FI63081C - Pappersprodukt med stor fyllaemneshalt - Google Patents
Pappersprodukt med stor fyllaemneshalt Download PDFInfo
- Publication number
- FI63081C FI63081C FI792634A FI792634A FI63081C FI 63081 C FI63081 C FI 63081C FI 792634 A FI792634 A FI 792634A FI 792634 A FI792634 A FI 792634A FI 63081 C FI63081 C FI 63081C
- Authority
- FI
- Finland
- Prior art keywords
- ionogenic
- added
- substances
- process according
- pulp
- Prior art date
Links
- 239000000945 filler Substances 0.000 claims description 29
- 239000000126 substance Substances 0.000 claims description 26
- 238000000034 method Methods 0.000 claims description 24
- 229920005989 resin Polymers 0.000 claims description 17
- 239000011347 resin Substances 0.000 claims description 17
- 230000008569 process Effects 0.000 claims description 15
- 229920000642 polymer Polymers 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 239000000725 suspension Substances 0.000 claims description 10
- 239000010425 asbestos Substances 0.000 claims description 9
- 239000012766 organic filler Substances 0.000 claims description 9
- 229910052895 riebeckite Inorganic materials 0.000 claims description 9
- 230000035484 reaction time Effects 0.000 claims description 8
- 239000004593 Epoxy Substances 0.000 claims description 7
- 238000007792 addition Methods 0.000 claims description 7
- 125000002091 cationic group Chemical group 0.000 claims description 7
- 125000000129 anionic group Chemical group 0.000 claims description 5
- -1 carboxyvinyls Polymers 0.000 claims description 5
- 229920002401 polyacrylamide Polymers 0.000 claims description 5
- 229920003023 plastic Polymers 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 229920001131 Pulp (paper) Polymers 0.000 claims description 3
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 3
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 claims description 3
- 239000010445 mica Substances 0.000 claims description 3
- 229910052618 mica group Inorganic materials 0.000 claims description 3
- 229920001568 phenolic resin Polymers 0.000 claims description 3
- 239000012783 reinforcing fiber Substances 0.000 claims description 3
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 3
- 239000000454 talc Substances 0.000 claims description 3
- 229910052623 talc Inorganic materials 0.000 claims description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 2
- 239000005995 Aluminium silicate Substances 0.000 claims description 2
- 239000002174 Styrene-butadiene Substances 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 235000012211 aluminium silicate Nutrition 0.000 claims description 2
- 239000012736 aqueous medium Substances 0.000 claims description 2
- 229920002678 cellulose Polymers 0.000 claims description 2
- 239000004927 clay Substances 0.000 claims description 2
- 229910052570 clay Inorganic materials 0.000 claims description 2
- 239000010459 dolomite Substances 0.000 claims description 2
- 229910000514 dolomite Inorganic materials 0.000 claims description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 2
- 239000004417 polycarbonate Substances 0.000 claims description 2
- 229920000098 polyolefin Polymers 0.000 claims description 2
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 2
- 239000011115 styrene butadiene Substances 0.000 claims description 2
- 239000011256 inorganic filler Substances 0.000 claims 2
- 229920002972 Acrylic fiber Polymers 0.000 claims 1
- 239000004793 Polystyrene Substances 0.000 claims 1
- 239000002253 acid Substances 0.000 claims 1
- 150000002148 esters Chemical class 0.000 claims 1
- 229910003475 inorganic filler Inorganic materials 0.000 claims 1
- 239000000395 magnesium oxide Substances 0.000 claims 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims 1
- 229920000515 polycarbonate Polymers 0.000 claims 1
- 229920002223 polystyrene Polymers 0.000 claims 1
- 239000011145 styrene acrylonitrile resin Substances 0.000 claims 1
- 239000000047 product Substances 0.000 description 32
- 239000000123 paper Substances 0.000 description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 239000002245 particle Substances 0.000 description 9
