SE516982C2 - Process for linseed oil impregnation of cellulose-based products - Google Patents
Process for linseed oil impregnation of cellulose-based productsInfo
- Publication number
- SE516982C2 SE516982C2 SE9903622A SE9903622A SE516982C2 SE 516982 C2 SE516982 C2 SE 516982C2 SE 9903622 A SE9903622 A SE 9903622A SE 9903622 A SE9903622 A SE 9903622A SE 516982 C2 SE516982 C2 SE 516982C2
- Authority
- SE
- Sweden
- Prior art keywords
- autoclave
- linseed oil
- product
- temperature
- oil
- Prior art date
Links
- 235000021388 linseed oil Nutrition 0.000 title claims abstract description 39
- 239000000944 linseed oil Substances 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000005470 impregnation Methods 0.000 title claims abstract description 13
- 229920002678 cellulose Polymers 0.000 title claims abstract description 5
- 239000001913 cellulose Substances 0.000 title claims abstract description 5
- 239000002023 wood Substances 0.000 claims abstract description 23
- 239000003921 oil Substances 0.000 claims abstract description 20
- 235000019198 oils Nutrition 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000009835 boiling Methods 0.000 claims abstract description 8
- GVJHHUAWPYXKBD-UHFFFAOYSA-N d-alpha-tocopherol Natural products OC1=C(C)C(C)=C2OC(CCCC(C)CCCC(C)CCCC(C)C)(C)CCC2=C1C GVJHHUAWPYXKBD-UHFFFAOYSA-N 0.000 claims description 5
- 229960001295 tocopherol Drugs 0.000 claims description 5
- 229930003799 tocopherol Natural products 0.000 claims description 5
- 235000010384 tocopherol Nutrition 0.000 claims description 5
- 239000011732 tocopherol Substances 0.000 claims description 5
- GVJHHUAWPYXKBD-IEOSBIPESA-N α-tocopherol Chemical compound OC1=C(C)C(C)=C2O[C@@](CCC[C@H](C)CCC[C@H](C)CCCC(C)C)(C)CCC2=C1C GVJHHUAWPYXKBD-IEOSBIPESA-N 0.000 claims description 5
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 claims description 2
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 claims description 2
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 claims description 2
- OYHQOLUKZRVURQ-HZJYTTRNSA-N Linoleic acid Chemical compound CCCCC\C=C/C\C=C/CCCCCCCC(O)=O OYHQOLUKZRVURQ-HZJYTTRNSA-N 0.000 claims description 2
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims description 2
- 239000005642 Oleic acid Substances 0.000 claims description 2
- DTOSIQBPPRVQHS-PDBXOOCHSA-N alpha-linolenic acid Chemical compound CC\C=C/C\C=C/C\C=C/CCCCCCCC(O)=O DTOSIQBPPRVQHS-PDBXOOCHSA-N 0.000 claims description 2
- 235000020661 alpha-linolenic acid Nutrition 0.000 claims description 2
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 claims description 2
- 235000020778 linoleic acid Nutrition 0.000 claims description 2
- OYHQOLUKZRVURQ-IXWMQOLASA-N linoleic acid Natural products CCCCC\C=C/C\C=C\CCCCCCCC(O)=O OYHQOLUKZRVURQ-IXWMQOLASA-N 0.000 claims description 2
- 229960004488 linolenic acid Drugs 0.000 claims description 2
- KQQKGWQCNNTQJW-UHFFFAOYSA-N linolenic acid Natural products CC=CCCC=CCC=CCCCCCCCC(O)=O KQQKGWQCNNTQJW-UHFFFAOYSA-N 0.000 claims description 2
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims description 2
- 235000021313 oleic acid Nutrition 0.000 claims description 2
- 150000003626 triacylglycerols Chemical class 0.000 claims description 2
- 238000007599 discharging Methods 0.000 abstract 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 3
- 241000018646 Pinus brutia Species 0.000 description 3
- 235000011613 Pinus brutia Nutrition 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 241000218657 Picea Species 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 241000218631 Coniferophyta Species 0.000 description 1
- 206010041662 Splinter Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/34—Organic impregnating agents
- B27K3/44—Tar; Mineral oil
- B27K3/48—Mineral oil
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/02—Processes; Apparatus
- B27K3/0278—Processes; Apparatus involving an additional treatment during or after impregnation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/02—Processes; Apparatus
- B27K3/08—Impregnating by pressure, e.g. vacuum impregnation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
- B27K5/001—Heating
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
- Glass Compositions (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
Abstract
Description
io 15 20 25 30 35 n n ø p n. u 516 982 2 överföres sedan i kall olja varigenom en viss förbättrad impregneringseffekt erhålles. De kända metoderna är emel- lertid otillfredsställande när det gäller att erhålla en impregneringsgrad som ger långvarigt skydd mot angrepp av mikroorganismer som förekommer i naturen, exempelvis mik- roorganismflora med aggressiv brunröta. io 15 20 25 30 35 n n ø p n. u 516 982 2 is then transferred to cold oil whereby a certain improved impregnation effect is obtained. However, the known methods are unsatisfactory when it comes to obtaining a degree of impregnation which provides long-term protection against attack by microorganisms which occur in nature, for example microorganism flora with aggressive brown rot.
