NO155617B - DECORATIVE GLASS REMOVAL AND PROCEDURE IN ITS PREPARATION. - Google Patents
DECORATIVE GLASS REMOVAL AND PROCEDURE IN ITS PREPARATION. Download PDFInfo
- Publication number
- NO155617B NO155617B NO831324A NO831324A NO155617B NO 155617 B NO155617 B NO 155617B NO 831324 A NO831324 A NO 831324A NO 831324 A NO831324 A NO 831324A NO 155617 B NO155617 B NO 155617B
- Authority
- NO
- Norway
- Prior art keywords
- polycarbonates
- procedure
- preparation
- decorative glass
- glass removal
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 16
- 239000011521 glass Substances 0.000 title 1
- 239000004417 polycarbonate Substances 0.000 claims description 24
- 229920000515 polycarbonate Polymers 0.000 claims description 24
- 230000002378 acidificating effect Effects 0.000 claims description 8
- 230000006641 stabilisation Effects 0.000 claims description 3
- 238000011105 stabilization Methods 0.000 claims description 3
- 229920001169 thermoplastic Polymers 0.000 claims description 3
- 239000004416 thermosoftening plastic Substances 0.000 claims description 3
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 claims description 2
- 239000012965 benzophenone Substances 0.000 claims description 2
- 125000003354 benzotriazolyl group Chemical class N1N=NC2=C1C=CC=C2* 0.000 claims 1
- 239000003381 stabilizer Substances 0.000 claims 1
- 239000006096 absorbing agent Substances 0.000 description 6
- 239000002253 acid Substances 0.000 description 5
- 239000004033 plastic Substances 0.000 description 5
- 229920003023 plastic Polymers 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 4
- 230000007935 neutral effect Effects 0.000 description 4
- -1 polyethylene Polymers 0.000 description 4
- 238000005809 transesterification reaction Methods 0.000 description 4
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 3
- 235000010338 boric acid Nutrition 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 239000012963 UV stabilizer Substances 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- 239000004327 boric acid Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 235000011007 phosphoric acid Nutrition 0.000 description 2
- RMSGQZDGSZOJMU-UHFFFAOYSA-N 1-butyl-2-phenylbenzene Chemical group CCCCC1=CC=CC=C1C1=CC=CC=C1 RMSGQZDGSZOJMU-UHFFFAOYSA-N 0.000 description 1
- MEZZCSHVIGVWFI-UHFFFAOYSA-N 2,2'-Dihydroxy-4-methoxybenzophenone Chemical compound OC1=CC(OC)=CC=C1C(=O)C1=CC=CC=C1O MEZZCSHVIGVWFI-UHFFFAOYSA-N 0.000 description 1
- MJFOVRMNLQNDDS-UHFFFAOYSA-N 2-(benzotriazol-2-yl)-4,6-dimethylphenol Chemical compound CC1=CC(C)=C(O)C(N2N=C3C=CC=CC3=N2)=C1 MJFOVRMNLQNDDS-UHFFFAOYSA-N 0.000 description 1
- SYFIBOFYDHBYCD-UHFFFAOYSA-N 2-(benzotriazol-2-yl)-4-pentylphenol Chemical compound CCCCCC1=CC=C(O)C(N2N=C3C=CC=CC3=N2)=C1 SYFIBOFYDHBYCD-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- UEZVMMHDMIWARA-UHFFFAOYSA-N Metaphosphoric acid Chemical compound OP(=O)=O UEZVMMHDMIWARA-UHFFFAOYSA-N 0.000 description 1
- 229920000426 Microplastic Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 239000012964 benzotriazole Substances 0.000 description 1
- 150000001565 benzotriazoles Chemical class 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 125000005619 boric acid group Chemical class 0.000 description 1
- YZYDPPZYDIRSJT-UHFFFAOYSA-K boron phosphate Chemical compound [B+3].[O-]P([O-])([O-])=O YZYDPPZYDIRSJT-UHFFFAOYSA-K 0.000 description 1
- 229910000149 boron phosphate Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- ROORDVPLFPIABK-UHFFFAOYSA-N diphenyl carbonate Chemical compound C=1C=CC=CC=1OC(=O)OC1=CC=CC=C1 ROORDVPLFPIABK-UHFFFAOYSA-N 0.000 description 1
