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WO1990001470A1 - Simulated colored granite and process - Google Patents

Simulated colored granite and process Download PDF

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Publication number
WO1990001470A1
WO1990001470A1 PCT/US1989/003146 US8903146W WO9001470A1 WO 1990001470 A1 WO1990001470 A1 WO 1990001470A1 US 8903146 W US8903146 W US 8903146W WO 9001470 A1 WO9001470 A1 WO 9001470A1
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WO
WIPO (PCT)
Prior art keywords
weight
methyl methacrylate
article
particles
matrix
Prior art date
Application number
PCT/US1989/003146
Other languages
French (fr)
Inventor
Gin Guei H. Ebnesajjad
Original Assignee
E.I. Du Pont De Nemours And Company
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 E.I. Du Pont De Nemours And Company filed Critical E.I. Du Pont De Nemours And Company
Publication of WO1990001470A1 publication Critical patent/WO1990001470A1/en
Priority to GB9006478A priority Critical patent/GB2230529B/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B14/00Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02Granular materials, e.g. microballoons
    • C04B14/36Inorganic materials not provided for in groups C04B14/022 and C04B14/04 - C04B14/34
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B44DECORATIVE ARTS
    • B44FSPECIAL DESIGNS OR PICTURES
    • B44F9/00Designs imitating natural patterns
    • B44F9/04Designs imitating natural patterns of stone surfaces, e.g. marble
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B26/00Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
    • C04B26/02Macromolecular compounds
    • C04B26/04Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B26/06Acrylates
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/54Substitutes for natural stone, artistic materials or the like
    • C04B2111/542Artificial natural stone

Definitions

  • This invention relates to simulated colored granite and its production, using filler of alumina trihydrate (ATH) in syrup and pre-ground particles of ATH-filled polymer.
  • ATH alumina trihydrate
  • the present invention provides a preparative process and a simulated granite article comprising
  • methyl methacrylate polymer selected from the group consisting of methyl methacrylate homopolymers and copolymers of methyl methacrylate with alpha-beta-ethylenically unsaturated compounds, and
  • Desirable sand-colored simulated granite can be made using brown and yellow pigmented particles, and pink to rose colored simulated granite can be made using red pigments in the particles. Similar pigments can be used in the matrix.
  • the comparative test gave acceptable results but in different color families, black and white rather than sand or rose.
  • the present invention is particularly useful.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Civil Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)

Abstract

Simulated granite in selected colors with increased levels of alumina trihydrate (ATH) and decreased amounts of pre-ground ATH-filled polymer particles of selected colors, and preparative process.

Description

SIMULATED COLORED GRANITE AND PROCESS Background of the Invention
This invention relates to simulated colored granite and its production, using filler of alumina trihydrate (ATH) in syrup and pre-ground particles of ATH-filled polymer.
This is an improvement for making simulated granite articles with colors other than black and white over U.S. Patents 4,085,246 (1978) and 4,159,301 (1979), both to Buser, Roedel and Vasilliou. U.S. Patent 3,775,364 (1973) - Duggins, describes casting and polymerization systems useful in the present invention. All three of these patents are hereby incorporated herein by reference.
U.S. Patent 4,544,584 - Ross (1985) describes technology for making simulated stone products including colorants. Summary of the Invention
The present invention provides a preparative process and a simulated granite article comprising
A. 60 to 99% by weight (based on weight of the article) of a matrix comprising
(1) 30 to 45% by weight (based on weight of the article) of methyl methacrylate polymer selected from the group consisting of methyl methacrylate homopolymers and copolymers of methyl methacrylate with alpha-beta-ethylenically unsaturated compounds, and
(2) 30 to 60% by weight (based on weight of the article) of alumina trihydrate particles having a maximum particle size less than about 100 microns in the longest dimension;
B. 0.8 to 20% by weight (based on weight of the article) particles in the size range of 100 to 800 or 2000 microns comprising a matrix of methyl methacrylate polymer selected from the group consisting of methyl methacrylate homopolymers and copolymers of methyl methacrylate with alpha-beta- ethylenically unsaturated compounds, filled with (based on the weight of the particles) 50 to 70% by weight alumina trihydrate and up to 2.5% by weight pigment, having a clear to white color;
C. 0.1-10% by weight (based on weight of the article) of particles in the size range of 100 to 2000 microns comprising a matrix of methyl methacrylate polymer selected from the group consisting of methyl methacrylate homopolymers and copolymers of methyl methacrylate with alpha-beta-ethylenically unsaturated compounds, filled with (based on the weight of the particles) 0.1-2.5% pigment having a black color;
D. 0.1-10.0% by weight (based on weight of the article) of particles in the size range of 100 to 2000 microns comprising a matrix of methyl methacrylate polymer selected from the group consisting of methyl methacrylate homopolymers and copolymers of methyl methacrylate with alpha-beta-ethylenically unsaturated compounds, filled with (based on the weight of the particles) 0.1-2.5% pigment of selected color other than black and white; and
E. 0-1% by weight (based on the weight of the article) of pigments of selected colors in at least the matrix of A.
Detailed Description In order to provide simulated granite articles with colors other than black and white and desirable aesthetics more economically, it has been discovered that the ATH content of the matrix should be increased above that normally used and to a particular narrow range within the general teachings of related art, while the content of ATH-filled particles should be decreased and appropriate pigments added to the particles. Optionally, the matrix can be pigmented at low levels. Since the particles can be more costly than the matrix resin, this permits cost savings.
Desirable sand-colored simulated granite can be made using brown and yellow pigmented particles, and pink to rose colored simulated granite can be made using red pigments in the particles. Similar pigments can be used in the matrix.
The content of ATH in the matrix is increased from a normal level near 30% to the range of 30 to 60%, preferably 45 to 55%. All parts, percentages and proportions are by weight, based on the weight of the article, except where indicated otherwise. Percentages of filler in pre-ground particles are by weight based on the weight of the particles themselves.
The content of pre-ground particles in the article preferably is down from a normally used 33% to 5-20%, more preferably at least about 10%. These changes, surprisingly, permit significant improvement in aesthetics with sustained physical, chemical and mechanical properties.
In the following examples and comparative test, formulations are presented which are processed as in the above-cited Buser et al patents and others known in the art to produce useful end product in the form of flat sheet and shape such as kitchen sinks and bowls. The seive size series used are in the American Standard Sieve Series in which 25-50 mesh is 700-300 microns and 50-100 mesh is 300 to 150 microns.
The particles are preformed methyl methacrylate polymer (PMMA) filled with about 62 to 65% by weight ATH particles and comminuted by techniques known in the art, preferably cryogenically, to the indicated mesh sizes, which are all in the range of 100 to 800 microns. The total filler level is also indicated, showing how much ATH plus pre-ground particles are in the matrix syrup. Suitable pigments known in the art can be used.
The comparative test gave acceptable results but in different color families, black and white rather than sand or rose. For obtaining the colors other than black and white, the present invention is particularly useful.
Example 1
Figure imgf000006_0001
Figure imgf000007_0001

