WO2001042007A1 - Fabric reinforced rubber for sheet for the production of slabs of resin hardend finely divided stone material - Google Patents

Fabric reinforced rubber for sheet for the production of slabs of resin hardend finely divided stone material Download PDF

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Publication number
WO2001042007A1
WO2001042007A1 PCT/EP2000/011883 EP0011883W WO0142007A1 WO 2001042007 A1 WO2001042007 A1 WO 2001042007A1 EP 0011883 W EP0011883 W EP 0011883W WO 0142007 A1 WO0142007 A1 WO 0142007A1
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WO
WIPO (PCT)
Prior art keywords
rubber
sheet
fabric
cloth
slabs
Prior art date
Application number
PCT/EP2000/011883
Other languages
French (fr)
Inventor
Luca Toncelli
Original Assignee
Luca Toncelli
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 Luca Toncelli filed Critical Luca Toncelli
Priority to IL14382700A priority Critical patent/IL143827A/en
Priority to CA002357009A priority patent/CA2357009C/en
Publication of WO2001042007A1 publication Critical patent/WO2001042007A1/en
Priority to US10/960,766 priority patent/US7241710B2/en

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
    • B32B25/00Layered products comprising a layer of natural or synthetic rubber
    • B32B25/10Layered products comprising a layer of natural or synthetic rubber next to a fibrous or filamentary layer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00Moulds; Cores; Mandrels
    • B28B7/34Moulds, cores, or mandrels of special material, e.g. destructible materials
    • B28B7/348Moulds, cores, or mandrels of special material, e.g. destructible materials of plastic material or rubber
    • 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
    • B29C67/00Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/24Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 characterised by the choice of material
    • 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
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/34Layered products comprising a layer of synthetic resin comprising polyamides
    • 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
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/36Layered products comprising a layer of synthetic resin comprising polyesters
    • 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
    • B32B2262/00Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02Synthetic macromolecular fibres
    • B32B2262/0261Polyamide fibres
    • 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
    • B32B2262/00Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02Synthetic macromolecular fibres
    • B32B2262/0276Polyester fibres
    • 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
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/70Other properties
    • B32B2307/732Dimensional properties
    • B32B2307/734Dimensional stability
    • 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
    • B32B2309/00Parameters for the laminating or treatment process; Apparatus details
    • B32B2309/02Temperature
    • 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
    • B32B2309/00Parameters for the laminating or treatment process; Apparatus details
    • B32B2309/04Time
    • 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
    • B32B2319/00Synthetic rubber

Definitions

  • the present invention relates to the production of manufactured slabs composed of a granulate or fine particles of stone material bonded with a hardening resin and, more specifically, to an improvement to the production process therefor.
  • slabs are produced using a method in which a mixture composed of granulate material of selected particle size and synthetic resin is deposited in metered quantities on a conveyor belt which is advanced to a forming station (in which it is subjected to a vacuum compaction operation with simultaneous application of a vibratory movement of predetermined frequency) and subsequently to a station for hardening of the resin (preferably by means of the action of a catalyst and/or heat).
  • the upper surface of the mixture deposited on the conveyor belt is covered with a sheet or layer of protective material, which prevents the pressing ram from being soiled by the mixture.
  • this sheet of protective material was made of paper, the use of which, however, was accompanied by certain secondary problems subsequent to the actual production process, but nonetheless of considerable importance.
  • An improvement was subsequently introduced (described and claimed in Italian patent application No. TV96A000007 filed on 29 January 1996), according to which the paper layer or sheet is replaced by a sheet of resilient material, preferably rubber.
  • the rubber sheet can be removed, by means of tearing, from the surface of the finished slab and subsequently reused.
  • the support on which the mixture is deposited before being transferred to the vacuum and vibration compacting station is also protected by a similar sheet of resilient material, in particular rubber.
  • the mixture deposited on the support and enclosed between the two rubber sheets is in the form of a slab, at the edges of which the two protective rubber sheets are joined together by overlapping their respective edges, substantially completely so as to enclose the raw slab which has been formed but not yet subjected to the resinous binder hardening step. Since during compaction a portion of the mixture, albeit minimal, inevitably forms a bun- interposed between the two edges, after the resinous binder hardening step this burr forms incrustations on the rubber sheets, which are difficult to remove.
  • the flat configuration of the lower sheet is replaced by a shaped configuration, comprising a flat base and a peripheral border projecting from said flat base over a predetermined height which is smaller by a predetermined amount than the height of the final slab to be produced, so that, after the compaction step, a gap of a predetermined thickness remains between the peripheral edge of the upper sheet and the top of the aforementioned border.
  • the excess mixture material penetrates into this gap of predetermined thickness during the vacuum vibration compacting step and this material then remains attached to the edge of the slab during the hardening step.
  • the final slab is released by tearing off the two rubber sheets, a hardened raw slab is obtained, said slab having peripherally a border of hardened material which can easily be removed during the normal finishing operations for a slab of stone material.
  • Patent application No. TV97A000146 also describes and claims a specific structure of the rubber sheet, in particular the lower sheet, to which the peripheral border is attached, said border defining the cavity for initial deposition of the metered quantity of mixture.
  • the said structure consists of two or more layers, usually four layers, such as: a first layer of rubber (VRF, EPM, PU) a first cloth or fabric of non-deformable material (Kevlar, polyester, nylon, aramide) a second layer of rubber (EPM, NBR) a second cloth or fabric of non-deformable material.
  • this cloth or fabric is subjected to preliminary treatments, such as a pretensioning treatment, to avoid subsequent hysteresis phenomena, a thermal stabilization, etc.
  • (d) possess optimal mechanical properties so as to contain the mixture without undergoing excessive deformations; undergo minimal shrinkage after forming so as to prevent the formation of surface irregularities in the final product; a good heat conductivity in order to favour the hardening of the slab.
  • the most suitable are of a polymeric type resistant to temperature and to chemical agents, usually not for sulphur vulcanization, in particular synthetic rubbers known as EPM (ethylene and propylene copolymers), VKF (fluorocarbon rubbers) and PU (polyurethane rubbers).
  • EPM ethylene and propylene copolymers
  • VKF fluorocarbon rubbers
  • PU polyurethane rubbers
  • the final product has surface corrugations, as a result of the shrinkage of the material during the cooling phase and the - albeit minimal - residual elasticity of the rubber.
  • Figure 1 coincides with Fig. 3 of Italian application No. TV97A000148, illustrating therefore the structure of the rubber sheets which was used in the previously mentioned method
  • Figure 2 is a view, similar to that of Figure 1, of the composite structure in accordance with the present invention.
  • Figure 3 is an enlarged cross-sectional view of the composite structure of the present invention corresponding to position A in Fig. 2.
  • Figure 1 corresponds to Figure 3 of Italian patent application No. TV97A000148, which should be referred to for a detailed description.
  • the starting mixture 130 is deposited in a cavity defined by a lower sheet 120 and by an upper or covering sheet 132.
  • a perimetral border 120A is attached to the lower sheet 120.
  • the sheet 120 has a composite structure consisting of a lower sheet of rubber 120 having a flat basis 120B and an inclined peripheral border 120A, a layer 120M of substantially inextensible cloth or fabric (such as Kevlar, polyester or nylon) is embedded and an upper sheet of rubber 132 which is spaced from the said border 120A through a gap 100 of a predetermined thickness along its peripheral edge 132A.
  • the end portion 120E of the slab which is enclosed between the inclined surface 120C and a vertical cross-section defined by the line 120D, is the scrap material to be removed at a subsequent step of the manufacturing process.
  • References X and S designate the thickness of the said peripheral border 120 A resp. of the mixture 130.
  • the sheet 120 comprises two layers of rubber 220A and 220B, between which the layer of inextensible cloth or fabric 220M is interposed.
  • the rubber of the layers 220A and B is an EPM rubber which is vulcanised by means of a peroxide using a known method.
  • the selected rubber preferably has the following characteristics:
  • Heat resistance 170°C The rubber is worked in such a way to achieve a maximum controlled planarity of 0.5 mm per linear metre, reaching the overall thickness of 4 mm.
  • the cloth or fabric of the layer 220M preferably is of the type comprising a weft of polyamide or nylon and a warp of polyester, and is pretensioned in both directions (both weft and warp).
  • a second layer of cloth or fabric 220N having the same characteristics as the layer 220M is added underneath the rubber layer 220B.
  • the composite sheet, thus formed, is preferably subjected to a stabilising treatment prior to use, consisting of heating for a few hours (generally from 1 to 3 hours) to a temperature higher than the maximum operating temperature, so that, in the present method (in which resin hardening takes place at a temperature in the region of 150°C), the stabilising temperature is in the region of 160°C (for approximately 2 hours).
  • a stabilising treatment consisting of heating for a few hours (generally from 1 to 3 hours) to a temperature higher than the maximum operating temperature, so that, in the present method (in which resin hardening takes place at a temperature in the region of 150°C), the stabilising temperature is in the region of 160°C (for approximately 2 hours).
  • both the lower sheet 220 and the upper sheet should have the same structure, so as to guarantee perfect homogeneity of thermal exchange with the mixture contained in the "sheath" defined by the two - upper and lower - rubber sheets.
  • the lower cloth 220N also favours the handling of said sheath containing the mixture through the various stations of the slab production plant.
  • the compressive strength or rather the resistance to extreme loads of the moulding sheath is increased, preventing the appearance of wrinkles on the surfaces of the product.