- ASMQGLCHMVWBQR-UHFFFAOYSA-M diphenyl phosphate Chemical compound C=1C=CC=CC=1OP(=O)([O-])OC1=CC=CC=C1 ASMQGLCHMVWBQR-UHFFFAOYSA-M 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- MCPKSFINULVDNX-UHFFFAOYSA-N drometrizole Chemical compound CC1=CC=C(O)C(N2N=C3C=CC=CC3=N2)=C1 MCPKSFINULVDNX-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 125000005397 methacrylic acid ester group Chemical group 0.000 description 1
- DXGLGDHPHMLXJC-UHFFFAOYSA-N oxybenzone Chemical compound OC1=CC(OC)=CC=C1C(=O)C1=CC=CC=C1 DXGLGDHPHMLXJC-UHFFFAOYSA-N 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- CMPQUABWPXYYSH-UHFFFAOYSA-N phenyl phosphate Chemical compound OP(O)(=O)OC1=CC=CC=C1 CMPQUABWPXYYSH-UHFFFAOYSA-N 0.000 description 1
- 150000003016 phosphoric acids Chemical class 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- GAJQCIFYLSXSEZ-UHFFFAOYSA-L tridecyl phosphate Chemical compound CCCCCCCCCCCCCOP([O-])([O-])=O GAJQCIFYLSXSEZ-UHFFFAOYSA-L 0.000 description 1
- FSLSJTZWDATVTK-UHFFFAOYSA-N tris(6-methylheptyl) phosphate Chemical compound CC(C)CCCCCOP(=O)(OCCCCCC(C)C)OCCCCCC(C)C FSLSJTZWDATVTK-UHFFFAOYSA-N 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B11/00—Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing
- C03B11/14—Pressing laminated glass articles or glass with metal inserts or enclosures, e.g. wires, bubbles, coloured parts
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Surface Treatment Of Glass (AREA)
- Glass Compositions (AREA)
- Joining Of Glass To Other Materials (AREA)
Description
Fremgangsmåte ved UV-stabilisering av polycarbonater. Procedure for UV stabilization of polycarbonates.
Det er kjent å beskytte plast som poly-ethylen, polypropylen, polyvinylklorid, poly-styren, polyacryl- og -methacrylsyreester og copolymerer, celluloseestere og lignende ved innarbeidelse av UV-absorberingsmidler for å øke deres motstandsdyktighet mot den vedvarende eller intermitterende skadelige innvirkning av ultrafiolette strå-ler fra naturlige eller kunstige lyskilder. Til dette formål har særlig benzofenon- og benzotriazol-derivater, for eksempel 2-hydroxy-4-methoxybenzofenon, 2,2'-dihydroxy-4-methoxybenzofenon, 2,2'-di-hydroxy-4-oetoxybenzof enon, 2- (2'-hyd-roxy-5'-methylfenyl) -benzotriazol, 2- (2'-hydroxy-5'-amylfenyl) -benzotriazol, 2- (2'-hydroxy-5'~tert.butylfenyl)-benzotriazol og 2-(2'-hydroxy-3',5'-dimethylfenyl)-benzotriazol, vist seg egnet. It is known to protect plastics such as polyethylene, polypropylene, polyvinyl chloride, polystyrene, polyacrylic and methacrylic acid esters and copolymers, cellulose esters and the like by incorporating UV absorbers to increase their resistance to the persistent or intermittent harmful effects of ultraviolet rays from natural or artificial light sources. For this purpose, in particular benzophenone and benzotriazole derivatives, for example 2-hydroxy-4-methoxybenzophenone, 2,2'-dihydroxy-4-methoxybenzophenone, 2,2'-di-hydroxy-4-oethoxybenzophenone, 2- ( 2'-hydroxy-5'-methylphenyl)-benzotriazole, 2-(2'-hydroxy-5'-amylphenyl)-benzotriazole, 2-(2'-hydroxy-5'~tert.butylphenyl)-benzotriazole and 2 -(2'-hydroxy-3',5'-dimethylphenyl)-benzotriazole, proved suitable.
Disse stoffer i mengder fra ca. 0,1 til These substances in amounts from approx. 0.1 more
ca. 5 vektprosent, og særlig opptil ca. 2 vektprosent, kan innarbeides i plast ved de vanlige fremgangsmåter, for eksempel ved påstøvning eller ved påsprøytning av en oppløsning på plastgranulatet med etter-følgende homogenisering, for eksempel i en skrupresse. about. 5 percent by weight, and in particular up to approx. 2 percent by weight, can be incorporated into plastic by the usual methods, for example by dusting or by spraying a solution onto the plastic granules with subsequent homogenisation, for example in a screw press.
