AU2003203844B2 - Method for strengthening geological formations - Google Patents
Method for strengthening geological formations Download PDFInfo
- Publication number
- AU2003203844B2 AU2003203844B2 AU2003203844A AU2003203844A AU2003203844B2 AU 2003203844 B2 AU2003203844 B2 AU 2003203844B2 AU 2003203844 A AU2003203844 A AU 2003203844A AU 2003203844 A AU2003203844 A AU 2003203844A AU 2003203844 B2 AU2003203844 B2 AU 2003203844B2
- Authority
- AU
- Australia
- Prior art keywords
- oil
- component
- fatty acid
- acid triglycerides
- isocyanate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000000034 method Methods 0.000 title claims description 15
- 230000015572 biosynthetic process Effects 0.000 title claims description 11
- 238000005755 formation reaction Methods 0.000 title claims description 11
- 238000005728 strengthening Methods 0.000 title claims description 9
- 229920005862 polyol Polymers 0.000 claims description 17
- 150000003077 polyols Chemical class 0.000 claims description 17
- 239000003921 oil Substances 0.000 claims description 15
- 235000019198 oils Nutrition 0.000 claims description 15
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 12
- 229930195729 fatty acid Natural products 0.000 claims description 12
- 239000000194 fatty acid Substances 0.000 claims description 12
- -1 fatty acid triglycerides Chemical class 0.000 claims description 12
- 229920001228 polyisocyanate Polymers 0.000 claims description 12
- 239000005056 polyisocyanate Substances 0.000 claims description 12
- 239000011541 reaction mixture Substances 0.000 claims description 9
- 239000003245 coal Substances 0.000 claims description 8
- 235000010469 Glycine max Nutrition 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 235000019486 Sunflower oil Nutrition 0.000 claims description 4
- 239000000944 linseed oil Substances 0.000 claims description 4
- 235000021388 linseed oil Nutrition 0.000 claims description 4
- 239000002600 sunflower oil Substances 0.000 claims description 4
- 235000019483 Peanut oil Nutrition 0.000 claims description 3
- 239000004006 olive oil Substances 0.000 claims description 3
- 235000008390 olive oil Nutrition 0.000 claims description 3
- 239000000312 peanut oil Substances 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000010499 rapseed oil Substances 0.000 claims description 3
- 239000008159 sesame oil Substances 0.000 claims description 3
- 235000011803 sesame oil Nutrition 0.000 claims description 3
- 235000015112 vegetable and seed oil Nutrition 0.000 claims description 3
- 239000008158 vegetable oil Substances 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 description 22
- 239000012948 isocyanate Substances 0.000 description 16
- 150000002513 isocyanates Chemical class 0.000 description 16
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 11
- 229920000538 Poly[(phenyl isocyanate)-co-formaldehyde] Polymers 0.000 description 10
- UFTFJSFQGQCHQW-UHFFFAOYSA-N triformin Chemical compound O=COCC(OC=O)COC=O UFTFJSFQGQCHQW-UHFFFAOYSA-N 0.000 description 8
- 229920005749 polyurethane resin Polymers 0.000 description 7
- 239000011435 rock Substances 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 230000007306 turnover Effects 0.000 description 4
- 239000006260 foam Substances 0.000 description 3
- 235000011187 glycerol Nutrition 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 description 2
- 239000012975 dibutyltin dilaurate Substances 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920001451 polypropylene glycol Polymers 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- IAUKWGFWINVWKS-UHFFFAOYSA-N 1,2-di(propan-2-yl)naphthalene Chemical compound C1=CC=CC2=C(C(C)C)C(C(C)C)=CC=C21 IAUKWGFWINVWKS-UHFFFAOYSA-N 0.000 description 1
- YJTKZCDBKVTVBY-UHFFFAOYSA-N 1,3-Diphenylbenzene Chemical group C1=CC=CC=C1C1=CC=CC(C=2C=CC=CC=2)=C1 YJTKZCDBKVTVBY-UHFFFAOYSA-N 0.000 description 1
- 241000219198 Brassica Species 0.000 description 1
- 235000011331 Brassica Nutrition 0.000 description 1
- 244000068988 Glycine max Species 0.000 description 1
