NO116485B - - Google Patents
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- Publication number
- NO116485B NO116485B NO15059163A NO15059163A NO116485B NO 116485 B NO116485 B NO 116485B NO 15059163 A NO15059163 A NO 15059163A NO 15059163 A NO15059163 A NO 15059163A NO 116485 B NO116485 B NO 116485B
- Authority
- NO
- Norway
- Prior art keywords
- weight
- parts
- glue
- polyvinyl acetate
- protein
- Prior art date
Links
- 239000003292 glue Substances 0.000 claims description 17
- 102000004169 proteins and genes Human genes 0.000 claims description 11
- 108090000623 proteins and genes Proteins 0.000 claims description 11
- 229920002689 polyvinyl acetate Polymers 0.000 claims description 10
- 239000011118 polyvinyl acetate Substances 0.000 claims description 10
- 235000013877 carbamide Nutrition 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- 239000011256 inorganic filler Substances 0.000 claims description 2
- 229910003475 inorganic filler Inorganic materials 0.000 claims description 2
- 150000003672 ureas Chemical class 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 description 10
- 230000001070 adhesive effect Effects 0.000 description 10
- 235000018102 proteins Nutrition 0.000 description 10
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 6
- 239000000839 emulsion Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 4
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 4
- 239000004202 carbamide Substances 0.000 description 4
- 238000001723 curing Methods 0.000 description 4
- 239000002023 wood Substances 0.000 description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 239000005018 casein Substances 0.000 description 3
- BECPQYXYKAMYBN-UHFFFAOYSA-N casein, tech. Chemical compound NCCCCC(C(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(CC(C)C)N=C(O)C(CCC(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(C(C)O)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(COP(O)(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(N)CC1=CC=CC=C1 BECPQYXYKAMYBN-UHFFFAOYSA-N 0.000 description 3
- 235000021240 caseins Nutrition 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 235000010469 Glycine max Nutrition 0.000 description 2
- 244000068988 Glycine max Species 0.000 description 2
- 229930040373 Paraformaldehyde Natural products 0.000 description 2
- 229920001807 Urea-formaldehyde Polymers 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 235000019270 ammonium chloride Nutrition 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 229920002866 paraformaldehyde Polymers 0.000 description 2
- ODGAOXROABLFNM-UHFFFAOYSA-N polynoxylin Chemical compound O=C.NC(N)=O ODGAOXROABLFNM-UHFFFAOYSA-N 0.000 description 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- -1 urea Chemical class 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000013007 heat curing Methods 0.000 description 1
- 238000009998 heat setting Methods 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
- 238000000034 method Methods 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B15/00—Nails; Staples
- F16B15/02—Nails; Staples with specially-shaped heads, e.g. with enlarged surfaces
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Portable Nailing Machines And Staplers (AREA)
- Adhesives Or Adhesive Processes (AREA)
Description
Koldt- og varmtherdende lagringsstabilt lim. Cold- and hot-curing storage-stable glue.
Det er allerede kjent på basis av polyvinylacetat-emulsjoner å framstille lim, f. eks. trelim. Slike polyvinylacetatlim bin-der rent fysikalsk uten at det derved fin-ner sted en kjemisk reaksjon eller om-setning. Disse lim har imidlertid en liten vannfasthet. It is already known to produce glue on the basis of polyvinyl acetate emulsions, e.g. wood glue. Such polyvinyl acetate adhesives bind purely physically without a chemical reaction or reaction taking place. However, these adhesives have a low water resistance.
Det er videre kjent at man av de proteiner som f. eks. kasein, sojaprotein etc, som er oppsluttet med alkaliske midler, slik It is also known that one of the proteins that e.g. casein, soya protein, etc., which are dissolved with alkaline agents, such
som f. eks. ammoniakk, natrium- eller kaliumhydroksyd o. 1., kan framstille trelim som nok har en utmerket hefteevne, men samtidig på grunn av sitt alkaliinn-hold har noen tungtveiende ulemper (som f. eks. den fryktede blekkflekkdannelse og fuktighetsømfintlighet), som hindrer en utbredt anvendelse av disse proteinlim. Disse lim må dessuten før bruken utrøres med vann, da de i denne tilstand er lag-ringsstabile bare i meget kort tid. like for example. ammonia, sodium or potassium hydroxide, etc., can produce wood glue which probably has excellent adhesion, but at the same time, due to its alkali content, has some weighty disadvantages (such as the dreaded ink stain formation and sensitivity to moisture), which prevents a widespread use of these protein glues. These glues must also be stirred with water before use, as in this condition they are only stable for a very short time.
