DK145611B - Impraegneringsmiddel til murvaerk og uorganiske oxider - Google Patents
Impraegneringsmiddel til murvaerk og uorganiske oxider Download PDFInfo
- Publication number
- DK145611B DK145611B DK289071AA DK289071A DK145611B DK 145611 B DK145611 B DK 145611B DK 289071A A DK289071A A DK 289071AA DK 289071 A DK289071 A DK 289071A DK 145611 B DK145611 B DK 145611B
- Authority
- DK
- Denmark
- Prior art keywords
- masonry
- inorganic oxides
- wallworks
- improving agents
- alkyl
- Prior art date
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- 229910052809 inorganic oxide Inorganic materials 0.000 title description 5
- 239000004129 EU approved improving agent Substances 0.000 title 1
- 239000003795 chemical substances by application Substances 0.000 description 13
- 125000000217 alkyl group Chemical group 0.000 description 11
- 239000000243 solution Substances 0.000 description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- 239000000758 substrate Substances 0.000 description 5
- SXPLZNMUBFBFIA-UHFFFAOYSA-N butyl(trimethoxy)silane Chemical compound CCCC[Si](OC)(OC)OC SXPLZNMUBFBFIA-UHFFFAOYSA-N 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000005470 impregnation Methods 0.000 description 3
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 3
- 239000003960 organic solvent Substances 0.000 description 3
- 239000005871 repellent Substances 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 125000003545 alkoxy group Chemical group 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000005046 Chlorosilane Substances 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 206010053317 Hydrophobia Diseases 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
- RSPISYXLHRIGJD-UHFFFAOYSA-N OOOO Chemical compound OOOO RSPISYXLHRIGJD-UHFFFAOYSA-N 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- 206010037742 Rabies Diseases 0.000 description 1
- 229910018557 Si O Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910002808 Si–O–Si Inorganic materials 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 150000001242 acetic acid derivatives Chemical class 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000001476 alcoholic effect Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- KOPOQZFJUQMUML-UHFFFAOYSA-N chlorosilane Chemical class Cl[SiH3] KOPOQZFJUQMUML-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000010409 ironing Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 150000001282 organosilanes Chemical class 0.000 description 1
- 150000003961 organosilicon compounds Chemical class 0.000 description 1
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical class [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Inorganic materials [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 1
- -1 silicon organic compounds Chemical class 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/46—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
- C04B41/49—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes
- C04B41/4905—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes containing silicon
- C04B41/4922—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes containing silicon applied to the substrate as monomers, i.e. as organosilanes RnSiX4-n, e.g. alkyltrialkoxysilane, dialkyldialkoxysilane
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/46—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
- C04B41/49—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes
- C04B41/4905—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes containing silicon
- C04B41/495—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes containing silicon applied to the substrate as oligomers or polymers
- C04B41/4961—Polyorganosiloxanes, i.e. polymers with a Si-O-Si-O-chain; "silicones"
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/27—Web or sheet containing structurally defined element or component, the element or component having a specified weight per unit area [e.g., gms/sq cm, lbs/sq ft, etc.]
- Y10T428/273—Web or sheet containing structurally defined element or component, the element or component having a specified weight per unit area [e.g., gms/sq cm, lbs/sq ft, etc.] of coating
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31652—Of asbestos
- Y10T428/31663—As siloxane, silicone or silane
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Aftertreatments Of Artificial And Natural Stones (AREA)
- Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
Description
(19) DANMARK
|j| Π2) FREMLÆGGELSESSKRIFT <n) 145611b
DIREKTORATET FOR PATENT- OG VAREMÆRKEVÆSENET
(21) Ansøgning nr. 2890/71 (51) intCI.3 C 0 9 D 3/82 (22) Indleveringsdag 1^· Jun. 1971 C 04 B 41/28 (24) Løbedag 14. Jun. 1971 (41) Aim. tilgængelig 16. dec. 1971 (44) Fremlagt 27· dec. 1982 (86) International ansøgning nr.