- 244000020551 Helianthus annuus Species 0.000 description 1
- 235000003222 Helianthus annuus Nutrition 0.000 description 1
- 240000006240 Linum usitatissimum Species 0.000 description 1
- 235000004431 Linum usitatissimum Nutrition 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 1
- 235000019484 Rapeseed oil Nutrition 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- ZFMQKOWCDKKBIF-UHFFFAOYSA-N bis(3,5-difluorophenyl)phosphane Chemical compound FC1=CC(F)=CC(PC=2C=C(F)C=C(F)C=2)=C1 ZFMQKOWCDKKBIF-UHFFFAOYSA-N 0.000 description 1
- OHJMTUPIZMNBFR-UHFFFAOYSA-N biuret Chemical compound NC(=O)NC(N)=O OHJMTUPIZMNBFR-UHFFFAOYSA-N 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 235000004426 flaxseed Nutrition 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000010517 secondary reaction Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 150000004670 unsaturated fatty acids Chemical class 0.000 description 1
- 235000021122 unsaturated fatty acids Nutrition 0.000 description 1
- AVWRKZWQTYIKIY-UHFFFAOYSA-N urea-1-carboxylic acid Chemical compound NC(=O)NC(O)=O AVWRKZWQTYIKIY-UHFFFAOYSA-N 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/14—Soil-conditioning materials or soil-stabilising materials containing organic compounds only
- C09K17/18—Prepolymers; Macromolecular compounds
- C09K17/30—Polyisocyanates; Polyurethanes
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/001—Improving soil or rock, e.g. by freezing; Injections
- E21D9/002—Injection methods characterised by the chemical composition used
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Mining & Mineral Resources (AREA)
- General Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Polyurethanes Or Polyureas (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Description
AUSTRALIA
PATENTS ACT 1990 COMPLETE SPECIFICATION NAME OF APPLICANT(S):: CarboTech Fosroc GmbH ADDRESS FOR SERVICE: DAVIES COLLISON CAVE Patent Attorneys 1 Little Collins Street, Melbourne, 3000.
INVENTION TITLE: Method for strengthening geological formations The following statement is a full description of this invention, including the best method of performing it known to me/us:- 5102 05-03-'09 16:24 FROM- T-983 P007/21 F-477 P OPEkitfPM2ros2ol spc 33.d.,-5s03400 -la- SThe invention relates to a method for strengthening geological formations in underground NO black (hard) coal mines, in which a polyurethane-producing reaction mixture, which contains a polyol component A and a polyisocyanate component B, is introduced into the formations to be reinforced via previously made boreholes where the reaction mixture is caused to react, wherein fatty acid triglycerides, which do not contain any isocyanate- 00 n reactive groups, are added to the polyisocyanate component B.
ci SFrom DE 34 33 928 C2 a method is known using polyurethane resin mixtures for 0 strengthening geological formations in black (hard) coal mining. By this method the coalbearing rock and also the coal are stabilised. In individual cases fires have occurred as a consequence of these applications. These events were found to have been caused since the reaction heat of the hardening resin created favourable conditions for the spontaneous combustion of the coal. The reaction heat and the reaction temperature in polyurethane resin mixtures is a result of the reaction of the polyisocyanate component B and the OH groups of the polyol component A and by the reaction of the polyisocyanates with water.
Conventional polyurethane resins for strengthening geological formations contain a significant excess ofNCO groups. Thus, in accordance with DE 34 33 928 C2, reaction mixtures with an isocyanate index of between 120 and 140 are preferred. Temperatures of between 130 and 150 0 C can occur as reaction temperatures, starting out from approx.
30°C. In the event however that water or hydrous substances are added whereby an isocyanate index of approx. 100 results, i.e. stoichiometric turnover, the temperatures can rise up to 1801C.
