ES2657278T3 - Polvos de polímero hidrosolubles con mejor dispersibilidad - Google Patents

Polvos de polímero hidrosolubles con mejor dispersibilidad Download PDF

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ES2657278T3
ES2657278T3 ES13739323.7T ES13739323T ES2657278T3 ES 2657278 T3 ES2657278 T3 ES 2657278T3 ES 13739323 T ES13739323 T ES 13739323T ES 2657278 T3 ES2657278 T3 ES 2657278T3
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poly
mixture
coating
copolymer
commercial
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Prachur BHARGAVA
Michael A. Tallon
Konstantin A. Vaynberg
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Hercules LLC
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Hercules LLC
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/65—Additives macromolecular
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    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/12—Powdering or granulating
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    • C08J3/00—Processes of treating or compounding macromolecular substances
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    • C08J3/128—Polymer particles coated by inorganic and non-macromolecular organic compounds
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    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D125/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Coating compositions based on derivatives of such polymers
    • C09D125/02—Homopolymers or copolymers of hydrocarbons
    • C09D125/04—Homopolymers or copolymers of styrene
    • C09D125/08—Copolymers of styrene
    • C09D125/14—Copolymers of styrene with unsaturated esters
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    • C08J2301/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
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    • C08J2301/28—Alkyl ethers
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    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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    • C08J2333/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
    • C08J2333/24—Homopolymers or copolymers of amides or imides
    • C08J2333/26—Homopolymers or copolymers of acrylamide or methacrylamide
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    • C08J2339/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen; Derivatives of such polymers
    • C08J2339/04—Homopolymers or copolymers of monomers containing heterocyclic rings having nitrogen as ring member
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    • C08J2425/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Derivatives of such polymers
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    • C08J2425/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Derivatives of such polymers
    • C08J2425/02—Homopolymers or copolymers of hydrocarbons
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    • C08J2433/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
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    • C08J2435/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical, and containing at least one other carboxyl radical in the molecule, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Derivatives of such polymers
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    • C08J2435/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical, and containing at least one other carboxyl radical in the molecule, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Derivatives of such polymers
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    • C08J2447/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds; Derivatives of such polymers
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    • C08J2459/00—Characterised by the use of polyacetals containing polyoxymethylene sequences only
    • C08J2459/02—Copolyoxymethylenes
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    • C08J2471/00—Characterised by the use of polyethers obtained by reactions forming an ether link in the main chain; Derivatives of such polymers
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    • C08J2475/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2475/04—Polyurethanes
    • C08J2475/14—Polyurethanes having carbon-to-carbon unsaturated bonds
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    • C08J2483/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
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Abstract

Una composición de polvo seco que consiste esencialmente en - polvos de polímero hidrosolubles y - un componente seleccionado entre el grupo consistente en poli(éter metilvinílico-alt-ácido maleico), copolímero de éster de poli(éter metilvinílico-alt-ácido maleico), poli(éter metilvinílico-alt-anhídrido maleico), copolímero de éster de poli(éter metilvinílico-alt-anhídrido maleico), poli(estireno-co-ácido maleico), copolímero de éster de poli(estireno-co-ácido maleico), poli(estireno-co-anhídrido maleico), copolímero de éster de poli(estireno-co10 anhídrido maleico) y sus combinaciones.

