WO2005007548A1 - Nuevo sistema para el sellado mediante junta elástica de uniones roscadas en tuberías para conducción de fluidos y dispositivo aplicador para el mismo - Google Patents
Nuevo sistema para el sellado mediante junta elástica de uniones roscadas en tuberías para conducción de fluidos y dispositivo aplicador para el mismo Download PDFInfo
- Publication number
- WO2005007548A1 WO2005007548A1 PCT/ES2004/070051 ES2004070051W WO2005007548A1 WO 2005007548 A1 WO2005007548 A1 WO 2005007548A1 ES 2004070051 W ES2004070051 W ES 2004070051W WO 2005007548 A1 WO2005007548 A1 WO 2005007548A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- thread
- sealing
- sealing system
- coating
- elastic
- 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.)
- Ceased
Links
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/643—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H49/00—Unwinding or paying-out filamentary material; Supporting, storing or transporting packages from which filamentary material is to be withdrawn or paid-out
- B65H49/02—Methods or apparatus in which packages do not rotate
- B65H49/04—Package-supporting devices
- B65H49/06—Package-supporting devices for a single operative package
- B65H49/08—Package-supporting devices for a single operative package enclosing the package
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/10—Materials in mouldable or extrudable form for sealing or packing joints or covers
- C09K3/1025—Materials in mouldable or extrudable form for sealing or packing joints or covers characterised by non-chemical features of one or more of its constituents
- C09K3/1028—Fibres
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/693—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural or synthetic rubber, or derivatives thereof
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M7/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made of other substances with subsequent freeing of the treated goods from the treating medium, e.g. swelling, e.g. polyolefins
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
- F16L15/001—Screw-threaded joints; Forms of screw-threads for such joints with conical threads
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/18—Protection of pipes or pipe fittings against corrosion or incrustation specially adapted for pipe fittings
- F16L58/182—Protection of pipes or pipe fittings against corrosion or incrustation specially adapted for pipe fittings for screw-threaded joints
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/40—Reduced friction resistance, lubricant properties; Sizing compositions
Definitions
- This invention belongs to the technical sector of the sealing of threaded joints of fluid pipes, mainly in the field of plumbing.
- the object of the present invention is to develop a system that is different and improves existing systems and that is also better suited to a greater number of applications.
- the oldest system is the use of hemp fibers together with a paste that does not dry, made from oils.
- the paste's mission is to lubricate the thread, making it easier to tighten and preserve the hemp. Hemp is a virtually no fiber
- hemp and sealant paste Although the use of hemp and sealant paste is widespread, it is not suitable for facilities intended for the transport of water for human consumption, since hemp does not meet the requirements established for materials in contact with drinking water by promoting the growth of microorganisms
- hemp is replaced by a synthetic polyamide fiber and the filament itself is impregnated with a paste that does not dry, not curable, based on oils.
- a device commonly used in other fields such as "dental floss.”
- This system is useful for small diameter metal threads, but it is not the most suitable for large threads with high tolerances. In these cases it is necessary to make many turns with this type of filament to achieve the desired tightness. In addition, it only allows a very limited modification of the final positioning or repositioning, since the caulking that is achieved is not elastic, since it is not, nor the filament, nor the paste.
- SUBSTITUTE SHEET (RULE 26) Perhaps the most universal system today is sealing with PTFE polytetrafluoroethylene tapes. These tapes are inert and resistant to most chemical agents, withstand moderate temperatures and are relatively inexpensive. Although its application is simple, among its disadvantages are that they are not suitable for plastic threads, since sometimes they cause their breakage to overcome the tightening force made on the thread, the resistance of the plastic material that composes it. On the other hand, PTFE is a plastic material but it has no elastic memory and does not recover its size, so it does not allow the correction of the position of the threaded joint pieces, which is a common practice in plumbing professionals or heating installers, for example.
- SUBSTITUTE SHEET (RULE 26) Unlike existing systems in the state of the art, made with pastes that do not dry and that by their own consistency have no elasticity properties, we propose a joint element capable of forming an elastic seal on the thread.
- the elastic element of the invention is fully cured and is chemically inert (being a crosslinked silicone), does not contaminate or stain, is suitable for plastic threads, does not require extreme tightening, allows the final positioning to be selected and has a good repositioning tolerance.
- ES2171293 (WO98 / 47805) also describes a sealing thread coated with a curable composition.
