WO1998036892A1 - Verfahren zur herstellung von kunststoff-bauteilen - Google Patents
Verfahren zur herstellung von kunststoff-bauteilen Download PDFInfo
- Publication number
- WO1998036892A1 WO1998036892A1 PCT/DE1998/000016 DE9800016W WO9836892A1 WO 1998036892 A1 WO1998036892 A1 WO 1998036892A1 DE 9800016 W DE9800016 W DE 9800016W WO 9836892 A1 WO9836892 A1 WO 9836892A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- component
- blow molding
- decorative element
- composite
- decorative
- Prior art date
Links
- 239000004033 plastic Substances 0.000 title claims abstract description 14
- 229920003023 plastic Polymers 0.000 title claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 6
- 239000000463 material Substances 0.000 claims abstract description 27
- 239000002131 composite material Substances 0.000 claims abstract description 25
- 238000000071 blow moulding Methods 0.000 claims abstract description 22
- 239000006260 foam Substances 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 19
- 239000003000 extruded plastic Substances 0.000 claims abstract description 4
- 239000004743 Polypropylene Substances 0.000 claims description 16
- -1 polypropylene Polymers 0.000 claims description 15
- 229920001155 polypropylene Polymers 0.000 claims description 15
- 239000004753 textile Substances 0.000 claims description 5
- 229920002397 thermoplastic olefin Polymers 0.000 claims description 4
- 239000010985 leather Substances 0.000 claims description 3
- 239000002649 leather substitute Substances 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims 1
- 239000012815 thermoplastic material Substances 0.000 claims 1
- 230000004927 fusion Effects 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 238000003466 welding Methods 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000005034 decoration Methods 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 230000004913 activation Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 229920006379 extruded polypropylene Polymers 0.000 description 1
- 238000010101 extrusion blow moulding Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/24—Lining or labelling
-
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/24—Lining or labelling
- B29C2049/2412—Lining or labelling outside the article
-
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/24—Lining or labelling
- B29C2049/2414—Linings or labels, e.g. specific geometry, multi-layered or material
- B29C2049/24302—Label materials
- B29C2049/24306—Label materials using different material for the label and the preform
-
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/04—Extrusion blow-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
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/08—Deep drawing or matched-mould forming, i.e. using mechanical means only
- B29C51/082—Deep drawing or matched-mould forming, i.e. using mechanical means only by shaping between complementary mould parts
-
- 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
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/10—Polymers of propylene
- B29K2023/12—PP, i.e. polypropylene
-
- 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
- B29K2711/00—Use of natural products or their composites, not provided for in groups B29K2601/00 - B29K2709/00, for preformed parts, e.g. for inserts
- B29K2711/08—Leather
-
- 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
- B29L2009/00—Layered products
-
- 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
- B29L2031/744—Labels, badges, e.g. marker sleeves
Definitions
- the invention relates to a method for producing plastic components, which are formed by blow molding and are preferably coated on partial surfaces with a decorative material.
- Components made of plastic in the blow molding process are coated with a decorative material to achieve an optically and haptically pleasing surface, which is used to improve the feel, e.g. B. is additionally backed with a foam layer by a soft, resilient surface.
- the components are usually produced from an extruded plastic tube using the extrusion blow molding process.
- Components formed in this way are known to have high rigidity, and various functional elements, such as air ducts, mechanical guides, fasteners, storage compartments and the like are formed.
- the application of the decorative material takes place in a second process step by gluing, which is, however, expensive in that, when using polypropylene, an activation of the surface of the component is necessary to ensure the adhesive properties and the application of the glue in certain sub-areas also presents difficulties, since this is difficult Use of templates is necessary or the border or Edge areas of the component must be taped.
- the invention is therefore based on the object
- the object is achieved in that the decorative material is first pressed and the composite decorative element thus produced is introduced into a blow molding tool and is pressed and fused to the outer surface of the component during blow molding.
- plastic components with foam-backed decorative areas can be manufactured quickly and with little effort and in high quality.
- the prefabricated composite decorative element can already be preformed according to the contour of the component in question.
- the composite decorative element is pressed flat and, during blow molding, deformed together with the component to be formed and thereby connected to its outer surface, but if necessary previously heated.
- the shaping in the blow molding tool or the preformed composite decorative element is preferably carried out in such a way that when the component is blow molded, an ornamental groove is formed in the area corresponding to the peripheral edge of the composite decorative element, in which the bent edge of the composite Decorative element is sunk.
- the plastic component together with the foam-backed decorative coating is formed from a single-material system made of polypropylene, the composite decorative element consisting of polypropylene textile as a decorative material and of extruded and / or expanded polypropylene as a foam backing.