- 239000003365 glass fiber Substances 0.000 description 8
- 239000000203 mixture Substances 0.000 description 8
- 239000000843 powder Substances 0.000 description 7
- 239000004952 Polyamide Substances 0.000 description 6
- 229920002647 polyamide Polymers 0.000 description 6
- 239000011111 cardboard Substances 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 5
- 229910052500 inorganic mineral Inorganic materials 0.000 description 5
- 239000012764 mineral filler Substances 0.000 description 5
- 239000011490 mineral wool Substances 0.000 description 5
- 239000000835 fiber Substances 0.000 description 4
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 3
- 229920002125 Sokalan® Polymers 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000003822 epoxy resin Substances 0.000 description 3
- 239000012467 final product Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000004745 nonwoven fabric Substances 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- 229920003043 Cellulose fiber Polymers 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 229920006317 cationic polymer Polymers 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011152 fibreglass Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000012209 synthetic fiber Substances 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 229920006243 acrylic copolymer Polymers 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 229920006026 co-polymeric resin Polymers 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 125000002573 ethenylidene group Chemical group [*]=C=C([H])[H] 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000000546 pharmaceutical excipient Substances 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 229920005990 polystyrene resin Polymers 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 229920000638 styrene acrylonitrile Polymers 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/76—Processes or apparatus for adding material to the pulp or to the paper characterised by choice of auxiliary compounds which are added separately from at least one other compound, e.g. to improve the incorporation of the latter or to obtain an enhanced combined effect
- D21H23/765—Addition of all compounds to the pulp
Landscapes
- Paper (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Claims (13)
1. Förfarande för framställning av en skivformig pro-dukt medelst pappersframställningsteknik, varvid man sätter minst ett finfördelat oorganiskt eller organiskt fyllraedel tili en fibermassa i ett vattenhaltigt medium, känneteck- n a t därav, att det omfattar följande steg: a) man sätter tili fibermassan innehällande det tillsatta fyll-medlet ett första jonogent ämne med en polaritet motsatt fibermassans polaritet, b) man tillsätter ett andra jonogent ämne med en polaritet motsatt det första jonogena ämnets polaritet, c) man fortsätter tillsättandet av jonogena ämnen, vars polaritet alternerar successivt, tills stabiliteten av fibermassan innehällande det tillsatta fyllmedlet och jonogena ämnen är till-räckligt högt för behandling medelst pappersframställningsteknik.
2. Förfarande enligt patentkravet 1, känneteck-n a t därav, att antalet av de tillsatta jonogena ämnena är minst tre.
3. Förfarande enligt patentkravet 1, känneteck-n a t därav, att antalet av de tillsatta jonogena ämnena är minst fyra.
4. Förfarande enligt patentkravet 1, känneteck-n a t därav, att man sätter tili fibermassan innehällande det tillsatta fyllmedlet successivt: a) ett första högjonogent katjoniskt harts med en relativt läg molekylvikt, b) ett första anjoniskt harts med bindande egenskaper, c) att andra högjonogeit katjoniskt harts med en molekylvikt högre än det första katjoniska hartsets molekylvikt, d) ett andra anjoniskt harts, vilket har den högsta möjliga molekylvikten och vilket är ytterst reaktivt med hänseende tili det andra katjoniska hartset.
5. Förfarande enligt patentkravet 1, känneteck-n a t därav, att de oorganiska fyllmedlen utgöres av krita, kaolin, talk, magnesiumoxid, dolomit, glimmer, lera, asbest, aluminiumhydroxid, aluminium, bly eller liknande.
