TWI252862B - Aqueous anti-fouling resin composition and uses thereof - Google Patents

Abstract

The present invention pertains to an aqueous resin composition comprising a polymer and an aqueous medium, characterized in that said polymer is prepared by copolymerizing a fluoro-resin and a double bond containing monomer. The resin composition of the present invention can be formulated into a coating for a substrate so as to impart sustain resistance to the surface of the substrate.

Description

1252862 发明 发明 发明 发明 发明 水性 水性 水性 水性 水性 水性 水性 水性 水性 水性 水性 水性 水性 水性 水性 水性 水性 水性 水性 水性 水性 水性 水性 水性 水性 水性 水性 水性 水性 水性[Prior Art] In the past, the general building wall only required the appearance of a beautiful, μ-guaranteed 3 layer of coating requirements 'often # t bright. The anti-fouling property of the paint is not strict. It is filled with many pollution sources in our daily life, Γ; the floating _ dust in the gas, with the right ^ two chapters...: the smoke, the poor conductor with electricity and the industrial 丨s Wenyu et al. 'often formed pollution on the surface of the 恁 恁 恁 恁 , , , , , , , , , , , , , 砚 砚Said. In addition, for the application of the building wall, it is biased to the ears. The organic compound is prepared for the violent energy, and the photochemical decomposition (ph〇t〇chemical degradati〇n) occurs when 1% of the external sputum of the 3 series is contained in the ultraviolet ray, and the weather resistance of the sputum is not good. Will cause coating degradation and shedding. In the history of coatings, organic solvents were initially used as dispersion media, but organic solvents are often toxic and pollute the environment. Therefore, the current market is dominated by water-based coatings. The coating is a multi-phase and multi-component material, and usually contains, conjugated, mixed, resin, and the like. It is well known that resin is the main material of coatings, and it is the primary factor affecting the performance of cold and cold, and the hardness and water resistance of the coating film are related to the hardness and water resistance of the coating. Sex and so on. The inventors of the present invention have found through extensive research that the water-based organic resin has a special chemical structure, which can improve the weather resistance of the coating. Please increase the soil resistance by < ^ 1 soil.

PAYPW\ETHRNAL-CHINESE\91028SP.DOC 1252862 The aqueous medium used in the present invention, which is known to those skilled in the art, is preferably water, for example, using deionized water. / The polymer used in the aqueous resin slave of the present invention has a glass conversion degree of 10-70C', preferably 30_6 (rc. high glass transition temperature, can resist softening of the resin due to high temperature, in use materials In the case of a coating, the chance of causing the resulting coating to be stained is effectively reduced. The polymer used in the present invention can be prepared by any means well known to those skilled in the art. For example, the present invention is first used for polymerization. The polymer of the present invention is prepared by mixing various monomers for preparing a polymer, mixing with a suitable solvent and, if necessary, a suitable catalyst, at a suitable temperature and reaction time to obtain the polymer of the present invention. It is desirable to apply a lacquer or coating to a suitable substrate surface, such as a building wall, metal, wood or stone, by methods well known to those skilled in the art, which can be bonded to the substrate to be strong and water resistant. And i has anti-staining property, which makes the substrate easy to clean, and has the advantages of good weatherability A, low film forming temperature, etc. The following embodiments will further explain the present invention, It is not intended to limit the scope of the present invention, and any modifications and variations which may be obtained without departing from the spirit and scope of the present invention belong to the present invention.

range. In the X example, the abbreviations used are defined as follows: 2-EHA: 2-Ethylhexyl Acrylate MMA: Methyl methacrylate BA: Butyl acrylate

P:\YPW\ETERNAL-CHINESE\91028SP.DOC 1252862 hours, wash with water and visually clean it. 4. The different emulsion resins of the city f are compared according to the same paint method and test method. Note 1 2 2 PVC white paint is well known to those familiar with the technology. Its composition is: basic powder (white powder) 12 5 parts by weight of resin composition 1 5 1 part by weight of film-assisting 3 parts by weight The test results of the foaming agent 0.3 parts by weight of the tackifier 24 parts by weight are shown in Fig. 1. Weather resistance test of resin composition 1. The cream resin is formulated into a white paint according to the reference formula of 22PVC white paint, coated on a weatherproof test machine (Q-Panel, UVB3 13 lamp) special test plate, 25" melon dry film thickness Place it at room temperature for 7 days to dry. 2. Test the white lacquer test piece of different emulsion resin into a weathering test machine (Q-Panel, UVB3丨3 lamp) and measure the gloss retention rate for a certain period of time ( Gloss retention) to determine the weather resistance. The obtained test results are shown in Figure 2. It is known from the test results that a polymer obtained by copolymerizing a fluorocarbon resin and a monomer containing a double bond can be used. The resin composition has good stain resistance and weather resistance. P:\YPW\ETERNAL-CHINESE\91028SP.DOC -10- 1252862 [Simple diagram of the drawing] Figure 1 (A) and Figure 1 (B) represent the resin composition The stain resistance test results of the object. Figure 2 represents the financial test results of the resin composition. P:\YPW\ETERNAL-CHINESE\91028SP.DOC -11 -

Claims (1)

1252|绍卿48 Patent Application Replacement of Chinese Patent Application (June 1994) Pickup, Patent Application Range: An aqueous resin composition comprising a polymer and an aqueous medium, the special 2 is the polymer system It is prepared by copolymerizing a fluorocarbon resin with a monomer containing a double bond, wherein the content of the fluorocarbon resin is 4 to 5 % by weight based on the weight of the polymer, and the monomer content of the double bond is based on the weight of the polymer. Calculated, 50-95% by weight. 2. A resin composition as claimed in claim 5, wherein the gas-soluble resin is a fluoroethylene/tetrafluoroethylene/hexafluoropropylene copolymer or a tetrafluoroacetam/hexafluoropropylene copolymer. 3. The resin composition of the ninth aspect of the patent application, wherein the fluorocarbon resin contains ϊ '1 〇 〇 〇 以 以 0 0 • • • • • • • • • • • • • • • • 树脂 树脂 树脂 树脂 树脂 树脂 树脂 树脂 树脂 树脂 树脂The single system containing a double bond is selected from the group consisting of a (meth)acrylic monomer, a third ethylene carbonate monomer, a vinyl acetate monomer, and a styrene monomer, and a mixture thereof. 5. The resin composition of claim 1, wherein the monomer content of the double bond is 70 to 90% by weight based on the weight of the polymer. The resin composition of claim 1, wherein the aqueous medium is deionized water. 7 The resin composition of claim 1, wherein the polymer has a break conversion temperature of 10 to 70 °C. 8. The resin composition of the κ σ patent application, wherein the polymer has a Poisson conversion temperature of 30-60 °C. 9. Ten architectural coatings comprising a resin composition as in claim 1 of the patent application. 1252862 1 A method of coating a surface of a substrate comprising applying a resin composition as in item 1 of the patent application to a surface of a substrate. 11. The method of claim 10, wherein the substrate is a building inner and outer wall 0 O:\9r\91028-940622.DOC