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WO2002060664A1 - Materiau de construction composite et procede de fabrication d'objets avec ce materiau - Google Patents

Materiau de construction composite et procede de fabrication d'objets avec ce materiau Download PDF

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Publication number
WO2002060664A1
WO2002060664A1 PCT/IB2002/000189 IB0200189W WO02060664A1 WO 2002060664 A1 WO2002060664 A1 WO 2002060664A1 IB 0200189 W IB0200189 W IB 0200189W WO 02060664 A1 WO02060664 A1 WO 02060664A1
Authority
WO
WIPO (PCT)
Prior art keywords
mass
fluid
synthetic resin
ureic
artefact
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
PCT/IB2002/000189
Other languages
English (en)
Other versions
WO2002060664A9 (fr
Inventor
Michele Drelli
Ciro Migliore
Annibale Tontini
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO2002060664A1 publication Critical patent/WO2002060664A1/fr
Publication of WO2002060664A9 publication Critical patent/WO2002060664A9/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/002—Manufacture of substantially flat articles, e.g. boards, from particles or fibres characterised by the type of binder

Definitions

  • the present invention relates to the production of structurally resistant construction materials destined to the manufacture of artefacts usable directly as finished products, or able to constitute semi-finished products usable in various types of industries, for instance to replace wood, or its derivatives.
  • Some types of industries are known to employ construction materials derived from wood, or packaged with wood, preferably shavings, chips or fibres, which with or without using binders are worked in such a way as to provide panels or plates.
  • Such panels can find application in decorations, by means of applications of grooves or surface contours; in pavements; or as woodworking coatings by means of gluing with artificial resins.
  • Such panels are then employed as basic components for the fabrication of the furniture itself.
  • wood chip panels are obtained by means of fabrication methods and plants that perform the hot pressing of wood shavings and of binding resins; resins which in particular are obtained by mixing various adhesive substances (for instance: ureca, cement, formaldehyde) suitably mixed and appropriately dosed with each other.
  • adhesive substances for instance: ureca, cement, formaldehyde
  • the ligneous material once coming from the shaving of selected wood, having well determined nature and characteristics, is currently constituted in ever more preponderant measure by recycled material, of various origins and quality. It is not infrequent for said material to contain materials other than wood, such as metal parts, parts of plastic origin which are incorporated in the panel itself.
  • the aim of the present invention is to overcome all the drawbacks of the prior art by means of a construction material which, in accordance to the invention, comprises at least textile fibres and an adhesive synthetic resin, ureic based which in the fluid state, is able to impregnate, conglomerate the fibres and which, solidifying, is able to make them integral thereby forming a monolithic, structurally resistant material.
  • the ureic based synthetic resin constituted in particular by high viscosity urea- formaldehyde (also commercially known as "ureca"), advantageously with the addition of a vinyl resin, has revealed the surprising ability to be absorbed by the textile fibres and also be any additional fragments of added materials, of natural origin, so that it has been experimentally verified that it possible, surprisingly, to obtain in a very simple and economical manner a construction material with structural resistance characteristics that are suited to meet a wide variety of different uses; material which moreover combines to a reduced weight also the property of being at the same time waterproof and fire retardant and which, therefore, does not require any further particular type of treatment aimed at obtaining said results.
  • the material is advantageously suitable for being used for the fabrication of semi-finished or finished panels, destined for instance to the fabrication of furniture or tiles for floors; fabrication which can be obtained by means of work methods, also part of the invention, which respectively comprise - after impregnating the various types of fibres and the other materials which may be mixed therewith - a phase of pressing in a mould; or a lamination phase; or also an extrusion phase.
  • the material is suited also to be injected directly in the fluid state into the cavity of a forming mould, to assume the shapes of the most widely varying artefacts. Description of the Drawings
  • Figure 1 is a representation of an artefact, shaped as a panel or plate, made with a material according to the invention
  • FIGS 2, 3, 4 and 5 are schematic representations of examples of possible work methods, in accordance with which the material according to the invention can be used.
  • Figure 1 shows an artefact having, as an example, generally parallelepiped shape, obtained with a construction material essentially comprising, in combination, natural or artificial textile fibres 40, possibly conglomerated with a fragments 1 of straw in stems, at the natural state, subdivided into pieces of appropriate size, possibly also conglomerated with fragments of ligneous materials of various origins and characteristics; and a synthetic adhesive ureic based resin 2 able, in the liquid state, to impregnate the fibres 40 and the various materials conglomerated thereto and, solidifying, to agglomerate it and make it integral thereby forming a structurally resistant, compact monolithic material 3.
  • a construction material essentially comprising, in combination, natural or artificial textile fibres 40, possibly conglomerated with a fragments 1 of straw in stems, at the natural state, subdivided into pieces of appropriate size, possibly also conglomerated with fragments of ligneous materials of various origins and characteristics
  • a synthetic adhesive ureic based resin 2 able, in the liquid state
  • the textile fibres 40 can be obtained from various origins, for instance from scraps of textile industries.
  • the straw of vegetable origin, can be obtained from the mechanical break-up of cereal stalks, such as wheat, rice, corn, which, at the natural state, are water-repellent in themselves.
  • Said straw can also be combined with other materials, such as ligneous fragments 20 obtained by breaking up nutshells, peanuts, pine nuts, pine cones, reeds or other scrap materials obtained from squeezing sugarcane; or combined with fragments 30 of vegetable materials, originated from some fibrous plants, such as sunflowers, prickly pears, brooms.
  • the resin is preferably constituted by a urea-formaldehyde based liquid glue with high viscosity and high dry content, currently also known as "ureca"; preferably inclusive of a vinyl resin present in a percent ratio of between 10% and 20% of the total.
  • ureca a urea-formaldehyde based liquid glue with high viscosity and high dry content
  • the construction material obtained by the aggregation of the aforesaid components can be used for the manufacture of artefacts of wholly general shape which, merely by way of applicative and wholly indicative example, can find application in the furniture industry in lieu of conventional wood shavings panels or also to obtain paving plates.
  • the artefacts thereby obtained have a relatively low unit weight and are water-repellent and fire retardant; they also have very good heat and sound insulation characteristics.
  • said artefacts can be obtained by a succession of phases, providing for: impregnating the fibres 40 and the various fragments 1, 20, 30 which may have been added - in the synthetic resin 2 in the fluid state to obtain a physically heterogeneous, more or less consistent fluid mass 4; heating the mass 4 to an appropriate temperature; pressing; and solidification in a mould 5 until obtaining the compact, monolithic, structurally resistant artefact.
  • a variation to this method can be obtained by instead carrying out, after the impregnation and heating phase, a forming phase by lamination between rollers 6 and, subsequently, a solidification phase by means of an appropriate heat treatment.
  • Figure 4 schematically shows a production method whereby the artefacts can be obtained by carrying out, after the impregnation and partial solidification of the heterogeneous mass 4, a phase of extrusion through a suitable die 7.
  • Figure 5 depicts how the artefacts can be obtained by impregnating the fibres 40 and the fragments 1, 20, 30 of other materials in the synthetic resin 2 and by subsequently injecting the previously obtained heterogeneous mass 4 under pressure directly into a forming mould 5, appropriately heated, in which the material solidifies assuming the shape of the finished product.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Extrusion Of Metal (AREA)

Abstract

L'invention concerne un matériau de construction pour objets de construction, notamment des panneaux agglomérés, comprenant les éléments suivants : des fibres textiles naturelles ou artificielles, éventuellement mélangées à de la paille (1) de céréales sur tiges et/ou à des fragments de matériaux ligneux ou végétaux; une résine synthétique (3) adhésive, à base d'urée, qui, à l'état fluide, imprègne et agglomère les fibres, la paille (1) et les fragments, et qui, à l'état solide, les solidarise de telle sorte qu'ils forment un matériau (3) monolithique structurellement résistant. La présente invention porte également sur un objet et un procédé pour fabriquer des objets dudit matériau.
PCT/IB2002/000189 2001-01-31 2002-01-21 Materiau de construction composite et procede de fabrication d'objets avec ce materiau Ceased WO2002060664A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2001RN000010A ITRN20010010A1 (it) 2001-01-31 2001-01-31 Materiale costruttivo, composito, e metodo di fabbricazione di manufatti di detto materiale.
ITRN2001A000010 2001-01-31

Publications (2)

Publication Number Publication Date
WO2002060664A1 true WO2002060664A1 (fr) 2002-08-08
WO2002060664A9 WO2002060664A9 (fr) 2003-01-23

Family

ID=11456652

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2002/000189 Ceased WO2002060664A1 (fr) 2001-01-31 2002-01-21 Materiau de construction composite et procede de fabrication d'objets avec ce materiau

Country Status (2)

Country Link
IT (1) ITRN20010010A1 (fr)
WO (1) WO2002060664A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106476107A (zh) * 2016-12-19 2017-03-08 吉林恒大环保工程有限公司 纸面稻、麦草板及其生产装置与生产方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD87172A (fr) *
GB612128A (en) * 1946-04-05 1948-11-09 James Ferguson & Sons Ltd Improvements in or relating to the production of board-like materials
DD235291A1 (de) * 1985-03-13 1986-04-30 Sekundaerrohstofferfassung Kar Daemmplatte fuer bauzwecke
GB2304069A (en) * 1995-08-11 1997-03-12 Advance Enterprises Ltd A process for manufacturing organic and inorganic compositions, moulded flat or extruded or injection moulded
US6007649A (en) * 1996-01-31 1999-12-28 Bayer Aktiengesellschaft Method of producing press-moulding materials with polyisocyanate binders and using latent, heat-activable catalysts
EP1060852A1 (fr) * 1999-06-14 2000-12-20 SHINSEIKAN Co., Ltd. Procédé de stratification de panneaux de fibres

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD87172A (fr) *
GB612128A (en) * 1946-04-05 1948-11-09 James Ferguson & Sons Ltd Improvements in or relating to the production of board-like materials
DD235291A1 (de) * 1985-03-13 1986-04-30 Sekundaerrohstofferfassung Kar Daemmplatte fuer bauzwecke
GB2304069A (en) * 1995-08-11 1997-03-12 Advance Enterprises Ltd A process for manufacturing organic and inorganic compositions, moulded flat or extruded or injection moulded
US6007649A (en) * 1996-01-31 1999-12-28 Bayer Aktiengesellschaft Method of producing press-moulding materials with polyisocyanate binders and using latent, heat-activable catalysts
EP1060852A1 (fr) * 1999-06-14 2000-12-20 SHINSEIKAN Co., Ltd. Procédé de stratification de panneaux de fibres

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106476107A (zh) * 2016-12-19 2017-03-08 吉林恒大环保工程有限公司 纸面稻、麦草板及其生产装置与生产方法

Also Published As

Publication number Publication date
ITRN20010010A0 (it) 2001-01-31
WO2002060664A9 (fr) 2003-01-23
ITRN20010010A1 (it) 2002-07-31

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