6. Förfarande enligt patentkravet 1, känneteck-n a t därav, att de organiska fyllmedlen utgöres av fenoplast.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7825886 | 1978-09-08 | ||
| FR7825886A FR2435554A1 (fr) | 1978-09-08 | 1978-09-08 | Produit papetier a forte teneur en charge |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| FI792634A FI792634A (fi) | 1980-03-09 |
| FI63081B FI63081B (fi) | 1982-12-31 |
| FI63081C true FI63081C (fi) | 1983-04-11 |
Family
ID=9212462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI792634A FI63081C (fi) | 1978-09-08 | 1979-08-23 | Pappersprodukt med stor fyllaemneshalt |
Country Status (17)
| Country | Link |
|---|---|
| JP (1) | JPS5540895A (sv) |
| AT (1) | AT373934B (sv) |
| BE (1) | BE878052A (sv) |
| CA (1) | CA1132309A (sv) |
| CH (1) | CH640900A5 (sv) |
| DE (1) | DE2934007A1 (sv) |
| DK (1) | DK154155C (sv) |
| ES (1) | ES483925A1 (sv) |
| FI (1) | FI63081C (sv) |
| FR (1) | FR2435554A1 (sv) |
| GB (1) | GB2031475B (sv) |
| IE (1) | IE48810B1 (sv) |
| IT (1) | IT1123570B (sv) |
| LU (1) | LU81556A1 (sv) |
| MX (1) | MX151034A (sv) |
| NL (1) | NL188300C (sv) |
| SE (1) | SE445745B (sv) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2519663B2 (fr) * | 1981-05-12 | 1985-08-16 | Jeandheurs Papeteries | Perfectionnements apportes au procede de fabrication en milieu aqueux de feuilles en matieres fibreuses contenant du latex ou analogue et/ou des phenoplastes ou aminoplastes, nouvelles feuilles ainsi obtenues et leur eventuelle reutilisation |
| FR2508508B1 (fr) * | 1981-06-30 | 1985-06-14 | Dalle & Lecomte Papeteries | Produits fibreux fabriques a partir de suspensions aqueuses et leur procede de fabrication |
| US4609431A (en) * | 1984-07-26 | 1986-09-02 | Congoleum Corporation | Non-woven fibrous composite materials and method for the preparation thereof |
| JPS6163796A (ja) * | 1984-09-04 | 1986-04-01 | 本州製紙株式会社 | 紙の製造方法 |
| FR2571388B1 (fr) * | 1984-10-05 | 1987-01-16 | Dalle & Lecomte Papeteries | Produit non tisse en feuille a fibres longues et son procede de realisation par voie papetiere |
| GB8531558D0 (en) * | 1985-12-21 | 1986-02-05 | Wiggins Teape Group Ltd | Loaded paper |
| GB8701491D0 (en) * | 1987-01-23 | 1987-02-25 | Ecc Int Ltd | Aqueous suspensions of calcium |
| FR2612213B1 (fr) * | 1987-03-13 | 1989-06-30 | Roquette Freres | Procede de fabrication du papier |
| SE466110B (sv) * | 1988-02-26 | 1991-12-16 | Bilsom Ab | Fiberinnehaallande, vaesentligen oorganiskt arkmaterial, saett att framstaella ett saadant samt fyllmedel foer anvaendning daeri |
| SE8800660L (sv) * | 1988-02-26 | 1989-08-27 | Bilsom Ab | Saett och medel foer ytbehandling av fiberinnehaallande, vaesentligen oorganiskt material |
| US6074527A (en) | 1994-06-29 | 2000-06-13 | Kimberly-Clark Worldwide, Inc. | Production of soft paper products from coarse cellulosic fibers |
| US6001218A (en) | 1994-06-29 | 1999-12-14 | Kimberly-Clark Worldwide, Inc. | Production of soft paper products from old newspaper |
| US5582681A (en) | 1994-06-29 | 1996-12-10 | Kimberly-Clark Corporation | Production of soft paper products from old newspaper |
| DE4436317C2 (de) * | 1994-10-11 | 1998-10-29 | Nalco Chemical Co | Verfahren zur Verbesserung der Retention von Mineral-Füllstoffen und Cellulosefasern auf einem Cellulose-Faserbogen |