- the composite decorative element consisting of polypropylene textile as a decorative material and of extruded and / or expanded polypropylene as a foam backing.
- thermoplastic polyolefin and the like or synthetic leather, leather and similar material can also be used as the decorative material.
- partially coated components can therefore be produced which are high Meet the requirements for the aesthetic design, feel and durability of the coating as well as for simple recycling and can also be produced with little effort.
- Fig. 2 shows a double-walled component according to FIG. 1, but with a second foam layer between the outer surface of the blow molded part (component) and the decorative material.
- a partial surface of a double-walled component 1 made of plastic is coated with a decorative material 3, which is backed with a foam layer 2. While the decorative material 3 is arranged from a purely design point of view, the foam layer 2 serves to improve the feel in the area of the coated partial area.
- a decorative groove 5 is formed in the component 1 (blow molded part) in the region of the edge of the decorative material 1, into which the bent edge of the decorative material 3, including the foam backing (Foam layer), which together form a composite decorative element 6, is included.
- component 1 consists of polypropylene, while the decorative material 3 is polypropylene textile and extruded polypropylene foam (X-PP) is used for the foam layer.
- X-PP polypropylene foam
- the feel of the coated partial surface of the component 1 is further improved by the arrangement of two foam layers 2 and 4.
- the second foam layer 4 consists of expanded polypropylene (E-PP).
- Components in the above-described design variants are produced by first heating an extruded and / or an expanded polypropylene foam on the surface to a temperature in the melting range of this material and on the melted surface with the decorative material made of polypropylene textile into one Composite decoration 6 is pressed and welded and preformed according to the end contour of component 1. When pressed, the melted polypropylene foam penetrates the surface of the decorative material and forms a firm connection with it. The preformed composite decorative element made of foam and decorative material is then introduced into a blow molding tool and in this by means of fixing pins or one on the inner wall of the Form in the region of the composite decorative element 6 generated negative pressure.
- the invention is not restricted to the exemplary embodiment described above.
- other combinations of materials are possible for the foam layer 2, and thermoplastic polyolefin films (TPO) and other plastics, but also leather, synthetic leather, etc., can also be used as decorative material. be used.
- TPO thermoplastic polyolefin films
- leather, synthetic leather, etc. can also be used as decorative material. be used.
- the composite decorative element 6 can also be designed as a flat element, not a preformed element.
- the possibly pre-heated flat composite decorative element is fixed in the blow mold and, during the blow molding process, is deformed together with the freshly extruded plastic tube by the excess pressure and fused to the free surface of the foam layer 2 with the outside of the component 1.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE59801688T DE59801688D1 (de) | 1997-02-21 | 1998-01-07 | Verfahren zur herstellung von kunststoff-bauteilen |
AU62044/98A AU6204498A (en) | 1997-02-21 | 1998-01-07 | Method for producing plastic components |
EP98903996A EP0961679B1 (de) | 1997-02-21 | 1998-01-07 | Verfahren zur herstellung von kunststoff-bauteilen |
US09/379,217 US6471908B1 (en) | 1997-02-21 | 1999-08-23 | Method for the fabrication of synthetic-material component assemblies |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19706849A DE19706849A1 (de) | 1997-02-21 | 1997-02-21 | Verfahren zur Herstellung von Kunststoff-Bauteilen |