Föreliggande uppfinning har till ändamål att åstad- komma ett förfarande för linoljeimpregnering av cellulo- sabaserade produkter, speciellt trä, varvid det nya för- farandet ger väsentligt förbättrad skyddsverkan, speci- ellt genom att förfarandet möjliggör en högre upptag- ningsnivå.The object of the present invention is to provide a process for linseed oil impregnation of cellulose-based products, in particular wood, whereby the new process provides significantly improved protective effect, especially in that the process enables a higher level of uptake.
Ett annat ändamål med uppfinningen är att åstadkomma ett flerstegsförfarande, som utnyttjar ett inledande upp- hettningssteg varvid vatten i ångform och innesluten luft avgår från produkten, och ett efterföljande steg där man tar till vara resultatet av vatten- och luftavgången så att oljeupptagningen kan förbättras. Ännu ett ändamål med uppfinningen är att åstadkomma ett förfarande, vid vilket man omväxlande utnyttjar vaku- um i kombination med hög temperatur och därefter kylning i kombination med övertryck.Another object of the invention is to provide a multi-step process which utilizes an initial heating step in which water in vapor form and entrapped air leaves the product, and a subsequent step in which the result of the water and air discharge is used so that the oil uptake can be improved. Yet another object of the invention is to provide a process in which vacuum is used alternately in combination with high temperature and then cooling in combination with overpressure.
Ett speciellt ändamål med uppfinningen är att man vid förfarandet tillser att övergången från vakuum- värmningssteget till tryck-kylsteget sker kontinuerligt så att maximal utnyttjning av denna övergång uppnås.A special object of the invention is that in the process it is ensured that the transition from the vacuum heating step to the pressure-cooling step takes place continuously so that maximum utilization of this transition is achieved.
För dessa och andra ändamål som kommer att framgå av den fortsatta beskrivningen åstadkommes genom uppfinning- en ett förfarande för impregnering av cellulosabaserade produkter, speciellt trä, med linolja, varvid produkterna behandlas med linolja vid förhöjd temperatur under tryck i autoklav. Uppfinningen karakteriseras av följande del- steg: a) autoklaven chargeras med aktuell produkt, b) linolja upphettad till en temperatur överstigande vattnets kokpunkt tillföres autoklaven så att produkten omslutes av linoljan, ÅC--Cl 14:13 2:\l-7i:XIFÉIÉÃI~IBXÉÉÉI9É'ïêl :fl-:É =§ÉV}.l95~'9~-&fi--~S'=. 1552315? '10 15 20 25 30 35 516 982 3 c) under konstanthällning av temperaturen sätts au- toklaven under vakuum, varvid vatten i àngform och i pro- dukten innesluten luft avgår fràn produkten, d) linoljan avtappas från autoklaven under samtidig tillförsel av linolja med en temperatur understigande vattnets kokpunkt och autoklaven företrädesvis sätts un- der övertryck, och e) den kalla oljan avtappas fràn autoklaven, som eventuellt för avlägsnande av överskottsolja från produk- ten äter sätts under vakuum, varefter den impregnerade produkten avlägsnas från autoklaven.For these and other purposes which will appear from the following description, the invention provides a process for impregnating cellulose-based products, especially wood, with linseed oil, the products being treated with linseed oil at elevated temperature under autoclave pressure. The invention is characterized by the following sub-steps: a) the autoclave is charged with the product in question, b) linseed oil heated to a temperature exceeding the boiling point of the water is added to the autoclave so that the product is enclosed by the linseed oil, ÅC - Cl 14:13 2: \ l-7i: XIFÉIÉÃI ~ IBXÉÉÉI9É'ïêl: fl-: É = §ÉV} .l95 ~ '9 ~ - & fi-- ~ S' =. 1552315? '10 15 20 25 30 35 516 982 3 c) while constantly raising the temperature, the autoclave is placed under vacuum, whereby water in vapor form and air enclosed in the product leaves the product, d) the linseed oil is drained from the autoclave while simultaneous supply of linseed oil with a temperature below the boiling point of the water and the autoclave is preferably pressurized, and e) the cold oil is drained from the autoclave, which may be evacuated from the product to remove excess oil from the product, after which the impregnated product is removed from the autoclave.
