Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
  • B29C45/16—Making multilayered or multicoloured articles
  • B29C45/1671—Making multilayered or multicoloured articles with an insert
• • A—HUMAN NECESSITIES
  • A41—WEARING APPAREL
  • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
  • A41D27/00—Details of garments or of their making
  • A41D27/08—Trimmings; Ornaments
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C31/00—Handling, e.g. feeding of the material to be shaped, storage of plastics material before moulding; Automation, i.e. automated handling lines in plastics processing plants, e.g. using manipulators or robots
  • B29C31/04—Feeding of the material to be moulded, e.g. into a mould cavity
  • B29C31/06—Feeding of the material to be moulded, e.g. into a mould cavity in measured doses, e.g. by weighting
  • B29C31/061—Feeding of the material to be moulded, e.g. into a mould cavity in measured doses, e.g. by weighting using stationary volumetric measuring chambers
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C33/00—Moulds or cores; Details thereof or accessories therefor
  • B29C33/20—Opening, closing or clamping
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
  • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
  • B29C45/17—Component parts, details or accessories; Auxiliary operations
  • B29C45/18—Feeding the material into the injection moulding apparatus, i.e. feeding the non-plastified material into the injection unit
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
  • B29C45/17—Component parts, details or accessories; Auxiliary operations
  • B29C45/26—Moulds
  • B29C45/2602—Mould construction elements
  • B29C45/2606—Guiding or centering means
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
  • B29C45/17—Component parts, details or accessories; Auxiliary operations
  • B29C45/26—Moulds
  • B29C45/27—Sprue channels ; Runner channels or runner nozzles
  • B29C45/2756—Cold runner channels
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
  • B29C45/17—Component parts, details or accessories; Auxiliary operations
  • B29C45/26—Moulds
  • B29C45/27—Sprue channels ; Runner channels or runner nozzles
  • B29C45/28—Closure devices therefor
  • B29C45/2803—Closure devices therefor comprising a member with an opening or the injection nozzle movable into or out of alignment with the sprue channel or mould gate
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
  • B29C45/17—Component parts, details or accessories; Auxiliary operations
  • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
  • B29C45/53—Means for plasticising or homogenising the moulding material or forcing it into the mould using injection ram or piston
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B44—DECORATIVE ARTS
  • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
  • B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
  • B44C1/18—Applying ornamental structures, e.g. shaped bodies consisting of plastic material
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B44—DECORATIVE ARTS
  • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
  • B44C3/00—Processes, not specifically provided for elsewhere, for producing ornamental structures
  • B44C3/04—Modelling plastic materials, e.g. clay
  • B44C3/046—Modelling plastic materials, e.g. clay using a modelling surface, e.g. plate
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
  • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
  • B29C35/0266—Local curing
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
  • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
  • B29C45/14008—Inserting articles into the mould
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
  • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
  • B29C45/14836—Preventing damage of inserts during injection, e.g. collapse of hollow inserts, breakage
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
  • B29C45/17—Component parts, details or accessories; Auxiliary operations
  • B29C45/18—Feeding the material into the injection moulding apparatus, i.e. feeding the non-plastified material into the injection unit
  • B29C45/1816—Feeding auxiliary material, e.g. colouring material
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
  • B29C45/17—Component parts, details or accessories; Auxiliary operations
  • B29C45/26—Moulds
  • B29C45/27—Sprue channels ; Runner channels or runner nozzles
  • B29C45/2725—Manifolds
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
  • B29C45/17—Component parts, details or accessories; Auxiliary operations
  • B29C45/26—Moulds
  • B29C45/27—Sprue channels ; Runner channels or runner nozzles
  • B29C45/2737—Heating or cooling means therefor
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
  • B29C45/17—Component parts, details or accessories; Auxiliary operations
  • B29C45/76—Measuring, controlling or regulating
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
  • B29C45/17—Component parts, details or accessories; Auxiliary operations
  • B29C45/76—Measuring, controlling or regulating
  • B29C45/7613—Measuring, controlling or regulating the termination of flow of material into the mould
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
  • B29C45/17—Component parts, details or accessories; Auxiliary operations
  • B29C45/76—Measuring, controlling or regulating
  • B29C45/77—Measuring, controlling or regulating of velocity or pressure of moulding material
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
  • B29K2083/00—Use of polymers having silicon, with or without sulfur, nitrogen, oxygen, or carbon only, in the main chain, as moulding material
  • B29K2083/005—LSR, i.e. liquid silicone rubbers, or derivatives thereof
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
  • B29K2101/00—Use of unspecified macromolecular compounds as moulding material
  • B29K2101/10—Thermosetting resins
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
  • B29K2713/00—Use of textile products or fabrics for preformed parts, e.g. for inserts
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
  • B29L2031/00—Other particular articles
  • B29L2031/722—Decorative or ornamental articles