Ifølge erfaringene hittil egner imidlertid de nevnte UV-absorpsjonsmidler seg ikke til stabilisering av høymolekylære, termoplastiske polycarbonater av aromatiske dihydroxyforbindelser, (se W. F. Chri-stopher og D. W. Fox, «Polycarbonates» Reinhold Plastics Applications Series According to experience to date, however, the aforementioned UV absorbers are not suitable for stabilizing high molecular weight, thermoplastic polycarbonates of aromatic dihydroxy compounds, (see W. F. Christopher and D. W. Fox, "Polycarbonates" Reinhold Plastics Applications Series
(1962), Reinhold Publishing Corporation, New York, Chapman & Hall, Ltd., London, (1962), Reinhold Publishing Corporation, New York, Chapman & Hall, Ltd., London,
(155617). (155617).
side 72, 3. fullstendige avsnitt). Hvis nemlig disse UV-absorberingsmidler innarbeides i slike polycarbonater i den ovenfor nevnte mengde som er nødvendig for tilstrekkelig stabilisering av plasten ved de vanlige fremgangsmåter, forårsaker de en til den tilsatte mengde svarende nedsettelse av smelteviskositeten og den relative viskositet, og fører til en merkbar til sterk sprøhet og eventuelt til misfarvning av produktene. De formdeler som fremstilles derav ved de vanlige fremgangsmåter har vesent-lig dårligere fysikalsk-teknologiske egen-skaper, særlig en nedsatt slag- og kjerv-slagseighet og en øket tilbøyelighet til spenningsoppsprekking. page 72, 3rd full paragraph). Namely, if these UV absorbers are incorporated into such polycarbonates in the above-mentioned quantity which is necessary for sufficient stabilization of the plastic by the usual methods, they cause a decrease in the melt viscosity and the relative viscosity corresponding to the added quantity, and lead to a noticeable to strong brittleness and possibly discoloration of the products. The molded parts produced from it by the usual methods have significantly worse physical-technological properties, in particular a reduced impact and notch impact resistance and an increased tendency to stress cracking.
Det har nu vist seg at man også kan UV-stabilisere høymolekylære termoplastiske polycarbonater av aromatiske dihyd-roxy-forbindelser uten de nevnte ulemper med slike absorberingsmidler like godt som andre plaster, når man innstiller polycarbonatene svakt surt, da det har overrask-ende nok vist seg at beskadigelsene ved UV-absorpsjonsmidlene bare opptrer ved nøytrale eller svakt basiske polycarbonater. It has now been shown that high molecular weight thermoplastic polycarbonates of aromatic dihydroxy compounds can also be UV stabilized without the aforementioned disadvantages of such absorbents just as well as other plastics, when the polycarbonates are set slightly acidic, as it has surprisingly been shown that the damage caused by the UV absorbers only occurs with neutral or weakly basic polycarbonates.
Da polycarbonatene fra sin fremstil-ling, være det seg fra anvendelsen av basiske katalysatorer ved omestringsprosessen, eller være det seg fra anvendelsen av syrebindende stoffer ved fosgeniseringspro-sessen, opprinnelig fåes basiske, og at man av hensyn til en god termostabilitet av produktene alltid omsorgsfullt passet på å nøytralisere denne basisitet i størst mulig grad, men heller ikke lot produktene bli sure, for eksempel ved senere tilsetning av nøyaktig avpassede mengder base-bind-ende midler, ved omestringsprosessen eller ved grundig utvaskning av de ved fosgeni-seringsproessen dannede polycarbonat-oppløsninger, har man ved de tidligere for-søk på å stabilisere polycarbonatene med de nevnte UV-absorpsjonsmidler, åpenbart alltid hatt med nøytrale, respektive svakt basiske polycarbonater å gjøre og derfor vært utsatt for de nevnte dårlige resultater. Since the polycarbonates from their production, be it from the use of basic catalysts in the transesterification process, or be it from the use of acid-binding substances in the phosgenization process, are originally obtained basic, and that for reasons of good thermostability of the products, one always carefully took care to neutralize this basicity to the greatest extent possible, but also did not allow the products to become acidic, for example by later addition of precisely adjusted amounts of base-binding agents, during the transesterification process or by thorough washing out of the polycarbonate formed during the phosgenization process solutions, in the previous attempts to stabilize the polycarbonates with the aforementioned UV absorbers, one has obviously always had to deal with neutral or weakly basic polycarbonates and therefore been exposed to the aforementioned poor results.
Det har vist seg ifølge foreliggende oppfinnelse at man ved en svakt sur innstilling av selve polycarbonatene, i mot-strid med den tidligere oppfatning, ikke behøver å frykte ulemper, og som nevnt, inntrer ikke en beskadigelse av polycarbonatene ved UV-absorpsjonsmidler inn-ført i dem. According to the present invention, it has been shown that, contrary to the previous opinion, there is no need to fear disadvantages when the polycarbonates themselves are slightly acidic, and as mentioned, no damage to the polycarbonates occurs when UV absorbers are introduced. in them.