Förfarandet enligt föreliggande uppfinning bygger i princip pà det nya konceptet att autoklavens omställning frän het linolja under vakuum sker kontinuerligt genom att samtidigt som den heta linoljan avtappas fràn auto- klaven kall linolja tillföres och autoklaven successivt sätts under övertryck. Genom detta förfaringssätt utnytt- jas maximalt det vakuum i produkten som uppstår under värme och vakuum sä att maximal upptagning av linolja sker i anslutning till tillförsel av kall linolja och försâttning av autoklaven under övertryck.The process according to the present invention is in principle based on the new concept that the conversion of the autoclave from hot linseed oil under vacuum takes place continuously by simultaneously while the hot linseed oil is drained from the autoclave cold linseed oil is supplied and the autoclave is successively pressurized. Through this procedure, the maximum vacuum in the product that arises during heat and vacuum is utilized so that maximum uptake of linseed oil takes place in connection with the supply of cold linseed oil and displacement of the autoclave under overpressure.
I föreliggande framställning innebär sålunda ut- trycken “het linolja" och "kall linolja" att oljans tem- peratur i det första fallet överstiger vattnets kokpunkt, respektive i det senare fallet understiger vattnets kok- punkt.Thus, in the present invention, the terms "hot linseed oil" and "cold linseed oil" mean that the temperature of the oil in the first case exceeds the boiling point of the water, and in the latter case falls below the boiling point of the water.
I delsteg a) är det lämpligt att upphetta linoljan till en temperatur av ca 140-180°C, medan i det senare delsteget c) det är föredraget att autoklaven försättes under ett övertryck av upp till ca 15 bar, exempelvis från ca 5 till ca 12 bar.In sub-step a) it is suitable to heat the linseed oil to a temperature of about 140-180 ° C, while in the latter sub-step c) it is preferred that the autoclave is pressurized under up to about 15 bar, for example from about 5 to about 12 bar.
I kylningssteget d) hälles den kalla linoljans tem- peratur lämpligen inom intervallet ca +75 till ca +85°C.In the cooling step d), the temperature of the cold linseed oil is suitably poured in the range of about +75 to about + 85 ° C.
Vid förfarandet enligt föreliggande uppfinning är det speciellt föredraget att för impregneringen använda en processad linolja som till övervägande delen består av linolensyra, linolsyra och oleinsyra, främst i form av s; Q lO 15 20 25 30 35 516 982 4 triglycerider, varvid dess innehåll av fri tokoferol un- derstiger ca 100 ppm. Linoljans innehåll av fri tokoferol understiger lämpligen ca 75 ppm och i synnerhet ca 50 ppm. Detaljer beträffande sådan processad linolja och förfarandet för deras framställning återfinnes i SE- patentansökan nr 9903621-2. Innehållet i denna parallell- ansökan får anses ingå i föreliggande patentansökan genom hänvisningen till densamma.In the process according to the present invention, it is especially preferred to use for the impregnation a processed linseed oil which consists predominantly of linolenic acid, linoleic acid and oleic acid, mainly in the form of s; Q 10 15 20 25 30 35 516 982 4 triglycerides, wherein its content of free tocopherol is less than about 100 ppm. The content of free tocopherol in linseed oil is suitably less than about 75 ppm and in particular about 50 ppm. Details regarding such processed linseed oil and the process for their production can be found in SE Patent Application No. 9903621-2. The content of this parallel application may be considered to be included in the present patent application by reference thereto.