Claims

Claims 1. A simulated granite article comprising
A. 60 to 99% by weight (based on weight of the article) of a matrix comprising
(1) 30 to 45% by weight (based on weight of the article) of methyl methacrylate polymer selected from the group consisting of methyl methacrylate homopolymers and copolymers of methyl methacrylate with alpha-beta-ethylenically unsaturated compounds, and
(2) 30 to 60% by weight (based on weight of the article) of alumina trihydrate particles having a maximum particle size less than about 100 microns in the longest dimension;
B. 0.8 to 20% by weight (based on weight of the article) particles in the size range of 100 to 2000 microns comprising a matrix of methyl methacrylate polymer selected from the group consisting of methyl methacrylate homopolymers and copolymers of methyl methacrylate with alpha-beta-ethylenically unsaturated compounds, filled with (based on the weight of the particles) 50 to 70% by weight alumina trihydrate and up to 2.5% by weight pigment having a clear to white color;
C. 0.1-10% by weight (based on weight of the article) of particles in the size range of 100 to 2000 microns comprising a matrix of such methyl methacrylate polymer selected from the group consisting of methyl methacrylate homopolymers and copolymers of methyl methacrylate with alpha-beta-ethylenically unsaturated compounds, filled with (based on the weight of the particles) 0.1-2.5% pigment having a black color;
D. 0.1-10.0% by weight (based on weight of the article) of particles in the size range of 100 to 2000 microns comprising a matrix of such methyl methacrylate polymer selected from the group consisting of methyl methacrylate homopolymers and copolymers of methyl methacrylate with alpha-beta-ethylenically unsaturated compounds, filled with (based on the weight of the particles) 0.1-2.5% pigment of selected color other than black and white; and
E. 0-1% by weight (based on the weight of the article) of pigments of selected colors in at least the matrix of A.
2. The article of claim 1 in which the selected colors of the pigments of (D) are brown and yellow, and the article has an overall color similar to sand.
3. The article of claim 1 in which the selected color of the pigments of (D) is red and the article has an overall color in the range of pink to rose.
4. The article of claim 1 wherein the white pigment of B is selected from the group consisting of titanium dioxide, barium sulfate, zinc sulfide and zinc oxide.
5. The article of claim 4 wherein the white pigment includes zinc oxide or zinc sulfide.
6. A process of preparing a simulated granite article of claim 1 by:
A. preparing a matrix wet mix comprising about 60 to 99% by weight (based on the weight of the article) comprising about: (1) 30-45% by weight (based on the weight of the article) of a syrup of 10 to 35% by weight (based on the weight of the syrup) of methyl methacrylate polymer selected from the group consisting of methyl methacrylate homopolymers and copolymers of methyl methacrylate with alpha-beta- ethylenically unsaturated compound, the balance of said syrup being monomer of such methyl methacrylate polymer, and
(2) 30 to 60% by weight (based on the weight of the article) of alumina trihydrate particles having a maximum particle size less than about 100 microns in the longest dimension;
B. mixing with said matrix wet mix about:
(1) 0.8 to 20% by weight (based on weight of the article) particles in the size range of 100 to 800 microns comprising a matrix of methyl methacrylate polymer selected from the group consisting of methyl methacrylate homopolymers and copolymers of methyl methacrylate with alpha-beta- ethylenically unsaturated compounds, filled with (based on the weight of the particles) 50 to 70% by weight alumina trihydrate and up to 2.5% by weight pigment having a clear to white color;
(2) 0.1-10% by weight (based on weight of the article) of particles in the size range of 100 to 2000 microns comprising a matrix of such methyl methacrylate polymer selected from the group consisting of methyl methacrylate homopolymers and copolymers of methyl methacrylate with alpha-beta-ethylenically unsaturated compounds, filled with (based on the weight of the particles) 0.1-2.5% pigment having a black color;
(3) 0.1-10.0% by weight (based on weight of the article) of particles in the size range of 100 to 2000 microns comprising a matrix of such methyl methacrylate polymer selected from the group consisting of methyl methacrylate homopolymers and copolymers of methyl methacrylate with alpha-beta-ethylenically unsaturated compounds, filled with (based on the weight of the particles) 0.1-2.5% pigment of selected color other than black and white; and (4) 0-1% by weight (based on the weight of the article) of pigments of selected colors in at least the matrix of A;
C. adding an initiator system for the polymerizable constituent;
D. introducing the composition from (C) onto a casting surface or into a mold; and
E. curing the composition to form the article.
7. The process of claim 6 wherein the white pigment of B is selected from the group consisting of titanium dioxide, barium sulfate, zinc sulfide and zinc oxide.
8. The article of claim 4 wherein the white pigment includes zinc oxide or zinc sulfide.
PCT/US1989/003146 1988-07-29 1989-07-21 Simulated colored granite and process WO1990001470A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9006478A GB2230529B (en) 1988-07-29 1990-03-16 "simulated colored granite and process"

