NZ206915A - Non-woven laminate fabric formed by jetentanglement - Google Patents
Non-woven laminate fabric formed by jetentanglementInfo
- Publication number
- NZ206915A NZ206915A NZ206915A NZ20691584A NZ206915A NZ 206915 A NZ206915 A NZ 206915A NZ 206915 A NZ206915 A NZ 206915A NZ 20691584 A NZ20691584 A NZ 20691584A NZ 206915 A NZ206915 A NZ 206915A
- Authority
- NZ
- New Zealand
- Prior art keywords
- fibrous
- layer
- fibers
- reinforcing layer
- layers
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
- D04H1/593—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives to layered webs
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
- D04H1/48—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation
- D04H1/488—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation in combination with bonding agents
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
- D04H1/48—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation
- D04H1/49—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation entanglement by fluid jet in combination with another consolidation means
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
- D04H1/492—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres by fluid jet
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Nonwoven Fabrics (AREA)
- Laminated Bodies (AREA)
Description
New Zealand Paient Spedficaiion for Paient Number £06915
2069
Priority Date(s): •iS1.
Complete Specification Filed: <?&./..^0.-Class: 332.63
oir nil Hj" JUL 1986
Publication Date:
P.O. Journal, No: ..'.JSS.
NO DRAWINGS
-X-B
2 0 JAN 1984
tf£CEIV£D 4 a— —ai
Patents Form No. 5
PATENTS ACT 1953
Number Dated
COMPLETE SPECIFICATION
REINFORCED FABRIC LAMINATE
jj'We CHICOPEE a corporation organised under the laws of the State of New Jersey, United States of America of
317 George Street, New Brunswick, New Jersey, 08903,
United States of America do hereby declare the invention for which Ji'we pray that a Patent may be granted to Rt&/us, and the method by which it is to be performed, to be particularly described in and by the following statement:
1 * (followed by page 1a) ;206915 ;-la- ;Reference has been directed, in pursuance of Section 16(1) of the Patents Act 1953, to patents Nos. 192856 and 201501. ;Background of the Invention ;5 It is known to combine a reinforcing layer such as a scrim with one or two paper layers to form a reinforced towel. Reinforced wipes employing a. scrim between layers of non-woven materials are also known in the art. One such structure, marketed as an industrial wipe, comprised a 10 pulp-filled, long fiber, carded wipe with a floating scrim center, and specifically comprised a layer of long fibers, a pulp layer, the scrim, a pulp layer, and another layer of long fibers. The wipe contained binder material which extended through the layers of the wipe and anchored the 15 scrim. The scrim was not separately bonded to the pulp. Another nonwoven reinforced fabric wipe comprised a reinforced fluid entangled fibrous wipe consisting of a layer of entangled fibers, a reinforcing scrim, and another layer of entangled fibers, said scrim being attached to 20 the fibrous layers by heat sealing or adhesive. Entangled fiber fabrics are very expensive and difficult to produce. ;The reinforced fabric laminate of * the present invention comprises a cloth-like nonwoven reinforced laminate which 25 may be made at a relatively low cost, exhibits excellent abrasion resistance, dimensional stability and absorbency. The fibrous layers used in manufacturing the laminate are lightly entangled layers with a low level of binder,
sufficient to maintain the outer surface integrity of the 30 layer. Such layers are less expensive to manufacture than the entangled fabric layers of the prior art wipes.
According to the method of the present invention, the binder material is printed on one surface only of each of the fibrous layers which make up the fabric laminate, and 35 according to the present invention, the fabric laminate is j
1
V T
(i^
produced by a process which disposes the binder side of the fibrous layers on the outside surfaces of the fabric laminate.