In order to reduce the reaction temperature, a variety of options are known in principle.
One option is to admix low-boiling inert substances, for instance fluorocarbons, which evaporate due to the reaction heat generated and due to the enthalpy of vaporisation contribute to reducing the reaction temperature. In addition a "dilution effect" occurs.
When applying this method, a light polyurethane foam is produced which in view of its inferior strength is not suitable for reinforcing rocks.
COMS ID No: ARCS-226110 Received by IP Australia: Time 16:30 Date 2009-03-05 05-03-'09 16:25 FROM- T-983 P888/021 F-477 P OFBREFaKIo™f. 4 M c3jL 39Oa o 0N -2- SA further alternative to achieve a reduction in the reaction temperature is the addition of ND non-volatile inert substances. The easiest method is the addition of liquid inert substances.
Towards this end, high-boiling plasticisers are used as a rule of the type customarily applied in the chemistry of plastics. They can be added to both components. However, in most cases the mechanical properties of the polyurethane resin product are impaired Sthereby. In particular, the hardness of the resulting end product deteriorates. In higher C concentrations, the inert substance tends to exude from the polymer matrix. This effect Sresults in an undesirable impairment of the adhesion properties.
It is also possible to admix solid fillers of the type customarily used in the chemistry of plastics. Whilst the pressure-related mechanical properties are generally improved thereby, the tension-related properties deteriorate, in particular the adhesion strength of the resins. In practical applications designed to strengthen rocks, it is greatly disadvantageous that the solid fillers have the tendency of settling from the liquid phase. Homogenisation of such separated systems in situ is not possible as a rule. It is difficult to achieve a stable dispersion in view of the low viscosities required in pumping and injection technology.
Liquids with a viscosity of >1000 mPa s cannot be processed with selfpriming pumps of the type customarily used in injection technology- A further alternative for temperature reduction is the reduction of the number of reactive groups by using components with higher molecular weights. This can be done simultaneously in both components where, on the polyol side, polyols with a lower OHcontent or lower OH-number can be used and, in the isocyanate side, prepolymers, i.e.
preadducts between polyol and excess isocyanate, can be used, In this way the viscosity is significantly increased on the one hand, and one the other hand the substances become softer, so that upon a significant reduction of the reaction temperature they no longer possess the stiffness required for rock reinforcement.
The decisive factor for the enthalpy of reaction generated is the molar turnover relative to the total mass of the components. The molar turnover is limited by that particular component which contains the lowest number of reactive groups. Reactive groups which COMS ID No: ARCS-226110 Received by IP Australia: Time 16:30 Date 2009-03-05 05-03-'09 16:25 FROM- T-983 P009/021 F-477 32PER\EFH2M.3i A544 V29pc .d M 0R 0 0 -3- Srepresent a stoichiometric excess in the other component do not contribute to the heat O evolution. In the event the molecular weight of only one component is increased whilst the volume ration of 1 I is retained, the stoichiometric ratio, which is expressed by the isocyanate index, is changed. Generally, the isocyanate index in rock strengthening systems is between 120 and 200, i.e. there is an excess of isocyanate, which is either lysed en in secondary reactions (allophanate or biuret reaction) or in reactions with water from the C environment, if present, or are preserved as unreacted isocyanate groups.
o In the event that the number of reactive groups on the polyol side are reduced, for instance by application of polyols with a lower OH number, and therefore the isocyanate index is increased, this leads to a temperature reduction under laboratory conditions. In practical applications this is, however, very problematic since the reaction with water from the environment leads to an additional temperature increase. For this reason it is advisable to keep the isocyanate index as low as possible.
If, on the other hand, the number of the reactive groups on the isocyanate side is reduced, for instance by using prepolymers, a reduction of the chemical turnover does not occur and, consequently, also no reduction of the reaction temperature, when starting out from an original isocyanate index of 160 until reaching an isocyanate index of 100 (i.e.
stoichiometric reaction). Only at lower isocyanate indices does a temperature reduction effect occur. The products thereby created are, however, too soft for rock stabilisation.
