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1. WO2020110015 - SIMPLIFIED METHOD OF RESIN-REINFORCEMENT OF A STONE BLOCK

Publication Number WO/2020/110015
Publication Date 04.06.2020
International Application No. PCT/IB2019/060210
International Filing Date 27.11.2019
IPC
B29C 70/44 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
70Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
04comprising reinforcements only, e.g. self-reinforcing plastics
28Shaping operations therefor
40Shaping or impregnating by compression
42for producing articles of definite length, i.e. discrete articles
44using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
B29C 70/34 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
70Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
04comprising reinforcements only, e.g. self-reinforcing plastics
28Shaping operations therefor
30Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
34and shaping or impregnating by compression
B29K 105/08 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D103
105Condition, form or state of moulded material
06containing reinforcements, fillers or inserts
08of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
B29K 709/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D103
709Use of inorganic materials not provided for in groups B29K703/-B29K707/106
B29K 67/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D103
67Use of polyesters as moulding material
B29K 63/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D103
63Use of epoxy resins as moulding material
CPC
B29K 2063/00
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
KINDEXING 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
2063Use of ; EP, i.e.; epoxy resins ; or derivatives thereof; , as moulding material
B29K 2067/06
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
KINDEXING 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
2067Use of polyesters ; or derivatives thereof; , as moulding material
06Unsaturated polyesters
B29K 2075/00
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
KINDEXING 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
2075Use of ; PU, i.e.; polyureas or polyurethanes ; or derivatives thereof; , as moulding material
B29K 2105/0872
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
KINDEXING 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
2105Condition, form or state of moulded material ; or of the material to be shaped
06containing reinforcements, fillers or inserts
08of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
0872Prepregs
B29K 2709/14
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
KINDEXING 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
2709Use of inorganic materials not provided for in groups ; B29K2703/00 - B29K2707/00; , for preformed parts, e.g. for inserts
14Stones
C04B 41/009
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
41After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
009characterised by the material treated
Applicants
  • GIRASOLE PIETRE NATURALI S.R.L. [IT]/[IT]
Inventors
  • ZANTEDESCHI, Pierangelo
Agents
  • MAROSCIA, Antonio
Priority Data
10201800001061327.11.2018IT
Publication Language English (EN)
Filing Language Italian (IT)
Designated States
Title
(EN) SIMPLIFIED METHOD OF RESIN-REINFORCEMENT OF A STONE BLOCK
(FR) PROCÉDÉ SIMPLIFIÉ DE RENFORCEMENT PAR RÉSINE D'UN BLOC DE PIERRE
Abstract
(EN)
A simplified method of resin-reinforcement of a block (1) of stone material, such as marble, granite, onyx, and other similar natural materials having surface cracks and/or defects (D), the method comprising the steps of a) providing a sheet (2) of flexible waterproof plastic material on a base (3) and placing a block (1) to be resin-reinforced on said sheet (2), b) applying a layer (4) of a flexible heat-shrink material pre-impregnated with resin (R) to one or more walls of the block (1); c) folding the sheet (2) on the walls of the block (1) wrapped in the layer (4) made of pre-impregnated material, to form a hermetically sealed container (7) around the block (1), d) heating the block (1) in the container (7) to a predetermined temperature (T) to melt and/or fluidize the resin (R), e) maintaining the predetermined temperature (T) for a predetermined time (t) to urge the melted resin (R) into the cracks and/or defects (D) of the block (1) due to the effect of heat and shrinking of the flexible heat-shrink layer (4), f) cooling the block (1) until the resin (R) is at least partially cured, and g) removing the resin-reinforced block (1) from the container (7).
(FR)
La présente invention concerne un procédé simplifié de renforcement par résine d'un bloc (1) de matériau en pierre, tel que du marbre, du granit, de l'onyx, et d'autres matériaux naturels similaires ayant des fissures de surface et/ou des défauts (D), le procédé comprenant les étapes consistant à a) fournir une feuille (2) de matière plastique souple imperméable à l'eau sur une base (3) et placer un bloc (1) destiné à être renforcé par une résine sur ladite feuille (2), b) appliquer une couche (4) d'un matériau thermorétractable souple pré-imprégné de résine (R) sur une ou plusieurs parois du bloc, c) plier la feuille (2) sur les parois du bloc (1) enroulé dans la couche (4) en matériau pré-imprégné, pour former un récipient hermétiquement fermé (7) autour du bloc (1), d) chauffer le bloc (1) dans le récipient (7) à une température prédéfinie (t) pour faire fondre et/ou fluidiser la résine (R), e) maintenir la température prédéfinie (T) pendant un temps prédéfini (t) pour pousser la résine fondue (R) dans les fissures et/ou défauts (D) du bloc (1) en raison de l'effet de la chaleur et du rétrécissement de la couche flexible thermorétractable (4), f) refroidir le bloc (1) jusqu'à ce que la résine (R) soit au moins partiellement durcie, et g) retirer le bloc renforcé par résine (1) du récipient (7).
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