Methods for applying sound dampening and/or aesthetic coatings and articles made thereby
View Patent ↗A method for providing a coated vehicle transparency, includes the steps of: (a) providing a vehicle transparency having a vision area and a non-vision area; and (b) applying a sound dampening coating composition to at least a portion of the non-vision area of the transparency. The coating composition can an aqueous dispersion of polymeric microparticles prepared from components including: (i) a functional material selected from (a) a nitrile functional material, (b) an amide functional material, and (c) a carbamate functional material; (ii) a polyoxyalkylene acrylate; and (iii) a filler material.
1. A method for providing a coated vehicle transparency, comprising the steps of:
a) providing a vehicle transparency having a glass substrate with a peripheral area; and
b) applying a coating composition to at least a portion of the peripheral area of the transparency to reduce noise permeating into a vehicle,
wherein the coating composition comprises an aqueous dispersion of polymeric microparticles prepared from components comprising: (i) a functional material selected from (a) a nitrile functional material, (b) an amide functional material, and (c) a carbamate functional material; (ii) a polyoxyalkylene acrylate; and (iii) a filler material; and further comprising at least partially drying the coating composition to provide a coating upon the transparency for inhibiting sound transmission therethrough.
2. The method of claim 1 , wherein the functional material is a nitrile functional material selected from acrylonitrile, methacrylonitrile, esters thereof, copolymers thereof mixtures thereof.
3. The method of claim 1 , wherein the polyoxyalkylene acrylate is selected from alkoxy polyoxyethylene acrylates, alkoxy polyoxyethylene methacrylates, alkoxy polyoxypropylene acrylates, alkoxy polyoxypropylene methacrylates, alkoxy polyoxyethyleneoxypropylene acrylates, alkoxy polyoxyethyleneoxypropylene methacrylates, alkoxy polyoxybutylene acrylates, alkoxy polyoxybutylene methacrylates, copolymers thereof and mixtures thereof.
4. The method of claim 1 , wherein the polymeric microparticles comprise the reaction product or a blend of components comprising: (i) a nitrile functional material; and (ii) the polyoxyalkylene acrylate.
5. The method of claim 1 , wherein the filler material comprises about 20 to about 90 weight percent of the coating composition on a basis of total weight of the coating composition.
6. The method of claim 1 , wherein the coating composition further comprises a polymeric film-forming material different from the polymeric microparticles, and is selected from polyepoxides, polyurethanes, polyamides, polyesters, polyacrylates, polyvinyl chlorides, and mixtures thereof and copolymers thereof.