JP-2022531907-A5 -

Dates

Publication Date

20230523

Application Date

20200515

Description

The above description illustrates specific embodiments of the present invention and does not imply any limitation to its implementation. The appended claims, including all equivalents, are intended to define the scope of the invention. Some embodiments of the present invention are described in the following sections [1]–[17]. [1] Quaternary ammonium silane salts, Solvent and, A coating composition that imparts water repellency to the windshield from an elastomer hydrophobic applicator of a wiper blade insert, including the following: [2] The composition described in item 1, further comprising mineral spirits. [3] The composition according to item 1, further comprising a solid lubricant. [4] The composition according to item 1, wherein the quaternary ammonium silane salt is a chloride. [5] The composition according to item 1, wherein the quaternary ammonium silane is present in an amount of 0.5 to 75 percent by total weight. [6] The composition according to any one of items 1 to 5, wherein the solvent comprises a C1 to C4 alcohol . [7] The composition according to any one of items 1 to 5, wherein the solvent is isopropanol. [8] The composition according to any one of items 1 to 5, wherein the solvent is present in an amount of 25% to 99.5% by total weight. [9] The composition according to item 2, wherein one or more of the aforementioned mineral spirits are present in a total weight percentage of 15 percent. [10] The composition according to item 3, wherein the solid lubricant is graphite powder. [11] The composition according to item 3, wherein the solid lubricant is present in an amount of 0 to 30 total weight percent. [12] This is a kit for creating a hydrophobic coating on a surface. An applicator having an applicator surface and a non-volatile layer formed from any one of items 1 to 5, wherein the non-volatile layer is attached to the applicator surface or applied to the applicator surface from a container; and instructions for use for bringing the applicator surface into contact with the surface to create a hydrophobic film having a water contact angle of 60 degrees or more. A kit that includes the following: [13] A hydrophobic elastomer substrate molded as a wiper blade insert that is fitted to the windshield wiper arm and engage with the windshield, A non-volatile layer having a thickness of 0.5 microns to 500 microns, formed by the evaporation of the solvent from the composition described in item 1, A wiper blade equipped with [a specific feature]. [14] The wiper blade according to item 13, wherein the non-volatile layer is applied to both sides of the wiping grip of the substrate in an amount ranging from 0.001 g to 0.1 g per centimeter of length per side. [15] The wiper blade according to item 13, wherein the non-volatile layer has storage stability for more than one month at a temperature of -50°C to 65°C. [16] The wiper blade according to item 13, wherein the base material is formed of at least chloroprene rubber, natural rubber, silicone, or any combination thereof. [17] A method for activating the windshield, The windshield is brought into contact with a wiper blade insert coated with any one of the compositions described in item 1 to 5, The windshield is activated by wiping it with wet, dry, or a combination of wet and dry wipes within 2000 wipe cycles until it achieves a water contact angle of over 60 degrees, thereby activating the windshield. Methods that include...