WO2006061724A2 - Process for manufacture of sanitary ware acrylic plates, of synthetic granite, using cast system , with or without abs reinforcement - Google Patents
Process for manufacture of sanitary ware acrylic plates, of synthetic granite, using cast system , with or without abs reinforcement Download PDFInfo
- Publication number
- WO2006061724A2 WO2006061724A2 PCT/IB2005/050174 IB2005050174W WO2006061724A2 WO 2006061724 A2 WO2006061724 A2 WO 2006061724A2 IB 2005050174 W IB2005050174 W IB 2005050174W WO 2006061724 A2 WO2006061724 A2 WO 2006061724A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- called
- polymerization
- mould
- plates
- abs
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 67
- 230000008569 process Effects 0.000 title claims abstract description 66
- 239000010438 granite Substances 0.000 title claims abstract description 41
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 34
- 230000002787 reinforcement Effects 0.000 title claims abstract description 19
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 title abstract description 23
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 54
- 239000000203 mixture Substances 0.000 claims abstract description 29
- 238000009472 formulation Methods 0.000 claims abstract description 26
- 238000001816 cooling Methods 0.000 claims abstract description 13
- 238000002360 preparation method Methods 0.000 claims abstract description 12
- 239000002245 particle Substances 0.000 claims abstract description 9
- 238000007872 degassing Methods 0.000 claims abstract description 3
- 238000000227 grinding Methods 0.000 claims abstract description 3
- 239000002994 raw material Substances 0.000 claims description 15
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000003054 catalyst Substances 0.000 claims description 7
- 238000005406 washing Methods 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 101150038956 cup-4 gene Proteins 0.000 claims description 4
- 238000007689 inspection Methods 0.000 claims description 4
- 238000012856 packing Methods 0.000 claims description 4
- 239000000654 additive Substances 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 230000000996 additive effect Effects 0.000 claims 2
- 239000000126 substance Substances 0.000 claims 2
- 238000004132 cross linking Methods 0.000 claims 1
- 239000000047 product Substances 0.000 description 22
- 230000008901 benefit Effects 0.000 description 7
- 238000010420 art technique Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 239000011521 glass Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 238000000465 moulding Methods 0.000 description 5
- 238000005266 casting Methods 0.000 description 4
- 230000000295 complement effect Effects 0.000 description 3
- 230000036541 health Effects 0.000 description 3
- 239000013078 crystal Substances 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 229920005479 Lucite® Polymers 0.000 description 1
- 235000019329 dioctyl sodium sulphosuccinate Nutrition 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000485 pigmenting effect Effects 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/003—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor characterised by the choice of material
- B29C39/006—Monomers or prepolymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/10—Conditioning or physical treatment of the material to be shaped by grinding, e.g. by triturating; by sieving; by filtering
-
- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/0227—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using pressure vessels, e.g. autoclaves, vulcanising pans
-
- 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
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/02—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C39/12—Making multilayered or multicoloured articles
-
- 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
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/22—Component parts, details or accessories; Auxiliary operations
- B29C39/42—Casting under special conditions, e.g. vacuum
-
- 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
- B29C2791/00—Shaping characteristics in general
- B29C2791/001—Shaping in several steps
-
- 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
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C37/006—Degassing moulding material or draining off gas during moulding
-
- 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
- B29K2033/00—Use of polymers of unsaturated acids or derivatives thereof as moulding material
- B29K2033/04—Polymers of esters
- B29K2033/12—Polymers of methacrylic acid esters, e.g. PMMA, i.e. polymethylmethacrylate
-
- 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
- B29L2031/769—Sanitary equipment
Definitions
- This invention patent request is a
- the process for obtaining sanitary ware - synthetic granite type plates claimed herein also has the advantage of allowing placing a reinforcement element, of ABS type, during the plate assembly process itself, together with the PVC, for this situation the plates do not have any changes in their formulation.
- ABS reinforcements places in the sanitary ware - synthetic granite plates, allows products such as hydro-massage bathtubs, acrylic chairs among others, being thermoformed with the product, eliminating the need for applying resins, such as fiberglass and others, allowing gains in terms of productivity, reflected in the reduction of operation costs and also in the work health area, since the health damages produced by handling such products are of public knowledge.
- ABS reinforcement provides more strength to the final product after molding, not needing the application of any type of resin, it can also be considered that the same adds value in terms of final finish of the product, since the adhesion of the product (ABS) to the granite acrylic plates is perfect, conforming a single body, when for the process before the introduction of the reinforcement in posterior process there are adhesion problems and consequent premature depreciation of the product.
- the basic characteristic of the sanitary ware - synthetic granite (S.W.G.S) plates resulting from the process claimed herein is the act that these allow molding depths up to 1300 mm.