Summary of the Invention
The present invention comprises, the method of making a low cost, nonwoven, reinforced fabric laminate comprising two layers of lightly entangled fibers and an interposed rein-10 forcing layer. The fabric laminate has excellent abrasion resistance, dimensional stability and absorbency. Each of the fibrous layers of the fabric laminate are assembled by subjecting a web of fibers comprising absorbent fibers and high strength fibers to fluid entangling forces to form a 15 lightly entangled fibrous layer having a jet side and a belt side, and applying binder to the jet side of each fibrous layer. The web may be dried prior to application of the binder, and the binder may be dried prior to assembling the fibrous layers into the fabric laminate.
A lightly entangled fibrous layer has greater abrasion resistance at the jet side. Binder is usually provided on the belt side of a lightly entangled fibrous layer, however, according to the method of the present invention, 25 the surface binder is added to the jet side of each of the two fibrous layers. The fabric laminate is assembled by superimposing the first fibrous layer, a reinforcing layer and the second fibrous layer with the belt side having less abrasion resistance, next adjacent the reinforcing 30 layer. The binder may be printed on the fibrous layers prior to forming the laminate or may be printed on the laminate. The reinforcing layer is attached to the two fibrous layers. The reinforcing layer may be thermoplastic, and may be secured to the first and second fibrous 35 layers by the use of heat. The reinforcing layer may comprise a scrim, and in particular, a fibrous netting
661
20691
covered with thermoplastic material. The nonwoven, reinforced fibrous material of the present invention may be used as a wipe giving excellent abrasion resistance, dimensional stability and absorbency.
Detailed Description of the Invention
The nonwoven, reinforced fabric laminate of the present invention utilizes lightly entangled fibrous layers having 10 a pattern of high density regions interconnected by fibers extending between the regions. Such lightly entangled or entangled fibrous layers have a jet side disposed closer to the jets of fluid during the entangling process, and a belt side. The jet side has greater abrasion resistance. 15 To said lightly entangled layers is added an effective amount of binder to give the fibrous layer the sufficient abrasion resistance and cohesiveness for the intended end-use application. These lightly entangled fibrous layers have been provided with binder throughout or with surface 20 binder, however in the method and fabric laminate of the present invention, the fibrous layers making up the fabric laminate are produced by printing binder on the surface of the jet side of each of the lightly entangled fibrous layers. In a preferred embodiment, the layers are dried 25 prior to print bonding.
The method of the present invention involves assembling two fibrous layers by lightly entangling a web of fibers comprising absorbent fibers and high strength fibers uti-30 lizing high speed essentially columnar jets of fluid to form the fabric layers. Binder is printed on the jet side of the layers prior to superimposing the layers in the laminate or after the layers are superimposed. The laminar structure is then assembled by superimposing the two 35 fibrous layers with a reinforcing layer therebetween. The laminar structure is assembled so that the belt side of
206915
the entangled fibrous layers are next adjacent the reinforcing layer. The jet sides of the fibrous layers comprise the outer surfaces of the reinforced fabric laminate. The reinforcing layer is then secured to the first 5 and second fibrous layers. If the binder is not added before the laminate is assembled, the binder may be printed on the laminate either -before or after the reinforcing layer is secured to the fibrous layers. The reinforcing layer may comprise a thermoplastic material which 10 may be heat bonded to the first and second fibrous layers. It is essential that the reinforcing layer not be destroyed in the laminating process, but remain to lend dimensional stability to the laminate. It is not essential that the reinforcing layer be thermoplastic as it may 15 be adhesively secured to the first and second fibrous layers. The reinforcing layer may comprise a scrim or a netting. In its most preferred embodiment, the reinforcing layer comprises a fibrous netting with a thermoplastic coating.
The nonwoven, reinforced fabric laminate of the present invention and the method of making the same comprises a low cost alternative to reinforced entangled fabric laminates. The fabric laminate has good utility as a 25 wipe, and in particular, possess excellent abrasion resistance, dimensional stability and absorbency.