The present invention seeks to provide polyurethane resin mixtures wherein the reaction heat and therefore the reaction temperature are reduced and which react to produce at the same time a polyurethane resin product which is at least equally well suited for the strengthening of geological formations in coal mining, in particular with a view to the adhesion strength, as the traditional polyurethane resin systems. Further aims that the present invention seeks to achieve are easy production, sufficient storage stability as well as easy pumping capability and suitability for application in multiple use container systems customary in coal mining situations.
COMS ID No: ARCS-226110 Received by IP Australia: Time 16:30 Date 2009-03-05 05-03-'9 16:25 FROM- T-983 P010/021 F-477 P:PEREFW200320)S"zpt 332.6Doe-5/OYV 9 C -4- The present invention provides a method for strengthening geological formations in IN underground black (hard) coal mines, in which a polyurethane-producing reaction mixture, which contains a polyol component A and a polyisocyanate component B, is introduced into the formations to be reinforced via previously made boreholes where the reaction mixture is caused to react, wherein fatty acid triglycerides, which do not contain any M^ isocyanate-reactive groups, are added to the polyisocyanate component B. In some Cl embodiments, at least one native (virgin) oil, in particular at least one vegetable oil, Scomprising the fatty acid triglycerides is used. In some of these embodiments, the at least one native (virgin) oil is olive oil, peanut oil, rape oil, linseed oil, soy oil, sunflower oil or sesame oil or blends of these oils.
In certain embodiments, the fatty acid triglycerides are used at the rate of between 1 and of the polyisocyanate component B.
In accordance with the invention, fatty acid triglycerides, which do not contain isocyanate reactive groups are added to the polyisocyanate component B. The fatty acid triglycerides reduce the proportion of the isocyanate groups in the B component, that is the B component is diluted by the fatty acid triglycerides with regard to the isocyanate groups.
This dilution effect normally causes, as described above, a lesser adhesion, i.e. the products obtained are too soft for stabilisations in a mountain.
It was surprisingly found during the tests that the addition of fatty acid triglycerides to the isocyanate component only caused an inessential reduction of the mechanical strength.
Fatty acid triglycerides to be considered in the first place are native (virgin) oils, in particular vegetable oils, so for instance olive oil, peanut oil, rape oil, linseed oil, soy oil, sunflower oil and sesame oil. These oils are comparatively inexpensive and easily available. A decisive criterion for the selection of the suitable oil is the proportion of unsaturated fatty acids. Oils with a high proportion of these acids are particularly well suited, since they have a superior solubility in the isocyanate component.
COMS ID No: ARCS-226110 Received by IP Australia: Time 16:30 Date 2009-03-05 The invention is described below by reference to examples.
Examples The following raw materials were used: Polyol 1: trifunctional polyether polyol based on glycerine and propylene oxide with an OH number of 380 and a viscosity (25 0 C) of 450 mPa s.
Polyol 2: trifunctional polypropylene glycol with an OH number of 27 and a viscosity (25°C) of 1150 mPa s Polyol 3 tetrafunctional polypropylene glycol with an OH number of 60 and a viscosity (25 0 C) of 555 mPa s.
glycerine with an OH number of 1810 and a viscosity (20 0 C) of 1400 mPas dibutyl tin dilaurate
PMDI
polymeric diphenyl methane diisocyanate with an NCO content of 31.5% by weight and with a viscosity (25 0 C) of 200 mPas.
