FR2453021A1 - PROCESS FOR MANUFACTURING PLATES OF SOFT CELLULAR PLASTIC MATERIAL - Google Patents

PROCESS FOR MANUFACTURING PLATES OF SOFT CELLULAR PLASTIC MATERIAL

Info

Publication number
FR2453021A1
FR2453021A1 FR8007760A FR8007760A FR2453021A1 FR 2453021 A1 FR2453021 A1 FR 2453021A1 FR 8007760 A FR8007760 A FR 8007760A FR 8007760 A FR8007760 A FR 8007760A FR 2453021 A1 FR2453021 A1 FR 2453021A1
Authority
FR
France
Prior art keywords
sheet
solution
plastic
cellular plastic
plastic material
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.)
Granted
Application number
FR8007760A
Other languages
French (fr)
Other versions
FR2453021B1 (en
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.)
Wako Kemikaru KK
Wako Chemical Co Ltd
Original Assignee
Wako Kemikaru KK
Wako Chemical Co Ltd
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 Wako Kemikaru KK, Wako Chemical Co Ltd filed Critical Wako Kemikaru KK
Publication of FR2453021A1 publication Critical patent/FR2453021A1/en
Application granted granted Critical
Publication of FR2453021B1 publication Critical patent/FR2453021B1/fr
Granted legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34Auxiliary operations
    • B29C44/56After-treatment of articles, e.g. for altering the shape
    • B29C44/5618Impregnating foam articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/06Fibrous reinforcements only
    • B29C70/08Fibrous 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28Shaping operations therefor
    • B29C70/40Shaping or impregnating by compression not applied
    • B29C70/42Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
    • B29C70/46Shaping 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
    • B29C70/467Shaping 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 and impregnating the reinforcements during mould closing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/68Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00Ancillary operations in connection with laminating processes
    • B32B38/0004Cutting, tearing or severing, e.g. bursting; Cutter details
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00Ancillary operations in connection with laminating processes
    • B32B38/08Impregnating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022Non-woven fabric
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/245Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it being a foam layer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/28Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer impregnated with or embedded in a plastic substance
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/36After-treatment
    • C08J9/40Impregnation
    • C08J9/42Impregnation with macromolecular compounds
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING 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
    • B29K2101/00Use of unspecified macromolecular compounds as moulding material
    • B29K2101/10Thermosetting resins
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING 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
    • B29K2105/00Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/04Condition, form or state of moulded material or of the material to be shaped cellular or porous
    • B29K2105/045Condition, form or state of moulded material or of the material to be shaped cellular or porous with open cells
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING 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
    • B29K2105/00Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/12Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles
    • B29K2105/128Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles in the form of a mat
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING 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
    • B29K2105/00Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/25Solid
    • B29K2105/253Preform
    • B29K2105/256Sheets, plates, blanks or films
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/10Building elements, e.g. bricks, blocks, tiles, panels, posts, beams
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00Composition of foam
    • B32B2266/02Organic
    • B32B2266/0214Materials belonging to B32B27/00
    • B32B2266/0278Polyurethane
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00Composition of foam
    • B32B2266/06Open cell foam
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2475/00Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Composite Materials (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Laminated Bodies (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Moulding By Coating Moulds (AREA)

Abstract

L'invention se rapporte à un procédé de fabrication de planches en matière plastique cellulaire molle. Selon l'invention, il comprend les étapes de plonger une feuille de matière plastique cellulaire molle à cellules ouvertes dans une solution 12 d'une résine thermodurcissable; de comprimer en 20, 22 la feuille pour en retirer une quantité sensible de la solution, le restant de la solution étant uniformément distribué dans toute la feuille; de sécher en 24 la feuille pour vaporiser le solvant dans la solution; de placer une feuille de renforcement sur la feuille en matière plastique; de presser thermiquement la feuille en matière plastique et la feuille de renforcement en une planche et de coller la feuille de renforcement à la feuille de matière plastique. L'invention s'applique notamment à la formation de plafonds d'isolement thermique et contre le bruit.The invention relates to a method of manufacturing planks of soft cellular plastic. According to the invention, it comprises the steps of immersing a sheet of soft cellular plastic material with open cells in a solution 12 of a thermosetting resin; compressing at 20, 22 the sheet to remove a substantial amount of the solution therefrom, the remainder of the solution being evenly distributed throughout the sheet; drying the sheet at 24 to vaporize the solvent into the solution; placing a reinforcing sheet on the plastic sheet; thermally pressing the plastic sheet and the backing sheet into a board and gluing the backing sheet to the plastic sheet. The invention applies in particular to the formation of thermal insulation ceilings and against noise.

FR8007760A 1979-04-05 1980-04-04 PROCESS FOR MANUFACTURING PLATES OF SOFT CELLULAR PLASTIC MATERIAL Granted FR2453021A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54041200A JPS5852495B2 (en) 1979-04-05 1979-04-05 Method for manufacturing small molded ceiling panels for automobiles, ships, houses, etc.