- the curable compositions used in this prior art patent are of the type of oils with fillers, where the oil can be selected from flaxseed oil, silicone oils or mineral oils, with the drawbacks already described for this type of systems sealing, mainly that they do not constitute an elastic seal.
- other coating polymers described in this prior art patent are different from those used in the present invention. These are compositions based on one or more mono and poly functional reactive monomers of acrylate and methacrylate esters.
- the sealing system of the present invention although it also has a good mechanical resistance, due to the coating of the textile support by means of the silicone rubber-based polymer, it has elasticity for what it is
- SUBSTITUTE SHEET (RULE 26) applicable in a greater type of threads of different classes of pipes, including the most common in plumbing and particularly in plastic pipes.
- This elastic characteristic of the sealing system of the invention gives it a whole series of advantages over known sealing systems. It is easy to apply. It can be applied in threads, in a very versatile way, to a wide variety of pipes, industrial and domestic, including plastic tubes. Complying with the same sealing conditions as the sealing systems described in the State of the Art, requires a lower tightening of the tubes, which is shown to be important, especially in plastic tubes, when not breaking or deforming the thread or the thread. nut due to excessive tightening.
- the aforementioned elastic character of the sealing system of the invention allows a greater repositioning of the threaded joints, a strong tightening is not necessary and also allows successive rectifications without losing the tightness.
- the proposed system is the only one that is based on the use of a coating that is cured in the manufacturing process, thus obtaining a completely inert coated filament, unlike existing ones that are either uncured or curable compositions once applied.
- the system is suitable for use in facilities intended for the conduction of water for human consumption, although this is not an exclusive feature of it.
- the new system for sealing by means of elastic joint of threaded joints in pipes for fluid conduction aims to constitute a
- SUBSTITUTE SHEET (RULE 26) true elastic joint, unlike other systems that act simply analogously to the application of bast. It consists of two parts, which we will describe separately: 1. Forming element of the joint.
- textile supports in the invention there may be mentioned bands, threads or fibers, multifilaments, based on polypropylene, polyethylene or polyamide polymers, or other natural or synthetic filaments.
- the elastic polymer and textile support do not alter the characteristics of drinking water and are chemically inert to the materials that transport the pipes where they are used (drinking and sanitary water, gas, city gas, etc.).
- the thermal stability of the crosslinked polymer assembly - textile support is sufficient to be used in applications made in the plumbing and heating sector.
- the elastic polymer is selected from at least one of the following: a silicone rubber, a polyurethane, a polyoxypropylene polymer, an acrylic polymer or any other type with elastic characteristics, with or without the addition of extenders (diluents), of one or more components, crosslinkable by heat, UV radiation, moisture or other systems.
- a silicone rubber preferably of silicone rubber
- a polyurethane preferably of silicone rubber
- an acrylic polymer or any other type with elastic characteristics, with or without the addition of extenders (diluents)
- liquid silicone rubbers that, with the intervention of a catalyst, preferably of platinum and subjecting them to high temperatures, manage to cross-link in a few minutes, which allows a continuous product manufacturing system.
- a catalyst preferably of platinum and subjecting them to high temperatures, manage to cross-link in a few minutes, which allows a continuous product manufacturing system.
- they can be Dow Corning, Silastic (Dow Corning) or Elastosil (Wacker Silicone) liquid silicone rubber
- Preferred multifilament yarn are those based on polypropylene polymers, since this material has characteristics of elasticity and impregnation superior to other synthetic fibers such as polyamide. Also this set has an elasticity in accordance with that of the coating polymer, which allows it to be compressed and recover its dimension when repositioning occurs. Specifically polypropylene threads with a dtex between 500 and 3000, preferably between 900 and 2500.
- a textile support of certain elasticity is impregnated, such as for example the polypropylene multifilament yarn, which has the adequate resistance to temperature and chemical agents and whose use is suitable in systems for fluid conduction, including water intended for human consumption.
- the proportion by weight between the textile base and the elastic coating can vary between 30% and 700% coating / textile ratio.
- this coating is cured.
- this curing is carried out in a high temperature tunnel, in a range between 90 ° C and 150 ° C.
- the multifilament thread is introduced continuously through a silicone rubber bath, completely covering its surface
- SUBSTITUTE SHEET (RULE 26) throughout its contour, the excess coating is then eliminated by passing the coated thread by a device, which consists of an elastic membrane with two perpendicular cuts, and by passing the thread through the hole at the intersection of both perpendicular obtains an adequate dosage of the coating product.
