FR2724342A1 - Composite material, used for floors of containers and vehicles - Google Patents

Composite material, used for floors of containers and vehicles Download PDF

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Publication number
FR2724342A1
FR2724342A1 FR9411100A FR9411100A FR2724342A1 FR 2724342 A1 FR2724342 A1 FR 2724342A1 FR 9411100 A FR9411100 A FR 9411100A FR 9411100 A FR9411100 A FR 9411100A FR 2724342 A1 FR2724342 A1 FR 2724342A1
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France
Prior art keywords
composite material
fillers
polypropylene
material according
wood
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Granted
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FR9411100A
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French (fr)
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FR2724342B1 (en
Inventor
Philippe Baranger
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POLYFONT SA
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POLYFONT SA
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Priority to FR9411100A priority Critical patent/FR2724342B1/en
Publication of FR2724342A1 publication Critical patent/FR2724342A1/en
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Publication of FR2724342B1 publication Critical patent/FR2724342B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/88—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts characterised primarily by possessing specific properties, e.g. electrically conductive or locally reinforced
    • 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
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • 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
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/16—Fillers
    • 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
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/26—Scrap or recycled material
    • 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
    • B29K2311/00—Use of natural products or their composites, not provided for in groups B29K2201/00 - B29K2309/00, as reinforcement
    • B29K2311/10—Natural fibres, e.g. wool or cotton
    • 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
    • B29K2711/14—Wood, e.g. woodboard or fibreboard
    • 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
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0063—Density
    • 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
    • B29L2007/00—Flat articles, e.g. films or sheets
    • B29L2007/002—Panels; Plates; Sheets
    • 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
    • B29L2031/776—Walls, e.g. building panels

Abstract

A composite material consists of (a) polypropylene, filled with (b) a poor material which lowers the density of the composite. Pref. the polypropylene has been recycled. The material is particles of wood or textiles. () The material may contain additives improving the dimensional stability, e.g. CaCO3 and/or glass beads and/or other plastic materials and/or textile fibres. The material has an irregular surface, raising the coefft. of friction between the material and an object in contact with it. The compsn. is 10-99 wt.% of polypropylene, 1-30% of (b). 0-40% of CaCO3 and 0-20<%> of other fillers raising the dimensional stability, partic. 15% of wood or other poor filler and 20% of CaCO3.

Description

La présente invention a pour objet un matériau composite et son application à des éléments de planchers, qui trouveront leur utilisation dans, notamment, la fabrication de planchers de conteneurs et/ou de véhicules tels que, par exemple, des camions ou remorques de camions. The present invention relates to a composite material and its application to floor elements, which will find their use in, in particular, the manufacture of floors for containers and / or vehicles such as, for example, trucks or truck trailers.

Toutefois, cette destination n'est pas limitative et la présente invention trouvera également son utilisation dans, notamment, la fabrication de planchers de tous types de véhicules aériens, maritimes ou terrestres, et plus généralement, dans tous les secteurs de l'activité économique où l'on est amené à réalisé des planchers ou autres. However, this destination is not limiting and the present invention will also find its use in, in particular, the manufacture of floors for all types of air, sea or land vehicles, and more generally, in all sectors of economic activity where one is brought to carried out floors or others.

Actuellement, pour réaliser notamment des planchers de véhicules, tels que ceux de camions ou de remorques de camions, il est connu d'utiliser différentes essences de bois telles que, par exemple, des bois précieux comme le kapur ou le bouleau finlandais, éventuellement revêtus de films thermoplastiques et/ou thermodurcissables. Currently, in order to make floors in particular for vehicles, such as those for trucks or truck trailers, it is known to use different types of wood such as, for example, precious woods such as kapur or Finnish birch, possibly coated. thermoplastic and / or thermosetting films.

Ces matériaux présentent l'avantage d'offrir une bonne résistance à la flexion et au poinçonnement ainsi qutune uns bonne étanchéité. De plus, ils bénéficient d'une bonne tenue à la corrosion et d'une stabilité dimensionnelle satisfaisante en cas de variation de température. These materials have the advantage of offering good resistance to bending and to puncturing as well as a good seal. In addition, they benefit from good corrosion resistance and satisfactory dimensional stability in the event of temperature variation.

Toutefois, de tels planchers présentent un coût de revient élevé qui, de plus, est directement soumis au variation des coûts de la matière première et aux lois du marché. However, such floors have a high production cost which, moreover, is directly subject to the variation in the costs of the raw material and to the laws of the market.