Description

imagen1
imagen2
imagen3
imagen4
imagen5
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Ácido bórico
Mezcla Sin grumos 5400 4200
Revestimiento
Joncryl® 68
Mezcla
Revestimiento
Sin grumos 5500 4200 4000 2300
Joncryl® 678
Mezcla
Revestimiento
Sin grumos 5400 4200 4200 2300
Joncryl® 682
Mezcla
Revestimiento
Sin grumos 5400 4200 4200 2300
Joncryl® 690
Mezcla
Revestimiento
Sin grumos Sin grumos 5500 4200 4200 2300
NaCl
Mezcla 5000 4200
Revestimiento
Scripset™ 550
Mezcla 4700 4200
Revestimiento
Plasdone™ K-12
Mezcla 3200 2300
Revestimiento
Plasdone™ K-17
Mezcla 3100 2300
Revestimiento
Plasdone™ K-90
Mezcla 3200 2300
Revestimiento
Aquaflex™ XL-30
Mezcla
Revestimiento
5700 2500
Aquaflex™ FX-64
Mezcla
Revestimiento
3340 2500
Fosfato de urea
Mezcla 5190 4700 4800 2500
Revestimiento
Polidimetilsiloxano
Mezcla
Revestimiento
5000 4200
Rhoplex™ SG10M
Mezcla
Revestimiento
5500 2300
Strodex™ P100
Mezcla
Revestimiento
5000 4700 5530 2500
Metaborato de sodio
Mezcla 4600 4200
Revestimiento
Pluronic® F68
Mezcla 4900 4200
Revestimiento
5000 4200
Plasdone™ S-630
Mezcla
Revestimiento
5200 4200 3900 2500
Éster de anhídrido maleico
Mezcla
Revestimiento
5370 2500
Disintex™ 75
Mezcla 5000 4200
Revestimiento
Disinisx™ 200
Mezcla 4700 4200
Revestimiento
Acrilato metacrilato de uretano
Mezcla
Revestimiento
3340 2500
Uretano etoxilado hidrofóbicamente modificado
Mezcla
Revestimiento
4700 2500
Ingredientes enumerados en la Tabla 2: (1) Gantrez™ ES-225: éster etílico de copolímero de poli(metil vinil éter/ácido maleico) comercial de Ashland Inc. (2) Gantrez™ AN-119: copolímero de poli(metil vinil éter/anhídrido maleico) comercial de Ashland Inc. (3) Gantrez™ AN-139: copolímero de poli(metil vinil éter/anhídrido maleico) comercial de Ashland Inc. (4) Gantrez™ S-97 BF: ácido libre de copolímero de poli(metil vinil éter/anhídrido maleico) comercial de Ashland Inc. (5) Jonocril® 67: copolímero acrílico modificado comercial de BASF.
8
(6)
Joncril® 678: resina acrílica comercial de BASF.
(7)
Joncril® 682: resina acrílica de bajo peso molecular comercial de BASF.
(8)
Joncril® 690: resina acrílica de alto peso molecular y alto valor ácido comercial de BASF.
(9)
Scripset™ 550: copolímero de estireno/anhídrido maleico comercial de Ashland Inc.
(10)
Plasdone™ K-12, K-17 y K-90: polivinilpolipirrolidonas comerciales de Ashland Inc.
(11)
Aquaflex™ XL-30: copolímero de isobutileno/dimetilaminopropilmaleimlda/maleimida etoxilada/ácido maleico comercial de Ashland Inc.
(12)
Aquaflex™ FX-64: copolímero de isobutileno imidizado/anhídrido maleico comercial de Ashland Inc.
(13)
Rhoplex™ SG-10M: polímero acrílico comercial de The Dow Chemical Company..
(14)Strodex™ P100: éster fosfato comercial de Ashland Inc.
(15)
Pluronic® F68: copolímero de bloques de polioxietileno-polioxipropileno comercial de BASF.
(16)
Plasdone™ S-630: copolímero de vinilpirrolidona vinilacetato comercial de Ashland Inc.
(17)
Disintex™ 75 y Disintex™ 200: polivinilpolipirrolidonas comerciales de Ashland Inc.
Ejemplo 2
Se preparó una solución de revestimiento disolviendo 1 g de Scripset™ 520 (copolímero de muy alto peso molecular
5 de estireno/anhídrido maleico, comercializado por Ashland Inc.) y 0,5 g de surfactante Strodex™ P100 (éster fosfato, comercializado por Ashland Inc.) en 36 g de acetona/3 g de agua. Se mezcló entonces la solución con 50 g de Natrosol™ 250HX (hidroxiletilcelulosa, comercializada por Ashland Inc.) durante aproximadamente 10 minutos y se secó en una secadora de lecho fluidizado a aproximadamente 70°C durante aproximadamente 5 minutos. Se obtuvieron partículas revestidas que tenían un 2% en peso de Scripset 520™ y un 1% en peso de Strodex™ P100.
10
Ejemplo 3
Se añadieron directamente 1,22 g de las muestras de polvo obtenidas en el Ejemplo 2 a 200 g de agua DI (pH 5,89) mientras se mezclaba a 200 rpm con una mezcladora conectada a un viscosímetro HAAKE para medir el
15 par de torsión acumulado con el tiempo. La Figura 1 muestra el cambio de par de torsión con el tiempo para la mezcla. Se observó visualmente una dispersión fina de partículas de HEC (hidroxiletilcelulosa). A t = 300 s, se añadieron 5 gotas de amoníaco al 28% para aumentar el pH hasta aproximadamente 10,5. La solución se volvió entonces transparente y el par de torsión comenzó a aumentar rápidamente para la disolución. Al cabo de 30 minutos, se obtuvo una solución libre de grumos.
20 Como ejemplo comparativo, se añadieron 1,22 g de Natrosol™ 250HX no revestido a agua DI con el mismo procedimiento que el utilizado para la HEC revestida. Se observó un gran grumo, lo que dio como resultado un insuficiente aumento de viscosidad.
25 Ejemplo 4
Se añadieron muestras en polvo de HEC revestida (1,22 g de muestras obtenidas en el Ejemplo 2 en 48 g de agua DI) a 220 g de pintura plana 70PVC basada en UCAR 379G como se muestra en la Tabla 1, mientras se mezclaba a aproximadamente 300 rpm. La Figura 2 muestra los cambios de par de torsión con el tiempo para la pintura después
30 de añadir el polvo de HEC revestida. Se obtuvo una pintura libre de grumos al cabo de 30 minutos con una viscosidad final de Stormer de aproximadamente 99 KU.
Ejemplo 5 -C16/C12-PAPE
35 Se añadieron a una mezcladora de cinta Abbe PEG-8000 (2.700 g) e hidróxido de sodio (108 g), para formar una mezcla de PEG-8000/NaOH. Después de sellar el reactor, se calentó la mezcla de PEG-9000/NaOH a aproximadamente 80°C durante aproximadamente una hora. Se añadió luego dibromometano (24,7 g) a la mezcla de PEG-8000/NaOH y se calentó la mezcla de reacción resultante a aproximadamente 80°C durante aproximadamente 4 horas, para formar un copolímero de PEG-8000/metileno.
40 Se añadieron al copolímero de PEG-8000/metileno a aproximadamente 80°C 1-bromododecano (122,4 g) y 1bromohexadecano (91 g). Se calentó la mezcla de reacción resultante a aproximadamente 120°C durante aproximadamente 2 horas. Se abrió entonces el reactor y se vertió la mezcla de reacción fundida en una bandeja de plástico. Tras enfriarse hasta la temperatura ambiente, la mezcla de reacción se solidificó.
45
Ejemplo 6
Se preparó una solución de revestimiento mezclando 4 g de una solución acuosa al 17,5% de C16-C12-PAPE obtenido en el Ejemplo 5 en 33 g de acetona. Se mezcló la solución con 50 g de Natrosol® 250HX durante
50 aproximadamente 10 minutos y se secó en una secadora de lecho fluidizado a aproximadamente 70°C durante
9
imagen7

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