(86) International indleveringsdag (85) Videreførelsesdag - (62) Stamansøgning nr. -
(30) Prioritet 15- jun. I97O, 2029446, DE
(71) Ansøger DYNAMIT NOBEL AKTIENGESELLSCHAFT, 521 Troisdorf, DE.
(72) Opfinder Claus-Dietrich Seller, DE.
(74) Fuldmægtig Dansk Patent Kontor ApS.
(54) imprægneringsmiddel til murværk og uorganiske oxider.
Opfindelsen angår et middel til at gøre murværk og uorganiske oxider vandafvisende bestående af alkylalkoxysilanholdige produkter, der er opløst i et organisk opløsningsmiddel, hvilket middel er ejendommeligt ved det i kravets kendetegnende del angivne.
Det er kendt, at man kan anvende vandige, stærkt natriumalkaliske meth-ylsiliconatopløsninger til imprægnering af murværk. Imprægnering med sådanne opløsninger er dog forbundet med afgørende ulemper; således forårsager opløsningens store alkaliindhold en langsom afbinding af OQ organosiliciumforbindelserne på de imprægnerede overflader, og endvi- r- dere optræder der saltudskillelser på murværket som følge af natrium- ^ hydroxidets afbinding med kulsyre eller andre sure bestanddele af luf- •O ten. Desuden er håndteringen af stærkt alkaliske opløsninger i praksis 3· *
D
2 145611 ikke uden problemer.
Fra beskrivelsen til DE patent nr.1.034.865 er det endvidere kendt at anvende i vand uopløselige harpikser af siliciumorganiske forbindelser opløst i organiske opløsningsmidler, især i carbonhydri-der. Imidlertid kan man kun imprægnere fuldstændigt tørt murværk med disse forbindelser. For øvrigt har man iagttaget, at murværk, der har været imprægneret med disse midler, hurtigere bliver tilsmudset end ubehandlet murværk, hvilket i betragtning af imprægneringsmidlets harpikskarakter er forståeligt, såfremt den på murværk-ket påførte harpiks ikke har undergået en fuldstændig udhærdning.
Desuden anvendes hydrolysater af forskellige alkyltrialkoxysilaner som imprægneringsmiddel til murværk.Som hydrolyserende middel anvendes her syrer, især eddikesyre. Men på grund af den anvendte eddikesyre forbliver der på murværket acetater, som virker fugtoptagende.
Fra tysk fremlæggelsesskrift nr.1.052.023 er det tillige kendt at anvende alkylalkoxysilanblandinger opløst i et organisk opløsningsmiddel til imprægnering af murværk.Disse midler kan ligeledes kun anvendes til tørt murværk.
Det har nu vist sig, at imprægneringsmidler til at gøre murværk og uorganiske oxider vandafvisende kan anvendes på en fugtig overflade, når ifølge opfindelsen der som alkylalkoxysilanholdige produkter anvendes alkyl trialkoxysilaner, hvor alkylgruppen er mættet og har 1-6 carbonatomer, og hvor alkoxygruppen fortrinsvis er en methoxy-eller ethoxygruppe, eller sådanne tilkondenserede produkter deraf, som gennemsnitlig har 1 til 2 alkoxygrupper pr. siliciumatom, og at dersom opløsningsmiddel anvendes en alkohol med 1-3 carbonatomer, fortrinsvis ethanol.
Disse opløsninger er egnet til hydrofobering af uorganiske, hydroxyl-gruppeholdige stoffer, især af murværksoverflader. Midlet ifølge opfindelsen har som anført ovenfor den særlige fordel, at det foruden til tørt murværk også kan anvendes til imprægnering af fugtigt murværk.
