DE3210145C2 - - Google Patents
Info
- Publication number
- DE3210145C2 DE3210145C2 DE3210145A DE3210145A DE3210145C2 DE 3210145 C2 DE3210145 C2 DE 3210145C2 DE 3210145 A DE3210145 A DE 3210145A DE 3210145 A DE3210145 A DE 3210145A DE 3210145 C2 DE3210145 C2 DE 3210145C2
- Authority
- DE
- Germany
- Prior art keywords
- fibers
- cement
- fiber
- product according
- acrylonitrile
- 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
- 239000000835 fiber Substances 0.000 claims description 78
- 229920002239 polyacrylonitrile Polymers 0.000 claims description 21
- 239000000203 mixture Substances 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 16
- 239000011230 binding agent Substances 0.000 claims description 15
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 claims description 13
- 239000000047 product Substances 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 229920000642 polymer Polymers 0.000 claims description 6
- 239000000654 additive Substances 0.000 claims description 5
- 239000012783 reinforcing fiber Substances 0.000 claims description 5
- 238000009826 distribution Methods 0.000 claims description 2
- 238000000227 grinding Methods 0.000 claims description 2
- 239000012265 solid product Substances 0.000 claims description 2
- 238000004804 winding Methods 0.000 claims description 2
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 239000004568 cement Substances 0.000 description 48
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 15
- 239000010425 asbestos Substances 0.000 description 11
- 229910052895 riebeckite Inorganic materials 0.000 description 11
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 239000002002 slurry Substances 0.000 description 6
- 239000000945 filler Substances 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 239000004753 textile Substances 0.000 description 4
- 239000003513 alkali Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 230000036571 hydration Effects 0.000 description 3
- 238000006703 hydration reaction Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229920000728 polyester Polymers 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- -1 silk Polymers 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- 239000011398 Portland cement Substances 0.000 description 2
- 229920000297 Rayon Polymers 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical class [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002657 fibrous material Substances 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 239000010893 paper waste Substances 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 210000002268 wool Anatomy 0.000 description 2
- 229920002972 Acrylic fiber Polymers 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical group C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 238000006887 Ullmann reaction Methods 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011400 blast furnace cement Substances 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 235000012241 calcium silicate Nutrition 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 229920006253 high performance fiber Polymers 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 239000005445 natural material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 229910021487 silica fume Inorganic materials 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- SZHIIIPPJJXYRY-UHFFFAOYSA-M sodium;2-methylprop-2-ene-1-sulfonate Chemical compound [Na+].CC(=C)CS([O-])(=O)=O SZHIIIPPJJXYRY-UHFFFAOYSA-M 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 210000003934 vacuole Anatomy 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 238000002166 wet spinning Methods 0.000 description 1
Classifications
-
- 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
- C04B16/00—Use of organic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of organic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B16/04—Macromolecular compounds
- C04B16/06—Macromolecular compounds fibrous
- C04B16/0616—Macromolecular compounds fibrous from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B16/065—Polyacrylates; Polymethacrylates
- C04B16/0658—Polyacrylonitrile
-
- 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
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
- Y10T428/1372—Randomly noninterengaged or randomly contacting fibers, filaments, particles, or flakes
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Artificial Filaments (AREA)
- Nonwoven Fabrics (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Inorganic Fibers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1919/81A CH648008A5 (de) | 1981-03-20 | 1981-03-20 | Mit hydraulischen bindemitteln hergestellte faserhaltige produkte und verfahren zu ihrer herstellung. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3210145A1 DE3210145A1 (de) | 1982-12-09 |