Le but de la présente invention est de proposer un matériau composite et son application à des éléments de planchers qui pallient les inconvénients précités grâce à l'utilisation de matériaux pauvres à la place de matériaux nobles. The aim of the present invention is to provide a composite material and its application to floor elements which overcome the aforementioned drawbacks by using poor materials instead of noble materials.

Un autre but de la présente invention est de proposer un matériau composite qui présente les mêmes caractéristiques que le bois. Il sera ainsi résistant à la flexion et au poinçonnement et étanche à l'eau, voire antidérapant. Another aim of the present invention is to provide a composite material which has the same characteristics as wood. It will thus be resistant to bending and to puncturing and waterproof, even non-slip.

De plus, de manière avantageuse par rapport au bois, il présentera une stabilité dimensionnelle à la fois en cas de variation de température et d'humidité. In addition, advantageously over wood, it will exhibit dimensional stability both in the event of temperature and humidity variation.

Un autre but de la présente invention est de proposer un matériau composite qui présente un poids inférieur ou égal à celui du bois. Another object of the present invention is to provide a composite material which has a weight less than or equal to that of wood.

Un autre but de la présente invention est de proposer un matériau composite qui utilise des éléments recyclables. Another object of the present invention is to provide a composite material which uses recyclable elements.

Un autre but de la présente invention est de proposer un matériau composite et son application à des éléments de plancher qui permettent une fabrication de tels éléments sans limitation de longueur. Another object of the present invention is to provide a composite material and its application to floor elements which allow such elements to be manufactured without limitation in length.

Un avantage de la présente invention réside dans le fait que son approvisionnement est simplifié et son retraitement facilité, ce qui en diminue le coût de revient total. An advantage of the present invention lies in the fact that its supply is simplified and its reprocessing facilitated, which reduces the total cost thereof.

Un autre avantage du matériau composite conforme à l'invention est qu'il présente des caractéristiques de résistance mécanique qui permettent sa mise en oeuvre dans de nombreux secteurs de l'activité économique, ce qui en accroit ses capacités d'utilisation. Another advantage of the composite material in accordance with the invention is that it has mechanical resistance characteristics which allow its use in many sectors of economic activity, which increases its capacity for use.

D'autres buts et avantages de la présente invention apparaitront au cours de la description qui va suivre, qui n'est cependant donnée qu'à titre indicatif et qui n'a pas pour but de la limiter. Other objects and advantages of the present invention will become apparent from the description which follows, which is however given only as an indication and which is not intended to limit it.

Selon la présente invention, le matériau composite est constitué au moins de polypropylène, chargé au moins de particules d'un matériau pauvre, aptes à diminuer la densité dudit matériau composite. According to the present invention, the composite material consists of at least polypropylene, loaded with at least particles of a poor material, capable of reducing the density of said composite material.

L'invention concerne également une application d'un tel matériau composite à des éléments de planchers et plus précisément à des éléments de planchers de conteneurs et/ou de véhicules maritimes, aériens et/ou terrestres. The invention also relates to an application of such a composite material to floor elements and more specifically to floor elements of containers and / or sea, air and / or land vehicles.

L'invention sera mieux comprise si l'on se réfère à la description suivante ainsi qu'aux dessins en annexe qui en font partie intégrante. The invention will be better understood if reference is made to the following description as well as to the appended drawings which form an integral part thereof.

La figure 1 montre, en vue de coupe, un échantillon d'un matériau composite conforme à l'invention. FIG. 1 shows, in sectional view, a sample of a composite material according to the invention.

La figure 2 présente, en vue latérale, un exemple d'application du matériau composite conforme à l'invention à des planchers de conteneurs et/ou de véhicules maritimes, aériens et/ou terrestres. FIG. 2 shows, in side view, an example of application of the composite material according to the invention to the floors of containers and / or sea, air and / or land vehicles.

L'invention concerne un matériau composite. The invention relates to a composite material.

Bien que plus particulièrement destinée à des éléments de planchers, notamment de conteneurs et/ou de véhicules tels que des camions et/ou des remorques de camions, la présente invention n en est aucunement limitée à de telles utilisations et trouvera, d'une façon générale, son application à des éléments de planchers de tous types de conteneurs et/ou de véhicules aériens, maritimes et/ou terrestres.Although more particularly intended for floor elements, in particular of containers and / or vehicles such as trucks and / or truck trailers, the present invention is in no way limited to such uses and will find, in a way general, its application to floor elements of all types of containers and / or air, sea and / or land vehicles.

De plus, la présente invention pourra également être utilisée pour la fabrication de planchers, de parois ou analogues, pour lesquels on cherche à concilier des propriétés d'utilisation satisfaisantes et un prix réduit. In addition, the present invention can also be used for the manufacture of floors, walls or the like, for which it is sought to reconcile satisfactory use properties and a reduced price.

