DE3117280A1 - Gegenstaende aus thermoplastischen polymeren, welche mit glasfasern verstaerkt sind - Google Patents

Gegenstaende aus thermoplastischen polymeren, welche mit glasfasern verstaerkt sind

Info

Publication number
DE3117280A1
DE3117280A1 DE19813117280 DE3117280A DE3117280A1 DE 3117280 A1 DE3117280 A1 DE 3117280A1 DE 19813117280 DE19813117280 DE 19813117280 DE 3117280 A DE3117280 A DE 3117280A DE 3117280 A1 DE3117280 A1 DE 3117280A1
Authority
DE
Germany
Prior art keywords
glass fibers
fibrils
plate
olefin polymer
polymer
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
Application number
DE19813117280
Other languages
German (de)
English (en)
Inventor
Antonio Dr. Chiolle
Lino Casalecchio Di Reno Bologna Credali
Sergio Ferrara Danesi
Giovanni Di Drusco
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.)
Montedison SpA
Original Assignee
Montedison SpA
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 Montedison SpA filed Critical Montedison SpA
Publication of DE3117280A1 publication Critical patent/DE3117280A1/de
Ceased legal-status Critical Current

Links

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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
    • B29C70/46—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
    • 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
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B29C41/16—Slip casting, i.e. applying a slip or slurry on a perforated or porous or absorbent surface with the liquid being drained away
    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/06—Fibrous reinforcements only
    • B29C70/08—Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, and with or without non-reinforced layers
    • B29C70/086—Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, and with or without non-reinforced layers and with one or more layers of pure plastics material, e.g. foam layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
    • D21H13/10—Organic non-cellulose fibres
    • D21H13/12—Organic non-cellulose fibres from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H13/14—Polyalkenes, e.g. polystyrene polyethylene
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
    • D21H13/36—Inorganic fibres or flakes
    • D21H13/38—Inorganic fibres or flakes siliceous
    • D21H13/40—Inorganic fibres or flakes siliceous vitreous, e.g. mineral wool, glass fibres
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/30—Multi-ply
    • D21H27/32—Multi-ply with materials applied between the sheets
    • D21H27/34—Continuous materials, e.g. filaments, sheets, nets
    • D21H27/36—Films made from synthetic macromolecular compounds
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H5/00—Special paper or cardboard not otherwise provided for
    • D21H5/12—Special paper or cardboard not otherwise provided for characterised by the use of special fibrous materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B15/00—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00
    • B29B15/08—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00 of reinforcements or fillers
    • B29B15/10—Coating or impregnating independently of the moulding or shaping step
    • B29B15/12—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/03—3 layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/101—Glass fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/08—Reinforcements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24132—Structurally defined web or sheet [e.g., overall dimension, etc.] including grain, strips, or filamentary elements in different layers or components parallel
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249924—Noninterengaged fiber-containing paper-free web or sheet which is not of specified porosity
    • Y10T428/24994—Fiber embedded in or on the surface of a polymeric matrix
    • Y10T428/249942—Fibers are aligned substantially parallel
    • Y10T428/249946—Glass fiber
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
    • Y10T428/269—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension including synthetic resin or polymer layer or component
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31855—Of addition polymer from unsaturated monomers
    • Y10T428/31909—Next to second addition polymer from unsaturated monomers
    • Y10T428/31913—Monoolefin polymer

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Composite Materials (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Laminated Bodies (AREA)
  • Reinforced Plastic Materials (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Moulding By Coating Moulds (AREA)
  • Nonwoven Fabrics (AREA)
DE19813117280 1980-05-06 1981-04-30 Gegenstaende aus thermoplastischen polymeren, welche mit glasfasern verstaerkt sind Ceased DE3117280A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT21818/80A IT1193532B (it) 1980-05-06 1980-05-06 Manufatti di polimeri termoplastici rinforzati con fibre di vetro

Publications (1)

Publication Number Publication Date
DE3117280A1 true DE3117280A1 (de) 1982-06-16

Family

ID=11187285

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19813117280 Ceased DE3117280A1 (de) 1980-05-06 1981-04-30 Gegenstaende aus thermoplastischen polymeren, welche mit glasfasern verstaerkt sind

Country Status (20)

Country Link
US (1) US4431696A (enExample)
JP (1) JPS574731A (enExample)
AR (1) AR224573A1 (enExample)
AT (1) AT384993B (enExample)
AU (1) AU547867B2 (enExample)
BE (1) BE888682A (enExample)
BR (1) BR8102744A (enExample)
CA (1) CA1157605A (enExample)
CH (1) CH658462A5 (enExample)
DE (1) DE3117280A1 (enExample)
ES (1) ES8304596A1 (enExample)
FR (1) FR2481994A1 (enExample)
GB (1) GB2075077B (enExample)
IL (1) IL62761A (enExample)
IT (1) IT1193532B (enExample)
LU (1) LU83332A1 (enExample)
MX (1) MX158505A (enExample)
NL (1) NL8102126A (enExample)
SE (1) SE453272B (enExample)
ZA (1) ZA812920B (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4404127A1 (de) * 1993-06-28 1995-03-02 Nissan Motor Polymer-Platte mit einer Abdichtungsmembran zur Herstellung von elektrischen und mechanischen Verbindungen durch die Platte hindurch und Verfahren zu ihrer Herstellung

