been no shortage of attempts to improve the tensile strength of glass fiber reinforced polyoxymethylenes. Thus, GB-PS 1 178 344 describes a method by which glass fiber-reinforced polyoxymethylenes are produced at considerable cost by polymerization of formaldehyde in the presence of glass fibers that are provided with specific adhesives. In US PS
3 455 867 er det beskrevet en fremgangsmåte etter hvilken glassfiberforsterkede polyoksymetylener med gode egenskaper kan fremstilles ved innarbeidelse av polyfunksjonelle isocyanater.Isocyanater er imidlertid på grunn av sin giftighet ikke uproblematiske å behandle.Foruten forbedringen av strekkfastheten er det ønskelig å forbedre slagseigheten. Oppfinnelsen tar således sikte på å finne en enkel fremgangsmåte til fremstilling av glassfiberforsterkede polyoksymetylener med god strekkfasthet. Denne oppgave er i henhold til oppfinnelsen løst ved at man til de glassfiberforsterkede polyoksymetylener tilblander en liten mengde, 0,1-5,0 vekt%, av alkoksymetylurinstoffer med formelen 1 2Restene R eller R kan være like eller forskjellige. De betyr forgrenede eller uforgrenede alkylgrupper med 1-10karbonatomer. R 3 og R 4kan være hydrogenatomer eller alkylrester. Dess-3 4 3 455 867 describes a method according to which glass fiber reinforced polyoxymethylenes with good properties can be produced by incorporating polyfunctional isocyanates. However, because of their toxicity, isocyanates are not unproblematic to process. In addition to improving the tensile strength, it is desirable to improve the impact strength. The invention thus aims to find a simple method for the production of glass fiber-reinforced polyoxymethylenes with good tensile strength. According to the invention, this task is solved by mixing a small amount, 0.1-5.0% by weight, of alkoxymethyl ureas with the formula 1 2 The residues R or R can be the same or different to the glass fiber reinforced polyoxymethylenes. They mean branched or unbranched alkyl groups with 1-10 carbon atoms. R 3 and R 4 can be hydrogen atoms or alkyl radicals. Dess-3 4
uten kan restene R og R sammen med den nabostilte ureidogruppe without the residues R and R together with the neighboring ureido group
utgjøre en heterocyklisk ring med fortrinnsvis 5-6 ringatomer. Ringen kan foruten de to nitrogenatomer i ureido-grupperingen inneholde et oksygenatom og kan ennvidere være substituert med alkylgrupper med opp til 6 karbonatomer. Resten R 3 kan også betegne form a heterocyclic ring with preferably 5-6 ring atoms. In addition to the two nitrogen atoms in the ureido grouping, the ring may contain an oxygen atom and may further be substituted with alkyl groups with up to 6 carbon atoms. The residue R 3 can also denote
5 5 5 5
resten -CH20R , hvor R betyr en alifatisk rest med 1-10 karbonatomer. the residue -CH20R, where R means an aliphatic residue with 1-10 carbon atoms.
Forbindelser med den generelle formel I er eksempelvis: N,N'-dimetoksymetylurinstoff, N, N'-dietoksymetylurinstoff; N-metoksy-metyl-N1-metylurinstoff; N,N-dimetyl-N<1->metoksymetylurinstoff; N,N,N'-trimetoksymetylurinstoff; N, N'-dimetoksymetyl-2-oksoheksa-hydropyrimidin; N,N'-dimetoksymetyl-2-okso-imidazolidin; N,N'-dime-toksymetyl-4-okso-tetrahydro-l,3,5-oksadiazin; N, N 1-dimetoksymetyl-2-okso-5,5-dimetyl-heksahydro-pyrimidin. Compounds with the general formula I are, for example: N,N'-dimethoxymethylurea, N,N'-diethoxymethylurea; N-methoxy-methyl-N1-methylurea; N,N-dimethyl-N<1->methoxymethylurea; N,N,N'-trimethoxymethylurea; N,N'-dimethoxymethyl-2-oxohexa-hydropyrimidine; N,N'-dimethoxymethyl-2-oxo-imidazolidine; N,N'-dimethoxymethyl-4-oxo-tetrahydro-1,3,5-oxadiazine; N,N 1-Dimethoxymethyl-2-oxo-5,5-dimethyl-hexahydro-pyrimidine.
Den foretrukne mengde av alkoksymetylenurinstoff er 0,5-2,5 vekt%. Urinstoffene kan fremstilles på i og for seg kjent måte.Glassfibrene som anvendes til forsterkning av polyoksymetylenene, The preferred amount of alkoxymethylene urea is 0.5-2.5% by weight. The ureas can be produced in a manner known per se. The glass fibers used to reinforce the polyoxymethylenes,
er fortrinnsvis alkali-fattige E-glassfibre med en diameter på 5-20, fortrinnsvis 8-15^,um. Deres midlere lengde i de forsterkede blan-dinger ligger mellom 0,05 og 1,0 mm, fortrinnsvis mellom 0,1 og 0,50 mm.Glassfibrene anvendes i regelen i mengder på 10-50%, beregnet på polyoksymetylenet. are preferably alkali-poor E-glass fibers with a diameter of 5-20, preferably 8-15 µm. Their average length in the reinforced mixtures is between 0.05 and 1.0 mm, preferably between 0.1 and 0.50 mm. The glass fibers are generally used in quantities of 10-50%, calculated on the polyoxymethylene.