Comme représenté à la figure 1, le matériau composite conforme à l'invention est constitué au moins de polypropylène 1. Cette matière présente l'avantage d'être étanche à l'eau. De plus, elle est d'un approvisionnement aisé et d'un coût réduit. As shown in Figure 1, the composite material according to the invention consists of at least polypropylene 1. This material has the advantage of being waterproof. In addition, it is easy to supply and low in cost.

En outre, le polypropylène 1 est au moins chargé de particules d'un matériau dit pauvre 3. Ces dernières sont d'un coût de revient réduit. Elles sont également aptes à diminuer la densité du matériau composite qui présente ainsi un poids limité. In addition, the polypropylene 1 is at least loaded with particles of a so-called poor material 3. The latter have a reduced cost price. They are also able to reduce the density of the composite material which thus has a limited weight.

Suivant un mode particulier de réalisation de l'invention, le matériau composite est constitué de polypropylène 1 recyclé. Il peut s'agir, par exemple, de polypropylènes issus de l'industrie textile qui en consomme en quantité importante. According to a particular embodiment of the invention, the composite material consists of recycled polypropylene 1. They may be, for example, polypropylenes obtained from the textile industry which consumes a large quantity thereof.

Ceci permet de diminuer encore le coût de revient du matériau de l'invention. This makes it possible to further reduce the cost price of the material of the invention.

Les charges de matériau pauvre 3 sont, par exemple, constituées de particules de bois. On utilisera, de préférence, des essences de bois non précieux et présentant une densité réduite. Il pourra s'agir, par exemple, de pins. The fillers of lean material 3 are, for example, made up of wood particles. Use will preferably be made of non-precious wood species having a reduced density. It could be, for example, pines.

Les différentes charges de particules de matériaux pauvres 3 sont finement divisées afin de conserver l'homogénéité et l'isotropie du matériau composite. The different charges of particles of poor materials 3 are finely divided in order to maintain the homogeneity and isotropy of the composite material.

Les charges de matériau pauvre 3 peuvent également être constituées, notamment, de fibres textiles telles que, par exemple, du lin. The fillers of poor material 3 can also consist, in particular, of textile fibers such as, for example, flax.

Suivant un mode particulier de l'invention, le matériau composite comprend, en outre, des charges 4 aptes à augmenter sa stabilité dimensionnelle. Ainsi, par exemple, la dilatation du matériau composite conforme à l'invention est limitée à la fois en cas de variation de la température et/ou du taux d'humidité. According to a particular embodiment of the invention, the composite material further comprises fillers 4 capable of increasing its dimensional stability. Thus, for example, the expansion of the composite material in accordance with the invention is limited both in the event of a variation in the temperature and / or in the humidity level.

Ces charges 4 sont constituées, par exemple, de billes de verres et/ou d'autres matières plastiques et/ou de fibres textiles telles que, notamment, du lin. These fillers 4 consist, for example, of glass beads and / or of other plastics and / or of textile fibers such as, in particular, flax.

Il peut s'agir, également de carbonate de calcium 2, cette matière facilitant une meilleure répartition des calories, notamment lors d'une élévation de température. It may also be calcium carbonate 2, this material facilitating better distribution of the calories, in particular during a rise in temperature.

Le carbonate de calcium présente, en outre, l'intérêt de renforcer la rigidité du matériau composite conforme à l'invention. Ce dernier offre ainsi une résistance à la flexion et au poinçonnement satisfaisante. Calcium carbonate also has the advantage of reinforcing the rigidity of the composite material in accordance with the invention. The latter thus offers satisfactory bending and puncturing resistance.

Toujours suivant la figure 1, on remarque que le matériau composite peut présenter un état de surface 5 irrégulier. Ceci permet d'augmenter le coefficient de frottement entre un objet en contact avec le matériau composite et ce même matériau et par suite de limiter le glissement et/ou le dérapage d'objets en contact avec la surface du matériau composite. Still according to Figure 1, it is noted that the composite material may have an irregular surface condition. This makes it possible to increase the coefficient of friction between an object in contact with the composite material and this same material and consequently to limit the sliding and / or the skidding of objects in contact with the surface of the composite material.

Pour cela, la surface 5 présente, par exemple, des bosses 6 et des creux 7, obtenus, notamment par calandrage. For this, the surface 5 has, for example, bumps 6 and hollows 7, obtained, in particular by calendering.

Selon un mode particulier de réalisation de l'invention, les proportions, en poids, des différents composants du matériau composite sont, par exemple
- 10 à 99 % de polypropylène,
- 1 à 30 % de bois et/ou d'autres charges de matériau pauvre 3,
- 0 à 40 % de carbonate de calcium,
- 0 à 20 % d'autres charges aptes à augmenter la stabilité dimensionnelle, la somme des proportions, en poids, des différents composants étant égale à 100 %.According to a particular embodiment of the invention, the proportions, by weight, of the various components of the composite material are, for example
- 10 to 99% polypropylene,
- 1 to 30% of wood and / or other fillers of poor material 3,
- 0 to 40% calcium carbonate,
- 0 to 20% of other fillers capable of increasing dimensional stability, the sum of the proportions, by weight, of the various components being equal to 100%.

Le matériau composite conforme à l'invention comprend ainsi, par exemple, en poids, 15 % de bois et/ou d'autres charges de matériau pauvre 3 et 20 % de carbonate de calcium. The composite material according to the invention thus comprises, for example, by weight, 15% of wood and / or other fillers of poor material 3 and 20% of calcium carbonate.

Les différentes charges composants le matériau composite, sont rajoutées, notamment, dans le polypropylène en fusion. The various fillers making up the composite material are added, in particular, in the molten polypropylene.

Cela étant, l'invention concerne également une application d'un tel matériau composite à des éléments de planchers et, notamment, à des éléments de planchers de conteneurs et/ou de véhicules maritimes, aériens et/ou terrestres. However, the invention also relates to an application of such a composite material to floor elements and, in particular, to floor elements of containers and / or maritime, air and / or land vehicles.

A la figure 2, on remarque un mode particulier de réalisation d'éléments de plancher 8 conformes à l'invention. In Figure 2, there is a particular embodiment of floor elements 8 according to the invention.

Il s'agit par exemple de planchers de conteneurs et/ou de véhicules tels que des camions et/ou des remorques de camions. These are, for example, floors of containers and / or vehicles such as trucks and / or truck trailers.

Les éléments de planchers 8 sont assujettis, par exemple, à des traverses 9, elles-mêmes assujetties à des longerons 10. The floor elements 8 are secured, for example, to cross members 9, themselves secured to side members 10.

Les éléments de plancher 8 de part les propriétés du matériau composite conforme à l'invention, sont aptes à être cloués ou vissés sur les longerons 10. The floor elements 8 owing to the properties of the composite material according to the invention, are suitable for being nailed or screwed onto the side members 10.

De plus, les éléments de plancher 8 présentent les mêmes caractéristiques, notamment d'épaisseurs et de profil latéral que les lattes de bois couramment utilisées dans le domaine de la construction de conteneurs et/ou de véhicules, tels que des camions et/ou des remorques de camions, afin de pouvoir être utilisés en lieu et place de celles-ci, sans nécessiter de modification de l'outil de production. In addition, the floor elements 8 have the same characteristics, in particular of thicknesses and of lateral profile as the wooden slats commonly used in the field of the construction of containers and / or vehicles, such as trucks and / or trucks. truck trailers, in order to be able to be used instead of them, without requiring any modification of the production tool.

En ce qui concerne l'épaisseur, les éléments de plancher 8 pourront atteindre, par exemple, 20 à 25 millimètres. Regarding the thickness, the floor elements 8 may reach, for example, 20 to 25 millimeters.

De plus, leur poids est limité, ce qui constitue un atout dans le domaine du transport. In addition, their weight is limited, which is an advantage in the field of transport.

Grâce aux propriétés, notamment de résistance mécanique et d'antidérapage du matériau composite conforme à l'invention, les éléments de plancher 8 sont aptes à supporter les déplacements de chariots élévateurs couramment utilisés pour le stockage ou le destockage d'éléments. Thanks to the properties, in particular of mechanical resistance and of anti-slip of the composite material according to the invention, the floor elements 8 are able to withstand the movements of forklifts commonly used for the storage or destocking of elements.

Naturellement, d'autres mises en oeuvre de la présente invention à la portée de l'Homme de l'Art auraient pu être envisagées sans pour autant sortir du cadre de la présente demande. Naturally, other implementations of the present invention within the reach of those skilled in the art could have been envisaged without however departing from the scope of the present application.