Publications (2)

Publication Number Publication Date
FR2453021A1 true FR2453021A1 (en) 1980-10-31
FR2453021B1 FR2453021B1 (en) 1984-04-13

Family

ID=12601770

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8007760A Granted FR2453021A1 (en) 1979-04-05 1980-04-04 PROCESS FOR MANUFACTURING PLATES OF SOFT CELLULAR PLASTIC MATERIAL

Country Status (4)

Country Link
JP (1) JPS5852495B2 (en)
DE (1) DE3012926A1 (en)
FR (1) FR2453021A1 (en)
GB (1) GB2045684B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2503721B1 (en) * 1981-04-14 1985-11-15 Nobel Bozel METHOD FOR MANUFACTURING LIGHTWEIGHT, INSULATING, FLEXIBLE, RIGID OR SEMI-RIGID ELEMENTS OF THE VARIABLE FORM AND THICKNESS TYPE OR PIECES AND ELEMENTS RESULTING FROM THE SAME
JPS57205125A (en) * 1981-06-12 1982-12-16 Nippon Tokushu Toryo Kk Manufacture of light weight sound insulating molded material
JPS597840U (en) * 1982-07-07 1984-01-19 井上エムテ−ピ−株式会社 Sound insulation damping material
JPS63139144U (en) * 1987-03-05 1988-09-13
GB2207855B (en) * 1987-08-08 1991-09-18 Austin Rover Group A method of cleaning a press tool and a cleaning means for use in such a method
BE1003036A6 (en) * 1989-03-23 1991-10-29 Recticel METHOD FOR MANUFACTURING A PLASTIC FOAM CONTAINING ELEMENT AND ELEMENT OBTAINED BY THIS METHOD
DE102011052513A1 (en) * 2011-08-09 2013-02-14 Rehau Ag + Co. Battery housing part for receiving a traction battery of an electric vehicle and method for producing the battery housing part
CN112654494B (en) * 2018-08-08 2022-12-23 法斯特建筑系统私人有限公司 Preform, composite structure and panel and method of forming same

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3269887A (en) * 1963-08-07 1966-08-30 Dow Chemical Co Settable, flexible, foamed resins
FR2096506A1 (en) * 1970-06-26 1972-02-18 Shell Int Research Thermosetting resin articles - by compressing and curing
GB1540076A (en) * 1976-05-03 1979-02-07 Ici Ltd Shaped articles

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3269887A (en) * 1963-08-07 1966-08-30 Dow Chemical Co Settable, flexible, foamed resins
FR2096506A1 (en) * 1970-06-26 1972-02-18 Shell Int Research Thermosetting resin articles - by compressing and curing
GB1540076A (en) * 1976-05-03 1979-02-07 Ici Ltd Shaped articles

Also Published As

Publication number Publication date
GB2045684B (en) 1983-03-16
FR2453021B1 (en) 1984-04-13
JPS5852495B2 (en) 1983-11-22
JPS55133931A (en) 1980-10-18
GB2045684A (en) 1980-11-05
DE3012926A1 (en) 1980-10-23

Similar Documents

Publication Publication Date Title
FI893085A (en) A process for producing a compression-shaped article of synthetic resin, optionally in the form of a plate, and a precursor to be used in the process
KR900011604A (en) Composites Including Inorganic Phases and Methods of Delivering Such Phases
FR2453021A1 (en) PROCESS FOR MANUFACTURING PLATES OF SOFT CELLULAR PLASTIC MATERIAL
SE7603314L (en) PROCEDURE FOR MANUFACTURING A BITUMINOST INSULATION UNIT
CA2057616A1 (en) Stampable sheet shaped-product, process for producing the same, and use of the same as sound-absorbing and heat-insulating material
LV5427A3 (en) Composite material sheet making
FR2355635A1 (en) Packaging material with expanded synthetic resin panel - having hinge grooves formed by heating plate bearing blades
ES442372A1 (en) Diaphragms for electrolytic cells
GB807090A (en) Improvements in or relating to laminates of lignin-cellulose comprising a carrier and a synthetic resin cover
DK0472808T3 (en) Process for producing a blister-free, calendered rubber web
GB1227668A (en)
SE8404679D0 (en) YTBEHANDLINGSFORFARANDE
JP2766813B2 (en) Formwork material
FR2368351A1 (en) PROCESS FOR MANUFACTURING PANELS FROM AGGLOMERATED CHIPS
JPS644312A (en) Mar-resistant synthetic resin molding
SU372063A1 (en) METHOD OF MANUFACTURING SHEET PARQUET
JPS5735119A (en) Manufacturing method of rotor for rotary piston engine
JPS54114588A (en) Production of top board
ATE142482T1 (en) METHOD FOR PRODUCING LIPOSOMES
JPS5748361A (en) Manufacture of flocked rubber product
ES237534A3 (en) Procedure for the manufacture of elastic wooden leaves and covered with an artificial or chemical matter (Machine-translation by Google Translate, not legally binding)
JPS5774116A (en) Preparation of prepreg
FR2372699A1 (en) PROCESS FOR MANUFACTURING COATING PANELS
JPS5534927A (en) Manufacturing method of decorative panel
JPS5961658A (en) Contact plate for concrete

Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse