WO1996033850A1 - The method of production of interior-lining articles from gypsum containing materials. form for production of interior-lining articles - Google Patents

The method of production of interior-lining articles from gypsum containing materials. form for production of interior-lining articles Download PDF

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Publication number
WO1996033850A1
WO1996033850A1 PCT/RU1995/000237 RU9500237W WO9633850A1 WO 1996033850 A1 WO1996033850 A1 WO 1996033850A1 RU 9500237 W RU9500237 W RU 9500237W WO 9633850 A1 WO9633850 A1 WO 9633850A1
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WO
WIPO (PCT)
Prior art keywords
die
article
para
interior
articles
Prior art date
Application number
PCT/RU1995/000237
Other languages
French (fr)
Inventor
Vladimir Grigorievich Yaschenko
Original Assignee
Yaschenko Vladimir Grigorievic
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 Yaschenko Vladimir Grigorievic filed Critical Yaschenko Vladimir Grigorievic
Priority to EP95937246A priority Critical patent/EP0813467A1/en
Priority to AU39410/95A priority patent/AU3941095A/en
Priority to UA96114327A priority patent/UA26290C2/en
Priority to DE0813467T priority patent/DE813467T1/en
Priority to PL95317459A priority patent/PL317459A1/en
Priority to EA199600042A priority patent/EA000226B1/en
Publication of WO1996033850A1 publication Critical patent/WO1996033850A1/en
Priority to BG101066A priority patent/BG62279B1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/0058—Moulds, cores or mandrels with provisions concerning the elimination of superfluous material; Moulds with burr-removing means provided therein or carried thereby
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
    • B28B13/02—Feeding the unshaped material to moulds or apparatus for producing shaped articles
    • B28B13/0215—Feeding the moulding material in measured quantities from a container or silo
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/34—Moulds, cores, or mandrels of special material, e.g. destructible materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/36—Linings or coatings, e.g. removable, absorbent linings, permanent anti-stick coatings; Linings becoming a non-permanent layer of the moulded article
    • B28B7/364—Linings or coatings, e.g. removable, absorbent linings, permanent anti-stick coatings; Linings becoming a non-permanent layer of the moulded article of plastic material or rubber

