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US20060286916A1 - Injection compression moulding - Google Patents

Injection compression moulding Download PDF

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Publication number
US20060286916A1
US20060286916A1 US11/457,597 US45759706A US2006286916A1 US 20060286916 A1 US20060286916 A1 US 20060286916A1 US 45759706 A US45759706 A US 45759706A US 2006286916 A1 US2006286916 A1 US 2006286916A1
Authority
US
United States
Prior art keywords
core
mould
sealing ring
closed position
fully closed
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.)
Abandoned
Application number
US11/457,597
Other languages
English (en)
Inventor
Peter Clarke
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Im Pak Technologies Ltd
IM Pak Tech Inc
Original Assignee
IM Pak Tech Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by IM Pak Tech Inc filed Critical IM Pak Tech Inc
Assigned to IM-PAK TECHNOLOGIES, LTD. reassignment IM-PAK TECHNOLOGIES, LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CLARKE, PETER REGINALD
Publication of US20060286916A1 publication Critical patent/US20060286916A1/en
Abandoned legal-status Critical Current

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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
    • B29C45/17—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
    • B29C45/2608—Mould seals
    • 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
    • B29C45/34—Moulds having venting 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
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/56—Means for plasticising or homogenising the moulding material or forcing it into the mould using mould parts movable during or after injection, e.g. injection-compression moulding
    • B29C45/561—Injection-compression moulding
    • 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
    • B29C45/40—Removing or ejecting moulded articles
    • B29C2045/4078—Removing or ejecting moulded articles using stripping means
    • 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
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • 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
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7132—Bowls, Cups, Glasses