Claims (10)

REVENDICATIONS 1. Matériau composite, constitué au moins de polypropylène (1), chargé au moins de particules d'un matériau pauvre (3), apte à diminuer la densité dudit matériau composite. 1. Composite material, consisting at least of polypropylene (1), loaded with at least particles of a poor material (3), capable of reducing the density of said composite material. 2. Matériau composite, selon la revendication 1, caractérisé par le fait que le polypropylène (1) est du polypropylène recyclé. 2. Composite material according to claim 1, characterized in that the polypropylene (1) is recycled polypropylene. 3. Matériau composite, selon la revendication 1, caractérisé par le fait que les charges de matériau pauvre (3) sont constituées de particules de bois et/ou de fibres textiles. 3. Composite material according to claim 1, characterized in that the fillers of poor material (3) consist of wood particles and / or textile fibers. 4. Matériau composite selon la revendication 1, caractérisé par le fait qu'il comprend, en outre, des charges (4) aptes à augmenter la stabilité dimensionnelle dudit matériau composite. 4. Composite material according to claim 1, characterized in that it further comprises fillers (4) capable of increasing the dimensional stability of said composite material. 5. Matériau composite selon la revendication 4, caractérisé par le fait que les charges (4), aptes à augmenter la stabilité dimensionnelle dudit matériau composite, sont constituées de carbonate de calcium (2) et/ou de billes de verres et/ou d'autres matières plastiques et/ou de fibres textiles. 5. Composite material according to claim 4, characterized in that the fillers (4), capable of increasing the dimensional stability of said composite material, consist of calcium carbonate (2) and / or glass beads and / or d other plastics and / or textile fibers. 6. Matériau composite selon la revendication 1, caractérisé par le fait qu'il présente un état de surface irrégulier, apte à augmenter le coefficient de frottement entre un objet en contact avec le dit matériau et ledit matériau. 6. Composite material according to claim 1, characterized in that it has an irregular surface condition, capable of increasing the coefficient of friction between an object in contact with said material and said material. 7. Matériau composite, selon les revendications 1 à 6, caractérisé par le fait que les proportions en poids de ces différents composants sont 7. Composite material according to claims 1 to 6, characterized in that the proportions by weight of these various components are - 10 à 99 % de polypropylène, - 10 to 99% polypropylene, - 1 à 30 % de bois et/ou d'autres charges de matériau pauvre (3), - 1 to 30% of wood and / or other fillers of poor material (3), - 0 à 40 % de carbonate de calcium, - 0 to 40% calcium carbonate, - 0 à 20 % d'autres charges aptes à augmenter la stabilité dimensionnelle, la somme des proportions, en poids, des différents composants étant égale à 100 %. - 0 to 20% of other fillers capable of increasing dimensional stability, the sum of the proportions, by weight, of the various components being equal to 100%. 8. Matériau composite selon la revendication 7, caractérisé par le fait qu'il comprend environ, en poids, 15 % de bois et/ou d'autres charges de matériau pauvre (3) et 20 % de carbonate de calcium. 8. Composite material according to claim 7, characterized in that it comprises approximately, by weight, 15% of wood and / or other fillers of poor material (3) and 20% of calcium carbonate. 9. Application du matériau composite selon l'une quelconque des revendications précédentes, à des éléments de planchers. 9. Application of the composite material according to any one of the preceding claims, to floor elements. 10. Application du matériau composite selon la revendication 9, à des éléments de planchers, de conteneurs et/ou de véhicules maritimes, aériens et/ou terrestres. 10. Application of the composite material according to claim 9, to elements of floors, containers and / or sea, air and / or land vehicles.
FR9411100A 1994-09-12 1994-09-12 POLYPROPYLENE COMPOSITE MATERIAL AND ITS APPLICATION TO FLOOR ELEMENTS Expired - Fee Related FR2724342B1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1100288A1 (en) * 1982-11-17 1984-06-30 Новополоцкое Отделение Предприятия П/Я В-2913 Polymeric composition
JPS59217743A (en) * 1983-05-25 1984-12-07 Kasai Kogyo Co Ltd Wood-filled composite resin composition
EP0319589A1 (en) * 1987-06-26 1989-06-14 Namba Press Works Co. Ltd. Thermoplastic composite material reinforced with hemp fibers

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1100288A1 (en) * 1982-11-17 1984-06-30 Новополоцкое Отделение Предприятия П/Я В-2913 Polymeric composition
JPS59217743A (en) * 1983-05-25 1984-12-07 Kasai Kogyo Co Ltd Wood-filled composite resin composition
EP0319589A1 (en) * 1987-06-26 1989-06-14 Namba Press Works Co. Ltd. Thermoplastic composite material reinforced with hemp fibers

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Week 0485, Derwent World Patents Index; AN 85-024748 *
PATENT ABSTRACTS OF JAPAN vol. 9, no. 88 (C - 276) 17 April 1985 (1985-04-17) *

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