Definitions

  • the invention relates to the manufacturing process of interior-lining articles from gypsum and can be applied in manufacturing of building materials.
  • gypsum lining articles comprising preparation of moulding mixture, filling of the form, preliminarily laid with a liner-die, keeping the mixture till its total hardening, dismantling of forms of the article and the liner, the liner separation, drying and finishing of the article.
  • the die-form for manufacture of building articles with embossed pattern containing polymeric film and filler.
  • the polymeric film is performed antiadhesive
  • the filler is made of cement-sandy concrete containing 10-20 per cent of ferro-magnets (Inventor's Certificate of the USSR 841983 cl.B 28B 11/00,1981).
  • the die is made after the model with assigned embossed pattern, first as an open volume, repeating the model form, then the volume in turned over position, embossed pattern down, is filled with composition consisting of concrete compound and ferromagnetic elements, after the concrete is hardened, the volume is covered with flat film and the die is used in shaping building articles.
  • An aim is put to work out a method of manufacturing high-artistic interior-lining gypsum articles with embossed pattern, for instance, tiles with face surface of increased hardness and water-repellence, posessing high tecnological adapatability to manufacture and simplicity of manufacture, failing to require complicated production equipment, also to design a form providing for high technology of the manufacturing process of articles in great selection.
  • the above aim is accomplished by the method of manufacturing of interior-lining gypsum articles com prising preparation of moulding compound, filling it it into the form, which is layed preliminarily with a a liner-die and keeping it till its absolute hardening dismantling of forms of the article with its liner, the liner separation, drying and finishing of the article,the compound is filled into the form in excess quantity, then it is covered with an air-tight lid, then shaked and after the article is finished it is treated with water-repel ling compound.
  • the result is achieved by the method when the form for interior-lining articles comprising a tray, lengthwise and transverse edges and a removable die with embossed pattern is made as a whole with embossed pattern on the tray, and a volumetric-spatial polymeric liner is used as a die, which is congruent to the working surface of the form and furnished with collars housed on the form edges and embracing them on the outside along the form hight, and the form is provided with a detachable air-tight lid,which can rest on the collars.
  • nitro-enamel paint is applied as a water-resising compound.
  • the mixture is filled into the form in quantity by 15-20 % excessing the volume of the form.
  • the form is made of quickly-hardening compound by means of filling it into the overturned die set on its foundation.
  • the form is made of gypsum.
  • the die is performed of sheet plastics or heat- resistent polymeric film, and the air-tight lid - of thick sheet glass corrugated in- derneath.
  • the form for casting articles is performed in the following way: the die is filled from reverse with a quickly-hardening compound kept till total hardening, the received form is used as a form-tray.
  • One of the variants is production of the form-tray of the same material that is used for production of tiles, that is gypsum.
  • Nitro-enamel paint may be used as a water-repelling material to coat the article face. When filling up the form with shaping mass the excess volume of the mass may make a 15-20 %.
  • the variants of die per forming it can be used sheet plastics or heat-re- sistent polymer film.
  • the air-tight lid for the form can be made of thick sheet glass, corrugated underneath.
  • the disclosed technical actions permit to organize the manufacture of fine and high-artistic interiorlining articles on various gypsum stringy materials including gypsum cement and others by the easiest method not requiring complicated equipment, practically in any home conditions with minimum expenses.
  • the form-tray I is made as a whole with lengthwise and transverse edges 2 and provided with a die embossed pattern 3.
  • the collars 5 rest on the edges of the tray 1 and embrace from outside the edges 2 along the night to the base. From above the collars 5 of the die 4 are pressed to the edges 2 of the tray-form 1 by the air-tight lid, when casing a standard lining plate with embossed pattern the working volume of the tray-form 1 can have dimensions, for example, 148x148x8.5 mm.
  • the die-liner can be made, for instance, from the sheet or film plasticized material with smooth, dense, antiadhesive surface (polysterene, fluoroplastic, polypropylene, oilcloth, thermoshrinking polyethylene film, etc).
  • the most acceptable materials as regards to the proproduction process and availability are plastics, type IIXB and II374.
  • the corrugated pattern on plastics is performed, for instance, by means of pressing.
  • the tray-form it can be used any easily fusible alloy, such as Wood's alloy, for example, or lead, in case the die is made of heat resistent material.
  • the easiest and most acceptable version is the appliance of gypsum materials, that is, the same materials, which are used for production of gypsum lining articles.
  • the air-tight lid is made of thick sheet glass with corrugated surface underneath.
  • the disclosed form is prepared in the following way.
  • the die 4 with corrugated pattern on it is set in turned over position on sand, filled from the rear side with gypsum composition, diluted with water, thickened by pressing onto the forming mass by glass lid 6 and by means of shaking and the mass is kept till absolute hardening.
  • the received blank is coated with drying oil, paint or varnish and used as a tray-form for the die 4 when producing facing tile.
  • the disclosed method of the form production permits to receive the die corrugated pattern on the tray.
  • the volumetric-spatial form of a thin linerdie with antiadhesive surface is congruent to the tray working surface and while filling the forming stuff into this form the liner-die completely fits to the working surface of the tray-form and is relieved from the weight loads of the forming mass. Therefore in the production process of tiles the liner-die prac tically isn't submitted to wear and serves for manufacturing of a great number of articles without renewing that makes cheaper the process of tile production.
  • the disclosed method of production of interier-lining articles with corrugated pattern, such as tile, ceiling, wall or corner borders, ash-trays, supports, etc., from gypsum material is realized in the following way: dry components: gypsum binding material and additions are mixed for example, with water, this forming mass is filled in excess volume into the form, the excess volume being within 15-20 per cent.
  • the forming mass in the form undergoes to thickening in two ways: squeezing the air-tight lid-glass 6 by pressing it tight to the collars 5 of the die and at the same time to the edges 2 of the tray-form and shaking recurretly the closed filled form.
  • the close fitting of the glass to the die ensures air-tight conditions required for phase transformation of gypsum in the form, thickening of the texture.
  • the corrugated face surface of the glass inderneath provides for some roughness of the surface on the rear side of the article insuring improved adhesion when fixing it to the base using traditional glue solutions.
  • the die- liner with hard antiadhesive surface ensures dense and smooth surface face of the article, not requiring further polishing.
  • the filled form is dismantled by removing the lid-glass, the article together with the die-liner is taken out of the form, then the die is taken off the article, casting barbs are removed, and the the blank is being dried for 20-24 hours.
  • the face surface is coated with any water-repelling compound, for example, with nitro-enamel, type HII.,after the paint has dried the article is covered with decorative colouring.
  • the disclosed method of production of interior-lining gypsum articles and the form for production of interior-lining articles are industrially realized, characterized by high adaptability to manufacturing and simplicity, features with novelty and invention level comparing to prior art methods, i.e. they satisfy the terms and conditions of patentability.

