WO1990014457A1 - Method of manufacturing a fiber reinforced plastics material and a plastics material produced by the method - Google Patents

Method of manufacturing a fiber reinforced plastics material and a plastics material produced by the method Download PDF

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Publication number
WO1990014457A1
WO1990014457A1 PCT/FI1990/000131 FI9000131W WO9014457A1 WO 1990014457 A1 WO1990014457 A1 WO 1990014457A1 FI 9000131 W FI9000131 W FI 9000131W WO 9014457 A1 WO9014457 A1 WO 9014457A1
Authority
WO
WIPO (PCT)
Prior art keywords
web
plastics material
fiber
fibers
fiber reinforced
Prior art date
Application number
PCT/FI1990/000131
Other languages
French (fr)
Inventor
Kay RÖKMAN
Paul Saris
Original Assignee
A. Ahlstrom Corporation
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 A. Ahlstrom Corporation filed Critical A. Ahlstrom Corporation
Publication of WO1990014457A1 publication Critical patent/WO1990014457A1/en

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4209—Inorganic fibres
    • D04H1/4218—Glass fibres
    • 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
    • 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
    • B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
    • B29C70/12—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of short length, e.g. in the form of a mat
    • 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
    • B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
    • B29C70/504—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC] using rollers or pressure bands
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4282—Addition polymers
    • D04H1/4291—Olefin series
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/559—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving the fibres being within layered webs
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/60—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in dry state, e.g. thermo-activatable agents in solid or molten state, and heat being applied subsequently
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/74—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being orientated, e.g. in parallel (anisotropic fleeces)

Definitions

  • the present invention relates to a method of manufacturing a fiber reinforced plastics material by a dry forming method.
  • the problem in manufacturing fiber reinforced materials is ofteri that bundles of the reinforcing fibers exist as the fiber bundle has not fully opened in the matrix and the fiber distribution is uneven.
  • the fiber web is in most cases produced by preparing a water dispersion of the reinforcing fibers and the particulate plastics material and by filtering the water out.
  • a disadvantage of this wet process is that the bonding chemicals are often washed out from the pretreated fibers in the dispersion stage.
  • a web with improved fiber distribution is achieved by a dry method by carding open the fiber which produces an open, porous and bulky web. Due to the dry process, the selection of the chemical treatment of the fibers to suit the matrix is wider than with a wet process, as there is no danger of the bonding chemicals being washed away.
  • a product is achieved by the method of the present invention, which is more homogenous and, due to a better bonding, has more advantageous mechanical properties than a product produced by conventional methods.
  • the method of the present invention comprise the following steps:
  • Glass fiber is usually used as the reinforcing fiber. Handling of the glass fiber is rendered easier by mixing synthetic organic fibers with the glass fibers whereby internal web transport in the machine is easier.
  • the synthetic fibers can be chosen a) to be comprised of the same polymer as the matrix whereby they melt to the matrix when heated and form together a matrix. Suitable substances are for example polypropylene, polyester and polyamide, b) not to melt when heated but to form with the glass fiber a part reinforcing the composite. Suitable substances are for example aramid fiber, carbon fiber or a fiber which has a remarkably higher melting point than the material of the matrix, e.g. polyester fiber in a polypropylene matrix.
  • the fibers can be treated in advance e.g. with peroxides, which make them behave in the forming process in a way which improves the flowability of the matrix and thus a better surface of the product is achieved.
  • Cut glass fiber and synthetic fiber are dosed in a belt scale 1 and precarded in a schredder 2.
  • the fibers are transported by a fan 3 to a mixing vessel 4 in which they are mixed by means of an air flow, i.e. they are homogenized and the surface weight is adjusted. After this the fibers are further opened by a non-woven textile carding machine 5.
  • a web 6 is formed of the treated fibers onto a Fourdrinier wire. After the web formation, pulverous matrix 7 is dosed between each fiber web layer by using vibration if necessary.
  • the surface weight of the web is determined at point 13.
  • the machine folds the thin layers to form a superimposed structure in a folding unit 8 whereby the desired surface weight is achieved and the matrix 7 is evenly distributed in the depth direction.
  • This web is heated e.g. in a double wire press 11 to a temperature higher than the melting temperature of the matrix, e.g. polypropylene to 190 to 200°C or polyamide to about 300°C. Thereafter the web is pressed and cooled under pressure and cut to sheets (12) of the desired size which can be formed into the required plastics products.
  • a temperature higher than the melting temperature of the matrix e.g. polypropylene to 190 to 200°C or polyamide to about 300°C.
  • a fiber-free layer is produced which facilitates production of a good, smooth surface.
  • So- called roving threads or fabric as well as various fiber webs, for example web made up of electrically conductive fibers can be added to the web between the layers at this point or earlier after the web formation.
  • the length of the glass fiber is preferably 8 to 30 mm and carding produces a porous web of 50 to 200 g/m 2 .
  • Pulverous matrix is added between each fiber web layer in the correct weight proportion, normally 80 to 50 % of the total weight. All thermoplastics are suitable for this purpose.
  • the desired surface weight of the product e.g. 2000 to 4000 g/m 2 , is acquired at the folding unit.
  • the present invention provides a method of manufacturing a reinforced thermoplastic sheet with favourable fiber distribution. Due to the shortness of the fibers they are easily carried with the fluid matrix even into difficult forms such as reinforcing handles, where the strenght of the fibers is needed.
  • Glass fibers the length of which is 12 mm and into which 10 % by weight polypropylene has been added, are treated in a carding machine. After the web has been formed, polypropylene powder is strewn onto the web whereby the proportion of the reinforcing fiber is 30 % by weight. Then the thin layers of web are superimposed by folding which gives a surface weight of 3000 g/m 2 . This web is heated to 190°C and pressed at the pressure of 2 bar, cooled and cut to sheets of the desired size.
  • the sheets are formed into the desired products the tensile strength of which is 90 MPa, the elongation at break 2,5 %, the impact strength 55 charpy, the flexural strength 140 N mm" - • the tensile modulus 4500 N mm" - and the flexural modulus 5500 N mm" - .
  • the web can also be coated with polypropylene film if a very smooth surface is desired.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Inorganic Chemistry (AREA)
  • Reinforced Plastic Materials (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

The present invention relates to a method of manufacturing a fiber reinforced plastics material by a dry forming method. By this method the fibers are opened by carding, a web is formed of the fibers, pulverous matrix is dosed onto the web, the layers of the web are superimposed by folding, the layered web is heated, pressed and cooled.

Description

METHOD OF MANUFACTURING A FIBER REINFORCED PLASTICS MATERIAL AND A PLASTICS MATERIAL PRODUCED BY THE METHOD
The present invention relates to a method of manufacturing a fiber reinforced plastics material by a dry forming method.
The problem in manufacturing fiber reinforced materials is ofteri that bundles of the reinforcing fibers exist as the fiber bundle has not fully opened in the matrix and the fiber distribution is uneven. The fiber web is in most cases produced by preparing a water dispersion of the reinforcing fibers and the particulate plastics material and by filtering the water out. A disadvantage of this wet process is that the bonding chemicals are often washed out from the pretreated fibers in the dispersion stage.
The object of the present invention is to avoid such disadvantages. A web with improved fiber distribution is achieved by a dry method by carding open the fiber which produces an open, porous and bulky web. Due to the dry process, the selection of the chemical treatment of the fibers to suit the matrix is wider than with a wet process, as there is no danger of the bonding chemicals being washed away.
A product is achieved by the method of the present invention, which is more homogenous and, due to a better bonding, has more advantageous mechanical properties than a product produced by conventional methods.
The method of the present invention comprise the following steps:
- opening the fiber by carding
- forming a web of the fibers opened by carding - dosing a pulverous matrix onto the formed web
- superimposing the layers of the web by folding
- heating, pressing and cooling the layered web. Glass fiber is usually used as the reinforcing fiber. Handling of the glass fiber is rendered easier by mixing synthetic organic fibers with the glass fibers whereby internal web transport in the machine is easier. The synthetic fibers can be chosen a) to be comprised of the same polymer as the matrix whereby they melt to the matrix when heated and form together a matrix. Suitable substances are for example polypropylene, polyester and polyamide, b) not to melt when heated but to form with the glass fiber a part reinforcing the composite. Suitable substances are for example aramid fiber, carbon fiber or a fiber which has a remarkably higher melting point than the material of the matrix, e.g. polyester fiber in a polypropylene matrix.
The fibers can be treated in advance e.g. with peroxides, which make them behave in the forming process in a way which improves the flowability of the matrix and thus a better surface of the product is achieved.
The invention is described in more detail, by way of example, with reference to the accompanying schematic drawing.
Cut glass fiber and synthetic fiber are dosed in a belt scale 1 and precarded in a schredder 2. The fibers are transported by a fan 3 to a mixing vessel 4 in which they are mixed by means of an air flow, i.e. they are homogenized and the surface weight is adjusted. After this the fibers are further opened by a non-woven textile carding machine 5. A web 6 is formed of the treated fibers onto a Fourdrinier wire. After the web formation, pulverous matrix 7 is dosed between each fiber web layer by using vibration if necessary. The surface weight of the web is determined at point 13. The machine folds the thin layers to form a superimposed structure in a folding unit 8 whereby the desired surface weight is achieved and the matrix 7 is evenly distributed in the depth direction. This web is heated e.g. in a double wire press 11 to a temperature higher than the melting temperature of the matrix, e.g. polypropylene to 190 to 200°C or polyamide to about 300°C. Thereafter the web is pressed and cooled under pressure and cut to sheets (12) of the desired size which can be formed into the required plastics products.
By applying prior to the press 11 a film of the same polymer as the matrix with an extruder or a finished film (9, 10) from a roller and heating it simultaneously with the web in the press 11, a fiber-free layer is produced which facilitates production of a good, smooth surface. So- called roving threads or fabric as well as various fiber webs, for example web made up of electrically conductive fibers can be added to the web between the layers at this point or earlier after the web formation.
The length of the glass fiber is preferably 8 to 30 mm and carding produces a porous web of 50 to 200 g/m2.
5 to 20 % by weight synthetic organic fibers are added among the glass fibers.
Pulverous matrix is added between each fiber web layer in the correct weight proportion, normally 80 to 50 % of the total weight. All thermoplastics are suitable for this purpose.
The desired surface weight of the product, e.g. 2000 to 4000 g/m2 , is acquired at the folding unit.
The present invention provides a method of manufacturing a reinforced thermoplastic sheet with favourable fiber distribution. Due to the shortness of the fibers they are easily carried with the fluid matrix even into difficult forms such as reinforcing handles, where the strenght of the fibers is needed. Example
Glass fibers, the length of which is 12 mm and into which 10 % by weight polypropylene has been added, are treated in a carding machine. After the web has been formed, polypropylene powder is strewn onto the web whereby the proportion of the reinforcing fiber is 30 % by weight. Then the thin layers of web are superimposed by folding which gives a surface weight of 3000 g/m2. This web is heated to 190°C and pressed at the pressure of 2 bar, cooled and cut to sheets of the desired size. The sheets are formed into the desired products the tensile strength of which is 90 MPa, the elongation at break 2,5 %, the impact strength 55 charpy, the flexural strength 140 N mm" - • the tensile modulus 4500 N mm" - and the flexural modulus 5500 N mm" - . The web can also be coated with polypropylene film if a very smooth surface is desired.

Claims

What we claim is:
1. A method of manufacturing a fiber reinforced raw plastics material by a dry method, characterized by the steps of
- opening the fiber by carding
- forming the web from the fibers opened by carding
- dosing pulverous matrix onto the formed web
- superimposing the layers of the web by folding - heating, pressing and cooling the layered web.
2. A method as claimed in claim 1, characterized in that the layered web is laminated.
3. A method as claimed in claim 1, characterized in that the reinforcing material is glass fiber.
4. A method as claimed in claim 3, characterized in that the length of the glass fiber is 8 to 30 mm.
5. A method as claimed in claim 3, characterized in that synthetic organic fibers are used in addition to the glass fiber.
6. A method as claimed in claim 5, characterized in that 5 to 20 % synthetic fibers are added.
7. A method as claimed in claim 1, characterized in that the pulverous matrix is a thermoplastic polymer.
8. A fiber reinforced plastics material whenever produced according to any one of claims 1 to 7.
PCT/FI1990/000131 1989-05-17 1990-05-14 Method of manufacturing a fiber reinforced plastics material and a plastics material produced by the method WO1990014457A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI892355 1989-05-17
FI892355A FI84843C (en) 1989-05-17 1989-05-17 Process for producing fiber-reinforced raw material for plastics

Publications (1)

Publication Number Publication Date
WO1990014457A1 true WO1990014457A1 (en) 1990-11-29

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (2)

Country Link
FI (1) FI84843C (en)
WO (1) WO1990014457A1 (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5668216A (en) * 1993-03-04 1997-09-16 Wacker-Chemie Gmbh Crosslinkabel dispersion powders as binders for fibers
US5977244A (en) * 1997-07-31 1999-11-02 Wacker-Chemie Gmbh Hanns- Seidel-Platz 4 Powdered crosslinkable textile binder composition
CN1048532C (en) * 1992-08-11 2000-01-19 西摩远东有限公司 Method to make lining material of clothes and produced firm fibre lining material
EP1046737A1 (en) * 1999-04-22 2000-10-25 Wacker-Chemie GmbH Method of manufacturing airlaid nonwoven fabrics
EP1050613A1 (en) * 1998-04-16 2000-11-08 Laroche Sa Process and device for making nonwoven articles from recycled or not recycled fibers, and articles made thereof
US6511561B1 (en) 1998-06-19 2003-01-28 Wacker-Chemie Gmbh Fiber binding powder composition for consolidating fiber materials
US6716922B1 (en) 1999-10-14 2004-04-06 Basf Aktiengesellschaft Thermally hardenable polymer binding agent in the form of a powder
US6884837B2 (en) 2000-03-23 2005-04-26 Wacker Polymer Systems, Gmbh & Co. Crosslinkable polymer composition
US7005024B2 (en) * 1996-01-19 2006-02-28 Saint-Gobain Vetrotex France S.A. Process and device for the manufacture of a composite material
US7674495B2 (en) * 2002-12-13 2010-03-09 Ocv Intellectual Capital, Llc Method and device for making a composite plate
WO2014070989A1 (en) * 2012-11-01 2014-05-08 Federal-Mogul Powertrain, Inc. Powder resin layered nonwoven material and method of construction thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2671496A (en) * 1950-03-23 1954-03-09 Chavannes Ind Synthetics Inc Method and apparatus for bonding fibers together
CH362044A (en) * 1954-02-26 1962-05-31 United Plastics Ind Inc Device for producing a bonded fiber fleece
US4237180A (en) * 1976-01-08 1980-12-02 Jaskowski Michael C Insulation material and process for making the same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2671496A (en) * 1950-03-23 1954-03-09 Chavannes Ind Synthetics Inc Method and apparatus for bonding fibers together
CH362044A (en) * 1954-02-26 1962-05-31 United Plastics Ind Inc Device for producing a bonded fiber fleece
US4237180A (en) * 1976-01-08 1980-12-02 Jaskowski Michael C Insulation material and process for making the same

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1048532C (en) * 1992-08-11 2000-01-19 西摩远东有限公司 Method to make lining material of clothes and produced firm fibre lining material
US5668216A (en) * 1993-03-04 1997-09-16 Wacker-Chemie Gmbh Crosslinkabel dispersion powders as binders for fibers
US7005024B2 (en) * 1996-01-19 2006-02-28 Saint-Gobain Vetrotex France S.A. Process and device for the manufacture of a composite material
US5977244A (en) * 1997-07-31 1999-11-02 Wacker-Chemie Gmbh Hanns- Seidel-Platz 4 Powdered crosslinkable textile binder composition
EP1050613A1 (en) * 1998-04-16 2000-11-08 Laroche Sa Process and device for making nonwoven articles from recycled or not recycled fibers, and articles made thereof
US6511561B1 (en) 1998-06-19 2003-01-28 Wacker-Chemie Gmbh Fiber binding powder composition for consolidating fiber materials
DE19918343C2 (en) * 1999-04-22 2001-03-08 Wacker Chemie Gmbh Process for the production of non-woven fabrics by the airlaid process
US6458299B1 (en) 1999-04-22 2002-10-01 Wacker Chemie Gmbh Production of fiber webs by the airlaid process
DE19918343A1 (en) * 1999-04-22 2000-10-26 Wacker Chemie Gmbh Process for the production of non-woven fabrics by the airlaid process
EP1046737A1 (en) * 1999-04-22 2000-10-25 Wacker-Chemie GmbH Method of manufacturing airlaid nonwoven fabrics
US6716922B1 (en) 1999-10-14 2004-04-06 Basf Aktiengesellschaft Thermally hardenable polymer binding agent in the form of a powder
US6884837B2 (en) 2000-03-23 2005-04-26 Wacker Polymer Systems, Gmbh & Co. Crosslinkable polymer composition
US7674495B2 (en) * 2002-12-13 2010-03-09 Ocv Intellectual Capital, Llc Method and device for making a composite plate
WO2014070989A1 (en) * 2012-11-01 2014-05-08 Federal-Mogul Powertrain, Inc. Powder resin layered nonwoven material and method of construction thereof
US10006157B2 (en) 2012-11-01 2018-06-26 Federal-Mogul Powertrain Llc Powder resin layered nonwoven material and method of construction thereof

Also Published As

Publication number Publication date
FI892355A (en) 1990-11-18
FI84843C (en) 1992-01-27
FI84843B (en) 1991-10-15
FI892355A0 (en) 1989-05-17

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