Softener 1 dibutyl phthalate with a viscosity (25°C) of 19 mPas Softener 2 diisopropyl naphthalene with a viscosity (25°C) of 10 mPas Softener 3 terphenyl with a viscosity (25°C) of 92 mPas Softener 4 solvent naphtha with a viscosity (25 0 C) of 800 1000 mPas Softener dioctyladipate with a viscosity (25 0 C) of 14 mPas Triglyceride 1 linseed oil (linum usitatissimum) Triglyceride 2 sunflower oil (helianthus annuus) Triglyceride 3 rape seed oil (brassica oleifera) Triglyceride 4 soy oil (soja hispida) Component A: Component B 1: 28.8 polyol 1 13.8 polyol 2 46.8 polyol 3 softener 1.0 glycerine 0.8 dibutyl tin dilaurate 0.8 water viscosity (25 0 C) 390 mPa s 80 PMDI softener 1 Component B2: Component B3: 80 PMDI softener 2 80 PMDI softener 3 80 PMDI softener 4 80% PMDI softener Component B4: Component B5: 05-03-'09 16:25 FROM- T-983 P011/021 F-477 roPEuFHeOB3203844 SO 32.AOe1OMW Component B6: Component B7: 80% PMDI triglyceride 1 80% PMDI triglyceride 2 80 PMDI triglyceride 3 80% PMDI triglyceride 4 Component RB8: Component B9: The polyol components A and the polyisocyanate components B were mixed in a volume ration I I and the properties of the reaction mixture were determined as follows: Adhesion: A rock prism of the dimensions 160 mm x 40 mm x 40 mm is broken in half and stored for 24 hours at 30°C and 80 relative humidity. The fractured surfaces are joined leaving a gap of 3 mm and this gap is sealed with the homogeneous reaction mixture at a starting temperature. Following storage at 30°C and 80 relative humidity, the bonded prism is subjected to a flexural stress test according to DIN EN 196, Part 1, wherein the load increase is 50 10 N/s. The adhesion strength is measured after 30 minutes and after 7 days.
Gross density The gross density is determined from the foam in the joints, whose volume is 3 mm x mm x 40 mm.
COMS ID No: ARCS-226110 Received by IP Australia: Time 16:30 Date 2009-03-05 05-03-'09 16:25 FROM- T-983 P012/021 F-477 r E~BrKszWo3~oas44pc 3a5'.EjoP3( -8- Maximum reaction temperature 100 ml of each of the components are homogeneously mixed at 23°C starting temperature in a 250 ml jar and the temperature change is observed by means of a Ni-Cr-Ni thermo element whose measuring junction is arranged in the centre of the foam and the maximum reaction temperature is determined.
Test results The test recipes were selected such that the stoichiometric ratio of NCO to the OH groups was around 1.45 (isocyanate index 145).
The test results are specified in the table below Example Recipe Adhesion at after 30 min [Mpa] I A+B1 0.5 2 A B2 0.7 3 A B3 0.7 4 A B4 0,7 A+B5 0.8 6 A B6 1.9 7 A B7 2.2 8 A B8 2.5 9 A B9 2.5 Adhesion at 30°C after 7 days [Mpa] 1.1 1.6 1.7 1.4 1.5 4.1 4.6 4.8 4.7 Gross density of the foam [kg/m 3 205 220 215 200 220 335 365 360 350 Max reaction temperature foci 103 102 103 104 102 104 103 103 103 Examples 6 to 9 show that with the use of triglyeerides in accordance with the invention compared with the use of customarily used commercially available softeners an improvement of the adhesion strength may be achieved.
COMS ID No: ARCS-226110 Received by IP Australia: Time 16:30 Date 2009-03-05 9 Throughout this specification and the claims which follow, unless the context requires otherwise, the word "comprise", and variations such as "comprises" and "comprising", will be understood to imply the inclusion of a stated integer or step or group of integers or steps but not the exclusion of any other integer or step or group of integers or steps.
The reference to any prior art in this specification is not, and should not be taken as, an acknowledgement or any form of suggestion that that prior art forms part of the common general knowledge in Australia.