Slutligen kan förfarandet i ett ytterligare slutligt delsteg torkas i en luftström av omgivningstemperatur.Finally, the process in an additional final sub-step can be dried in a stream of air of ambient temperature.
Föreliggande uppfinning innefattar även produkter, speciellt trävaror, framställda genom ovan beskrivet för- farande.The present invention also includes products, especially wood products, made by the process described above.
Uppfinningen kommer i det följande att närmare be- skrivas i anslutning till icke inskränkande exempel, vari mängden procentangivelser avser vikten om ej annat anges.The invention will be described in more detail below in connection with non-limiting examples, in which the amount of percentages refers to the weight unless otherwise stated.
EXEMPEL 1 Impregneringsprocedur I anslutning till impregneringsproceduren användes svensk kallpressad linolja från 1998 àrs skörd.EXAMPLE 1 Impregnation procedure In connection with the impregnation procedure, Swedish cold-pressed linseed oil from the 1998 harvest was used.
I en autoklav tillföres aktuellt virke, i förelig- gande fall stavar vilka ströats och förankrats. Autokla- ven tillföres linolja uppvärmd till en temperatur inom intervallet ca 140 till ca l80°C, exempelvis ca l60°C och autoklaven fylles upp sä att virket helt omsluts av lin- oljan. Temperaturen hålls vid konstant värde medan auto- klaven försättes under vakuum. Genom den höga temperatur som trävirket upphettas till och under inverkan av vakuu- et föràngas vattnet och vattenånga tillsammans med luft avgår ur virkets porsystem.In an autoclave, the relevant timber is added, in the present case rods which have been sprinkled and anchored. The autoclave is supplied with linseed oil heated to a temperature in the range of about 140 to about 180 ° C, for example about 160 ° C, and the autoclave is filled so that the wood is completely surrounded by the linseed oil. The temperature is kept at a constant value while the autoclave is placed under vacuum. Due to the high temperature that the wood is heated to and under the influence of the vacuum, the water evaporates and water vapor together with air leaves the pore system of the wood.
Efter avslutad värmebehandling som äger rum under en tidrymd av ca l h utbytes den heta oljan kontinuerligt mot kall olja genom att den heta oljan pumpas ut ur auto- klaven medan kall olja samtidigt pumpas in nedtill i au- toklaven. Samtidigt med detta utbyte av het olja mot kall olja växlas successivt trycket i autoklaven från vakuum 10 15 20 25 30 35 Q . | ø en u u 516 982 5 olja växlas successivt trycket i autoklaven fràn vakuum till ett övertryck om ca 10 bar. Den kalla oljans tempe- ratur hålles inom intervallet ca +75 till ca 85°C. Vid nedkylningen av virket skapas ett undertryck i dess por- system, varigenom impregneringsolja lättare tränger in i virket så att upptagningsnivàn ökar.After heat treatment, which takes place over a period of about 1 hour, the hot oil is continuously exchanged for cold oil by pumping the hot oil out of the autoclave while cold oil is simultaneously pumped into the bottom of the autoclave. Simultaneously with this exchange of hot oil for cold oil, the pressure in the autoclave is successively switched from vacuum. | ø a u u 516 982 5 oil gradually changes the pressure in the autoclave from vacuum to an overpressure of about 10 bar. The temperature of the cold oil is kept in the range of about +75 to about 85 ° C. When the wood cools down, a negative pressure is created in its pore system, as a result of which impregnation oil penetrates more easily into the wood so that the absorption level increases.
Efter avslutad behandling i autoklaven får virket torka i en sval luftström med en temperatur av ca 20°C eller lägre, varvid eventuellt oljeöverskott ytterligare intränger i virket. Detta slutsteg har till funktion att förhindra att olja genom eftersvettning tränger ut ur det impregnerade virket.After completion of treatment in the autoclave, the wood is allowed to dry in a cool air stream with a temperature of about 20 ° C or lower, whereby any excess oil penetrates further into the wood. This final step has the function of preventing oil from penetrating out of the impregnated wood by post-sweating.