- the first known manufacture process of sanitary ware - synthetic granite (S.W.G.S) plates is called Continuous Cast system, developed by Du Pont company and currently belonging to LUCITE.
- MMA is received in bulk liquid, in lso tank or drum, stored in a tank or reservoir, specially prepared for this application.
- the production process of acrylic plates begins by pumping MMA into the reactor where it is heated up to 80 0 C, causing its pre-polymerization.
- the PVC cord maintains the liquid inside it and provides the desired thickness of the plate, varying according to the cord diameter.
- the glass moulds are duly filled, with pre-polymerized product, they are placed in an autoclave type equipment, hot water tank, or even in an oven, and then are polymerized to the acrylic plates by the "Casting" system.
- Each equipment used in the polymerization of the product demands a different process such as: formulation, thermal curve, pressure and also different polymerization time.
- the moulds with the already polymerized plates are removed from the equipment used for the polymerization and are cooled and then demoulded, passing at last by a quality inspection process for posterior packing.
- Acrylic plates in the basic form called crystal, and colored, may be such as described in the table: Table - Standard Formulation for Obtaining Acrylic Plates.
- the requester presents, in inedited format, a third process for obtaining the mentioned process, bringing advantages on the technical, operational and financial point of view not observed until the moment, the mentioned process maybe object of a privileged request, since it merits the requirements defined in the Industrial Property Law in force.
- Figure 2 is a flow diagram of the steps consisting the pre-polymerization stage of the manufacture process of acrylic sanitary ware plates claimed herein,
- Figure 3 is a flow diagram of the steps consisting the stage called first polymerization of the manufacture process of acrylic sanitary ware plates claimed herein
- Figure 4 is a flow diagram of the steps consisting the stage called second polymerization of the manufacture process of acrylic sanitary ware plates claimed herein
- Figure 5 is a flow diagram of the sub- steps consisting two possible realization formats for the step called second preparation of the mould provided in the stage called second polymerization of the manufacture process of acrylic sanitary ware plates claimed herein,
- Figure 6 is a thermal heating and cooling curve format representation of the first formulation, necessary for the stage called pre-polymerization of the manufacture process of acrylic sanitary ware plates claimed herein,
- Figure 7 is a thermal heating and cooling curve format representation of the second formulation, necessary for the stage called second polymerization of the manufacture process of acrylic sanitary ware plates claimed herein.
- A receiving raw material
- B store raw material
- D first polymerization
- E second polymerization
- F quality inspection
- G plate
- the first stage called receiving raw material (A) provides receiving the Methyl Metacrylate - MMA product, in liquid state, is received in bulk, in lso tank or drum.
- the second stage defines the storage of the Methyl Metacrylate - MMA product in a tank/reservoir, specially prepared for this application.
- a third stage, called pre-polymerization (C), is represented by the step flow, in figure 2, with the purpose of obtaining a first formulation necessary for the process claimed herein.
- This stage consists of a first step, called pumping raw material (C1 ), where the Methyl Metacrylate - MMA product is pumped in to a reactor type equipment. Once pumped, begins the second step, called raw material heating (C2), where the Methyl Metacrylate - MMA product is heated to 85°C, causing its pre-polymerization.
- C1 pumping raw material
- C2 raw material heating
- C3 a third step is provided, called adding other agents (C3), introducing agents such as catalysts, demoulding and other fundamental Additives for obtaining the synthetic granite plate.
- a last step of this stage may be represented as per table 1.
- PVC cord Maintains plate thickness.
- first polymerization (D) is represented by the step flow, in figure 3, with the purpose of obtaining a first polymerization necessary for the process claimed herein.
- the first step is called first preparation of the mould (D1 ), where the moulds, after passing by the washing system, are assembled placing a PVC cord with the function of assuring the thickness of the acrylic plate, used to close the glass blades consisting the mould for forming the plate.
- the second step is called mould filling
- the pressure indicated for the first polymerization stage (D) is about 6.0 kgf/cm 2 , according to a thermal curve, duly represented by the chart of temperature variation with time, in figure 6, showing an initial temperature of 50 0 C, and after one hour this increases to 12O 0 C, and is maintained constant until the end of the period with total time of five hours, after four hours begins the cooling step (D4) of the moulds and of the plates polymerized inside them, during this step the moulds with the acrylic plates obtained from the first polymerization are removed from the autoclave type equipment, for appropriate cooling.
- the obtained plates pass by the step of demoulding the plates (D5), where these are removed from the moulds, also cooled.
- the second formulation by the step of definition of the second formulation (D8), begins the stage called second polymerization (E), duly represented in figure 4, presenting a first step called second mould preparation (E1 ), which may present two distinct and possible procedures, which can be seen in figure 5.