Abstract

Two rubber sheets are used in the production of slabs of granulate or fine particles of stone material bonded with hardening resin, one of said sheets, the lower one, being provided with a border delimiting the cavity for deposition of a metered quantity of mixture. At least the lower sheet and preferably both sheets have a structure consisting of two layers of EPM or VKF or PU rubber between which a layer of fabric or cloth of non-deformable material, such as polyamide or polyester, is interposed or inset and the outwardly directed surface of the sheet is composed of a similar layer of fabric or cloth. The composite sheet can be stabilised dimensionally by means of heat treatment at a temperature higher than the operating temperature.

Description

FABRIC REINFORCED RUBBER FOR SHEET FOR THE PRODUCTION OF SLABS OF RESIN HARDEND FINELY DIVIDED STONE MATERIAL
*****
The present invention relates to the production of manufactured slabs composed of a granulate or fine particles of stone material bonded with a hardening resin and, more specifically, to an improvement to the production process therefor.
These slabs are produced using a method in which a mixture composed of granulate material of selected particle size and synthetic resin is deposited in metered quantities on a conveyor belt which is advanced to a forming station (in which it is subjected to a vacuum compaction operation with simultaneous application of a vibratory movement of predetermined frequency) and subsequently to a station for hardening of the resin (preferably by means of the action of a catalyst and/or heat).
Upstream of the forming station, the upper surface of the mixture deposited on the conveyor belt is covered with a sheet or layer of protective material, which prevents the pressing ram from being soiled by the mixture.
In the past, this sheet of protective material was made of paper, the use of which, however, was accompanied by certain secondary problems subsequent to the actual production process, but nonetheless of considerable importance. An improvement was subsequently introduced (described and claimed in Italian patent application No. TV96A000007 filed on 29 January 1996), according to which the paper layer or sheet is replaced by a sheet of resilient material, preferably rubber.
In this way, upon completion of the resinous binder hardening step, the rubber sheet can be removed, by means of tearing, from the surface of the finished slab and subsequently reused. In the preferred embodiment, the support on which the mixture is deposited before being transferred to the vacuum and vibration compacting station is also protected by a similar sheet of resilient material, in particular rubber.
After the forming step, the mixture deposited on the support and enclosed between the two rubber sheets is in the form of a slab, at the edges of which the two protective rubber sheets are joined together by overlapping their respective edges, substantially completely so as to enclose the raw slab which has been formed but not yet subjected to the resinous binder hardening step. Since during compaction a portion of the mixture, albeit minimal, inevitably forms a bun- interposed between the two edges, after the resinous binder hardening step this burr forms incrustations on the rubber sheets, which are difficult to remove. Again in the previously know method, a separating liquid is applied to the two edges which are intended to mate, immediately before use on the production line, with the purpose of preventing this problem and also of reducing the chemical ageing of the rubber. In spite of these measures, however, operations to clean the two rubber sheets, and in particular the two mating edges, are still necessary. Italian patent application No. TV97A000146 in the name of the same Applicant describes further improvements aimed at preventing the formation of incrustations on the rubber sheets, which require laborious cleaning operations, and involving modifications both to the shaping of the protective rubber sheets and to the operating process. In the first place, the flat configuration of the lower sheet is replaced by a shaped configuration, comprising a flat base and a peripheral border projecting from said flat base over a predetermined height which is smaller by a predetermined amount than the height of the final slab to be produced, so that, after the compaction step, a gap of a predetermined thickness remains between the peripheral edge of the upper sheet and the top of the aforementioned border. The excess mixture material penetrates into this gap of predetermined thickness during the vacuum vibration compacting step and this material then remains attached to the edge of the slab during the hardening step.
When, after the resinous binder hardening step, the final slab is released by tearing off the two rubber sheets, a hardened raw slab is obtained, said slab having peripherally a border of hardened material which can easily be removed during the normal finishing operations for a slab of stone material.
Patent application No. TV97A000146 also describes and claims a specific structure of the rubber sheet, in particular the lower sheet, to which the peripheral border is attached, said border defining the cavity for initial deposition of the metered quantity of mixture. The said structure consists of two or more layers, usually four layers, such as: a first layer of rubber (VRF, EPM, PU) a first cloth or fabric of non-deformable material (Kevlar, polyester, nylon, aramide) a second layer of rubber (EPM, NBR) a second cloth or fabric of non-deformable material.
Preferably this cloth or fabric is subjected to preliminary treatments, such as a pretensioning treatment, to avoid subsequent hysteresis phenomena, a thermal stabilization, etc.
However, certain requirements remain in connection with the rubber sheets and must be satisfied in order to obtain optimum results. In short, these requirements correspond to the following characteristics which the rubber sheet must have: a resistance to heat and chemical agents so as to withstand operating temperatures which during the resin hardening step are in the region of 150°C; a good resistance to abrasion and tearing; (c) retain substantially unaltered properties over time;
