Emulsion paint type damping coatings

Patent metadata

Field	Value
Publication number	US-9458328-B2
Application number	US-60093308-A
Country	US
Kind code	B2
Filing date	May 20, 2008
Priority date	May 23, 2007
Publication date	Oct 4, 2016
Grant date	Oct 4, 2016

Abstract

Emulsion paint type damping coatings show an excellent film forming property even if it leaves at low temperature from 5 to 20° C. It does not generate a defective coated film like swellings after baking drying and brings out an excellent damping performance within a range of 20 to 60° C. That is, it contains one or more than two kinds of organic chemicals within a range of 0.5% to 5% by weight in total and the MFT, the minimum film forming temperature of the entire resin emulsion is within a range of 5 to 15° C. and the boiling point for a film forming assistant is within a range of 150 to 240° C., thus, it enables to obtain an excellent film forming property at 5° C. and even in baking drying and does not generate a defective coated film like swellings as well. As a result, emulsion paint type damping coatings bring out an excellent damping performance within a range of 20 to 60° C.

First claim

The invention claimed is:

1. An emulsion paint type damping coating comprising:
a resin emulsion having a total amount within a range of 18% to 26% by weight,
an organic film forming assistant having a total amount within a range of 0.5 to 5% by weight, and
an inorganic filler;
wherein the resin emulsion is selected from at least one of a (meth)acrylic resin emulsion, a (meth)acrylic ester resin emulsion, an acryl-styrene resin emulsion, a styrene-butadiene resin emulsion, a styrene-butadiene-latex emulsion, a vinyl acetate resin emulsion, an ethylene-vinyl acetate resin emulsion, an ethylene-acryl resin emulsion, an epoxy resin emulsion, a urethane resin emulsion, a phenol resin emulsion, a polyester resin emulsion and an acrylonitrile-butadiene-latex emulsion,
the minimum film forming temperature of the resin emulsion is within a range of 5 to 15° C.,
the boiling point of the film forming assistant is within a range of 150 to 240° C., and
wherein the film forming assistant is selected from at least one of an ethylene glycol mono-t-butyl ether, an ethylene glycol mono propyl ether, a dimethyl dicarboxylate, a 3-methyl-3-methoxy butanol, and a 2-butoxy ethanol.

2. The emulsion paint type damping coating according to claim 1 , wherein the filler is selected from at least one of a calcium carbonate, a magnesium carbonate, a barium sulfate, a clay, a talc, a mica, a diatomaceous earth, an aluminous, a gypsum, a cement, a slag powder, a white sand sediment powder, a glass powder, a graphite, a vermiculite, a kaolinite and a zeolite.

3. The emulsion paint type damping coating according to claim 1 , wherein the total amount of all the resin emulsions to be mixed in the emulsion paint type damping coating is within a range of 20% to 24% by weight.

4. The emulsion paint type damping coating according to claim 3 , wherein the inorganic filler is mixed within a range of 45% to 55% by weight in the emulsion paint type damping coating.

5. The emulsion paint type damping coating according to claim 1 , wherein the film forming assistant is selected from at least one of an ethylene glycol mono-t-butyl ether, an ethylene glycol mono propyl ether, a dimethyl dicarboxylate, and a 3-methyl-3-methoxy butanol.

Assignees

• Teramoto Masazumi
• Maeda Hirotaka
• Kawai Junichi
• Ohashi Yutaka
• Aisin Kako Kk
• Toyota Motor Co Ltd

Inventors

• Teramoto Masazumi
• Maeda Hirotaka
• Kawai Junichi
• Ohashi Yutaka

Classifications

• C09D5/028 Primary

  Pigments; Filters · CPC title

• C09D5/02

  Emulsion paints {including aerosols} · CPC title