Abstract

The invention refers to a method and a form for manufacturing interior-lining articles from gypsum materials. The method is characterized by filling a form with a gypsum composition in excess quantity and closing it with an air-tight lid (6). The form is then shaked and after taking the article out of the form, the article can be treated with a water-repellent compound. The form consists of a mould which has lengthwise and transverse edges (2) and is provided with a die embossed pattern (3) and inserted in the mould removable die-liner (4) with collars (5) and anti-adhesive surface.

Description

THE METHOD OF PRODUCTION OF INTERIOR- LINING ARTICLES FROM GYPSUM CONTAINING MATERIALS. FORM FOR PRODUCTION OF INTERIOR-LINING ARTICLES.
FIELD OF TECHNIQUE
The invention relates to the manufacturing process of interior-lining articles from gypsum and can be applied in manufacturing of building materials.
PRIOR LEVEL OF TECHNIQUE Known in the art is the method of manufacturing of gypsum lining articles comprising preparation of moulding mixture, filling of the form, preliminarily laid with a liner-die, keeping the mixture till its total hardening, dismantling of forms of the article and the liner, the liner separation, drying and finishing of the article.
As a liner of the die it is used cellophane film, preliminarily kept in water during 0.5-3 min under temperature of 30-50 deg C. This film treatment provides for decorative skin-like finish on the article surface (Inventor's Certificate of the USSR 564162 cl.B 28B 11/00, 1977).
Known in the art is the die-form for manufacture of building articles with embossed pattern, containing polymeric film and filler. The polymeric film is performed antiadhesive, the filler is made of cement-sandy concrete containing 10-20 per cent of ferro-magnets (Inventor's Certificate of the USSR 841983 cl.B 28B 11/00,1981). The die is made after the model with assigned embossed pattern, first as an open volume, repeating the model form, then the volume in turned over position, embossed pattern down, is filled with composition consisting of concrete compound and ferromagnetic elements, after the concrete is hardened, the volume is covered with flat film and the die is used in shaping building articles.
Known also in the art is the form for production of articles with embossed pattern comprising a tray, detachable linear and transversal edges and a detachable die (Inventor's Certificate of the USSR 903903120 ck.B28B 11/08, 1982).
SUBSTANCE OF THE INVENTION
An aim is put to work out a method of manufacturing high-artistic interior-lining gypsum articles with embossed pattern, for instance, tiles with face surface of increased hardness and water-repellence, posessing high tecnological adapatability to manufacture and simplicity of manufacture, failing to require complicated production equipment, also to design a form providing for high technology of the manufacturing process of articles in great selection.
The above aim is accomplished by the method of manufacturing of interior-lining gypsum articles com prising preparation of moulding compound, filling it it into the form, which is layed preliminarily with a a liner-die and keeping it till its absolute hardening dismantling of forms of the article with its liner, the liner separation, drying and finishing of the article,the compound is filled into the form in excess quantity, then it is covered with an air-tight lid, then shaked and after the article is finished it is treated with water-repel ling compound.
Also the result is achieved by the method when the form for interior-lining articles comprising a tray, lengthwise and transverse edges and a removable die with embossed pattern is made as a whole with embossed pattern on the tray, and a volumetric-spatial polymeric liner is used as a die, which is congruent to the working surface of the form and furnished with collars housed on the form edges and embracing them on the outside along the form hight, and the form is provided with a detachable air-tight lid,which can rest on the collars.
In this case nitro-enamel paint is applied as a water-resising compound.
In this case the mixture is filled into the form in quantity by 15-20 % excessing the volume of the form.
In this case the form is made of quickly-hardening compound by means of filling it into the overturned die set on its foundation.
In this case the form is made of gypsum.
In this case the die is performed of sheet plastics or heat- resistent polymeric film, and the air-tight lid - of thick sheet glass corrugated in- derneath.
The form for casting articles is performed in the following way: the die is filled from reverse with a quickly-hardening compound kept till total hardening, the received form is used as a form-tray. One of the variants is production of the form-tray of the same material that is used for production of tiles, that is gypsum. Nitro-enamel paint may be used as a water-repelling material to coat the article face. When filling up the form with shaping mass the excess volume of the mass may make a 15-20 %. In one of the variants of die per forming it can be used sheet plastics or heat-re- sistent polymer film. The air-tight lid for the form can be made of thick sheet glass, corrugated underneath.
The disclosed technical actions permit to organize the manufacture of fine and high-artistic interiorlining articles on various gypsum stringy materials including gypsum cement and others by the easiest method not requiring complicated equipment, practically in any home conditions with minimum expenses.
BRIEF DESCRIPTION OF DRAWINGS The substance of the invention is explained by the drawings, illustrating: Fig.1 - general view of the form for production of articles with embossed pattern from gypsym materials; Fig.2 - cross section of the general view on Fig.1.
The form-tray I is made as a whole with lengthwise and transverse edges 2 and provided with a die embossed pattern 3.
On the form-tray 1 there installed a removable dieliner 4 with a hard antiadhesive surface furnis- hed with collars 5. The collars 5 rest on the edges of the tray 1 and embrace from outside the edges 2 along the night to the base. From above the collars 5 of the die 4 are pressed to the edges 2 of the tray-form 1 by the air-tight lid, when casing a standard lining plate with embossed pattern the working volume of the tray-form 1 can have dimensions, for example, 148x148x8.5 mm.
DESCRIPTION OF PREFERRABLE TECHNICAL RELIZATION The die-liner can be made, for instance, from the sheet or film plasticized material with smooth, dense, antiadhesive surface (polysterene, fluoroplastic, polypropylene, oilcloth, thermoshrinking polyethylene film, etc). The most acceptable materials as regards to the proproduction process and availability are plastics, type IIXB and II374. The corrugated pattern on plastics is performed, for instance, by means of pressing. For the tray-form it can be used any easily fusible alloy, such as Wood's alloy, for example, or lead, in case the die is made of heat resistent material. However, the easiest and most acceptable version is the appliance of gypsum materials, that is, the same materials, which are used for production of gypsum lining articles. The air-tight lid is made of thick sheet glass with corrugated surface underneath.
The disclosed form is prepared in the following way. The die 4 with corrugated pattern on it is set in turned over position on sand, filled from the rear side with gypsum composition, diluted with water, thickened by pressing onto the forming mass by glass lid 6 and by means of shaking and the mass is kept till absolute hardening. Then the received blank is coated with drying oil, paint or varnish and used as a tray-form for the die 4 when producing facing tile. The disclosed method of the form production permits to receive the die corrugated pattern on the tray. In the case disclosed the volumetric-spatial form of a thin linerdie with antiadhesive surface is congruent to the tray working surface and while filling the forming stuff into this form the liner-die completely fits to the working surface of the tray-form and is relieved from the weight loads of the forming mass. Therefore in the production process of tiles the liner-die prac tically isn't submitted to wear and serves for manufacturing of a great number of articles without renewing that makes cheaper the process of tile production.
The disclosed method of production of interier-lining articles with corrugated pattern, such as tile, ceiling, wall or corner borders, ash-trays, supports, etc., from gypsum material is realized in the following way: dry components: gypsum binding material and additions are mixed for example, with water, this forming mass is filled in excess volume into the form, the excess volume being within 15-20 per cent. The forming mass in the form undergoes to thickening in two ways: squeezing the air-tight lid-glass 6 by pressing it tight to the collars 5 of the die and at the same time to the edges 2 of the tray-form and shaking recurretly the closed filled form. The close fitting of the glass to the die ensures air-tight conditions required for phase transformation of gypsum in the form, thickening of the texture. The corrugated face surface of the glass inderneath provides for some roughness of the surface on the rear side of the article insuring improved adhesion when fixing it to the base using traditional glue solutions.
The die- liner with hard antiadhesive surface ensures dense and smooth surface face of the article, not requiring further polishing. After keeping the mass in the form during 10-15 minutes till its total hardening, the filled form is dismantled by removing the lid-glass, the article together with the die-liner is taken out of the form, then the die is taken off the article, casting barbs are removed, and the the blank is being dried for 20-24 hours. After drying the face surface is coated with any water-repelling compound, for example, with nitro-enamel, type HII.,after the paint has dried the article is covered with decorative colouring.
The disclosed method of production of interior-lining gypsum articles and the form for production of interior-lining articles are industrially realized, characterized by high adaptability to manufacturing and simplicity, features with novelty and invention level comparing to prior art methods, i.e. they satisfy the terms and conditions of patentability.