Claims (2)
- 05-03-'09 16:25 FROM- T-983 P013/021 F-477 P oPER\EFH2320344 W 332.do-YM 3r'39 0 S- THE CLAIMS DEFINING THE INVENTION ARE AS FOLLOWS: 1. A method for strengthening geological formations in underground black (hard) coal mines, in which a polyurethane-producing reaction mixture, which contains a polyol component A and a polyisocyanate component B, is introduced into the formations to be 00 Sreinforced via previously made boreholes where the reaction mixture is caused to react, Swherein fatty acid triglycerides, which do not contain any isocyanate-reactive groups, are added to the polyisocyanate component B. 2. A method according to claim 1, wherein at least one native (virgin) oil comprising the fatty acid triglycerides is used. 3. A method according to claim 2, wherein the at least one native (virgin) oil is at least one vegetable oil. 4. A method according to claim 2 or 3, wherein the at least one native (virgin) oil is olive oil, peanut oil, rape oil, linseed oil, soy oil, sunflower oil or sesame oil or blends of these oils. 5. A method according to any one of claims I to 4, wherein the fatty acid triglycerides are used at the rate of between 1 and 30 of the polyisocyanate component B.
- 6. A method substantially as hereinbefore described with reference to the Examples, excluding Examples 1 to COMS ID No: ARCS-226110 Received by IP Australia: Time 16:30 Date 2009-03-05
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10218718.5 | 2002-04-26 | ||
| DE2002118718 DE10218718C1 (en) | 2002-04-26 | 2002-04-26 | Consolidation of geological formation in underground coal mining using a polyurethane-forming mixture of polyol and polyisocyanate components with an added fatty acid triglyceride without isocyanate-reactive groups |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU2003203844A1 AU2003203844A1 (en) | 2003-11-13 |
| AU2003203844B2 true AU2003203844B2 (en) | 2009-04-02 |
Family
ID=7714439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2003203844A Expired AU2003203844B2 (en) | 2002-04-26 | 2003-04-23 | Method for strengthening geological formations |
Country Status (3)
| Country | Link |
|---|---|
| AU (1) | AU2003203844B2 (en) |
| DE (2) | DE10218718C1 (en) |
| PL (1) | PL203391B1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10218718C1 (en) * | 2002-04-26 | 2003-03-27 | Carbotech Fosroc Gmbh | Consolidation of geological formation in underground coal mining using a polyurethane-forming mixture of polyol and polyisocyanate components with an added fatty acid triglyceride without isocyanate-reactive groups |
| DE502005010239D1 (en) * | 2004-10-21 | 2010-10-21 | Minova Int Ltd | METHOD FOR SETTING GESTURE ANCHORS |
| KR100836606B1 (en) | 2005-08-15 | 2008-06-10 | 롬 앤드 하아스 컴패니 | Polymeric diluents for structural adhesives |
| US20070037955A1 (en) * | 2005-08-15 | 2007-02-15 | Richards James L | Polymeric diluents for structural adhesives |
| FR2918385B1 (en) * | 2007-07-05 | 2009-09-04 | Rhodia Operations Sas | OIL FORMULATION FOR THE PREVENTION OF WATER COMES IN UNDERGROUND FORMATIONS |
| WO2013073981A1 (en) * | 2011-11-15 | 2013-05-23 | Gridnev Alexei Alexeevich | Adhesive composition, composite and foam made of this adhesive composition |
| WO2013115669A1 (en) * | 2012-02-02 | 2013-08-08 | Gridnev Alexei Alexeevich | Adhesive composition, composite and foam made of this adhesive composition |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4904125A (en) * | 1988-05-10 | 1990-02-27 | Bayer Aktiengesellschaft | Process for strengthening geological formations |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3433928C2 (en) * | 1984-09-15 | 1994-01-20 | Bergwerksverband Gmbh | Process for the consolidation of geological formations |
| DE10114651C1 (en) * | 2001-03-24 | 2002-05-08 | Carbotech Fosroc Gmbh | Consolidation of a geological formation in an underground coal mine by introducing a reaction mixture which forms a polyurethane, uses polyol component containing polyether polyol with solid organic filler formed in situ, and plasticizer |