- a first form of realization of the step called second mould preparation (E1 ) is called without ABS (E.1.1 ), not considering the use of ABS plates, defining the sub-steps for mould washing (E.1.1.1 ), placement of the PVC cord (E.1.1.2) and mould closing (E.1.1.3).
- a second form of realization of the step called second mould preparation (E1) is called with ABS (E.1.2) and considers using ABS plates, defining the sub-steps of mould washing (E.1.2.1 ), placing PVC cord (E.1.2.2), placing ABS plates (E.1.2.3) and mould closing (E.1.2.4), the use of ABS plates is justified for obtaining a better structured final product, stronger and with differentiated finish characteristic.
- step of the second mould preparation begins a second step called mould filling (E2), promoting the mix of the particles previously obtained in the step called particle selection (D7), still in the first polymerization stage (D), with the liquid (vehicle) previously polymerized, also with the formulations for granite.
- the step called mould filling (E2) is under a low temperature system with appropriate pressure were the liquid and the particles do not suffer hardening or quick polymerization, which demands a pre- determined low temperature.
- degassing removes all the air bubbles, which requires a vacuum system and also a vibrating system, for the particles to fill all the moulds.
- the next step is called polymerization (E4), where the moulds duly filled with the second formulation, are places inside autoclave type equipment, which are indispensable for obtaining synthetic granite by cast system, with the thermal curve varying with time, pressure and temperature.
- E4 polymerization
- the polymerization step (E4) follows a thermal curve, duly represented in the chart of temperature variation with time, presenting an initial temperature of 50 0 C, which is increased to 80 0 C, maintained during one hour, and then the temperature is increased to a 120 0 C level, and maintained at the same until the end of the four hour period, after which begins the process of cooling the same, this described condition may be seem best in the thermal curve chart, presented in figure 7, remembering that for this process to result in as appropriate product, the same requires two polymerization in autoclave.
- the pressure indicated for stage of the second polymerization process (E) is about 4.0 kgf/cm 2 .
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Thermal Sciences (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Moulding By Coating Moulds (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0611251A GB2424646A (en) | 2004-12-06 | 2005-01-14 | Process for manufacture of sanitary ware acrylic plates of synthetic granite, using cast system, with or without ABS reinforcement |
CN2005800015650A CN101065225B (en) | 2004-12-06 | 2005-01-14 | Process for manufacture of sanitary ware acrylic plates, of synthetic granite, using cast system, with or without ABS reinforcement |
DE112005000185T DE112005000185T5 (en) | 2004-12-06 | 2005-01-14 | Process for the production of synthetic granite acrylic sheets for sanitary ware using a casting system with or without ABS reinforcement |
JP2007543946A JP2008522855A (en) | 2004-12-06 | 2005-01-14 | Method for manufacturing acrylic granite for artificial granite sanitary products with or without ABS reinforcement using injection molding system |
US10/531,059 US20060255508A1 (en) | 2005-01-14 | 2005-01-14 | Process for manufacture of sanitary ware acrylic plates, of synthetic granite, using cast system with or without abs reinforcement |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BRPI0405430-0 | 2004-12-06 | ||
BRPI0405430 BRPI0405430A (en) | 2004-12-06 | 2004-12-06 | Manufacturing process of synthetic granite sanitary ware, using the cast system, which may or may not lead to the application of reinforcement in abs. |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2006061724A2 true WO2006061724A2 (en) | 2006-06-15 |
WO2006061724A3 WO2006061724A3 (en) | 2007-01-25 |
Family
ID=36578284
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2005/050174 WO2006061724A2 (en) | 2004-12-06 | 2005-01-14 | Process for manufacture of sanitary ware acrylic plates, of synthetic granite, using cast system , with or without abs reinforcement |
Country Status (5)
Country | Link |
---|---|
JP (1) | JP2008522855A (en) |
CN (1) | CN101065225B (en) |
BR (1) | BRPI0405430A (en) |
DE (1) | DE112005000185T5 (en) |
WO (1) | WO2006061724A2 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4929964B2 (en) * | 2006-10-12 | 2012-05-09 | 住友化学株式会社 | Manufacturing method of resin multilayer board |