Definitions

• Figure 4 is another illustration of a preferred embodiment of an 99/10156
• Figure 6e illustrates an alternative preferred embodiment of the nozzle of Figure 6d; 99/10156
• Figure 8a is an illustration of the die set of Figure 4 in a disengaged position
• Figure 11c is a cross-sectional view of the die set of Figure 11 b illustrating the interaction of the runner plate, insulating plate and mold;
• Figure 21 is an illustration of a preferred embodiment of a control system for use in the apparatus of Figures 1, 2 and 15;
• the silicone resin supply 30 may comprise any number of conventional silicone resin supplies, modified in accordance with the teachings of the present disclosure, and adapted to provide a controlled amount of silicone resin to the silicone molding device 20.
• the silicone resin supply 30 provides a controlled supply of silicone resin, or other thermosetting polymer resin, to the silicone molding device 20 using a conventional supply conduit 50.
• the silicone resin supply 30 will comprise a plurality of silicone supplies to thereby permit the molding device 20 to simultaneously mold a plurality of silicone bodies of a plurality of colors onto an article of clothing. Examples of such silicones include at least the following: GE LIM
• the actuator may comprise any number of conventional actuators such as, for example, pneumatic, hydraulic or electro-mechanical actuators.
• the movement of the actuator 310 may be controlled using a combination of any number of conventional feedback control sensors and algorithms such as, for example, proportional-integral-differential.
• the actuator 310 is a hydraulic actuator model no. DIVW4CWSWF, including pressure feedback to prevent damage to the article of clothing 340 during engagement with the die set 320, available from Parker-Hannifin located in
• the resilient guide members 415 resiliently couple the runner plate 410 to the mold 420.
• the resilient guide members 415 further maintain the alignment of the mold 420 with respect to the runner plate 410.
• the platen 330 further includes supporting members 940a and 940b, rolling members 945a and 945b, guide track members 950a and 950b, and references stop members 955a and 955b.
• the platen is moved into and out of position below and opposite to the die set 320. In this manner, loading and unloading of substrates 340 onto and off of the platen is facilitated by giving the operator more room to operate in.
• this particularly preferred embodiment also provides added safety by eliminating the possibility of injury to the operator caused by mistaken engagement of the die set 320 with the platen
• Each silicone resin flow passage 1110 includes a silicone resin inlet
• the fluidic slip ring 1225 receives a supply of silicone resin from one of the silicone supplies 30, in a well known manner, and transmits the silicone resin to the axially aligned inlet passage 1240 of the annular member 1235.
• Rotation of the annular member 1235 by the rotary actuator 1230 then controllably moves the radial outlet passages 1245 of the annular member 1235 into and out of alignment with the silicone resin outlet passages 510 and 1155 of the manifolds 405, 425 and 1140.
• the molding device 20 further includes at least one selection valve 1305 and an exhaust pump 1310.
• the selection valve 1305 controllably connects a corresponding one of the silicone inlet passages 505 and 1150 of the manifolds 405, 425 and 1140 to a silicone resin supply 30 or the exhaust pump 1310.
• the injection of silicone resin into the die set 320 may be precisely controlled and stopped by action of the selection valve 1305.
• the exhaust pump 1310 will controllably remove any excess silicone resin injected into the die set 320. This in turn will minimize or prevent the problem of silicone resin dripping whereby a small amount of excess silicone resin is introduced into the flow passages of the die set 320.
• thermosetting polymer resin drips 1405 that remain within the flow passages of the die set 320 are blown out into the mold cavities 710 of the mold 420 by a blast of compressed air or short burst of high pressure thermosetting polymer.
• the thermosetting polymer resin drips 1405 are then molded into the three dimensional body of thermosetting polymer resin within the mold cavity 710 during a normal molding cycle. In this manner, regardless of whether the thermosetting polymer resin drip 1405 is cured or uncured within the die set, the thermosetting polymer resin drip is completely removed and molded into the three dimensional body.
• each of the injectors 1650 comprise a silicone resin inlet 2005, a silicone resin distribution junction 2010, one or more check valves 2015a-2015c, one or more silicone resin feed lines 2020a-2020c, one or more silicone resin feed junctions 2025a-2025c, one or more silicone resin injection chambers 2030a-2030c, one or more injection pistons 2035a-2035c, one or more injection housings 2040a-2040c, one or more actuator rods 2045a-2045c, an actuator 2050, one or more position sensors 2055a-2055b, one or more silicone resin injection lines 2060a-2060c, and one or more flow control valves 2065a-2065c.
• the injectors 1650 may controllably inject a controlled amount of a supply of thermosetting polymer resin into one or more manifolds 405a-405c, 425a-425c or 1140a-1140c of one or more corresponding molding devices 20a-20c.
• the control system 40 preferably includes a number of conventional operator safety devices including palm switches 2135 and light curtains 2140.
• the palm switches 2135 are of conventional design and operation and protect the operator from physical injury by requiring the operator to press both palm switches during engagement of the die sets of the molding devices 20.
• the light curtains 2140 are of conventional design and construction and surround the molding devices 20 with a light barrier that, if broken, shuts down the molding devices 20 to protect the operator from injury.
• the article of clothing 2300 includes a T-shirt 2305, or other similar garment, such as, for example, a cap, or purse and at least one three dimensional body of silicone, or other thermosetting polymer, 2310 molded onto the T-shirt 2305, or other garment.
• the article of clothing 2300 includes a plurality of three dimensional bodies of silicone, or other thermosetting polymers, 2310a- 2310c.
• a three dimensional body 2310 of silicone,. or some other thermosetting polymer, including a cavity 2405 is formed onto a t-shirt 2305, or some other garment or substrate, preferably using the apparatus 10 and accompanying methods described above.
• the cavity 2405 may be provided in the three dimensional body 2310 by providing an appropriate mold cavity as will be recognized by persons having ordinary skill in the art.
• the cavity may be provided in the three dimensional body 2310 by providing an appropriate mold cavity as will be recognized by persons having ordinary skill in the art.
• the element 2335 is placed into the mold cavity 2515 onto the skim coating 2505 of silicone, or some other thermosetting polymer.
• the outer surface of the element 2335 is throughly cleaned of substantially all foreign material and dried prior to placement within the mold cavity 2515 to facilitate the subsequent encapsulation process.
• the element 2335 is placed in the approximate center of the mold cavity 2515 to facilitate the subsequent encapsulation process.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Manufacturing & Machinery (AREA)
• Textile Engineering (AREA)
• Robotics (AREA)
• Chemical & Material Sciences (AREA)
• Dispersion Chemistry (AREA)
• Moulds For Moulding Plastics Or The Like (AREA)

Applications Claiming Priority (13)

Publications (2)

Family

ID=27560343

Family Applications (1)

Country Status (2)

Cited By (2)

Families Citing this family (2)

Family Cites Families (14)

• 1998
  • 1998-08-25 EP EP98944559A patent/EP0975459A4/de not_active Withdrawn
  • 1998-08-25 WO PCT/US1998/017795 patent/WO1999010156A1/en not_active Ceased

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