En for foreliggende fremgangsmåte egnet, svak sur innstilling av polycarbonatene kan oppnåes ved at man for eksempel lett overnøytraliserer basisiteten av de ved omestringsprosessen fremstilte poly-carbonatsmelter ved tilsetning av stoffer som reagerer svakt surt i smeiten, eller likeledes overnøytraliserer de basiske stoffer i de ved fosgeneringsprosessen dannede polycarbonat-oppløsninger med en syre, for eksempel saltsyre eller fortrinnsvis fosforsyre, på i og for seg kjent måte, men ikke lenger som hittil fullstendig utvasker den overskytende syre med vann. A weakly acidic setting of the polycarbonates suitable for the present process can be achieved by, for example, easily over-neutralizing the basicity of the polycarbonate melts produced by the transesterification process by adding substances that react slightly acidic in the smelting, or similarly over-neutralizing the basic substances in them by the phosgenation process formed polycarbonate solutions with an acid, for example hydrochloric acid or preferably phosphoric acid, in a manner known per se, but no longer which until now completely washes out the excess acid with water.
Da en slik innstilling av en egnet sur-hetsgrad allerede direkte ved opparbeidelse av polycarbonatene i tilslutning til frem-stillingsprosessen imidlertid ofte ikke uten videre kan beherskes med den ønskede nøyaktighet og sikkerhet, er det som regel fordelaktig, først, som hittil, å fremstille praktisk talt nøytrale polycarbonater og derefter tilsette disse egnede substanser, som man kan kalle «costabilisatorer» og som så gir smeiten en fordelaktig surhets-grad.Til dette har syrer og estere som virker surt i varmen, spesielt fosforsyrer og bor-syrer og estere av disse, for eksempel o-fosforsyre, m-fosforsyre, mono- og difenyl-fosfat, triisooctylfosfat, tridecylfosfat, fenylmetafosfat, borsyre, borsyreesteren av hexandiol-1,6 og bor fosfat, vist seg som særlig egnet. Since such a setting of a suitable degree of acidity already directly during processing of the polycarbonates in connection with the manufacturing process, however, often cannot be controlled without further ado with the desired accuracy and safety, it is usually advantageous, first, as heretofore, to produce practical relatively neutral polycarbonates and then add these suitable substances, which can be called "costabilizers" and which then give the melt an advantageous degree of acidity. In addition to this, acids and esters that act acidic in the heat, especially phosphoric acids and boric acids and their esters , for example o-phosphoric acid, m-phosphoric acid, mono- and diphenyl phosphate, triisooctyl phosphate, tridecyl phosphate, phenyl metaphosphate, boric acid, the boric acid ester of hexanediol-1,6 and boron phosphate, have proven to be particularly suitable.
Alt etter typen av det foreliggende polycarbonat ligger de egnede mengder av slike «costabilisatorer» mellom 0,001 og 0,5 vektprosent, og særlig mellom 0,005 og 0,01 vektprosent. De gunstigste mengder lar seg i hvert tilfelle lett bestemme ved enkle forsøk. Depending on the type of polycarbonate present, the suitable amounts of such "costabilizers" are between 0.001 and 0.5 percent by weight, and in particular between 0.005 and 0.01 percent by weight. The most favorable quantities can be easily determined in each case by simple experiments.