3 145611
Alkyltrialkoxysilanernes alkoxygrupper er fortrinsvis methoxy- eller ethoxy grupper. Alkyl trialkoxysilanemes alkylgrupper er mættede og har 1-6 carbonatomer, dvs. der er tale om methyl-, ethyl-, propyl-, butyl-, pentyl- og hexyltrialkoxysilaner eller deraf afledte, tilkondenserede produkter. Alkyltrialkoxysilanerne fås efter kendte fremgangsmåder ved forestring af de tilsvarende chlorsilaner (R-SiClj) med alkoholer; kondenserede alkyltrialkoxysilaner fås ved omsætning af esteren med vand og eventuel afdestillation af den frigjorte alkohol.
Hydrolysen af de i alkoholopløsning påførte monomere eller tilkondenserede organosilaner sker på selve underlaget. En understøttelse ved kemiske tilsætninger er ikke nødvendig. Som imprægneringsunderlag kan anvendes alle uorganiske materialer, der under en eller anden form er i besiddelse af hydroxylgruppeholdige dele, til hvilke Si-O-bindinger kan bindes. Hertil hører cement- og kalkholdige stoffer, især udvendigt puds på facader, samt stoffer som uorganiske oxider, især aluminium- og titanoxider.
Opløsningerne kan påføres de underlag, der skal imprægneres, ved påstrygning eller sprøjtning.
Den mængde, der skal påføres overfladen, afhænger i det væsentlige af dennes specielle struktur og af den ønskede hydrofobi-grad. Selv o så små mængder som 25 g/m af et imprægneringsmiddel, som består af en opløsning, der indeholder 20 vægt-% alkyltrialkoxysilan, giver gode resultater. Man kan imidlertid også anvende langt mere koncentrerede opløsninger, der kan indeholde op til 99 vægt-% alkyl-trialkoxysilaner; dog foretrækkes et imprægneringsmiddel med 20-85 vægt-% alkyltrialkoxysilaner, idet imprægneringsmidlet kan indeholde forskellige alkyltrialkoxysilaner. Ved anvendelse af alkoholiske opløsninger er virkningen uafhængig af, om underlaget før påføringen er tørt, eller om det har et vist fugtighedsindhold.
Den fulde vandafvisende virkning indtræder ca. 24 timer efter imprægneringen. Hvis det imprægnerede underlag bliver fugtigt i denne tid, skader det ikke, men det er tværtimod gavnligt for optræknings-processen.
4 145511
Det omhandlede imprægneringsmiddels fordele vises i det følgende ved hjælp af nogle eksempler.
De påførte opløsningers hydrofoberende virkninger blev undersøgt ved hjælp af cylindriske emner med følgende mål: cylinderdiameter p 10 cm, højde 3 cm, overflade ca.250 cm . Disse emner blev fremstillet af 1 del portlandcement og 4 dele af et i handelen værende sand med en komstørrelse på op til 4 mm. Imprægneringsmidlet blev påført emnerne ved pensling.
Efter en tørretid på 24 timer blev emnerne anbragt i bade med en vandstand på 10 cm, hvilket svarer til en vindhastighed på 130 km/time. Vandoptagelsen blev fulgt ved vejning. Den efterfølgende tabel giver oplysning om de med butyltrimethoxysilan (BTMOS) og tilkondenseret butyl trimethoxysilan (BTMOS-K) i ethanol som opløsningsmiddel opnåede resultater. Der blev anvendt et tilkondenseret butyltrimethoxysilan, som i gennemsnit indeholdt fem Si-O-Si-enheder og havde en molekylvægt på ca. 73^ svarende til et indhold af methoxygrupper på 50,7 vægt-%.