- the dosage is achieved by varying the following parameters: viscosity of the liquid rubber, speed of the passage of the filament through the cuvette and / or the rigidity of the membrane material.
- the silicone rubber of the coating is reticulated or cured, as indicated above. At the exit of the drying or curing tunnel there is a machine that will wind the filament in the ideal cores for the manufacture of spare parts for sale, to be placed in the appropriate application devices.
- an elastic element consisting of a fully crosslinked, chemically inert polymer, which is based on a textile support with a certain elasticity, which does not present any problem of aging or expiration, since both the textile filament and the crosslinked polymer have a virtually unlimited life under normal storage conditions, without the need to keep the assembly in a closed container or system, unlike other systems consisting of a fiber impregnated with a paste that does not dry.
- the textile support, fiber or multifilament thread gives the sealing element, strength and the coating gives it elasticity. The resistance allows the sealing element to be positioned in a stable and durable way.
- the elasticity allows to achieve a perfect seal without having to excessively tighten the threaded joints, hence it is very appropriate for conduits with plastic seals and allows them to reposition them.
- the resulting elastic element is easy to apply in the pipe thread area and allows an elastic joint to be obtained between the thread fillets when tightening it, which presents the basic advantages
- SUBSTITUTE SHEET (RULE 26) of this type of joints: it does not require an extreme tightening, it allows to select the final positioning and presents an important tolerance to repositioning. Likewise, since extreme tightening is not necessary, the system is suitable for plastic threads. Finally, being a cured and chemically inert element, it does not contaminate fluids or pipes.
- Another preferred embodiment of the invention consists of a coextrusion (2) of the silicone on the filament.
- a static mixer (3) through which the two components are circulated along a spiral
- the mixing is carried out as the components advance through the screw that forms The spiral and without any retention enter the coextrusion injector, so there is no risk that the mixture will be crosslinked before being placed under pressure on the filament.
- the dosage is mainly obtained by calibrating the nozzle and the feed pressure of the silicone, which can be of various types (A, B; Fig. 6).
- Another preferred embodiment of the invention (Fig. 6) consists in depositing a thin layer of lubricant (6) on the already crosslinked silicone.
- the product is more suitable for use in plastic threads.
- the elastic element that is the object of this project is wound with a fold over a frustoconical mandrel, in order to facilitate its exit from the applicator device.
- the applicator device consists of an enveloping body or housing (1), of adequate size and shape to fit in the user's hand. Inside the wrapping body there is a truncated conical reel (6) of elastic element (4), which is extracted by a hole (3) existing in the application part of the package. For cutting the elastic element, a blade (5) is incorporated, located adjacent to the exit hole of the thread. The opposite part of the application can be opened, using a lid
- SUBSTITUTE SHEET (RULE 26) practicable (2), which allows replacing the "replacement” of elastic element and reusing the applicator.
- the final presentation of the product is preferably in reels with cardboard or plastic core, which allows its sale as independent elements of the dispenser, that is, as spare parts, as presented in Figure 3. This makes a difference with dental floss systems. , in which the dispenser and the product constitute a whole that unnecessarily expensive the latter.
- the dispenser does not need to be hermetically sealed before use, since the elastic element is not perishable, it has no expiration, as it is a dry thread. Nor is it necessary to have an upper cover, for the same reason, with the added advantage that, since it does not have an upper cover to be used every time it is used, it is easier to handle, even with just one hand, a circumstance that occurs with frequency in plumbing work.
- FIG. 4 Another possible presentation for a smaller number of meters is the one described in Figure 4, which is very similar to the presentations of PTFE tapes that installers usually use.
- a small metal (11) or plastic blade that facilitates cutting is attached to the reel (10).
- This presentation has the advantage of being very economical and, above all, it is very similar to what installers use.
- the coil of sealing wire that can be protected with a cover (12) is wrapped around the spool.
- the object of sealing compounds of the standard is intended for use in contact with the gases of 1 to family (city gas), gases of 2 family (natural gas) and gases of 3 family (LPG, liquefied gases of oil), as well as hot water for heating systems (Class A), in gas appliances and their auxiliary equipment (Class B) as well as for the storage of LPG (Class C).
- Decitex or dtex represents the unit of expression of the linear mass, the weight in grams being 10,000 m of filament.
- SUBSTITUTE SHEET (RULE 26) pressure on the other.