DE19706849.9 | 1997-02-21 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/379,217 Continuation US6471908B1 (en) | 1997-02-21 | 1999-08-23 | Method for the fabrication of synthetic-material component assemblies |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998036892A1 true WO1998036892A1 (de) | 1998-08-27 |
Family
ID=7821014
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1998/000016 WO1998036892A1 (de) | 1997-02-21 | 1998-01-07 | Verfahren zur herstellung von kunststoff-bauteilen |
Country Status (5)
Country | Link |
---|---|
US (1) | US6471908B1 (de) |
EP (1) | EP0961679B1 (de) |
AU (1) | AU6204498A (de) |
DE (2) | DE19706849A1 (de) |
WO (1) | WO1998036892A1 (de) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19844632A1 (de) * | 1998-09-28 | 2000-04-06 | Moeller Plast Gmbh | Verfahren zur Herstellung von Bauteilen mit Oberflächendekor |
DE19860199C2 (de) * | 1998-12-24 | 2001-02-08 | Moeller Plast Gmbh | Verfahren und Blasformwerkzeug zur Herstellung von mit einem Dekormaterial beschichteten Bauteilen |
DE19911815A1 (de) * | 1999-03-17 | 2000-09-21 | Bayerische Motoren Werke Ag | Verfahren zur Herstellung einer Lederverkleidung für ein Ausstattungsteil |
DE19933528B4 (de) * | 1999-07-16 | 2008-12-11 | Bayerische Motoren Werke Aktiengesellschaft | Verfahren zum Aufbringen einer Sperrschicht auf die Rückseite eines Dekorbezuges |
US20070216070A1 (en) * | 2006-03-15 | 2007-09-20 | Visteon Global Technologies, Inc. | Method of forming multi-component instrument panel skin using negative vacuum forming |
FR2934195B1 (fr) * | 2008-07-24 | 2011-04-01 | Faurecia Sieges Automobile | Formage de garnitures pour sieges de vehicule automobile |
CN201312452Y (zh) | 2008-10-31 | 2009-09-16 | 比亚迪股份有限公司 | 一种电子产品外壳及其电子产品 |
FR3009224B1 (fr) | 2013-08-02 | 2016-01-01 | Faurecia Sieges Automobile | Procede de formage de garniture pour siege automobile |
FR3009222B1 (fr) | 2013-08-02 | 2016-01-01 | Faurecia Sieges Automobile | Formage d'une garniture pour siege automobile |
US9120399B2 (en) | 2013-11-27 | 2015-09-01 | International Automotive Components Group North America, Inc. | Manufacture of an article having an edge wrapped decorative covering overlying a substrate |
FR3035038B1 (fr) | 2015-04-16 | 2017-05-12 | Faurecia Sieges D'automobile | Alignement de pieces de coiffe pour sieges de vehicules automobiles |
Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6135930A (ja) * | 1984-07-30 | 1986-02-20 | Inoue Mtp Co Ltd | 表面の少なくとも一部がフアブリツク材で覆われてなる袋体の製造方法 |
JPS61144328A (ja) * | 1984-12-18 | 1986-07-02 | Toyoda Gosei Co Ltd | 表皮を有するブロ−成形品及びその製造方法 |
JPS61246036A (ja) * | 1985-04-24 | 1986-11-01 | Kyoraku Co Ltd | プラスチツク中空体の製造方法 |
JPS62128730A (ja) * | 1985-11-29 | 1987-06-11 | Mitsubishi Motors Corp | 中空成形品の成形方法 |
JPS62251122A (ja) * | 1986-04-24 | 1987-10-31 | Teraoka Seisakusho:Kk | 成形品の貼着布材料を巻締めするブロ−成形方法およびその装置 |
WO1988008361A1 (en) * | 1987-04-28 | 1988-11-03 | Plastipak Packaging, Inc. | Blow molded polyethylene terephthalate container having iml textured label wall and method for making same |
JPH0195027A (ja) * | 1987-10-07 | 1989-04-13 | Kojima Press Co Ltd | 表皮材付き樹脂成形品の成形方法 |
JPH02178018A (ja) * | 1988-12-28 | 1990-07-11 | Toppan Printing Co Ltd | ラベル付容器の製造方法 |
JPH02179721A (ja) * | 1988-12-29 | 1990-07-12 | Daikyo Inc | 閉断面バンパーの製造方法 |
JPH0369335A (ja) * | 1989-08-09 | 1991-03-25 | Yamahisa:Kk | 中空体と織布を一体成形する方法 |
US5271882A (en) * | 1990-11-09 | 1993-12-21 | Tokai Kogyo Kabushiki Kaisha | Blow molding process with sheet interposed between mold and product being molded |
EP0595158A1 (de) * | 1992-10-28 | 1994-05-04 | Krupp Kautex Maschinenbau GmbH | Verfahren und Vorrichtung zum Herstellen von Hohlkörpern aus thermoplastischem Kunststoff |
US5344305A (en) * | 1993-02-01 | 1994-09-06 | Ccl Label, Inc. | Apparatus for in-mold labelling |