Definitions

  • the present invention relates to injection compression moulding and is concerned in particular with injecting a plastics material into a mould cavity.
  • WO/2002/058909 which is believed to represent the closest prior art to the present invention, describes a mould for mounting between the platens of an injection moulding machine for injection compression moulding of a thin walled article.
  • the mould comprises a female mould half mounted on the stationary platen of a moulding machine and a pressure plate which is mounted on the moving platen and carries a core for closing the mould (there is no reason why these two parts cannot be interchanged if desired).
  • the core passes through, and is sealed relative to, a cylindrical bore in a rim closure ring arranged between the female mould half and the pressure plate.
  • the rim closure ring is used to seal the mould cavity before the core reaches its end position.
  • Injection compression moulding does however present certain problems that are not encountered in conventional injection moulding.
  • the first of the problems is concerned with the alignment of the mould parts.
  • conical mating surfaces are provided on the different parts of the mould which centre them relative to one another when the mould is fully closed.
  • the mould parts may not be fully aligned, that is to say they may not be concentric or they may not be co-axial.
  • the guiding that is achieved by the tie bars, or other guiding systems used by machine manufacturers of the injection moulding machine may not guarantee alignment to the required accuracy, especially when it is noted that the main purpose of using injection compression moulding is to achieve very large flow length to thickness ratios in articles such as cups, margarine tubs or dustbins.
  • a further problem in injection compression moulding is that of containing the plastics material within the cavity as its volume is being reduced.
  • this has been achieved by using a rim closure ring to close off the cavity in the female mould part and by the core passing through a cylindrical hole in the rim closure ring.
  • This is not a satisfactory solution because it is difficult to form a rim closure ring with a cylindrical bore that effectively seals around the core and yet allows the core to pass freely through it.
  • the clearance required to permit reliable and free movement of the core relative to the rim closure ring does not permit creation of a perfect seal and results in an unacceptable witness line around the rim of the moulded article.
  • the present invention provides a mould for injection compression moulding of an article.
  • the mould includes a female mould part, a core, and a sealing ring.
  • the core and the female mould part are movable relative to one another between an open and a fully closed position.
  • the sealing ring surrounds the core for effecting a seal between the female mould part and the core.
  • the core, the female mould part, and the sealing ring together define the cavity when the core is in the fully closed position.
  • the sealing ring makes sealing contact with the female mould part prior to the core reaching the fully closed position.
  • the sealing ring has a tapering section that seals against a tapering surface on the core only after the core has reached the fully closed position. There is a venting clearance between the tapering section of the sealing ring and the core as the core is advanced towards the fully closed position to compress plastics material injected into the mould cavity.
  • the present invention also provides an injection compression moulding machine that comprises a mould that includes a female mould part, a core, and a sealing ring.
  • the core and the female mould part are movable relative to one another between an open and a fully closed position.
  • the sealing ring surrounds the core for effecting a seal between the female mould part and the core.
  • the core, the female mould part, and the sealing ring together define the cavity when the core is in the fully closed position.
  • the sealing ring makes sealing contact with the female mould part prior to the core reaching the fully closed position.
  • the sealing ring has a tapering section that seals against a tapering surface on the core only after the core has reached the fully closed position. There is a venting clearance between the tapering section of the sealing ring and the core as the core is advanced towards the fully closed position to compress plastics material injected into the mould cavity.
  • FIG. 1 is a perspective view of a female mould part of a mould, looking into a cavity of the mould;
  • FIG. 2 is a perspective view of a core part of the mould, which fits into the female mould part of FIG. 1 ;
  • FIG. 3 is a perspective view of the female mould part of FIG. 1 and the core part of FIG. 2 , in a closed position of the mould;
  • FIG. 4 is a section through the core part of FIG. 2 ;
  • FIG. 5 shows part of the section of FIG. 4 drawn to an enlarged scale
  • FIG. 6 is a section through the mould when in the closed position.
  • the figures show a single core/cavity set for an injection compression mould for making an article in the form of a drinking cup having a generally flat base, a frustro-conical side wall and a lip in the form of an inverted “U” surrounding the mouth of the cup.
  • the core cavity/set may be one of many in a multi-cavity mould and that the different sets can be arranged side by side and/or stacked back to back. The ensuing description will, however, for simplicity, refer to a single cavity mould.
  • the mould comprises a female mould part 10 and a core part 12 which fit into one another in the manner shown in FIG. 3 to leave between them a mould cavity having the desired shape of the drinking cup to be moulded.
  • each of the guide fingers 14 has two parallel-sided locating sections.
  • One pair of locating sections 14 a is provided near the base of each guide finger 14 and the other pair of locating sections 14 b is provided at its free end.
  • the width of the locating sections 14 a exceeds the width of the locating sections 14 b .
  • the portion of each guide finger in between the locating sections 14 a and 14 b is shown as tapering gradually, but it may have any shape provided that its width never exceeds the width of the locating sections 14 a .
  • Mating parallel-side locating sections 18 a and 18 b are provided as part of U-shaped recesses defined by inserts 18 similarly secures to the female mould part 10 .
  • the mould part that is not connected to the injection system usually the core part 12
  • the core part 12 is mounted in such a manner as to allow it a small degree of lost motion relative to its machine platen. Strong spring pressure is used to retain the mould part in position but, if sufficient force is applied to it, the mould part will move laterally.
  • the fingers and inserts may not mate perfectly with one another and this will apply a force to the core part 12 to push it into alignment with the female mould part 10 .
  • the parts of the mould are brought into perfect alignment with one another in the conventional manner.
  • the locating sections 14 a and 14 b will interact with the surfaces of mating parallel-side locating sections 18 a and 18 b before the mould is fully closed, and will effect, in two different and axially separated planes, any minor relative displacement of the mould parts that is necessary to assure correct alignment of the mould parts both in terms of concentricity and parallel alignment before the mould is fully closed.
  • a further problem that has to be overcome in injection compression moulding is that of containing the plastics material within the cavity as its volume is being reduced.
  • this has been achieved by using a rim closure ring to close off the cavity in the female mould part and by the core passing through a cylindrical hole in the rim closure ring.