EXEMPEL 2 Impregneringsresultat Det virke som görs till föremål för impregnering kan vara av varjehanda slag. Inriktningen i Sverige är för närvarande mot de vanligaste barrträden, nämligen gran och fur. Virket kan vara i olika grad färskt eller tor- kat, dvs innehålla olika mängder fukt.EXAMPLE 2 Impregnation results The wood that is made subject to impregnation can be of all kinds. The focus in Sweden is currently on the most common conifers, namely spruce and pine. The wood can be fresh or dried to varying degrees, ie contain different amounts of moisture.
De olika processtegens varaktighet i tiden får an- passas till virkets parametrar (dimension, fuktkvot, trä- slag, kärna och/eller splint) samt till den eftersträvade upptagningsnivån. Upptagningsnivån kan anges i mängd lin- olja per m3 eller procent av virkets torrdensitet som är ca 450 kg/m3 , och vidare med hänsyn till det impregnera- de virkets tilltänkta användning. Ju högre upptagningsni- vå som erhålles desto bättre beständighet får virket och desto svårare förhållanden klarar virket av vid dess praktiska användning.The duration of the various process steps over time may be adapted to the parameters of the timber (dimension, moisture ratio, type of wood, core and / or splinter) and to the desired level of uptake. The uptake level can be stated in the amount of linseed oil per m3 or percent of the dry density of the wood, which is approximately 450 kg / m3, and further with regard to the intended use of the impregnated wood. The higher the uptake level obtained, the better the durability of the wood and the more difficult conditions the wood can withstand in its practical use.
Olika typer av virke har genom förfarandet enligt uppfinningen provimpregnerats, och i följande tabell an- ges dessa virkesslag och de erhållna upptagningsnivàerna. 10 516 982 6 TABELL Virkesslag Upptagningsnivà (densitet 450 kg/n? ca% _ ca kg/n? Furusplint 100% 450 kg/m3 Furukärna 40% 180 kg/m3 Gransplint 40% 180 kg/HP Grankärna 20% 90 kg/m3 Virke som impregnerats till höga upptagningsnivåer, dvs upp till 100%, kan enligt pågående tester klara lång tid under mycket svåra förhållanden, dvs fritt utomhus i mark eller i markkontakt.Various types of wood have been sample impregnated by the method according to the invention, and in the following table these types of wood and the uptake levels obtained are given. 10 516 982 6 TABLE Timber type Uptake level (density 450 kg / n? Approx.% _ Approx. Kg / n? Pine terminal 100% 450 kg / m3 Pine core 40% 180 kg / m3 Spruce terminal 40% 180 kg / HP Spruce core 20% 90 kg / m3 Wood that has been impregnated to high uptake levels, ie up to 100%, can, according to ongoing tests, last a long time under very difficult conditions, ie freely outdoors in the ground or in ground contact.
Det bör observeras att föreliggande uppfinning ej är inskränkt till de konkreta utföringsformer som exemplifi- erats ovan. Sålunda kan modifikationer och ändringar ut- föras inom uppfinningens ram och sådana ändringar och mo- difikationer inses lätt av fackmannen på området.It should be noted that the present invention is not limited to the concrete embodiments exemplified above. Thus, modifications and changes may be made within the scope of the invention, and such changes and modifications will be readily apparent to those skilled in the art.