(d) possess optimal mechanical properties so as to contain the mixture without undergoing excessive deformations; undergo minimal shrinkage after forming so as to prevent the formation of surface irregularities in the final product; a good heat conductivity in order to favour the hardening of the slab.
As regards the nature of the rubber, the most suitable are of a polymeric type resistant to temperature and to chemical agents, usually not for sulphur vulcanization, in particular synthetic rubbers known as EPM (ethylene and propylene copolymers), VKF (fluorocarbon rubbers) and PU (polyurethane rubbers). Even the use of the previously mentioned composite structure, consisting of a layer of cloth or fabric interposed in the rubber sheet and then embedded or inset therein, does not completely solve the problem.
In fact, even if the rubber sheet is in this way able to contain the mixture during the forming step without undergoing excessive deformation, the final product has surface corrugations, as a result of the shrinkage of the material during the cooling phase and the - albeit minimal - residual elasticity of the rubber.
It has now been discovered that all these problems can be completely and satisfactorily solved with a rubber sheet structure of the type comprising four layers of rubber between which a layer of non-deformable cloth or fabric is interposed, said structure being characterized in that the base of the composite sheet is completed with a second layer of cloth or fabric consisting of non-deformable material, which thereby constitutes the outwardly directed surface. The second layer of cloth or fabric also constitutes an outwardly directed surface which is suitable for being in contact with the oven surface. The specific aspects and advantages of the composite structure in accordance with the present invention will appear more clearly from the following description, with reference to the drawings in which:
Figure 1 coincides with Fig. 3 of Italian application No. TV97A000148, illustrating therefore the structure of the rubber sheets which was used in the previously mentioned method; Figure 2 is a view, similar to that of Figure 1, of the composite structure in accordance with the present invention; and
Figure 3 is an enlarged cross-sectional view of the composite structure of the present invention corresponding to position A in Fig. 2.
It can be seen that Figure 1 corresponds to Figure 3 of Italian patent application No. TV97A000148, which should be referred to for a detailed description.
It can be seen from this figure that the starting mixture 130 is deposited in a cavity defined by a lower sheet 120 and by an upper or covering sheet 132.
A perimetral border 120A, the inner surface of which has a predetermined inclination, is attached to the lower sheet 120. In Figure 1, the sheet 120 has a composite structure consisting of a lower sheet of rubber 120 having a flat basis 120B and an inclined peripheral border 120A, a layer 120M of substantially inextensible cloth or fabric (such as Kevlar, polyester or nylon) is embedded and an upper sheet of rubber 132 which is spaced from the said border 120A through a gap 100 of a predetermined thickness along its peripheral edge 132A. The end portion 120E of the slab, which is enclosed between the inclined surface 120C and a vertical cross-section defined by the line 120D, is the scrap material to be removed at a subsequent step of the manufacturing process. References X and S designate the thickness of the said peripheral border 120 A resp. of the mixture 130.
With reference now to the composite structure of the present invention, shown in Figures 2 and 3, using where possible the same references as in Figure 1 and making particular reference to
Figure 3, the sheet 120 comprises two layers of rubber 220A and 220B, between which the layer of inextensible cloth or fabric 220M is interposed.
As previously mentioned, the rubber of the layers 220A and B is an EPM rubber which is vulcanised by means of a peroxide using a known method. The selected rubber preferably has the following characteristics:
Density 1.05 g/cm3
Hardness 64 Shore (A)
Abrasion resistance 86 mm3
Heat resistance 170°C The rubber is worked in such a way to achieve a maximum controlled planarity of 0.5 mm per linear metre, reaching the overall thickness of 4 mm.
In turn, the cloth or fabric of the layer 220M preferably is of the type comprising a weft of polyamide or nylon and a warp of polyester, and is pretensioned in both directions (both weft and warp). As can be seen from Figure 3, a second layer of cloth or fabric 220N having the same characteristics as the layer 220M is added underneath the rubber layer 220B.
The composite sheet, thus formed, is preferably subjected to a stabilising treatment prior to use, consisting of heating for a few hours (generally from 1 to 3 hours) to a temperature higher than the maximum operating temperature, so that, in the present method (in which resin hardening takes place at a temperature in the region of 150°C), the stabilising temperature is in the region of 160°C (for approximately 2 hours).
The desired results can be obtained with the sheet structure in accordance with the present invention.
In particular, it is desirable that both the lower sheet 220 and the upper sheet should have the same structure, so as to guarantee perfect homogeneity of thermal exchange with the mixture contained in the "sheath" defined by the two - upper and lower - rubber sheets.
Moreover, the lower cloth 220N also favours the handling of said sheath containing the mixture through the various stations of the slab production plant.
In particular, it is worth noting that with the structure according to the present invention the compressive strength or rather the resistance to extreme loads of the moulding sheath is increased, preventing the appearance of wrinkles on the surfaces of the product.