  • This is not a satisfactory solution because it is difficult to form a rim closure ring with a cylindrical bore that effectively seals around the core and yet allows the core to pass freely through it.
  • the clearance required to permit reliable and free movement of the core relative to the rim closure ring does not permit creation of a perfect seal and results in an unacceptable witness line around the rim of the moulded article.
  • a sealing ring 20 surrounds the core 16 .
  • the sealing ring is held captive on the core part 12 and is capable of only a small degree of movement relative to the core part in the direction of the axis of movement of the core part.
  • Strong springs (or gas pressure) capable of withstanding the pressure within the mould act to hold the sealing ring 20 against the top surface of the female mould part 10 so that no plastics material can escape laterally from the top of the mould cavity.
  • a sealing surface between the sealing ring 20 and the core 16 is not cylindrical, as in the prior art, but is formed of two contiguous tapering sections 22 and 24 of which the tapering section 24 has a very small angle of taper, less than 5° and preferably of the order of 1°, and the tapering section 22 has a larger angle of taper.
  • sealing contact between the sealing ring 20 and the core 16 does not occur before the mould cavity is fully closed.
  • the core 16 is first fully advanced into the cavity in the female mould part 10 to exclude most of the air from the cavity. Next, an accurately measured quantity of plastics material is injected into the mould cavity to form a biscuit at the base of the mould cavity. During this time, the core 16 recoils slightly from the female mould part 10 either by the action of the injection pressure or by movement of the core cavity.
  • the sealing ring may or may not come into contact with the front of the female mould part 10 before the recoiling movement commences, depending on the maximum stroke of the ring and the thickness of the biscuit that is injected into the mould. If the sealing ring does contact the front of the female mould part 10 , then, depending on the stroke of the ring relative to the core and the amplitude of the recoiling movement, it may remain in sealing contact with the female mould part during the whole, or only the initial, part of the recoiling movement.
  • the core 16 is maintained in alignment with the female mould part by the action of the guide finger 14 .
  • the axial movement of the core 16 relative to the sealing ring 20 opens a gap between the two because of the tapering surfaces of the sealing tapering sections 22 and 24 .
  • the width of the gap that is created is only wide enough to act as a vent to allow gas to escape from the cavity.
  • the biscuit of plastics material is compressed and is forced to flow up the side walls of the cavity towards the rim of the container. During this time, gas is expelled from the mould cavity first through the gap between the sealing ring and the cavity then through the gap between the sealing ring 20 and the core 16 . As the core 16 reaches its end position, the gap between it and the sealing ring 20 is closed fully so as to prevent any egress of the plastics material from the mould.
  • the plastics material flows at an even rate around the entire periphery of the cavity and reaches the end of the cavity at substantially the same time. This reduces the distance that the sealing ring 20 needs to move relative to the core 16 .
  • the sealing ring not only closes the mould cavity efficiently to avoid any flashing but it does so without rubbing against the core 16 .
  • the sealing ring provides a vent that decreases in cross sectional area as the core 16 reaches the closed position.
  • the female mould part 10 and the core part 12 have been illustrated in greater detail than is necessary for an understanding of the invention but the parts that have not been described in detail are generally conventional and their function will be understood by the person skilled in the art without the need to detailed explanation.
  • parts have been illustrated that are associated with such functions as the injection of the plastics material into the cavity, the cooling of the moulding, the ejection of the mould article from the mould and the mounting of the parts in the mould tool that is mounted to the platens of an injection moulding machine.
  • the material that is to be moulded is conventionally a molten thermoplastic material. It should however be clear to the person skilled in the art that the invention will also find application in moulding molten metals, resins and thermosetting materials. Indeed, the material can be any material that is initially sufficiently fluid to be capable of being injected and that will subsequently harden, be it by cooling, heating or chemical curing.
  • the purpose of the tapering surface of the sealing ring that seals against the core 16 is to maintain a gap between the core and the sealing ring until the mould is fully closed allowing free movement of the sealing ring relative to the core.
  • tapering surfaces provided on sealing rings for alignment purpose as exemplified by U.S. Pat. No. 6,500,376, where the surfaces meet and leave no gap between them before the mould cavity is fully closed.
  • sealing ring is not, of course, to be construed in the present context to be restricted to a circular ring, as its outline will in each case be dictated by the outline of the article to be moulded.
  • the angle of taper measured relative to the direction of movement of the core 16 is small, typically less than 5°, so that only a small gap is present between the core and the sealing ring during the last few millimeters of movement of the core.
  • the width of the small gap that remains as the core 16 approaches the closed position will not allow the injected material to penetrate into it but allows air to escape from the mould cavity.
  • venting gaps that are normally required when injection or injection compression moulding an article.
  • the ability to dispense with venting gaps has many important advantages. First, because gas has to escape through a vent that is too small to allow the injected material to flow through it, it is heated to a high temperature with the result that the venting gaps require extensive maintenance and can reach a sufficiently high temperature to scorch the plastics material. Second, the back pressure resulting from pumping air through the venting gaps reduces the speed of movement of the injected material and the filling speed of the mould.
  • the sealing ring is preferably mounted on the core by a connection that allows it a limited degree of movement relative to the core, and the sealing ring is urged by at least one of a spring and gas pressure in a direction to increase a size of the venting gap between tapering surfaces.
  • the mould as described needs to be mounted in a moulding machine that moves the core part 12 and the female mould part 10 relative to one another at the appropriate rate while applying appropriate pressures. It has been found that the pressure/distance profile of a toggle operated moulding machine is ideally suited to the injection compression moulding process but other machines can be programmed to achieve a similar pressure/distance profile. When a machine is not capable of changing smoothly from a low pressure large displacement mode to a high pressure small displacement mode, a further possibility would be to include a module between the mould and the machine platens that is capable of delivering the desired distance/pressure profile.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
US11/457,597 2004-01-16 2006-07-14 Injection compression moulding Abandoned US20060286916A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB0400936.1 2004-01-16
GB0400936A GB2410001A (en) 2004-01-16 2004-01-16 Injection compression moulding
PCT/GB2004/005422 WO2005068157A2 (fr) 2004-01-16 2004-12-30 Moulage par injection par compression
WOPCT/GB04/05422 2004-12-30

Publications (1)

Publication Number Publication Date
US20060286916A1 true US20060286916A1 (en) 2006-12-21

Family

ID=31726270

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/457,597 Abandoned US20060286916A1 (en) 2004-01-16 2006-07-14 Injection compression moulding

Country Status (8)

Country Link
US (1) US20060286916A1 (fr)
EP (1) EP1704036A2 (fr)
JP (1) JP2007517690A (fr)
CN (1) CN1906010B (fr)
CA (1) CA2552893A1 (fr)
GB (1) GB2410001A (fr)
MX (1) MXPA06008099A (fr)
WO (1) WO2005068157A2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2653286A2 (fr) 2012-04-18 2013-10-23 Rouxel S.A. Moule par injection-compression et son utilisation
US11117299B2 (en) 2015-09-25 2021-09-14 Sabic Global Technologies B.V. Method of molding using mold inserts and apparatus therefor
CN115139462A (zh) * 2022-05-26 2022-10-04 东风柳州汽车有限公司 反应注射成型模具及反应注射成型产品的制备方法

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2430643A (en) * 2005-10-03 2007-04-04 Im Pak Technologies Ltd Injection impact compression moulding
GB0523336D0 (en) 2005-11-16 2005-12-28 Reckitt Benckiser Uk Ltd Injection moulding
US8821144B2 (en) * 2011-05-20 2014-09-02 Progressive Components International Corporation Alignment interlock for molds and dies
DE112012004897T5 (de) * 2011-11-24 2014-09-11 Suzuki Motor Corporation Formwerkzeug und Formverfahren
CN108162320A (zh) * 2017-12-25 2018-06-15 中山市榄商置业发展有限公司 一种用于控制注射压缩模制的器具和方法
CN112693072B (zh) * 2020-11-17 2023-02-10 宝利根(成都)精密工业有限公司 一种具有重复定位补偿结构的双色模具
CN112677415B (zh) * 2020-12-10 2022-09-02 鸿宝科技(江门)有限公司 一种注塑件压紧装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5217732A (en) * 1991-05-17 1993-06-08 Landis Plastics, Inc. Flash suppressing mold apparatus
US6500376B1 (en) * 2000-01-27 2002-12-31 Visteon Global Technologies, Inc. Multiple injection compression molding process
US20030099794A1 (en) * 2001-11-26 2003-05-29 Tsuyoshi Sasaki Molding method of a resin molded article by a mold apparatus, the mold apparatus, the resin molded article, and a molding machine having the mold apparatus
US20030146533A1 (en) * 2000-05-10 2003-08-07 Brian Gornell Expanded plastics containers
US20040071815A1 (en) * 2002-10-11 2004-04-15 Tung-Jung Chen Mold article ejecting device used for an injection molding apparatus
US20060018991A1 (en) * 2002-11-05 2006-01-26 Hoogland Hendricus A Mold and method for the manufacture of holders such as tub-shaped containers

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1182130A (en) * 1967-08-04 1970-02-25 Rolinx Ltd Injection Moulding
CN2084871U (zh) * 1991-03-15 1991-09-18 陈显达 互换性组合式塑胶注射模具结构
JP2751757B2 (ja) * 1992-09-29 1998-05-18 豊田合成株式会社 射出圧縮成形金型
JPH06126740A (ja) * 1992-10-20 1994-05-10 Mitsubishi Plastics Ind Ltd 合成樹脂製ボトル用パリソンの射出成形方法
JPH10249894A (ja) * 1997-03-13 1998-09-22 Meiki Co Ltd ディスク基板成形用金型
GB2328395B (en) * 1998-07-15 2000-02-02 Kurt Mueller Injection-compression moulding method
JP2000167879A (ja) * 1998-12-09 2000-06-20 Sumitomo Heavy Ind Ltd 射出成形用金型
JP4266275B2 (ja) * 2000-08-24 2009-05-20 本田技研工業株式会社 射出圧縮成形型
AU2002228164B2 (en) * 2001-01-26 2006-04-27 Im-Pak Technologies Limited Mould and method for injection-compression moulding
JP4201580B2 (ja) * 2001-11-26 2008-12-24 住友重機械工業株式会社 樹脂成形方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5217732A (en) * 1991-05-17 1993-06-08 Landis Plastics, Inc. Flash suppressing mold apparatus
US6500376B1 (en) * 2000-01-27 2002-12-31 Visteon Global Technologies, Inc. Multiple injection compression molding process
US20030146533A1 (en) * 2000-05-10 2003-08-07 Brian Gornell Expanded plastics containers
US20030099794A1 (en) * 2001-11-26 2003-05-29 Tsuyoshi Sasaki Molding method of a resin molded article by a mold apparatus, the mold apparatus, the resin molded article, and a molding machine having the mold apparatus
US20040071815A1 (en) * 2002-10-11 2004-04-15 Tung-Jung Chen Mold article ejecting device used for an injection molding apparatus
US20060018991A1 (en) * 2002-11-05 2006-01-26 Hoogland Hendricus A Mold and method for the manufacture of holders such as tub-shaped containers

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2653286A2 (fr) 2012-04-18 2013-10-23 Rouxel S.A. Moule par injection-compression et son utilisation
EP2653286A3 (fr) * 2012-04-18 2018-02-07 Rouxel S.A. Moule par injection-compression et son utilisation
US11117299B2 (en) 2015-09-25 2021-09-14 Sabic Global Technologies B.V. Method of molding using mold inserts and apparatus therefor
CN115139462A (zh) * 2022-05-26 2022-10-04 东风柳州汽车有限公司 反应注射成型模具及反应注射成型产品的制备方法

Also Published As

Publication number Publication date
WO2005068157A3 (fr) 2005-10-27
CN1906010A (zh) 2007-01-31
CA2552893A1 (fr) 2005-07-28
MXPA06008099A (es) 2007-01-26
JP2007517690A (ja) 2007-07-05
WO2005068157A2 (fr) 2005-07-28
GB2410001A (en) 2005-07-20
CN1906010B (zh) 2010-06-09
EP1704036A2 (fr) 2006-09-27
GB0400936D0 (en) 2004-02-18

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