Claims (10)
Priority Applications (18)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE9903622A SE516982C2 (en) | 1999-10-07 | 1999-10-07 | Process for linseed oil impregnation of cellulose-based products |
| DK00970374T DK1237687T3 (en) | 1999-10-07 | 2000-09-26 | Proofing process |
| EP00970374A EP1237687B1 (en) | 1999-10-07 | 2000-09-26 | Method of impregnation |
| HU0204152A HUP0204152A2 (en) | 1999-10-07 | 2000-09-26 | Method of impregnation |
| PCT/SE2000/001863 WO2001024982A1 (en) | 1999-10-07 | 2000-09-26 | Method of impregnation |
| CA002386503A CA2386503A1 (en) | 1999-10-07 | 2000-09-26 | Method of impregnation |
| EEP200200179A EE05058B1 (en) | 1999-10-07 | 2000-09-26 | Impregnation method |
| CNB008138435A CN1158169C (en) | 1999-10-07 | 2000-09-26 | Dipping method |
| SK440-2002A SK4402002A3 (en) | 1999-10-07 | 2000-09-26 | Method of impregnation of cellulose-based products |
| NZ518171A NZ518171A (en) | 1999-10-07 | 2000-09-26 | Method of impregnation of cellulose material with linseed oil |
| CZ20021109A CZ297778B6 (en) | 1999-10-07 | 2000-09-26 | Impregnation process of products based on cellulose |
| JP2001527963A JP2003511258A (en) | 1999-10-07 | 2000-09-26 | Impregnation method |
| MXPA02003442A MXPA02003442A (en) | 1999-10-07 | 2000-09-26 | Method of impregnation. |
| PL354288A PL191345B1 (en) | 1999-10-07 | 2000-09-26 | Method of impregnation |
| DE60003460T DE60003460T2 (en) | 1999-10-07 | 2000-09-26 | IMPREGNIERUNGSVERFAHREN |
| AU79766/00A AU754796C (en) | 1999-10-07 | 2000-09-26 | Method of impregnation |
| AT00970374T ATE243096T1 (en) | 1999-10-07 | 2000-09-26 | IMPREGNATION PROCESS |
| NO20021635A NO321255B1 (en) | 1999-10-07 | 2002-04-05 | Procedure for impregnation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE9903622A SE516982C2 (en) | 1999-10-07 | 1999-10-07 | Process for linseed oil impregnation of cellulose-based products |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| SE9903622D0 SE9903622D0 (en) | 1999-10-07 |
| SE9903622L SE9903622L (en) | 2001-04-08 |
| SE516982C2 true SE516982C2 (en) | 2002-04-02 |
Family
ID=20417282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE9903622A SE516982C2 (en) | 1999-10-07 | 1999-10-07 | Process for linseed oil impregnation of cellulose-based products |
Country Status (18)
| Country | Link |
|---|---|
| EP (1) | EP1237687B1 (en) |
| JP (1) | JP2003511258A (en) |
| CN (1) | CN1158169C (en) |
| AT (1) | ATE243096T1 (en) |
| AU (1) | AU754796C (en) |
| CA (1) | CA2386503A1 (en) |
| CZ (1) | CZ297778B6 (en) |
| DE (1) | DE60003460T2 (en) |
| DK (1) | DK1237687T3 (en) |
| EE (1) | EE05058B1 (en) |
| HU (1) | HUP0204152A2 (en) |
| MX (1) | MXPA02003442A (en) |
| NO (1) | NO321255B1 (en) |
| NZ (1) | NZ518171A (en) |
| PL (1) | PL191345B1 (en) |
| SE (1) | SE516982C2 (en) |
| SK (1) | SK4402002A3 (en) |
| WO (1) | WO2001024982A1 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2003903242A0 (en) * | 2003-06-25 | 2003-07-10 | The University Of Melbourne | Process for the treatment of wood |
| NZ531217A (en) | 2004-02-18 | 2005-12-23 | Nz Forest Research Inst Ltd | Impregnation process |
| FR2927564B1 (en) * | 2008-02-14 | 2012-01-13 | Ct Valorisation Ind Agro Ressources | PROCESS FOR TREATING WOOD WITH AGENTS OF NATURAL ORIGIN |
| CN101239477B (en) * | 2008-02-26 | 2012-05-23 | 侯梦斌 | Method for recovering extracted substance in wood modification process |
| CN105171888B (en) * | 2015-09-17 | 2017-10-10 | 浙江永裕竹业股份有限公司 | A kind of preparation method for recombinating bamboo profile |