Glassfibrene er på kjent måte forsynt med belegg og heftefor-bedrende midler på organosilanbasis. The glass fibers are provided in a known manner with coatings and adhesion-improving agents on an organosilane basis.
Polyoksymetylener i oppfinnelsens mening er homopolymerer av formaldehyd og kopolymerer av formaldehyd eller trioksan med cykliske og lineære formaler, som for eksempel 1,3-dioksolan, butan-diolformal eller epoksyder som etylen- eller propylen-oksyd. Polyoxymethylenes in the sense of the invention are homopolymers of formaldehyde and copolymers of formaldehyde or trioxane with cyclic and linear formals, such as 1,3-dioxolane, butane-diol formal or epoxides such as ethylene or propylene oxide.
Homopolymerene skal inneholde termisk stabile endegrupper, som for eksempel ester- eller etergrupper. Kopolymerene av trioksan skal inneholde mer enn 50%, fortrinnsvis mer enn 75% oksymetylengrup-per og minst ca. 0,1% av grupper av komonomeren som innfører minst to nabokarbonatomer i kjeden. Slike kopolymerer kan fremstilles på kjent måte ved kationisk kopolymerisering av trioksan og egnede ko-monomerer, som for eksempel cykliske etere eller acetaler som ety-lenoksyd, 1,3-dioksolan, 1,3-dioksan, 1,3-dioksacykloheptan, eller lineære oligo- eller polyformaler eller acetaler, som for eksempel polydioksolan, polybutandiolformal og lignende. The homopolymers must contain thermally stable end groups, such as ester or ether groups. The copolymers of trioxane must contain more than 50%, preferably more than 75% oxymethylene groups and at least approx. 0.1% of groups of the comonomer that introduce at least two neighboring carbon atoms into the chain. Such copolymers can be prepared in a known manner by cationic copolymerization of trioxane and suitable co-monomers, such as for example cyclic ethers or acetals such as ethylene oxide, 1,3-dioxolane, 1,3-dioxane, 1,3-dioxacycloheptane, or linear oligo- or polyformals or acetals, such as polydioxolane, polybutanediol formal and the like.
Polymerene kan inneholde de vanlige stabilisatorer mot varme og lys eller andre tilsetninger, som for eksempel fargestoffer. The polymers can contain the usual stabilizers against heat and light or other additives, such as dyes.
innblandingen av alkoksymetylolurinstoffene skjer hensikts- the mixing of the alkoxymethylolureas takes place expediently
messig sammen med glassfibrene og de øvrige tilsetninger på i og for seg kjent måte, for eksempel ved hjelp av en egnet ekstruder. Glassfibrene kan tilsettes i form av forgarn eller som oppkuttet glass-silke. together with the glass fibers and the other additives in a manner known per se, for example by means of a suitable extruder. The glass fibers can be added in the form of yarn or as chopped glass silk.
Eksempel:Example:
Polyoksymetylenene og glassfibre med 6 mm lengde smeltes i en enkeltvirkende ekstruder (Einwellenextruder), eventuelt under tilsetning av alkoksymetylolurinstoffene. Den ved 200°C homogeni-serte blanding utpresses i form av en streng gjennom en dyse og granuleres. Av granulatet blir det ved 200°C fremstilt prøvelege-mer ved sprøyting, og de mekaniske verdier bestemmes. The polyoxymethylenes and glass fibers with a length of 6 mm are melted in a single-acting extruder (Einwellen extruder), optionally with the addition of the alkoxymethylolureas. The mixture homogenized at 200°C is extruded in the form of a string through a nozzle and granulated. Samples are produced from the granulate at 200°C by spraying, and the mechanical values are determined.
Forsøksresultatene er sammenstilt i Tabell 1. The test results are compiled in Table 1.
Claims (2)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19742408534 DE2408534C3 (en) | 1974-02-22 | Reinforced polyoxymethylene molding compounds |
Publications (1)
Publication Number | Publication Date |
---|---|
NO750510L true NO750510L (en) | 1975-08-25 |
Family
ID=5908159
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO750510A NO750510L (en) | 1974-02-22 | 1975-02-17 |
Country Status (2)
Country | Link |
---|---|
IT (1) | IT1029690B (en) |
NO (1) | NO750510L (en) |
-
1975
- 1975-02-11 IT IT4811675A patent/IT1029690B/en active
- 1975-02-17 NO NO750510A patent/NO750510L/no unknown
Also Published As
Publication number | Publication date |
---|---|
IT1029690B (en) | 1979-03-20 |
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