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Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2029446A DE2029446C3 (de) | 1970-06-15 | 1970-06-15 | Verfahren zum Imprägnieren von Mauerwerk, Beton und Fassadenaußenputz |
| DE2029446 | 1970-06-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DK145611B true DK145611B (da) | 1982-12-27 |
| DK145611C DK145611C (da) | 1983-06-20 |
Family
ID=5773997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK289071A DK145611C (da) | 1970-06-15 | 1971-06-14 | Impraegneringsmiddel til murvaerk og uorganiske oxider |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US3772065A (da) |
| AT (1) | AT322433B (da) |
| BE (1) | BE768507A (da) |
| CA (1) | CA942904A (da) |
| CH (1) | CH576918A5 (da) |
| DE (1) | DE2029446C3 (da) |
| DK (1) | DK145611C (da) |
| FR (1) | FR2097880A5 (da) |
| GB (1) | GB1350788A (da) |
| NL (1) | NL165136C (da) |
| NO (1) | NO134049C (da) |
| SE (1) | SE367616B (da) |
Families Citing this family (56)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2220378C2 (de) * | 1970-10-29 | 1984-10-04 | Dynamit Nobel Ag, 5210 Troisdorf | Oberflächenschutz poriger Materialien |
| DE2245927A1 (de) * | 1972-09-19 | 1974-04-04 | Wacker Chemie Gmbh | Verfahren zum wasserabweisendmachen von oberflaechen von baustoffen |
| DE2258901B2 (de) * | 1972-12-01 | 1980-11-06 | Dynamit Nobel Ag, 5210 Troisdorf | Imprägnieren von Mauerwerk mit neutral oder sauer reagierenden Oberflächen |
| US4002800A (en) * | 1972-12-01 | 1977-01-11 | Dynamit Nobel Aktiengesellschaft | Impregnation of masonry having a neutrally or acidly reaction surface |
| DE2526287C2 (de) * | 1975-06-12 | 1982-09-30 | Wacker-Chemie GmbH, 8000 München | Verfahren zum Öl- und Wasserabweisendmachen von offene Porosität aufweisenden Oberflächen normalerweise fester anorganischer Stoffe |
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| US2660736A (en) * | 1945-07-19 | 1953-12-01 | Owens Corning Fiberglass Corp | Flotation equipment |
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| US3589917A (en) * | 1967-08-15 | 1971-06-29 | Dow Corning | Concrete resistant to scaling and spalling |
-
1970
- 1970-06-15 DE DE2029446A patent/DE2029446C3/de not_active Expired
-
1971
- 1971-06-08 NO NO2167/71A patent/NO134049C/no unknown
- 1971-06-10 CH CH846071A patent/CH576918A5/xx not_active IP Right Cessation
- 1971-06-14 FR FR7121541A patent/FR2097880A5/fr not_active Expired
- 1971-06-14 AT AT509471A patent/AT322433B/de not_active IP Right Cessation
- 1971-06-14 US US00153115A patent/US3772065A/en not_active Expired - Lifetime
- 1971-06-14 BE BE768507A patent/BE768507A/xx not_active IP Right Cessation
- 1971-06-14 DK DK289071A patent/DK145611C/da not_active IP Right Cessation
- 1971-06-14 SE SE07679/71A patent/SE367616B/xx unknown
- 1971-06-14 CA CA115,611A patent/CA942904A/en not_active Expired
- 1971-06-15 NL NL7108186.A patent/NL165136C/xx not_active IP Right Cessation
- 1971-06-15 GB GB2805571A patent/GB1350788A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2097880A5 (da) | 1972-03-03 |
| AT322433B (de) | 1975-05-26 |
| GB1350788A (en) | 1974-04-24 |
| CA942904A (en) | 1974-03-05 |
| US3772065A (en) | 1973-11-13 |
| DE2029446A1 (de) | 1971-12-23 |
| BE768507A (fr) | 1971-11-03 |
| NL7108186A (da) | 1971-12-17 |
| NL165136B (nl) | 1980-10-15 |
| DE2029446C3 (de) | 1979-06-28 |
| SE367616B (da) | 1974-06-04 |
| NO134049C (da) | 1976-08-11 |
| CH576918A5 (da) | 1976-06-30 |
| DE2029446B2 (de) | 1975-10-16 |
| NL165136C (nl) | 1981-03-16 |
| DK145611C (da) | 1983-06-20 |
| NO134049B (da) | 1976-05-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUP | Patent expired |