Videre er det kjent å anvende urinstoff-formaldehyd-kondensasjonsprodukt-ter, som fortrinsvis er framstilt ved sur kondensasjon med hensiktsmessig egnede herdningskatalysatorer enten som koldt-eller (hyppigere) som varmeherdende trelim. Lagringsstabiliteten for slike urinstoff - formaldehydkondensatlim er begrenset ved en alltid fremadskridende autokondensa-sjonsprosess. Man regner i alminnelighet med en lagringstid på 3—4 måneder for slike kondensatlim, men som imidlertid er vidtgående avhengig av lagringstempera-turen. Furthermore, it is known to use urea-formaldehyde condensation products, which are preferably produced by acid condensation with appropriately suitable curing catalysts either as cold or (more often) as heat-curing wood glue. The storage stability of such urea-formaldehyde condensate glues is limited by an ever-advancing autocondensation process. A storage time of 3-4 months is generally expected for such condensate glues, but this is, however, largely dependent on the storage temperature.
Det ble nå funnet at man ved en be-stemt kombinasjon av de tre ovenfor nevn-te stoffer, dvs. av polyvinylacetat, protein og urinstoff kan framstille et nytt lag-ringsbestandig lim, idet man ikke behøver It was now found that by a specific combination of the three substances mentioned above, i.e. of polyvinyl acetate, protein and urea, a new storage-resistant adhesive can be produced, as one does not need
å oppslutte proteinene med de vanlige al-kalier. Et slik lim består ifølge forelig-gende oppfinnelse av en blanding som på 20—30 vektdeler polyvinylacetat, inneholder 10—15 vektdeler protein og 5—15 vektdeler karbamider, f. eks. urinstoff, tiourin-stoff o. 1. og 25—35 vektdeler anorganiske fyllstoffer. Hensiktsmessig blandes 10—15 vektdeler protein, 25—35 vektdeler fyllstoffer, 5—15 vektdeler urinstoff med en f. eks. 50 pst.'s polyvinylacetat-emulsjon i en mengde av 40—60 vektdeler. Mer for-delaktig anvendes polyvinylacetatemulsjo-ner som er fri for jonogene emulgatorer og fri for makromolekylære beskyttelses-kolloider. Egnede proteiner er f. eks. kasein, sojaprotein osv. Blandingen gir et flytende lim, som har en utmerket klebe-evne. For lagring anbefales det å tilsette limet et konserveringsmiddel, slik som f. eks. p-oksybensoesyreester i mengder inntil 0,5 pst. to dissolve the proteins with the usual alkalis. According to the present invention, such an adhesive consists of a mixture which contains 20-30 parts by weight of polyvinyl acetate, 10-15 parts by weight of protein and 5-15 parts by weight of carbamides, e.g. urea, thiourine etc. 1. and 25-35 parts by weight of inorganic fillers. Appropriately, 10-15 parts by weight of protein, 25-35 parts by weight of fillers, 5-15 parts by weight of urea are mixed with an e.g. 50% polyvinyl acetate emulsion in a quantity of 40-60 parts by weight. More advantageously, polyvinyl acetate emulsions are used which are free of ionogenic emulsifiers and free of macromolecular protective colloids. Suitable proteins are e.g. casein, soya protein, etc. The mixture produces a liquid glue, which has an excellent adhesive ability. For storage, it is recommended to add a preservative to the glue, such as e.g. p-oxybenzoic acid ester in amounts up to 0.5 percent.