- the assembly had a pressure gauge to measure the pressure inside.
- the threads coated with the crosslinked silicone were applied on the male threads of the assembly, filling the gaps of 3 threads.
- the female parts were threaded on these male threads with the usual means used by the plumbing professionals.
- the assemblies were completed with the different threads coated with the crosslinked silicone, they were pressurized with air up to 6 bars. In each case it was checked whether leaks occurred (Observation 1). After this test, the female thread was rotated 45 ° in the opposite direction to the tightening (disassembly). It was checked in each case if there were leaks (Observation 2). The female part was screwed again by rotating 180 ° in the direction of tightening. In each case it was checked whether leaks occurred (Observation 3). The absence of leaks in the observations is indicated as OK.
- a Dow Corning 3605 silicone rubber coating was prepared in the proportions of part A and part B indicated by the manufacturer (10: 1).
- Part A is composed of dimethyl siloxane with dimethyl vinyl termination (CAS 68083-19-2), treated silica (CAS 68909-20-6) and platinum as a catalyst.
- Part B is composed of dimethyl siloxane with dimethyl vinyl termination (CAS 68083-19-2) and methyl siloxane (CAS 63158-57-2).
- Two types of dtex polypropylene yarn 1950 and 2000 were taken.
- the coating was applied by means of the membrane application process explained above. The curing conditions of the silicone were 140 ° C for 5 minutes.
- the weight ratio between the coating and the threads is described in the following table:
- a SILASTIC 9252 / 150P (Dow Corning) silicone rubber coating was prepared in the proportions of part A and part B indicated by the manufacturer (10: 1).
- Part A is composed of dimethyl siloxane with dimethyl vinyl termination (CAS 68083-19-2), treated silica (CAS 68909-20-6) and platinum as a catalyst.
- Part B is composed of dimethyl siloxane with dimethyl vinyl termination (CAS 68083-19-2) and methyl siloxane (CAS 63158-57-2).
- the same dtex 1950 and 2000 polypropylene yarn used in example 1 was taken
- CN / tex unit of tenacity (Km of thread needed to break the thread by the action of its own mass.
- CN / cm breakage work unit. It is the energy needed to break the wire and corresponds to the area under the force-elongation curve from the origin to the breaking point.
- Figure 1 External view of the application device consisting of a body (1), a cover, in this example, located at the lower end (2,) a hole (3), in this case, arranged at the upper end by where the textile filament (4) coated by silicone rubber goes outside.
- the cutting device (5) is arranged adjacent to the thread exit hole.
- Figure 2 View of the interior of the application device where the spare part (6) is observed around whose core the thread (4) is wound. Said replacement is immobilized on the lower cover (2) by means of the stops (7), for example as a perimeter flange.
- the lower cover (2) is embedded in the applicator body by means of recesses (8) formed therein and the corresponding projections (9) made at the ends of the cover itself.
- Figure 3 Replacement containing 4 bobbins of thread.
- Figure 4 Application device on reel.
- Figure 5 Average force / elongation diagram of all coils.
- Figure 6 Scheme of a preferred embodiment of the method of obtaining elastic yarn of the invention.