I det følgende gies der en egnet for-skrift for innarbeidelse av de ovenfor nevnte UV-stabilisatorer og «costabilisatorer» i de ved kjente fremgangsmåter fremstilte polycarbonater, såvel som fremstillin-gen av prøvelegemer av disse: In the following, a suitable prescription is given for the incorporation of the above-mentioned UV stabilizers and "costabilizers" in the polycarbonates produced by known methods, as well as the production of test specimens thereof:
I en blander ble 10 000 vektdeler av et ved omestringsprosessen med difenylcar-bonat fremstilt polycarbonat av bisfenol A med en relativ viskositet på 1,315, målt som 0,5 prosentig oppløsning ved 25° C i methylenklorid, blandet med en suspen-sjon av 0,5 vektdeler «costabilisator» i et benzinhydrocarbon. Etter påfølgende tør-ring ved 120° C i vakuum, ble blandingen homogenisert i en skrupresse, de dannede fibre ble findelt til et sylindrisk granulat og deler av dette ble påny blandet i en blander med de i eksempel 5—9, 11 og 13 i tabell 1 angitte mengder av de enkelte UV-stabilisatorer. Blandingene ble i hvert tilfelle igjen homogenisert i en skrupresse og de dannede fibre findelt til et sylindrisk granulat. Disse granulater ble i tørr til-stand forarbeidet i en sprøytepresse opp-arbeidet til små normalstaver ifølge DIN 53453 av størrelse 50 x 6 x 4 mm og normal-flatstaver ifølge DIN 53470 av størrelse 120 x 10 x 4 mm, fra hvilke man fikk de i tabell 2 angitte prøveresultater. Dessuten inneholder disse tabeller forsøk med polycarbonater fra bisfenol A fremstilt ved fosgeneringsmetoden, og da slike som ble vasket svakt sure (eksempel 15 og 16) og slike som ble vasket nøytrale og tilsatt «costabilisator» (eksempel 17). Til sam-menligning er i hvert tilfelle satt opp re-sultatene av ikke surt fremstilte produkter (eksempel 1—4, 10, 12 og 16). In a mixer, 10,000 parts by weight of a polycarbonate of bisphenol A produced by the transesterification process with diphenyl carbonate with a relative viscosity of 1.315, measured as a 0.5 percent solution at 25° C. in methylene chloride, were mixed with a suspension of 0, 5 parts by weight "costabilizer" in a gasoline hydrocarbon. After subsequent drying at 120° C. in a vacuum, the mixture was homogenized in a screw press, the formed fibers were finely divided into a cylindrical granule and parts of this were again mixed in a mixer with those in examples 5-9, 11 and 13 in table 1 indicates quantities of the individual UV stabilizers. In each case, the mixtures were again homogenized in a screw press and the fibers formed were finely divided into a cylindrical granule. These granules were prepared in a dry state in a spray press and worked up into small normal bars according to DIN 53453 of size 50 x 6 x 4 mm and normal flat bars according to DIN 53470 of size 120 x 10 x 4 mm, from which the in table 2 specified test results. In addition, these tables contain tests with polycarbonates from bisphenol A produced by the phosgenation method, and then those that were washed weakly acid (examples 15 and 16) and those that were washed neutral and added "costabilizer" (example 17). For comparison, the results of non-acidic products (examples 1-4, 10, 12 and 16) have been set up in each case.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI821321A FI66825C (en) | 1982-04-15 | 1982-04-15 | FOERFARANDE FOER TILLVERKNING AV ETT DECORATIVE FOEREMAOL AV GLAS SAMT GENOM FOERFARANDET FRAMSTAELLT DECORATIVE FOEREMAOL |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NO831324L NO831324L (en) | 1983-10-17 |
| NO155617B true NO155617B (en) | 1987-01-19 |
| NO155617C NO155617C (en) | 1987-04-29 |
Family
ID=8515356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO831324A NO155617C (en) | 1982-04-15 | 1983-04-14 | DECORATIVE GLASS REMOVAL AND PROCEDURE IN ITS PREPARATION. |
Country Status (5)
| Country | Link |
|---|---|
| DE (1) | DE3313742A1 (en) |
| DK (1) | DK166683A (en) |
| FI (1) | FI66825C (en) |
| NO (1) | NO155617C (en) |
| SE (1) | SE8302123L (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT411041B (en) * | 2000-05-18 | 2003-09-25 | Josef Lindenberg | METHOD FOR THE PRODUCTION OF GLASS TILES, GLASS BORDERS, GLASS DECORPANELS OR THE LIKE |
-
1982
- 1982-04-15 FI FI821321A patent/FI66825C/en not_active IP Right Cessation
-
1983
- 1983-04-14 NO NO831324A patent/NO155617C/en unknown
- 1983-04-15 DK DK166683A patent/DK166683A/en active IP Right Grant
- 1983-04-15 DE DE19833313742 patent/DE3313742A1/en not_active Withdrawn
- 1983-04-15 SE SE8302123A patent/SE8302123L/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| DE3313742A1 (en) | 1983-10-20 |
| FI821321L (en) | 1983-10-16 |
| NO155617C (en) | 1987-04-29 |
| FI66825B (en) | 1984-08-31 |
| SE8302123L (en) | 1983-10-16 |
| FI821321A0 (en) | 1982-04-15 |
| FI66825C (en) | 1984-12-10 |
| SE8302123D0 (en) | 1983-04-15 |
| NO831324L (en) | 1983-10-17 |
| DK166683D0 (en) | 1983-04-15 |
| DK166683A (en) | 1983-10-16 |
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