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5824533B2 (ja) * 1974-12-21 1983-05-21 株式会社豊田自動織機製作所 オ−プンエンドセイボウキニ オケル ワキシングソウチ
DE3273349D1 (en) * 1981-07-27 1986-10-23 Dow Chemical Co Aqueous method of making reinforced composite material from latex, solid polymer and reinforcing material
EP0329200A3 (en) * 1984-01-06 1992-05-20 The Wiggins Teape Group Limited Moulded fibre reinforced plastics articles
US4596736A (en) * 1984-06-04 1986-06-24 The Dow Chemical Company Fiber-reinforced resinous sheet
US4654100A (en) * 1985-03-04 1987-03-31 The Dow Chemical Company Method for preparing random-fiber thermoset composites
GB8507312D0 (en) * 1985-03-21 1985-05-01 Ici Plc Producing shaped articles
DE3687008T2 (de) * 1985-03-21 1993-05-13 Ici Plc Verfahren zur herstellung geformter gegenstaende aus verstaerkten verbundmaterialien.
US4765915A (en) * 1985-05-23 1988-08-23 The Dow Chemical Company Porous filter media and membrane support means
US4921658A (en) * 1985-06-03 1990-05-01 The Dow Chemical Company Method for preparing reinforced thermoset articles
IT1188405B (it) * 1986-03-03 1988-01-14 Montedison Spa Procedimento per la produzione in continuo di compositi termoplastici termoformabili
US4775580A (en) * 1986-03-08 1988-10-04 The Dow Chemical Company Porous random fiber composites and a method for preparing same
GB8707404D0 (en) * 1987-03-27 1987-04-29 Shell Int Research Reinforced polymer sheet
KR900005075B1 (ko) * 1987-06-29 1990-07-19 맨빌 코오퍼레이션 열성형 가능한 섬유질 매트 및 그의 제조방법
JPH01318045A (ja) * 1988-05-10 1989-12-22 E I Du Pont De Nemours & Co ガラス繊維と熱可塑性繊維との湿式成形混合物よりの複合材料
WO1991008094A1 (en) * 1989-11-30 1991-06-13 Elmer Charles Marffy Machine for impregnating fibrous reinforcing with binder
NL9000235A (nl) * 1990-01-31 1991-08-16 Stamicarbon Kunststofgranulaat bevattend niet-gedispergeerde versterkende vezelbundels.
FR2834927B1 (fr) * 2002-01-18 2004-05-14 Chomarat Composites Nouvelle mousse renforcee par un reseau de renforcement

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1778781B2 (de) * 1967-06-02 1972-11-02 Imperial Chemical Industries Ltd., London Verfahren zur Herstellung von verstärkten thermoplastischen Gegenständen
GB1352376A (en) * 1970-02-20 1974-05-08 Pechiney Saint Gobain Reinforced thermoplastic materials

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4939505B1 (enExample) * 1965-09-09 1974-10-25
US3700538A (en) * 1970-09-10 1972-10-24 Nasa Polyimide resin-fiberglass cloth laminates for printed circuit boards
US3691000A (en) * 1971-03-10 1972-09-12 Celanese Corp Glass fiber reinforced composite article exhibiting enhanced longitudinal tensile and compressive moduli
GB1411379A (en) * 1971-12-21 1975-10-22 Rolls Royce Fibre reinforced composite structures
IT1039659B (it) * 1974-07-03 1979-12-10 Mitsui Petrochemical Ind Composizione e me todo per fabbricare articoli permebili ai gas
US4250221A (en) * 1976-04-29 1981-02-10 Consolidated Fiberglass Products Co. Fiberglass mat

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1778781B2 (de) * 1967-06-02 1972-11-02 Imperial Chemical Industries Ltd., London Verfahren zur Herstellung von verstärkten thermoplastischen Gegenständen
GB1352376A (en) * 1970-02-20 1974-05-08 Pechiney Saint Gobain Reinforced thermoplastic materials

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
BEYER, W.: Glasfaserverstärkte Kunststoffe, Folge 2, 1955, Carl Hanser Verlag, S. 73-74 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4404127A1 (de) * 1993-06-28 1995-03-02 Nissan Motor Polymer-Platte mit einer Abdichtungsmembran zur Herstellung von elektrischen und mechanischen Verbindungen durch die Platte hindurch und Verfahren zu ihrer Herstellung
DE4404127B4 (de) * 1993-06-28 2005-07-28 Nissan Motor Co., Ltd., Yokohama Plattenförmiges Erzeugnis mit Abdichtungsmembran

Also Published As

Publication number Publication date
FR2481994A1 (fr) 1981-11-13
LU83332A1 (fr) 1982-01-20
AT384993B (de) 1988-02-10
IL62761A (en) 1984-07-31
FR2481994B1 (enExample) 1985-04-19
BR8102744A (pt) 1982-01-26
AR224573A1 (es) 1981-12-15
CH658462A5 (it) 1986-11-14
AU7013581A (en) 1981-11-12
JPS574731A (en) 1982-01-11
CA1157605A (en) 1983-11-29
BE888682A (fr) 1981-11-05
AU547867B2 (en) 1985-11-07
ATA196681A (de) 1987-07-15
IL62761A0 (en) 1981-06-29
US4431696A (en) 1984-02-14
ES8304596A1 (es) 1983-03-16
JPS6354735B2 (enExample) 1988-10-31
NL8102126A (nl) 1981-12-01
IT8021818A0 (it) 1980-05-06
GB2075077B (en) 1984-07-11
MX158505A (es) 1989-02-09
ZA812920B (en) 1982-06-30
IT1193532B (it) 1988-07-08
GB2075077A (en) 1981-11-11
SE453272B (sv) 1988-01-25
SE8102729L (sv) 1981-11-07

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8125 Change of the main classification

Ipc: B29C 67/12

8131 Rejection