Each of the nonwoven fibrous layers of the reinforced fabric laminate of the invention is made by forming a web 30 of overlapping, intersecting fibers, supporting the web on an apertured pattern member having apertures arranged in a pattern, directing high speed jets of fluid at the web to randomly and lightly entangle the web into a fibrous layer having a pattern of high density regions interconnected by 35 fibers extending between regions, said layer having a jet side disposed nearest the jets, and applying adhesive
206915
binder material to the jet side of the layer of lightly entangled fibers. The fibrous layer may be dried before the application of binder, and the binder may be added before or after superimposing the fibrous layers to form 5 the laminate.
The fibrous web can be formed in any convenient-known manner, as by air-laying or carding. The web is then lightly entangled using method and apparatus similar to 10 those disclosed by Evans in U.S. Patent No. 3,485,706. It is an important feature of the invention_that the fibrous layer is lightly entangled. For instance, it is preferred that the lightly entangled fibrous layer have a structural measure of fiber entanglement of less than 0.1. (The test 15 procedure for measuring the structural measure of fiber entanglement is set forth in New Zealand Patent No. 192,856).
A typical apparatus for making the fibrous layer used in 20 " the process of the invention employs rows of orifices through which fluid (usually water) under pressure forms essentially columnar jets. A suitable apparatus has up to 20-25 rows of orifices, with about 30-50 orifices per linear inch. The orifices are preferably circular, with 25 diameters of from 0.005 to 0.007 inch. The travelling fibrous web can be positioned about 1-2 inches below the orifices.
Using the above-described typical apparatus, representa-30 tive conditions include a liquid pressure of about 200-700 psi and a web speed of up to 100 yards per minute, for a fibrous web weighing about 1/2 to 2-1/2 ounces per square yard. Routine experimentation that is well within the ordinary skill in the art will suffice to determine the 35 desired conditions for particular cases.
@ 20691i
According to one embodiment of the method of the present invention, after the fibrous layer has been lightly entangled, it is surface bonded, preferably print bonded, by passing the fibrous layer through a print bonding 5 station employing a set of counterrotating rolls comprising the upper (back-up)-roll which is adjustable, and the lower (applicator) roll which is engraved with a predetermined pattern to be printed. The lower roll is partially immersed in a bath of binder solution or 10 suspension. As the roll rotates, it picks up binder, and a doctor blade wipes the roll clean except for the binder contained in the engraved pattern. As the fibrous layer passes through the nip between the rolls, the binder is printed on the layer from the engraved pattern. This 15 procedure is well known in the art. U.S. Patents which disclose such print bonding of nonwoven fibrous webs includes Nos. 2,705,498, 2,705,687, 2,705,688, 2,880,111, and 3,009,822. If desired the fibrous layer may also be overall saturation bonded. It is preferred that the 20 fibrous layers be dried prior to the application of the binder material.
The adhesive binder employed can be any of the aqueous latex binders that are conventionally employed as binders 25 for nonwoven fabrics. Such binders include acrylics,
ethylene-vinyl acetate copolymers, SBR latex rubbers, and the like.
After the binder has been applied, the printed fibrous 30 layer may be dried in the usual fashion, as by passing the web over a series of drying cans.
The binder is employed in an effective amount, that is, that amount which will result in a fibrous layer having 35 sufficient abrasion resistance for the intended end-use
206915
application. In addition, the binder prevents disentangling of the surface fibers, thereby maintaining the cohe-siveness of the fibrous layer and laminate. The exact amount of binder employed depends, in part, upon factors 5 such as nature of binder, and_the like. Usually, an effective amount will be found within the range of from about 5 to about 30 weight percent, based upon weight of fibers plus binder.
The fibers used in the reinforced fabric and process of the invention are a combination of absorbent or hydrophil-ic fibers such as rayon, cotton, and high strength fibers such as polyester, polyolefin, acrylic, or nylon fibers. The fibers may have a denier of from 1 to 1.5 or more and. 15 they may be in the form of short fibers such as 1/4 inch in length upto as long as continuous filament fibers. Preferably, fibers in the range of 3/4 to 2 inches in length are used. The weight of the fibrous layers used in the present invention may vary from 100 grains per square 20 yard to a few thousand grains per square yard.