| US6296736B1 (en) | 1997-10-30 | 2001-10-02 | Kimberly-Clark Worldwide, Inc. | Process for modifying pulp from recycled newspapers |
| US6387210B1 (en) | 1998-09-30 | 2002-05-14 | Kimberly-Clark Worldwide, Inc. | Method of making sanitary paper product from coarse fibers |
| EP3059739A1 (de) | 2015-02-20 | 2016-08-24 | Wicor Holding AG | Isolationselement mit geringer elektrischer Leitfähigkeit zur elektrischen Isolation im Hochspannungsbereich |
| EP3288041A1 (de) | 2016-08-23 | 2018-02-28 | Wicor Holding AG | Isolationselement mit chemiefasern zur elektrischen isolation im hochspannungsbereich |
| SE545522C2 (en) * | 2022-02-25 | 2023-10-10 | Biosorbe Ab | Filtering material and method for producing a filtering material |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3021257A (en) * | 1958-07-31 | 1962-02-13 | American Cyanamid Co | Paper containing pigment or filler |
| US3184373A (en) * | 1961-07-05 | 1965-05-18 | Mead Corp | Filled paper containing a mixture of resin and mucilaginous material as a retention aid and process for producing said paper |
-
1978
- 1978-09-08 FR FR7825886A patent/FR2435554A1/fr active Granted
-
1979
- 1979-07-27 LU LU81556A patent/LU81556A1/xx unknown
- 1979-07-31 SE SE7906497A patent/SE445745B/sv not_active IP Right Cessation
- 1979-08-02 GB GB7927020A patent/GB2031475B/en not_active Expired
- 1979-08-02 DK DK326079A patent/DK154155C/da not_active IP Right Cessation
- 1979-08-03 BE BE0/196577A patent/BE878052A/xx not_active IP Right Cessation
- 1979-08-03 CH CH714779A patent/CH640900A5/fr not_active IP Right Cessation
- 1979-08-09 ES ES483925A patent/ES483925A1/es not_active Expired
- 1979-08-09 CA CA333,462A patent/CA1132309A/fr not_active Expired
- 1979-08-20 DE DE19792934007 patent/DE2934007A1/de not_active Withdrawn
- 1979-08-23 JP JP10803179A patent/JPS5540895A/ja active Granted
- 1979-08-23 IE IE1616/79A patent/IE48810B1/en not_active IP Right Cessation
- 1979-08-23 FI FI792634A patent/FI63081C/fi not_active IP Right Cessation
- 1979-09-05 MX MX179172A patent/MX151034A/es unknown
- 1979-09-06 NL NLAANVRAGE7906678,A patent/NL188300C/xx not_active IP Right Cessation
- 1979-09-07 IT IT25560/79A patent/IT1123570B/it active
- 1979-09-07 AT AT0593879A patent/AT373934B/de not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| IT7925560A0 (it) | 1979-09-07 |
| FR2435554A1 (fr) | 1980-04-04 |
| CA1132309A (fr) | 1982-09-28 |
| CH640900A5 (fr) | 1984-01-31 |
| JPS5540895A (en) | 1980-03-22 |
| DE2934007A1 (de) | 1980-03-20 |
| SE7906497L (sv) | 1980-03-09 |
| GB2031475B (en) | 1983-07-20 |
| NL188300B (nl) | 1991-12-16 |
| DK154155B (da) | 1988-10-17 |
| IE48810B1 (en) | 1985-05-29 |
| DK154155C (da) | 1989-03-06 |
| NL7906678A (nl) | 1980-03-11 |
| GB2031475A (en) | 1980-04-23 |
| BE878052A (fr) | 1979-12-03 |
| MX151034A (es) | 1984-09-12 |
| ATA593879A (de) | 1983-07-15 |
| AT373934B (de) | 1984-03-12 |
| FI792634A (fi) | 1980-03-09 |
| FR2435554B1 (sv) | 1982-07-02 |
| JPS6323318B2 (sv) | 1988-05-16 |
| IT1123570B (it) | 1986-04-30 |
| SE445745B (sv) | 1986-07-14 |
| NL188300C (nl) | 1992-05-18 |
| FI63081B (fi) | 1982-12-31 |
| DK326079A (da) | 1980-03-09 |
| ES483925A1 (es) | 1980-04-16 |
| LU81556A1 (fr) | 1979-10-31 |
| IE791616L (en) | 1980-03-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM | Patent lapsed | ||
| MM | Patent lapsed |
Owner name: PAPETERIES DALLE ET LECOMTE |