Claims

1. Moulded rubber sheet structure for use in the process for production of slabs as above defined, of the type comprising two layers of rubber between which a layer of non-deformable cloth or fabric is interposed, characterized in that the base of the composite sheet is completed with a second layer of cloth or fabric of non-deformable material, which thereby constitutes the outwardly directed surface of the rubber sheet, said composite structure being moreover dimensionally stabilised by heating to a temperature in the region of 160°C.
2. Rubber sheet structure according to Claim 1, characterized in that said rubber is of the EPM or VKF or PU type.
3. Rubber sheet structure according to Claim 1, characterized in that the two - lower and upper - moulding sheaths have the same structure, as regards the homogeneity of heat transfer.
4. Rubber sheet structure according to Claim 1, characterized in that said cloths are formed by a polyester warp and a nylon weft.
5. Rubber sheet structure according to Claim 1, characterized in that said heating to a temperature in the region of 160°C is performed for 1-3 hours.
PCT/EP2000/011883 1999-12-06 2000-11-28 Fabric reinforced rubber for sheet for the production of slabs of resin hardend finely divided stone material WO2001042007A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
IL14382700A IL143827A (en) 1999-12-06 2000-11-28 Rubber sheet structure for use in the production of slabs of granulate or fine particles of stone material bonded with hardening resin
CA002357009A CA2357009C (en) 1999-12-06 2000-11-28 Rubber sheet structure for use in the production of slabs of granulate or fine particles of stone material bonded with hardening resin
US10/960,766 US7241710B2 (en) 1999-12-06 2004-10-07 Fabric reinforced rubber sheet for the production of slabs of resin hardened finely divided stone material

