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INVENTION
Russian Federation Patent RU2287546
polyester enamels
Name of the inventor: Nikolay Fedchenko (RU); Scrubs Vasily G. (RU); Kondrashov Nikolay (RU); Mokretsov Solomin (RU); Parahin Alexey (RU); Afinogenov Oleg Fedorovich (RU); Obodova Tamara (RU); Ganzhin Vladimir (RU); Viktor Loginov (RU); Shitov Boris (RU); Mineeva Olga
The name of the patentee: Federal State Unitary Enterprise (FSUE) "Perm Plant named after Kirov." (RU); Open Joint Stock Company "Joint Stock Company Lysva Metallurgical Plant"
Address for correspondence: 614113, Perm, ul. DI. Halperin, 11, FSUE "Perm Plant. Kirov", gene. Director GE Kuzmitsky
Starting date of the patent: 2005.04.27
The invention relates to the production of paints, namely to obtain stoving enamels for coating a metal web, but also builders, and various car devices. Polyester film former comprises enamel, curing catalyst, curing agent, an organic solvent, a pigment. As the film former comprises a 60% saturated polyester resin dissolved in solvent mixture and butyl glycol in a 3: 1 "Uralak SN844S2G3-60» with molecular weight 4000, hydroxyl number of 30-35 mgKOH / g, an acid number of 0-4 mgKOH / g and a glass transition temperature 19 ° C and 75% solution of a saturated polyester resin dissolved in solvent "Uralak SN865S2-75» with molecular weight 4500, hydroxyl number of 15-30 mgKOH / g, an acid value of 7.3 mgKOH / g and a glass transition temperature of -17 ° C as a curing catalyst - 40% solution in isopropanol and paratoluilensulfokisloty 30% solution in xylene dinonilmononaftalensulfokisloty as hardener - methylated melamine-formaldehyde resin, as the organic solvent comprises a mixture of solvent and n - butyl alcohol in a pigment comprising titanium dioxide, aluminum oxide and stabilized zirconia, moreover, further comprises matting agents - amorphous silica "Syloid ED-3" with a particle size of 5,3-6,3 
m and the content of SiO 2 (dry matter) - rastekatel and 99% - 75% solution of acrylic polymer dissolved in the solvent mixture, and N-butyl alcohol in a ratio of 4: 1 «Urad DD27» components at a certain ratio. Drying time at peak metal temperature up to 249 ° C proposed polyester enamel is 65-72 s, and the film resistance to methyl ethyl ketone action - 140-160.
DESCRIPTION OF THE INVENTION
The invention relates to the production of paints, namely to obtain stoving enamels for coating a metal web, but also builders, and various car devices.
Known polyester enamel copyright certificate №567326, IPC C 09 D 3/48, Table 10, containing, by weight%:
The film former:
| Saturated polyester resin | |
| dimethyl terephthalate, adipic acid, | |
| ethylene glycol, diethylene | |
| trimethylol propane in a ratio, wt.% | |
| 25 33: 27: 20: 10: 10 | 25 |
| Diglycidyl ester of dicarboxylic acids of higher | 0-5 |
curing catalyst:
| Para-toluenesulfonic acid | 0.07 |
Hardener:
| Melamine-formaldehyde resin | 2.5 |
The organic solvent;
| cyclohexanone | 31,5-36,5 |
| isophorone | 5 |
| butyl alcohol | 4,93-5,0 |
Pigments:
| titanium dioxide | 20 |
Filler:
| Microtalc | 5 |
Disadvantages of the known polyester enamel is a long drying time at a peak metal temperature of 249 ° C (90 s) and low film resistance to the action of methyl ethyl ketone (100).
The object of the invention to provide a polyester enamel with a small drying time at peak metal temperature of the film and high resistance to the action of methyl ethyl ketone while maintaining the other parameters at the same level.