Claims

1. The method of production of interior-lining articles from gypsum containing material, comprising preparation of forming composition, filling of the form with composition,preliminarily laid with liner-die and keeping the mass till its total hardening, dismantling of the article together with the liner of the form, the liner separation, drying and face finishing of the article, characterized in that the composition in excess quantity is filled into the form, then closed with an airtight lid, shaked, and after face finish the article is treated with water-repellent compound.
2. The method as per para 1 is characterized in that as a water-repellent compound it is used nitro-enamel paint.
3. The method as per para 1 is characterized in that the mixture is filled into the form in quantity exceeding its volume by 15-20 %.
4. The form for production of interior-lining articles, containing a tray, lengthwise and transverse edges and a removable die with corrugated pattern is characterized in that the form is made as a whole with corrugated pattern on the tray, and as a die it is used a volumetric-spatial polymeric liner congruent to the working surface of the form and furnished with collars housed on the form edges embracing the edges from outside along the form hight, and the form is furnished with a removable air-tight lid, performed to rest on the collars.
5. The form as per para 4 is characterized in that it is made of quick-hardening composition by filling it into the overturned die set on its base.
6. The form as per para 4 is characterized in that it is made of gypsum.
7. The form as per para 4 is characterized in that the die is fulfilled of sheet plastics.
8. The form as per para 4 is characterized in that the die is fulfilled of heat-resistent polymeric film.
9. The form as per para 4 is characterized in that the air-tight lid is made of thick sheet glass corrugated from underneath.
AMENDED CLAIMS
[received by the International Bureau on 28 August 1996 (28.08.96); original claims 1-9 replaced by amended claims 1-7 (2 pages)]
1. The method of construction of interior-lining articles from plaster-containing materials including the process of placing the die with embossed pattern into a form, filling with moulding composition, keeping the mass till its complete hardening and taking out the article is CHARACTERIZED in that the moulding composition is filled in the form in excess quantity, it undergoes to double thickening: by pressing the air-tight lid onto excess moulding composition coming out of the formd, and after the form is closed completely, by repeated shaking up, the article, upon having hardened, is taken nut of the form by turning it over, then the article is being dried.
2 . The method under para 1 DISTINGUISHES in that the moulding composition is filled in the form exceeding in its volume the volume of the form itself by 15 20%.
3. The method under para 1 DISTINGUISHES in that the face side of the article is treated with water-repel lent compound.
4. The method under para 1 - 2 DISTINGUISHES in that as a water-repellent compound it is used nitro-enamel paint.
5. The form for construction of interior-linining articles consisting of a mould with prominent edges and embossed pattern on its bottom, the geometry of which corresponds to that of the reverse side of the removable die, placed into the mould,the die performed in the shape of a thin volumetric-spatial polymeric stuffing furnished with collars, CHARACTERIZED in that the die collars are placed along the horizontal surface of the mould edges and made embracing them from outside for the whole height to the base, and a removable hermetic lid is placed on top of them, and the stuffing is made of a heat-resistant sheet billet or a film with hard anti-adhesive surface,
6. The form under para 5 DISTINGUISHES in that the mould is fulfilled from a quickly-hardening compound identical to that of the moulding composition for an article filled in the overturned die set on a rigid base,
7, The form under para 5-6 is CHARACTERIZED in that the air-tight lid is lade of thick sheet glass embossed underneath.
PCT/RU1995/000237 1995-04-28 1995-11-09 The method of production of interior-lining articles from gypsum containing materials. form for production of interior-lining articles WO1996033850A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP95937246A EP0813467A1 (en) 1995-04-28 1995-11-09 The method of production of interior-lining articles from gypsum containing materials. form for production of interior-lining articles
AU39410/95A AU3941095A (en) 1995-04-28 1995-11-09 The method of production of interior-lining articles from gy psum containing materials. form for production of interior-l ining articles
UA96114327A UA26290C2 (en) 1995-04-28 1995-11-09 METHOD OF MANUFACTURE OF INTERIOR-COVERING PRODUCTS FROM PLASTER-MIXED MATERIALS AND FORM FOR MANUFACTURE OF INTERIOR-FACING MATERIALS
DE0813467T DE813467T1 (en) 1995-04-28 1995-11-09 METHOD AND FORM FOR THE PRODUCTION OF INTERIOR COVERING COMPONENTS FROM MATERIALS CONTAINING PLASTER
PL95317459A PL317459A1 (en) 1995-04-28 1995-11-09 Method of making gypsum containing products for lining internal walls of building and mould for making such products
EA199600042A EA000226B1 (en) 1995-04-28 1996-04-19 Method of producing decorative and facing articles of gypsum containing materials and a mould therefor
BG101066A BG62279B1 (en) 1995-04-28 1996-12-18 Method for the manufacture of products for internal lining made of gypsum-containing materials, and moulds for their production