CN111627338B (en) * | 2020-06-28 | 2021-09-21 | 武汉天马微电子有限公司 | Profiling module, manufacturing method of curved surface display screen and laminating system of curved surface display screen |
CN115071012B (en) * | 2022-07-22 | 2023-08-15 | 四川智研科技有限公司 | Plate electron beam curing method and device |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5047199A (en) * | 1987-01-29 | 1991-09-10 | Norsolor | Gasket for and method of casting polymer plates |
US5308425A (en) * | 1992-10-22 | 1994-05-03 | Aristech Chemical Corporation | Method of making crosslinked acrylic sheet with enhanced vacuum molding attributes |
EP0639539A1 (en) * | 1993-08-17 | 1995-02-22 | Röhm Gmbh | Process for manufacturing of highly filled mouldings from polymethylmethacrylnate |
US5415931A (en) * | 1990-08-27 | 1995-05-16 | Aristech Chemical Corporation | Acrylic-filled thermoformable acrylic sheet |
EP0734828A1 (en) * | 1995-03-27 | 1996-10-02 | Atohaas Holding C.V. | Process for producing a thermoformable acrylic resin sheet, thermoformable acrylic resin sheet and shaped article having a granit-like appearance which has been obtained by thermoforming such a sheet |
US5690872A (en) * | 1995-03-07 | 1997-11-25 | Roehm Gmbh Chemische Fabrik | Method for the production of highly filled polymethyl methacrylate based plastics |
DE19725984A1 (en) * | 1997-06-19 | 1998-12-24 | Kaldewei Franz Gmbh & Co | Production of abrasion- and scratch-resistant acrylic surfaces |
US6077575A (en) * | 1993-11-26 | 2000-06-20 | Aristech Acrylics Llc | Suspending accent particles in an acrylic matrix |
WO2003061937A1 (en) * | 2002-01-18 | 2003-07-31 | Lucite International Uk Limited | Acrylic cast sheet and process for its manufacture |
US20030213214A1 (en) * | 1999-11-08 | 2003-11-20 | Romala Stone, Inc. | Method of packaging and selling natural stone |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4085246A (en) * | 1975-06-18 | 1978-04-18 | E. I. Du Pont De Nemours And Company | Simulated granite and its preparation |
JPS6445408A (en) * | 1987-08-12 | 1989-02-17 | Tsutomu Nakao | Production of pattern-containing molded article of methacrylate polymer |
US4892700A (en) * | 1987-10-07 | 1990-01-09 | Polycast Technology Corporation | Process for making multilayered, formable laminates |
JP2941332B2 (en) * | 1990-02-08 | 1999-08-25 | 日泉化学株式会社 | Production method of resin plate by casting polymerization method and cell set for casting polymerization |
JP2001270780A (en) * | 2000-03-27 | 2001-10-02 | Ibiden Co Ltd | Jig for producing semiconductor |
-
2004
- 2004-12-06 BR BRPI0405430 patent/BRPI0405430A/en not_active Application Discontinuation
-
2005
- 2005-01-14 JP JP2007543946A patent/JP2008522855A/en active Pending
- 2005-01-14 CN CN2005800015650A patent/CN101065225B/en not_active Expired - Fee Related
- 2005-01-14 WO PCT/IB2005/050174 patent/WO2006061724A2/en active Application Filing
- 2005-01-14 DE DE112005000185T patent/DE112005000185T5/en not_active Ceased
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5047199A (en) * | 1987-01-29 | 1991-09-10 | Norsolor | Gasket for and method of casting polymer plates |
US5415931A (en) * | 1990-08-27 | 1995-05-16 | Aristech Chemical Corporation | Acrylic-filled thermoformable acrylic sheet |
US5308425A (en) * | 1992-10-22 | 1994-05-03 | Aristech Chemical Corporation | Method of making crosslinked acrylic sheet with enhanced vacuum molding attributes |
EP0639539A1 (en) * | 1993-08-17 | 1995-02-22 | Röhm Gmbh | Process for manufacturing of highly filled mouldings from polymethylmethacrylnate |
US6077575A (en) * | 1993-11-26 | 2000-06-20 | Aristech Acrylics Llc | Suspending accent particles in an acrylic matrix |
US5690872A (en) * | 1995-03-07 | 1997-11-25 | Roehm Gmbh Chemische Fabrik | Method for the production of highly filled polymethyl methacrylate based plastics |
EP0734828A1 (en) * | 1995-03-27 | 1996-10-02 | Atohaas Holding C.V. | Process for producing a thermoformable acrylic resin sheet, thermoformable acrylic resin sheet and shaped article having a granit-like appearance which has been obtained by thermoforming such a sheet |
DE19725984A1 (en) * | 1997-06-19 | 1998-12-24 | Kaldewei Franz Gmbh & Co | Production of abrasion- and scratch-resistant acrylic surfaces |
US20030213214A1 (en) * | 1999-11-08 | 2003-11-20 | Romala Stone, Inc. | Method of packaging and selling natural stone |
WO2003061937A1 (en) * | 2002-01-18 | 2003-07-31 | Lucite International Uk Limited | Acrylic cast sheet and process for its manufacture |
Also Published As
Publication number | Publication date |
---|---|
CN101065225B (en) | 2011-02-16 |
WO2006061724A3 (en) | 2007-01-25 |
DE112005000185T5 (en) | 2007-10-18 |
JP2008522855A (en) | 2008-07-03 |
BRPI0405430A (en) | 2005-05-31 |
CN101065225A (en) | 2007-10-31 |
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