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US22624788A 1988-07-29 1988-07-29
US22598988A 1988-07-29 1988-07-29
US225,989 1988-07-29
US226,247 1988-07-29

Publications (1)

Publication Number Publication Date
WO1990001470A1 true WO1990001470A1 (en) 1990-02-22

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Family Applications (1)

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WO (1) WO1990001470A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2233640A (en) * 1989-01-11 1991-01-16 Frank Brendan Devlin Mineral composition
EP0639539A1 (en) * 1993-08-17 1995-02-22 Röhm Gmbh Process for manufacturing of highly filled mouldings from polymethylmethacrylnate
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
EP0731116A3 (en) * 1995-03-07 1998-05-13 Röhm Gmbh Process for the preparation of highly filled polymers
US7247667B2 (en) * 2004-03-23 2007-07-24 E. I. Du Pont De Nemours And Company Particle containing solid surface material

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991011404A1 (en) * 1990-01-29 1991-08-08 E.I. Du Pont De Nemours And Company Simulated colored granite and process

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3488246A (en) * 1966-08-31 1970-01-06 Du Pont Cast plastic simulated marble building product
FR2179022A1 (en) * 1972-04-03 1973-11-16 Du Pont
US3847865A (en) * 1972-04-28 1974-11-12 Du Pont Use of alumina trihydrate in a polymethyl methacrylate article
US4544584A (en) * 1980-05-05 1985-10-01 Ross Gilbert B Cultured onyx products and methods therefor
EP0211657A2 (en) * 1985-08-07 1987-02-25 Nippon Shokubai Co., Ltd. Curable composition, method for manufacture thereof and articles made therefrom

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3488246A (en) * 1966-08-31 1970-01-06 Du Pont Cast plastic simulated marble building product
FR2179022A1 (en) * 1972-04-03 1973-11-16 Du Pont
US3847865A (en) * 1972-04-28 1974-11-12 Du Pont Use of alumina trihydrate in a polymethyl methacrylate article
US4544584A (en) * 1980-05-05 1985-10-01 Ross Gilbert B Cultured onyx products and methods therefor
US4544584B1 (en) * 1980-05-05 1991-07-02 Cultured onyx products and methods therefor
US4544584B2 (en) * 1980-05-05 1998-06-30 Spectrum 21 Licensing Corp Cultured onyx products and methods therefor
EP0211657A2 (en) * 1985-08-07 1987-02-25 Nippon Shokubai Co., Ltd. Curable composition, method for manufacture thereof and articles made therefrom

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2233640A (en) * 1989-01-11 1991-01-16 Frank Brendan Devlin Mineral composition
EP0639539A1 (en) * 1993-08-17 1995-02-22 Röhm Gmbh Process for manufacturing of highly filled mouldings from polymethylmethacrylnate
EP0731116A3 (en) * 1995-03-07 1998-05-13 Röhm Gmbh Process for the preparation of highly filled polymers
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
US5851606A (en) * 1995-03-27 1998-12-22 Atohaas Holding C.V. Thermoformable acrylic resin sheet
US7247667B2 (en) * 2004-03-23 2007-07-24 E. I. Du Pont De Nemours And Company Particle containing solid surface material

Also Published As

Publication number Publication date
GB2230529A (en) 1990-10-24
GB9006478D0 (en) 1990-07-25
GB2230529B (en) 1992-01-15

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