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1999TV000055U IT248137Y1 (en) 1999-12-06 1999-12-06 STRUCTURE OF RUBBER SHEET USEFUL IN THE MANUFACTURE OF GRANULATED SLABS OR SANDS OF STONE MATERIAL TIED WITH HARDENABLE RESIN
ITTV99U000055 1999-12-06

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US09868160 A-371-Of-International 2000-11-28
US10/960,766 Continuation-In-Part US7241710B2 (en) 1999-12-06 2004-10-07 Fabric reinforced rubber sheet for the production of slabs of resin hardened finely divided stone material

Publications (1)

Publication Number Publication Date
WO2001042007A1 true WO2001042007A1 (en) 2001-06-14

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PCT/EP2000/011883 WO2001042007A1 (en) 1999-12-06 2000-11-28 Fabric reinforced rubber for sheet for the production of slabs of resin hardend finely divided stone material

Country Status (5)

Country Link
CA (1) CA2357009C (en)
ES (1) ES2245139B2 (en)
IL (1) IL143827A (en)
IT (1) IT248137Y1 (en)
WO (1) WO2001042007A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006013589A1 (en) * 2004-08-05 2006-02-09 Dario Toncelli Tray-shaped mould made of a vulcanized composite material
ITTV20100141A1 (en) * 2010-10-25 2012-04-26 Luca Toncelli MOLD FOR THE MANUFACTURE OF AGGLOMERATED MATERIAL SHEETS
IT202000016273A1 (en) * 2020-07-06 2022-01-06 Siti B & T Group Spa EQUIPMENT FOR THE CREATION OF SLABS IN CERAMIC MATERIAL

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4744843A (en) * 1983-11-03 1988-05-17 The Goodyear Tire & Rubber Company Release treatment using a non-reinforcing, non-woven fabric for conveyor belt curing
US5498470A (en) * 1992-07-23 1996-03-12 Day International, Inc. Printing blanket having improved dynamic thickness stability and method of making
WO1999021695A1 (en) * 1997-10-27 1999-05-06 Luca Toncelli Method of producing slabs of granulated stone materials and/or sand bound with a hardenable resin and a shaped sheet for the production concerned

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4744843A (en) * 1983-11-03 1988-05-17 The Goodyear Tire & Rubber Company Release treatment using a non-reinforcing, non-woven fabric for conveyor belt curing
US5498470A (en) * 1992-07-23 1996-03-12 Day International, Inc. Printing blanket having improved dynamic thickness stability and method of making
WO1999021695A1 (en) * 1997-10-27 1999-05-06 Luca Toncelli Method of producing slabs of granulated stone materials and/or sand bound with a hardenable resin and a shaped sheet for the production concerned

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006013589A1 (en) * 2004-08-05 2006-02-09 Dario Toncelli Tray-shaped mould made of a vulcanized composite material
ITTV20100141A1 (en) * 2010-10-25 2012-04-26 Luca Toncelli MOLD FOR THE MANUFACTURE OF AGGLOMERATED MATERIAL SHEETS
WO2012056359A1 (en) * 2010-10-25 2012-05-03 Luca Toncelli Mould for manufacturing slabs of agglomerate material
IT202000016273A1 (en) * 2020-07-06 2022-01-06 Siti B & T Group Spa EQUIPMENT FOR THE CREATION OF SLABS IN CERAMIC MATERIAL

Also Published As

Publication number Publication date
ITTV990055U1 (en) 2001-06-06
ES2245139B2 (en) 2007-03-16
CA2357009C (en) 2007-05-15
ES2245139A1 (en) 2005-12-16
IT248137Y1 (en) 2002-12-10
ITTV990055V0 (en) 1999-12-06
CA2357009A1 (en) 2001-06-14
IL143827A0 (en) 2002-04-21
IL143827A (en) 2005-06-19

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