This object is achieved due to the fact that polyester enamel comprising a film former, curing catalyst, curing agent, an organic solvent, a pigment, as a film former contains 60% solution of saturated polyester resin in a mixture of solvent and butyl glycol in a 3: 1 "SN 844S2G3 Uralak -60 "with a molecular weight of 4,000, hydroxyl number of 30-35 mgKOH / g, an acid number of 0-4 mgKOH / g and a glass transition temperature of 19 ° C and 75% solution of saturated polyester resin solvent" Uralak SN 865S2-75 » of molecular weight 4500, hydroxyl number of 15-30 mgKOH / g, an acid value of 7.3 mgKOH / g and a glass transition temperature of -17 ° C, as a curing catalyst - paratoluilensulfokisloty 40% solution in isopropanol and 30% solution dinonilmononaftalensulfokisloty xylene as a hardener - methylated melamine-formaldehyde resin, as the organic solvent comprises a mixture of solvent and n-butyl alcohol as the pigment comprises titanium dioxide, stabilized zirconia alumina and zirconia, in addition, further comprising a matting additive - amorphous silica "Syloid U-3 "having a particle size of 5,3-6,3 m and the content of SiO 2 (dry matter) - 99%, and 75% solution of acrylic polymer dissolved in the solvent mixture, and N-butyl alcohol in a ratio of 4: 1, «Urad DD27», with the following ratio of components, parts by weight :
| 60% saturated polyester resin solution | |
| in a solvent mixture of butyl glycol and | |
| in a 3: 1 "Uralak SN 844S2G3-60» with | |
| molecular weight 4000, hydroxyl | |
| the number of 30-35 mgKOH / g, acid number | |
| 0-4 mgKOH / g and a glass transition temperature of 19 ° C | 30-40 |
| 75% strength solution of saturated polyester | |
| resin in solvent "Uralak SN 865S2-75» | |
| with a molecular weight of 4500, | |
| a hydroxyl number of 15-30 mgKOH / g, | |
| acid number 3.7 | |
| mgKOH / g | |
| and glass transition temperature -17 ° C | 7-12 |
| 40% solution of a couple - toluilensulfokisloty | |
| isopropanol | 0.5-0.7 |
| 30% solution dinonilmononaftalensulfokisloty | |
| xylene | 1.5-3.0 |
| Methylated melamine-formaldehyde resin | 3,0-6,2 |
| solvent | 7,2-24,3 |
| N-butyl alcohol | 2,4-8,1 |
| Amorphous silica "Syloid ED-3" size | |
|
5,3-2,0- particles (5,0-6,3 L) |
|
| SiO 2 content (in dry matter) - 99% | 2.0-5.0 |
| Titanium dioxide, stabilized | |
| aluminum and zirconium oxides | 25-36 |
| 75% strength solution of acrylic polymer | |
| in a mixture of solvent and n-butyl alcohol | |
| to 4: 1, «Urad DD27» | 0.2-0.3 |
The enamel composition is used as a film former solution 60% saturated polyester resin in a mixture of solvent and butyl glycol in a 3: 1 "Uralak SN 844S2G3-60» with molecular weight 4000, hydroxyl number of 30-35 mgKOH / g, acid value 0 -4 mgKOH / g and a glass transition temperature of 19 ° C and 75% solution of a saturated polyester resin in the solvent - "SN 865 Uralak S2-75» with molecular weight 4500, hydroxyl number of 15-30 mgKOH / g, acid number 7.3 mgKOH / g and a glass transition temperature of -17 ° C.
As the curing catalyst composition comprises:
- 40% solution of para-toluilensulfokisloty isopropanol - "acid catalyst K-CURE 1040" and a 30% solution in xylene dinonilmononaftalensulfokisloty "Blocked Catalyst NACURE 1419 '.
The hardener used methylated melamine-formaldehyde resin - «CYMEL + 303 resin".
As the organic solvent, a mixture solvent (GOST 10214), and n-butyl alcohol (TU 64-5-65-80).
The matting agent used as amorphous silica - "Syloid ED - 3" with a particle size (5,3-6,3 m) and the content of SiO 2 (dry matter) - 99%.
As the titanium dioxide pigment used, stabilized zirconia and aluminum oxides, - «TRONOX R-KB-6". It is a micronized rutile pigment with good optical properties, good dispersion, resistance to light and weather conditions.
As rastekatelya enamel contains «Urad DD 27" - 75% solution of acrylic polymer dissolved in the solvent mixture, and N-butyl alcohol in a ratio of 4: 1. «Urad DD27» is an acrylic polymer, which prevents all types of surface defects.