Though it is generally known that the presence of binder reduces absorbency, and that the jet side surface of a lightly entangled fibrous layer has greater abrasive 25 resistance than the belt side of the fabric layer; adding binder to the jet side, or strength to strength, made possible by the use of the reinforcing layer, is not known or obvious. The fibrous layers and the fabric laminate maintain all the absorbency of the non-bonded loosely 30 entangled belt side of the fibrous web, and require that less binder be added to the stronger jet side to achieve excellent abrasion resistance while giving good feel.
The foregoing description is illustrative but is not to be 35 taken as limiting. Other variations and modifications are possible without departing from the spirit and scope of the present invention.
206915
Claims (8)
1. A method of making a low cost, nonwoven, reinforced fabric laminate having excellent abrasion resistance, dimensional stability and absorbency comprising the steps of: (a) lightly entangling a web of fibers utilizing high speed substantially columnar jets of fluid to form a first fibrous layer having a jet side and an other side; (b) applying binder to the jet side of the first fibrous layer; (c) superimposing a reinforcing layer upon the other side of said first fibrous layer; (d) loosely entangling a web of fibers utilizing high speed substantially columnar jets of water to form a second fibrous layer having a jet side and an other side ; (e) applying binder to the jet side of said second fibrous layer; (f) superimposing said second fibrous layer upon said first fibrous layer and reinforcing layer, with the other side of said second fibrous layer next adjacent the reinforcing layer; and (g) securing said reinforcing layer to each of said first and second fibrous layers.
2. The method of Claim 1 further comprising the step of drying the binder prior to superimposing the first and second fibrous layers and the reinforcing layer. / /; 206915' -9-
3. The method of Claim 1 wherein said reinforcing layer is thermoplastic and is secured to said first and second fibrous layers by the use of heat.
4. The method of Claim 1 wherein said reinforcing layer comprises a scrim.
5. A method of making a low cost, nonwoven reinforced fabric laminate having excellent abrasion resistance, dimensional stability and absorbency comprising the steps of lightly entangling two separate webs of fibers utilizing high speed substantially columnar jets of fluid to form first and second separate fibrous layers, each having a jet side and an other side, superimposing said first and second fibrous layers and a reinforcing layer with the other side of the first and second fibrous layers next adjacent the reinforcing layer, and then, in either order, securing the reinforcing layer to the first and second fibrous layers, and applying binder to the jet side of the first and second fibrous layers now forming the outer surfaces of the fabric laminate.
6. The method of Claims 1 or 5 wherein said fibers comprise both absorbent fibers and high strength fibers.
7. The method of Claim 6 wherein said absorbent fibers are cotton and/or rayon, and said high strength fibers are selected from the group consisting of polyester, polyolefin) acrylic or nylon fibers.