Et på denne måte framstilt lim er holdbart i lengre tid uten ulemper. Dets vannfasthet holder overfor middels krav. Vil man øke limets vannfasthet, kan man blande blandingen kort før bruken med et herdemiddel, slik som f. eks. vandig for-maldehyd eller et stoff som avspalter det-te i mengder på 10 pst. eller mer og even-tuelt en tilsvarende herdningskatalysator, f. eks. et ammoniumsalt, slik som ammo-niumklorid osv. i mengder inntil 1 pst. An adhesive produced in this way is durable for a longer time without disadvantages. Its water resistance meets medium requirements. If you want to increase the glue's water resistance, you can mix the mixture shortly before use with a hardening agent, such as e.g. aqueous formaldehyde or a substance that splits it off in amounts of 10 percent or more and possibly a corresponding curing catalyst, e.g. an ammonium salt, such as ammonium chloride, etc. in amounts up to 1 percent.
Limet ifølge oppfinnelsen er ikke bare fritt for de ulemper som er nevnt ved de hittil kjente lim, men har dessuten den videre fordel at det ved herdning ved rom-temperatur bare langsomt herdes og til-later en tilstrekkelig tid for forarbeidelse. Ved anvendelse av varme derimot er det mulig å framkalle en rask herdning. Inn-holdet av polyvinylacetatemulsjon gjør at den endelige herdning først inntrer litt etter litt, således at forskjellige arbeider lar seg utføre uten verktøyslitasje. Avbin-dingstiden retter seg derved som ved alle varmtherdende lim, etter sjikttykkelsen, den relative fuktighet i de trestykker som skal limes sammen osv. Limet oppviser imidlertid også samme fordel som proteinlim, som i motsetning til kondensasjons-eller polyvinylacetatemulsjonslim også er anvendelig for en trykkløs sammenkleb-ning. Den forstyrrende formaldehydlukt, såfremt det anvendes paraformaldehyd, faller også bort. The adhesive according to the invention is not only free from the disadvantages mentioned for the previously known adhesives, but also has the further advantage that when cured at room temperature it only cures slowly and allows sufficient time for processing. By using heat, on the other hand, it is possible to induce rapid hardening. The content of polyvinyl acetate emulsion means that the final hardening only occurs little by little, so that various jobs can be carried out without tool wear. As with all heat-setting adhesives, the setting time is thereby adjusted according to the layer thickness, the relative humidity in the pieces of wood to be glued together, etc. However, the adhesive also has the same advantage as protein glue, which, in contrast to condensation or polyvinyl acetate emulsion glue, is also applicable for a pressureless bonding. The disturbing formaldehyde smell, if paraformaldehyde is used, also disappears.
Eksempel. Example.
50 vektdeler 50 pst.'s polyvinylacetat-emulsjon ble blandet med 10 vektdeler urinstoff, 12,5 vektdeler kasein, 27 vektde- 50 parts by weight of 50% polyvinyl acetate emulsion was mixed with 10 parts by weight of urea, 12.5 parts by weight of casein, 27 parts by weight of
ler kaolin og 0,5 vektdeler ammoniumklor-id og. innstilt med ca. 20 pst. vann til en strøkbar konsistens. Det således erholdte flytende lim er koldt- og varmtherdende samt lagringsegnet og kan anvendes direk-te til sammenklebninger. Vil man øke dets vannbestandighet, kan man før bruken tilsette det flytende lim 5 vektdeler paraformaldehyd. clay kaolin and 0.5 parts by weight of ammonium chloride and. set with approx. 20 percent water to a spreadable consistency. The liquid glue obtained in this way is cold- and hot-curing as well as suitable for storage and can be used directly for bonding. If you want to increase its water resistance, you can add 5 parts by weight of paraformaldehyde to the liquid glue before use.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE1182762 | 1962-11-05 | ||
| NL6411865A NL6411865A (en) | 1964-10-12 | 1964-10-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO116485B true NO116485B (en) | 1969-03-31 |
Family
ID=26643819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO15059163A NO116485B (en) | 1962-11-05 | 1963-10-28 |
Country Status (3)
| Country | Link |
|---|---|
| FI (1) | FI42901B (en) |
| GB (1) | GB1040188A (en) |
| NO (1) | NO116485B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4852559A (en) * | 1988-04-21 | 1989-08-01 | Ira Chernoff | Device for pinning bone fractures |
-
1963
- 1963-10-24 FI FI208163A patent/FI42901B/fi active
- 1963-10-28 NO NO15059163A patent/NO116485B/no unknown
- 1963-11-04 GB GB4342963A patent/GB1040188A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1040188A (en) | 1966-08-24 |
| FI42901B (en) | 1970-08-03 |
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