A composition prepared according to the following technology.
The dissolver is charged without heating the organic solvent, a film former, matting agents, pigment rastekatel, curing agent and curing catalyst 1.5-2 hours and stirred.
The resulting composition is dispersed in a bead mill. Table 1 shows examples of the component composition of polyester enamel.
The finished enamel is applied on electrolytically galvanized rolled metal rolling method for protective and decorative coatings.
Tests Properties polyester enamel coating and are conducted therefrom by standard procedures.
Resistance to methyl ethyl ketone film according ESSAT step 11 determined by the number of reciprocating movements (one movement back and forth) in paintwork swab soaked with methyl ethyl ketone, with a force in the range of 0.04 MPa and at a speed of 1 per double movement. The length of movement should be 5 times larger contact area with the length of the tampon coating. Drying time at peak metal temperature up to 249 ° C, the film resistance to methyl ethyl ketone enamel prototype defined further.
The test results obtained in Examples proposed enamel and the prototype are shown in Table 2.
Table 2 shows that the drying time at a peak metal temperature of 249 ° C is proposed polyester enamel 65-72 s, and the film resistance to methylethylketone action - 140-160.
| Table 1 | |||||||||||||
| Prototype | As examples of parts | ||||||||||||
| component Name | Mas.% | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | eleven | 12 |
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | eleven | 12 | 13 | 14 |
| The film former | |||||||||||||
| 60% solution of a saturated polyester resin in a mixture of solvent and butyl glycol in a 3: 1 "Uralak SN 844S2G3-60» with molecular weight 4000, hydroxyl number of 30-35 mgKOH / g, an acid number of 0-4 mgKOH / g and temperature 19 ° C glass transition | - | 29 | thirty | 31 | 34 | 35 | 36 | 37 | 38 | 40 | 40 | 40 | 41 |
| 75% solution of a saturated polyester resin in solvent - "Uralak SN 865S2-75» with molecular weight 4500, hydroxyl number of 15-30 mgKOH / g, an acid value of 7.3 mgKOH / g and a glass transition temperature of -17 ° C | - | 6 | 7 | 7 | 8 | 9 | 8 | 7 | 10 | eleven | 12 | 12 | 13 |
| Saturated polyester resin based on dimethyl terephthalate, adipic acid, ethylene glycol, diethylene glycol, trimethylol propane in a ratio of 33% by weight:. 27: 20: 10: 10 | 25 | ||||||||||||
| Diglycidyl ester of dicarboxylic acids of higher | 0-5 | ||||||||||||
| curing agent | |||||||||||||
| paratoluenesulfonic | 0.07 | ||||||||||||
| 40% solution of para-toluilensulfokisloty isopropanol - "acid catalyst K-CURE 1040" | - | 0.4 | 0.5 | 0.5 | 0.5 | 0.6 | 0.7 | 0.7 | 0.7 | 0.7 | 0.7 | 0.7 | 0.8 |
| 30% solution in xylene dinonilmononaftalensulfokisloty "Blocked rolled sarop NACURE 141 U" | - | 1.4 | 1.5 | 1.5 | 2.0 | 2.4 | 2.5 | 2.6 | 2.8 | 2.9 | 3.0 | 3.0 | 3.1 - |
| continued Table 1 | |||||||||||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | eleven | 12 | 13 | 14 |
| Hardener | |||||||||||||
| Melamine-formaldehyde resin | 2.5 | ||||||||||||
| Methylated melamine-formaldehyde resin - "CYMEL + 303 resin" | - | 2.8 | 3.0 | 3.5 | 3.1 | 3.3 | 4.0 | 4.5 | 5.0 | 5.5 | 6.0 | 6.2 | 6.3 |
| organic solvent | |||||||||||||
| cyclohexanone | 31,5-36,5 | ||||||||||||
| isophorone | 6 | ||||||||||||
| butyl alcohol | 4,93-5,0 | ||||||||||||
| solvent | 6.9 | 7.2 | 9.0 | 15.0 | 18.0 | 18.0 | 12.0 | 15.0 | 21.0 | 24.0 | 24.3 | 24.6 | |