8. A nonwoven reinforced wipe having excellent abrasion resistance and absorbency made by the method of Claims 1 or 5. WEST-WALKER, McCABE RSCP»VPD
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US46249083A | 1983-01-31 | 1983-01-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
NZ206915A true NZ206915A (en) | 1986-07-11 |
Family
ID=23836599
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NZ206915A NZ206915A (en) | 1983-01-31 | 1984-01-20 | Non-woven laminate fabric formed by jetentanglement |
Country Status (10)
Country | Link |
---|---|
EP (1) | EP0120564B1 (en) |
AU (1) | AU565794B2 (en) |
DE (1) | DE3481069D1 (en) |
DK (1) | DK41184A (en) |
ES (2) | ES529269A0 (en) |
FI (1) | FI840359A (en) |
IE (1) | IE55341B1 (en) |
NZ (1) | NZ206915A (en) |
PT (1) | PT78035A (en) |
ZA (1) | ZA84696B (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4950531A (en) * | 1988-03-18 | 1990-08-21 | Kimberly-Clark Corporation | Nonwoven hydraulically entangled non-elastic web and method of formation thereof |
EP0418493A1 (en) * | 1989-07-28 | 1991-03-27 | Fiberweb North America, Inc. | A nonwoven composite fabric combined by hydroentangling and a method of manufacturing the same |
CA2011515C (en) * | 1990-03-05 | 1994-10-11 | Roger Boulanger | Method for producing a non-woven fabric with a thermally activated adhesive surface, resulting product and applications thereof |
US5470648A (en) * | 1994-06-10 | 1995-11-28 | E. I. Du Pont De Nemours And Company | Composite fabrics of nonwoven nylon layers and fiberglass scrim |
US5874159A (en) * | 1996-05-03 | 1999-02-23 | E. I. Du Pont De Nemours And Company | Durable spunlaced fabric structures |
CA2306850A1 (en) * | 1997-10-17 | 1999-04-29 | Kimberly-Clark Worldwide, Inc. | Textured nonwoven composite material and method for making the same |
KR20010031798A (en) * | 1997-11-05 | 2001-04-16 | 메리 이. 보울러 | Durable, Absorbent Spunlaced Fabric Structures |
US6797226B2 (en) | 2000-10-10 | 2004-09-28 | Kimberly-Clark Worldwide, Inc. | Process of making microcreped wipers |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1560778A1 (en) * | 1964-06-16 | 1969-12-04 | Freudenberg Carl Fa | Process for the manufacture of combined textile composites |
DE1503736A1 (en) * | 1965-08-03 | 1969-06-04 | Baumwoll Weberei Arthur Pongs | Cleaning cloth |
FR2343595A1 (en) * | 1976-03-09 | 1977-10-07 | Beghin Say Sa | Wool coated sheet on supports having predried adhesive coatings - to avoid wool soiling by contact with wet adhesives |
PH15660A (en) * | 1979-02-15 | 1983-03-11 | Chicopee | Nonwoven fabric and method for producing the same |
-
1984
- 1984-01-20 NZ NZ206915A patent/NZ206915A/en unknown
- 1984-01-30 IE IE213/84A patent/IE55341B1/en not_active IP Right Cessation
- 1984-01-30 ES ES529269A patent/ES529269A0/en active Granted
- 1984-01-30 ZA ZA84696A patent/ZA84696B/en unknown
- 1984-01-30 DK DK41184A patent/DK41184A/en not_active Application Discontinuation
- 1984-01-30 FI FI840359A patent/FI840359A/en not_active Application Discontinuation
- 1984-01-30 PT PT78035A patent/PT78035A/en not_active IP Right Cessation
- 1984-01-30 DE DE8484300564T patent/DE3481069D1/en not_active Expired - Lifetime
- 1984-01-30 EP EP84300564A patent/EP0120564B1/en not_active Expired - Lifetime
- 1984-01-31 AU AU23937/84A patent/AU565794B2/en not_active Ceased
-
1985
- 1985-02-15 ES ES540474A patent/ES8602989A1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DK41184D0 (en) | 1984-01-30 |
EP0120564A3 (en) | 1987-09-16 |
FI840359A (en) | 1984-08-01 |
ES8506120A1 (en) | 1985-06-01 |
IE55341B1 (en) | 1990-08-15 |
AU2393784A (en) | 1984-08-02 |
EP0120564B1 (en) | 1990-01-17 |
ES529269A0 (en) | 1985-06-01 |
DE3481069D1 (en) | 1990-02-22 |
FI840359A0 (en) | 1984-01-30 |
PT78035A (en) | 1984-02-01 |
AU565794B2 (en) | 1987-10-01 |
EP0120564A2 (en) | 1984-10-03 |
ES540474A0 (en) | 1985-11-16 |
ES8602989A1 (en) | 1985-11-16 |
ZA84696B (en) | 1985-09-25 |
IE840213L (en) | 1984-07-31 |
DK41184A (en) | 1984-08-01 |
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