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU95106219 1995-04-28
RU95106219/03A RU2087308C1 (en) 1995-04-28 1995-04-28 Method of manufacture of interior-facing gypsum products, mould for manufacture of interior-facing products

Publications (1)

Publication Number Publication Date
WO1996033850A1 true WO1996033850A1 (en) 1996-10-31

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Country Status (12)

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EP (1) EP0813467A1 (en)
CN (1) CN1052181C (en)
AU (1) AU3941095A (en)
BG (1) BG62279B1 (en)
DE (1) DE813467T1 (en)
EA (1) EA000226B1 (en)
HU (1) HU217313B (en)
PL (1) PL317459A1 (en)
RU (1) RU2087308C1 (en)
TR (1) TR199600353A2 (en)
UA (1) UA26290C2 (en)
WO (1) WO1996033850A1 (en)

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EA200101065A1 (en) * 2001-08-07 2002-06-27 Александр Юрьевич Баскаков FORM FOR CASTING OF FIGURED PRODUCTS FROM A CONCRETE MIXTURE AND A METHOD OF MANUFACTURING ELEMENTS OF A DRAINAGE SYSTEM WITH ITS USE
CN103029199B (en) * 2013-01-09 2014-12-31 上海高诚艺术包装有限公司 Production method of square ceramic product
CN108570886A (en) * 2017-04-21 2018-09-25 常州爱上学教育科技有限公司 In the paper pulp moulded packaging material of paper membrane Surface Creation glued membrane

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UA26290C2 (en) 1999-07-19
EP0813467A1 (en) 1997-12-29
HU217313B (en) 1999-12-28
HU9603549D0 (en) 1997-02-28
BG62279B1 (en) 1999-07-30
RU2087308C1 (en) 1997-08-20
BG101066A (en) 1997-12-30
EA199600042A2 (en) 1996-12-30
RU95106219A (en) 1996-04-10
AU3941095A (en) 1996-11-18
DE813467T1 (en) 1998-03-12
CN1152890A (en) 1997-06-25
CN1052181C (en) 2000-05-10
TR199600353A2 (en) 1996-11-21
PL317459A1 (en) 1997-04-14
EA199600042A3 (en) 1997-09-30
EA000226B1 (en) 1998-12-24
HUT75602A (en) 1997-05-28

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