| DE10218718C1 (en) * | 2002-04-26 | 2003-03-27 | Carbotech Fosroc Gmbh | Consolidation of geological formation in underground coal mining using a polyurethane-forming mixture of polyol and polyisocyanate components with an added fatty acid triglyceride without isocyanate-reactive groups |
-
2002
- 2002-04-26 DE DE2002118718 patent/DE10218718C1/en not_active Withdrawn - After Issue
-
2003
- 2003-04-05 DE DE10315610A patent/DE10315610B4/en not_active Expired - Lifetime
- 2003-04-23 AU AU2003203844A patent/AU2003203844B2/en not_active Expired
- 2003-04-24 PL PL359835A patent/PL203391B1/en unknown
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4904125A (en) * | 1988-05-10 | 1990-02-27 | Bayer Aktiengesellschaft | Process for strengthening geological formations |
Also Published As
| Publication number | Publication date |
|---|---|
| PL359835A1 (en) | 2003-11-03 |
| AU2003203844A1 (en) | 2003-11-13 |
| DE10315610A1 (en) | 2003-11-27 |
| DE10218718C1 (en) | 2003-03-27 |
| DE10315610B4 (en) | 2004-04-15 |
| PL203391B1 (en) | 2009-09-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2003203844B2 (en) | Method for strengthening geological formations | |
| JPS5879083A (en) | Ground former and method of enhancing and sealing artificial ground of rocks, soil and coal | |
| US20050148678A1 (en) | Water curable polyurethane compositions and uses thereof | |
| CN104024298A (en) | Method for the preparation of microcellular polyurethane elastomers | |
| CN1986641B (en) | Encapsulating polyurethane material recipe and encapsulating material containing said recipe | |
| EP2746358A1 (en) | Polyurea silicate resin for wellbore application | |
| CN104194603A (en) | Polycarbonate polyurethane water-proof paint | |
| CA1115891A (en) | Cartridge for securing stay bars in bore holes | |
| US20090182085A1 (en) | Polyurethane-based retention, covering, filling and reinforcement composition | |
| CN101921383B (en) | Two liquid type polyurethane resin composition | |
| CN114456350A (en) | Silicate modified high-molecular foaming material for filling and sealing | |
| AU779419B2 (en) | Method for strengthening geological formations | |
| CN110662781B (en) | Polyurethane-based adhesive system | |
| AU2016376643B2 (en) | Sealant for floor joints with a high resistance to fuels | |
| CA2184107A1 (en) | Foam plastic from disposable pressurized containers | |
| WO2004104063A2 (en) | Water curable polyurethane compositions with improved viscosity characteristics | |
| CN103025780A (en) | Reactive isocyanate-terminated prepolymers for binder applications | |
| JP5447650B2 (en) | Organic polyisocyanate composition, water-stopping material-forming composition, and water-swellable water-stopping material | |
| WO2019109327A1 (en) | Two-part foamable polyurea-polyurethane adhesive composition | |
| AU2014342768B2 (en) | Syntactic polyurethane elastomers for use in subsea pipeline insulation | |
| JP2023034972A (en) | Chemical composition for ground injection | |
| RU2346958C2 (en) | Double-component material | |
| WO2011122180A1 (en) | Polyurethane resin-forming composition and hydroinflating water-sealing material for steel sheet pile | |
| KR102271847B1 (en) | Curable Composition | |
| Dang et al. | Polyurethanes for Sealants |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PC1 | Assignment before grant (sect. 113) |
Owner name: MINOVA CARBOTECH GMBH Free format text: FORMER APPLICANT(S): CARBOTECH FOSROC GMBH Owner name: MINOVA INTERNATIONAL LIMITED Free format text: FORMER APPLICANT(S): MINOVA CARBOTECH GMBH |
|
| FGA | Letters patent sealed or granted (standard patent) | ||
| GM | Mortgages registered |
Name of requester: BZ COMMERCIAL FINANCE DESIGNATED ACTIVITY COMPANY |
|
| MK14 | Patent ceased section 143(a) (annual fees not paid) or expired |