| DE3210145C2 true DE3210145C2 (US07906212-20110315-C00002.png) | 1988-03-24 |
Family
ID=4221644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19823210145 Granted DE3210145A1 (de) | 1981-03-20 | 1982-03-19 | Mit hydraulischen bindemitteln hergestellte faserhaltige produkte |
Country Status (27)
Families Citing this family (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4866109A (en) * | 1980-12-10 | 1989-09-12 | Basf Corporation | Method of making reinforced materials having an improved reinforcing material therein |
| FR2535710B1 (fr) * | 1982-11-10 | 1986-05-02 | Everitube | Materiau de construction a base de liant hydraulique renforce par des fibres et son procede de fabrication |
| JPH0672036B2 (ja) * | 1983-05-09 | 1994-09-14 | 東レ株式会社 | セメントスラリー組成物 |
| DE3340093A1 (de) * | 1983-11-05 | 1985-05-15 | Bayer Ag, 5090 Leverkusen | Faserverstaerkte anorganische formkoerper und ihre herstellung |
| DE3406910A1 (de) | 1984-02-25 | 1985-09-05 | Hoechst Ag, 6230 Frankfurt | Monofile und borsten aus homo- oder copolymerisaten des acrylnitrils und verfahren zu ihrer herstellung |
| JPS616161A (ja) * | 1984-06-19 | 1986-01-11 | 東レ株式会社 | アクリル系繊維を補強繊維とするセメント成形物 |
| JPS616160A (ja) * | 1984-06-19 | 1986-01-11 | 東レ株式会社 | 繊維補強水硬性物質 |
| US5502090A (en) * | 1986-04-14 | 1996-03-26 | Toray Industries, Inc. | High tenacity and high toughness acrylic sulfide fibers, a process for production thereof, and composite materials prepared by using it |
| JPH0733272B2 (ja) * | 1986-09-25 | 1995-04-12 | 呉羽化学工業株式会社 | 繊維補強セメント複合材およびその成形物 |
| IT1197387B (it) * | 1986-10-14 | 1988-11-30 | S I P A Spa | Stuoia non tessuta di filamenti continui acrilici ad alto modulo e manufatti rinforzati con detta stuoia |
| US4772328A (en) * | 1986-12-18 | 1988-09-20 | Basf Corporation | Hydraulic cementitious compositions reinforced with fibers containing polyacrylonitrile |
| DE3739348A1 (de) * | 1987-11-20 | 1989-06-01 | Toschi Produktion | Faserzementplatte |
| US4844964A (en) * | 1988-03-10 | 1989-07-04 | Jurrus Carl E | Signboard units and process for making same |
| US4976884A (en) * | 1989-09-19 | 1990-12-11 | Ceram-Sna Inc. | Heat resistant composition processable by wet spinning |
| US5053282A (en) * | 1989-09-19 | 1991-10-01 | Ceram-Sna Inc. | Non-inflammable insulating composite material |
| US5154955A (en) * | 1989-09-21 | 1992-10-13 | Ceram-Sna Inc. | Fiber-reinforced cement composition |
| US5118544A (en) * | 1989-09-21 | 1992-06-02 | Ceram-Sna Inc. | Heat resistant composition processable by vacuum forming |
| US5250588A (en) * | 1990-01-16 | 1993-10-05 | Ceram Sna Inc. | Organic friction material composition for use to produce friction linings |
| DE4108995C1 (en) * | 1991-03-19 | 1992-05-27 | Stecker & Roggel Baugesellschaft Mbh, 4650 Gelsenkirchen, De | Fibre-reinforced construction panel - contg. binder matrix including synthetic fibres and elastomer to improve bending and tensile strength |
| DE10055486A1 (de) * | 2000-11-09 | 2002-05-23 | Hebau Gmbh | Fasermischung |
| BR0107280A (pt) * | 2001-09-17 | 2004-03-23 | Rhodia Poliamida Ltda | Microfibras para reforço de matrizes inorgânicas, como cimento, argamassa. gesso e concreto, microfibras à base de poliamida para reforço de matrizes inorgânicas, processo para obtenção de microfibras à base de poliamida para reforço de matrizes inorgânicas e produtos à base de fibrocimento |
| JPWO2014178309A1 (ja) * | 2013-04-30 | 2017-02-23 | 東レ・ファインケミカル株式会社 | ジメチルスルホキシドの精製法 |
| DE102016011471B4 (de) * | 2016-09-23 | 2020-04-23 | Tanja Thomas | Verfahren zur Herstellung eines wärmedämmenden Mörtels und nach dem Verfahren hergestellte Mörtel |
| CN111592252A (zh) * | 2020-05-30 | 2020-08-28 | 江苏隆昌混凝土有限公司 | 一种高性能抗裂抗冲击改性混凝土及其制备方法 |
| CN116425466B (zh) * | 2023-04-11 | 2024-09-27 | 广东东方混凝土有限公司 | 一种房屋施工用超缓凝混凝土拌和料及其制备方法 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3044547A (en) * | 1958-10-23 | 1962-07-17 | Cities Service Res & Dev Co | Permeable well cement and method of providing permeable cement filters in wells |
| US3368623A (en) * | 1965-05-03 | 1968-02-13 | Halliburton Co | Permeable cement for wells |
| DE1239255B (de) * | 1966-06-04 | 1967-04-27 | Halliburton Co | Tiefbohrzementmischung mit verbesserten Perforationseigenschaften |
| US4021258A (en) * | 1972-09-25 | 1977-05-03 | Teijin Limited | Concrete structure and method of preparing same |
| US4033781A (en) * | 1976-01-09 | 1977-07-05 | Amtech, Inc. | Fiber reinforced structural material |
| JPS5318213A (en) * | 1976-07-31 | 1978-02-20 | Matsushita Electric Works Ltd | Dressed plate that projected plate is pasted |