- Thread feeding (2) co-extinguisher; (3) static mixer; (4) silicone feeder (A, B); (5) dryer; (6) lubricator; (7) windings.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Sealing Material Composition (AREA)
- Gasket Seals (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Screw Conveyors (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE602004009187T DE602004009187D1 (de) | 2003-07-18 | 2004-07-16 | Neues system zur abdichtung von schraubverbindungen in rohren zur beförderung von fluiden |
| EP04742089A EP1647511B1 (en) | 2003-07-18 | 2004-07-16 | Novel system for the gasket sealing of screwed connections in pipes for the conveyance of fluids |
| BRPI0412264-0A BRPI0412264A (pt) | 2003-07-18 | 2004-07-16 | sistema para vedação de gaxeta de uniões roscadas em tubos para a condução de fluidos, e dispositivo aplicador para o mesmo |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ESP200301705 | 2003-07-18 | ||
| ES200301705A ES2224868B1 (es) | 2003-07-18 | 2003-07-18 | Nuevo sistema para el sellado mediante junta elastica de uniones roscadas en tuberias para conduccion de fluidos y dispositivo aplicador para el mismo. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2005007548A1 true WO2005007548A1 (es) | 2005-01-27 |
Family
ID=34072917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/ES2004/070051 Ceased WO2005007548A1 (es) | 2003-07-18 | 2004-07-16 | Nuevo sistema para el sellado mediante junta elástica de uniones roscadas en tuberías para conducción de fluidos y dispositivo aplicador para el mismo |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP1647511B1 (es) |
| CN (1) | CN1826276A (es) |
| AT (1) | ATE374158T1 (es) |
| BR (1) | BRPI0412264A (es) |
| DE (1) | DE602004009187D1 (es) |
| ES (1) | ES2224868B1 (es) |
| WO (1) | WO2005007548A1 (es) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006023729B3 (de) * | 2006-02-06 | 2007-04-26 | Sprügel, Friedrich A. | Gewindedichtfaden und Verfahren zu seiner Herstellung |
| GB2534198A (en) | 2015-01-16 | 2016-07-20 | Henkel IP & Holding GmbH | Sealant material |
| GB2534199A (en) | 2015-01-16 | 2016-07-20 | Henkel IP & Holding GmbH | Sealant material |
| GB201617938D0 (en) | 2016-10-24 | 2016-12-07 | Henkel IP & Holding GmbH | Sealant material |
| US10815097B2 (en) * | 2019-03-13 | 2020-10-27 | Reelex Packaging Solutions, Inc. | Payout tubes |
| CN112030565A (zh) * | 2020-09-16 | 2020-12-04 | 四会市昊天密封材料有限公司 | 一种深度螺纹密封浆线及其制造方法和制造装置 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB415501A (en) * | 1933-03-21 | 1934-08-30 | Walter Robertson | Improvements in or relating to holders for spools or cheeses of twine or the like |
| ES2057283T3 (es) * | 1989-09-01 | 1994-10-16 | Sonderhoff Ernst Fa | Procedimiento para la fabricacion de una espuma para juntas de silicona de poros finos y elastica blanda con elevada resiliencia para juntas de tapas y cajas. |
| ES2161091T3 (es) * | 1998-01-09 | 2001-11-16 | Datwyler Ag Gummi Und Kunststo | Material para junta de obturacion que se hincha bajo el efecto del agua. |
| ES2171293T3 (es) * | 1997-04-18 | 2002-09-01 | Loctite R & D Ltd | Material para sellar juntas de tuberias roscadas y dispensador para el mismo. |
-
2003
- 2003-07-18 ES ES200301705A patent/ES2224868B1/es not_active Withdrawn - After Issue
-
2004
- 2004-07-16 DE DE602004009187T patent/DE602004009187D1/de not_active Expired - Lifetime
- 2004-07-16 EP EP04742089A patent/EP1647511B1/en not_active Expired - Lifetime
- 2004-07-16 AT AT04742089T patent/ATE374158T1/de not_active IP Right Cessation
- 2004-07-16 WO PCT/ES2004/070051 patent/WO2005007548A1/es not_active Ceased
- 2004-07-16 CN CNA2004800208042A patent/CN1826276A/zh active Pending
- 2004-07-16 BR BRPI0412264-0A patent/BRPI0412264A/pt not_active IP Right Cessation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB415501A (en) * | 1933-03-21 | 1934-08-30 | Walter Robertson | Improvements in or relating to holders for spools or cheeses of twine or the like |
| ES2057283T3 (es) * | 1989-09-01 | 1994-10-16 | Sonderhoff Ernst Fa | Procedimiento para la fabricacion de una espuma para juntas de silicona de poros finos y elastica blanda con elevada resiliencia para juntas de tapas y cajas. |
| ES2171293T3 (es) * | 1997-04-18 | 2002-09-01 | Loctite R & D Ltd | Material para sellar juntas de tuberias roscadas y dispensador para el mismo. |
| ES2161091T3 (es) * | 1998-01-09 | 2001-11-16 | Datwyler Ag Gummi Und Kunststo | Material para junta de obturacion que se hincha bajo el efecto del agua. |
Also Published As
| Publication number | Publication date |
|---|---|
| DE602004009187D1 (de) | 2007-11-08 |
| ATE374158T1 (de) | 2007-10-15 |
| ES2224868B1 (es) | 2007-12-16 |
| CN1826276A (zh) | 2006-08-30 |
| ES2224868A1 (es) | 2005-03-01 |
| EP1647511B1 (en) | 2007-09-26 |
| EP1647511A1 (en) | 2006-04-19 |
| BRPI0412264A (pt) | 2006-09-05 |
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