DE4342729A1 (de) * | 1993-12-15 | 1995-06-22 | Moeller Werke Gmbh | Verfahren zum Herstellen von Kunststofformteilen mit Kaschierung aus Dekormaterial |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3740687A1 (de) * | 1987-03-02 | 1988-09-15 | Daimler Benz Ag | Als blasformkoerper ausgebildeter stuetzkoerper |
US5169470A (en) * | 1989-09-22 | 1992-12-08 | Westvaco Corporation | Method of extrusion blow molding into paperboard inserts to form a composite package |
JPH04147823A (ja) * | 1990-10-11 | 1992-05-21 | Tokai Kogyo Kk | 車両用モールディングとその製造方法 |
US5297842A (en) * | 1992-02-28 | 1994-03-29 | Ikeda Bussan Co., Ltd. | Lining for interior of structural body and method of producing same |
EP0791450A1 (de) * | 1996-02-23 | 1997-08-27 | Lear Corporation | Verfahren und Vorrichtung zum Verbinden eines Teppichs mit Kunststoff |
-
1997
- 1997-02-21 DE DE19706849A patent/DE19706849A1/de not_active Withdrawn
-
1998
- 1998-01-07 AU AU62044/98A patent/AU6204498A/en not_active Abandoned
- 1998-01-07 WO PCT/DE1998/000016 patent/WO1998036892A1/de active IP Right Grant
- 1998-01-07 EP EP98903996A patent/EP0961679B1/de not_active Expired - Lifetime
- 1998-01-07 DE DE59801688T patent/DE59801688D1/de not_active Expired - Lifetime
-
1999
- 1999-08-23 US US09/379,217 patent/US6471908B1/en not_active Expired - Fee Related
Patent Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6135930A (ja) * | 1984-07-30 | 1986-02-20 | Inoue Mtp Co Ltd | 表面の少なくとも一部がフアブリツク材で覆われてなる袋体の製造方法 |
JPS61144328A (ja) * | 1984-12-18 | 1986-07-02 | Toyoda Gosei Co Ltd | 表皮を有するブロ−成形品及びその製造方法 |
JPS61246036A (ja) * | 1985-04-24 | 1986-11-01 | Kyoraku Co Ltd | プラスチツク中空体の製造方法 |
JPS62128730A (ja) * | 1985-11-29 | 1987-06-11 | Mitsubishi Motors Corp | 中空成形品の成形方法 |
JPS62251122A (ja) * | 1986-04-24 | 1987-10-31 | Teraoka Seisakusho:Kk | 成形品の貼着布材料を巻締めするブロ−成形方法およびその装置 |
WO1988008361A1 (en) * | 1987-04-28 | 1988-11-03 | Plastipak Packaging, Inc. | Blow molded polyethylene terephthalate container having iml textured label wall and method for making same |
JPH0195027A (ja) * | 1987-10-07 | 1989-04-13 | Kojima Press Co Ltd | 表皮材付き樹脂成形品の成形方法 |
JPH02178018A (ja) * | 1988-12-28 | 1990-07-11 | Toppan Printing Co Ltd | ラベル付容器の製造方法 |
JPH02179721A (ja) * | 1988-12-29 | 1990-07-12 | Daikyo Inc | 閉断面バンパーの製造方法 |
JPH0369335A (ja) * | 1989-08-09 | 1991-03-25 | Yamahisa:Kk | 中空体と織布を一体成形する方法 |
US5271882A (en) * | 1990-11-09 | 1993-12-21 | Tokai Kogyo Kabushiki Kaisha | Blow molding process with sheet interposed between mold and product being molded |
EP0595158A1 (de) * | 1992-10-28 | 1994-05-04 | Krupp Kautex Maschinenbau GmbH | Verfahren und Vorrichtung zum Herstellen von Hohlkörpern aus thermoplastischem Kunststoff |
US5344305A (en) * | 1993-02-01 | 1994-09-06 | Ccl Label, Inc. | Apparatus for in-mold labelling |
DE4342729A1 (de) * | 1993-12-15 | 1995-06-22 | Moeller Werke Gmbh | Verfahren zum Herstellen von Kunststofformteilen mit Kaschierung aus Dekormaterial |
Non-Patent Citations (9)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 010, no. 191 (M - 495) 4 July 1986 (1986-07-04) * |
PATENT ABSTRACTS OF JAPAN vol. 010, no. 342 (M - 536) 19 November 1986 (1986-11-19) * |
PATENT ABSTRACTS OF JAPAN vol. 011, no. 094 (M - 574) 25 March 1987 (1987-03-25) * |
PATENT ABSTRACTS OF JAPAN vol. 011, no. 348 (M - 642) 14 November 1987 (1987-11-14) * |
PATENT ABSTRACTS OF JAPAN vol. 012, no. 126 (M - 687) 19 April 1988 (1988-04-19) * |
PATENT ABSTRACTS OF JAPAN vol. 013, no. 305 (M - 849) 13 July 1989 (1989-07-13) * |
PATENT ABSTRACTS OF JAPAN vol. 014, no. 447 (M - 1029) 25 September 1990 (1990-09-25) * |
PATENT ABSTRACTS OF JAPAN vol. 014, no. 450 (M - 1030) 27 September 1990 (1990-09-27) * |
PATENT ABSTRACTS OF JAPAN vol. 015, no. 228 (M - 1123) 11 June 1991 (1991-06-11) * |
Also Published As
Publication number | Publication date |
---|---|
DE59801688D1 (de) | 2001-11-15 |
US6471908B1 (en) | 2002-10-29 |
DE19706849A1 (de) | 1998-08-27 |
EP0961679B1 (de) | 2001-10-10 |
EP0961679A1 (de) | 1999-12-08 |
AU6204498A (en) | 1998-09-09 |
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