| EP4313527A1 (en) | 2021-03-25 | 2024-02-07 | Peter Klaas | A combined process of hydrolysis and esterification of wood |
| CN113246246B (en) * | 2021-06-17 | 2022-07-01 | 北京林业大学 | A method for liquid phase drying and heat treatment of small diameter wood |
| WO2024002448A1 (en) * | 2022-06-29 | 2024-01-04 | Alpha Holding Brande Aps | Elevated pressure hybrid wood modification |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3968276A (en) * | 1972-10-25 | 1976-07-06 | Diversified Wood Products, Inc. | Process for the preservation of wood |
| DK172239B1 (en) * | 1991-05-07 | 1998-02-02 | Ulrich Schirnig | Process for quality improvement, such as improved preservation, of wood blanks by impregnating them |
| HU9203611D0 (en) * | 1992-11-18 | 1993-04-28 | Pal Csecsei | Method for impregnating or simultaneous impregnating and drying of wood |
| US5652023A (en) * | 1996-02-29 | 1997-07-29 | Chemical Specialties, Inc. | Fixation process for heat-fixable preservative treated wood |
| DE19715664A1 (en) * | 1997-04-16 | 1998-10-22 | Butzbacher Weichenbau Gmbh | Process for impregnating solids |
-
1999
- 1999-10-07 SE SE9903622A patent/SE516982C2/en not_active IP Right Cessation
-
2000
- 2000-09-26 AU AU79766/00A patent/AU754796C/en not_active Ceased
- 2000-09-26 DE DE60003460T patent/DE60003460T2/en not_active Expired - Fee Related
- 2000-09-26 NZ NZ518171A patent/NZ518171A/en unknown
- 2000-09-26 EP EP00970374A patent/EP1237687B1/en not_active Expired - Lifetime
- 2000-09-26 CA CA002386503A patent/CA2386503A1/en not_active Abandoned
- 2000-09-26 AT AT00970374T patent/ATE243096T1/en not_active IP Right Cessation
- 2000-09-26 DK DK00970374T patent/DK1237687T3/en active
- 2000-09-26 CN CNB008138435A patent/CN1158169C/en not_active Expired - Fee Related
- 2000-09-26 WO PCT/SE2000/001863 patent/WO2001024982A1/en not_active Ceased
- 2000-09-26 PL PL354288A patent/PL191345B1/en not_active IP Right Cessation
- 2000-09-26 CZ CZ20021109A patent/CZ297778B6/en not_active IP Right Cessation
- 2000-09-26 EE EEP200200179A patent/EE05058B1/en not_active IP Right Cessation
- 2000-09-26 HU HU0204152A patent/HUP0204152A2/en unknown
- 2000-09-26 JP JP2001527963A patent/JP2003511258A/en active Pending
- 2000-09-26 MX MXPA02003442A patent/MXPA02003442A/en active IP Right Grant
- 2000-09-26 SK SK440-2002A patent/SK4402002A3/en unknown
-
2002
- 2002-04-05 NO NO20021635A patent/NO321255B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| SE9903622L (en) | 2001-04-08 |
| NO20021635D0 (en) | 2002-04-05 |
| EE200200179A (en) | 2003-04-15 |
| EP1237687A1 (en) | 2002-09-11 |
| NO20021635L (en) | 2002-06-05 |
| AU754796C (en) | 2003-06-26 |
| SK4402002A3 (en) | 2002-10-08 |
| AU754796B2 (en) | 2002-11-28 |
| DE60003460D1 (en) | 2003-07-24 |
| EE05058B1 (en) | 2008-08-15 |
| DE60003460T2 (en) | 2004-03-18 |
| AU7976600A (en) | 2001-05-10 |
| CA2386503A1 (en) | 2001-04-12 |
| WO2001024982A1 (en) | 2001-04-12 |
| NO321255B1 (en) | 2006-04-10 |
| EP1237687B1 (en) | 2003-06-18 |
| MXPA02003442A (en) | 2004-09-10 |
| SE9903622D0 (en) | 1999-10-07 |
| PL354288A1 (en) | 2003-12-29 |
| CN1377307A (en) | 2002-10-30 |
| CZ297778B6 (en) | 2007-03-28 |
| ATE243096T1 (en) | 2003-07-15 |
| CZ20021109A3 (en) | 2003-01-15 |
| HUP0204152A2 (en) | 2003-03-28 |
| DK1237687T3 (en) | 2003-08-25 |
| CN1158169C (en) | 2004-07-21 |
| NZ518171A (en) | 2003-09-26 |
| JP2003511258A (en) | 2003-03-25 |
| PL191345B1 (en) | 2006-05-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NUG | Patent has lapsed |