| AT355486B (de) * | 1977-04-20 | 1980-03-10 | Eternit Werke Hatschek L | Mischung, insbesondere baustoffmischung, zum herstellen von formkoerpern |
-
1981
- 1981-03-20 CH CH1919/81A patent/CH648008A5/de not_active IP Right Cessation
- 1981-06-08 GR GR65173A patent/GR81310B/el unknown
- 1981-06-12 GB GB8118134A patent/GB2095298B/en not_active Expired
- 1981-06-16 OA OA57424A patent/OA06835A/xx unknown
- 1981-06-17 BE BE0/205131A patent/BE889266A/nl not_active IP Right Cessation
- 1981-06-19 NL NL8102974A patent/NL8102974A/nl active Search and Examination
- 1981-06-29 ZW ZW148/81A patent/ZW14881A1/xx unknown
- 1981-06-29 AR AR285905A patent/AR228961A1/es active
- 1981-07-07 MA MA19407A patent/MA19207A1/fr unknown
- 1981-08-07 PH PH26026A patent/PH24984A/en unknown
-
1982
- 1982-03-09 IL IL65202A patent/IL65202A/xx unknown
- 1982-03-09 IE IE530/82A patent/IE52984B1/en not_active IP Right Cessation
- 1982-03-10 SE SE8201520A patent/SE8201520L/ not_active Application Discontinuation
- 1982-03-15 PT PT74579A patent/PT74579B/pt not_active IP Right Cessation
- 1982-03-16 CA CA000398486A patent/CA1173867A/en not_active Expired
- 1982-03-17 TR TR1897/82A patent/TR22589A/xx unknown
- 1982-03-18 FI FI820947A patent/FI66826C/fi not_active IP Right Cessation
- 1982-03-18 ES ES510609A patent/ES8400373A1/es not_active Expired
- 1982-03-19 DE DE19823210145 patent/DE3210145A1/de active Granted
- 1982-03-19 NO NO820914A patent/NO152602C/no unknown
- 1982-03-19 BR BR8201528A patent/BR8201528A/pt unknown
- 1982-03-19 IT IT67355/82A patent/IT1156455B/it active
- 1982-03-19 ZA ZA821858A patent/ZA821858B/xx unknown
- 1982-03-19 US US06/359,943 patent/US4414031A/en not_active Expired - Fee Related
- 1982-03-19 DK DK124882A patent/DK156050C/da not_active IP Right Cessation
- 1982-03-20 JP JP57045484A patent/JPS57170869A/ja active Granted
-
1985
- 1985-06-05 KE KE3542A patent/KE3542A/xx unknown
Also Published As
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE3210145C2 (US07906212-20110315-C00002.png) | ||
| DE69205942T2 (de) | Feste faserverstärkte Formkörper. | |
| DE3002484C2 (US07906212-20110315-C00002.png) | ||
| DE3105519A1 (de) | Verfahren zur herstellung einer faserverstaerkten, hydraulisch abbindenden zusammensetzung, hergestellte zusammensetzung und verwendung derselben | |
| CH640777A5 (de) | Verstaerkungsfasern auf kunststoff-basis und verfahren zu ihrer herstellung. | |
| DE1446615A1 (de) | Verfahren zur Herstellung von Papierprodukten | |
| CH633503A5 (de) | Faserverstaerktes zementartiges material. | |
| EP0044534B1 (de) | Hochmodul-Polyacrylnitrilfäden und -fasern sowie Verfahren zu ihrer Herstellung | |
| EP0061117B1 (de) | Fixierte Polyacrylnitrilfäden und -fasern sowie Verfahren zu ihrer Herstellung | |
| DD299327A5 (de) | Bauplatten aus zementmaterial, verstaerkt durch plastsieb und glasfasern | |
| CH649521A5 (de) | Baustoffmischung, und verfahren zur herstellung faserverstaerkter formkoerper oder formteile. | |
| EP0155520B1 (de) | Fasermischung für die Verstärkung von Werkstoffen, insbesondere für die Verstärkung von hydraulischen Bindemitteln, Verwendung der Mischung und unter Verwendung der Mischung hergestellte Formteile | |
| EP0331666A1 (de) | Verfahren zur Behandlung von Zellulosefasern sowie Faserzementprodukte und Mischungen zu ihrer Herstellung | |
| DE2734431A1 (de) | Verfahren zum herstellen eines faserverstaerkten zementverbundmaterials | |
| DE2735371A1 (de) | Verfahren zum herstellen von koerpern aus einem fasergemisch | |
| EP0363891B1 (de) | Faserverstärktes hydraulisch abgebundenes Baumaterial und Verfahren zu seiner Herstellung | |
| DE3045942A1 (de) | Aus mit hydraulischen bindemitteln und/oder kunststoffen hergestelltes erzeugnis | |
| DE3854253T2 (de) | Polyvinylalkoholfasern mit dünnem Querschnitt und Anwendung für verstärkte Artikel. | |
| EP0154217B1 (de) | Monofile und Borsten aus Homo- oder Copolymerisaten des Acrylnitrils und Verfahren zu ihrer Herstellung | |
| DE2727012A1 (de) | Verfahren zur herstellung von faserverstaerkten zementplatten | |
| EP0540816B1 (de) | PAN-Strukturformkörper für die Verarbeitung in hydraulischen Bindern | |
| CH646928A5 (en) | Process for producing fibre-reinforced hydraulically setting material | |
| EP0536474B1 (de) | Mehrkomponentensystem aus natürlichen Polymeren und PAN-Formkörpern mit asbestspezifischen Eigenschaften für den Einsatz in hydraulischen Bindern | |
| EP0199070A1 (de) | Verfahren zur Herstellung von Formteilen | |
| DE2253752B2 (de) | Verfahren zur Herstellung von Fasergebilden |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8110 | Request for examination paragraph 44 | ||
| D2 | Grant after examination | ||
| 8363 | Opposition against the patent | ||
| 8331 | Complete revocation |