| N-butyl Speer | 2.3 | 2.4 | 3.0 | 5.0 | 6.0 | 6.0 | 4.0 | 5.0 | 7.0 | 8.0 | 8.1 | 8.2 | |
| Matting additive | |||||||||||||
| Amorphous silica "Syloid ED 3" with a particle size (5,3-6,3 m) and the content of SiO 2 (dry matter) - 99% |
1 | 2 | 4 | 5 | 4 | 3 | 2 | 3 | 5 | 4 | 5 | 6 | |
| continued Table 1 | |||||||||||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | eleven | 12 | 13 | 14 |
| Pigment | |||||||||||||
| titanium dioxide | 20 | ||||||||||||
| Titanium dioxide, stabilized with alumina and zirconia «TRONOX R- KB - 6" | 20 | 25 | 29 | thirty | 35 | 36 | 28 | 29 | 24 | 35 | 36 | 37 | |
| Filler | |||||||||||||
| Microtalc | 5 | ||||||||||||
| Rastekatel | |||||||||||||
| 75% solution of acrylic polymer dissolved in solvent mixture and H- butyl alcohol in a ratio of 4: 1, «Urad DD27» | 0.1 | 0.2 | 0.2 | 0.2 | 0.3 | 0.3 | 0.2 | 0.2 | 0.2 | 0.3 | 0.3 | 0.4 | |
CLAIM
Polyester enamel comprising a film former, curing catalyst, curing agent, organic solvent, pigment, characterized in that as a film-forming agent contains 60% solution of saturated polyester resin in a mixture of solvent and butyl glycol in a 3: 1 "Uralak SN844S2G3-60» molecular weight 4000, hydroxyl number of 30-35 mgKOH / g, an acid number of 0-4 mgKOH / g and a glass transition temperature of 19 ° C and 75% solution of saturated polyester resin solvent "Uralak SN865S2-75» with molecular weight 4500, hydroxyl number 15-30 mgKOH / g, an acid value of 7.3 mgKOH / g and a glass transition temperature of -17 ° C, a curing catalyst as a 40% solution of para-toluilensulfokisloty in isopropanol and dinonilmononaftalensulfokisloty 30% solution in xylene as a hardener -metilirovannuyu melamine - formaldehyde resin, the organic solvent comprises a mixture of solvent and n-butyl alcohol as the pigment comprises titanium dioxide, aluminum oxide and stabilized zirconia, in addition, the additive further comprises a matting - amorphous silica "Syloid ED-3 'with particle size of 5,3-6,3 mm, and the content of SiO 2 (dry matter) - rastekatel 99% and 75% strength solution of acrylic polymer in a mixture of solvent and N-butyl alcohol in a ratio of 4: 1 «Urad DD27», in the following ratio, mass parts .:
| A solution of 60% saturated polyester resin in a mixture of | |
| butyl glycol and solvent in the ratio of 3: 1 "Uralak | |
| SN844S2G3-60 »with molecular weight 4000, hydroxyl | |
| number of 30-35 mgKOH / g, an acid number of 0-4 mgKOH / g and | |
| temperature 19 ° C glass transition | 30-40 |
| 75% strength solution of a saturated polyester resin | |
| Solvent "Uralak SN 865S2-75» with a molecular weight of 4500, | |
| hydroxyl number of 15-30 mgKOH / g, an acid number of | |
| 7.3 mgKOH / g and a glass transition temperature of -17 ° C | 7-12 |
| 40% solution of steam - in toluilensulfokisloty | |
| isopropanol | 0.5-0.7 |
| 30% solution in dinonilmononaftalensulfokisloty | |
| xylene | 1.5-3.0 |
| Methylated melamine-formaldehyde resin | 3,0-6,2 |
| solvent | 7,2-24,3 |
| N-butyl alcohol | 2,4-8,1 |
| Amorphous silica "Syloid ED-3" having a particle size | |
| 5,3-6,3 mm, and an SiO 2 content (in dry matter) - 99% | 2-5 |
| Titanium dioxide, aluminum oxide and stabilized zirconium | 25-36 |
| 75% strength solution of acrylic polymer in a mixture of solvent and N-butyl alcohol in a ratio of 4: 1, «Urad DD27» | 0.3-0.5 |
print version
Publication date 18.01.2007gg
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