# US 2019/0315971 A1 · Corrosion resistant compositions and methods

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- Number: US 2019/0315971 A1
- Document ID: US20190315971A1
- Status: Published application
- Kind: A1
- Application number: 16/447,957
- Filed: 2019-06-20
- Published: 2019-10-17
- Earliest claimed: 2016-12-20
- Inventors: Vinod C. Malshe
- Web page: https://patentgrep.com/patent/US20190315971A1

## CPC

- C09D 5/10: containing metal dust
- C09D 5/103: {containing Al}
- B32B 27/32: comprising polyolefins {(comprising vinyl (co)polymers or acrylic (co)polymers B32B27/30)}
- C08J 3/09: in organic liquids
- C08J 3/11: from solid polymers
- C09D 5/002: {Priming paints (C09D5/08 takes precedence)}
- C09D 7/00: Features of coating compositions, not provided for in group C09D5/00 (driers C09F9/00); Processes for incorporating ingredients in coating compositions
- C09D 7/20: Diluents or solvents
- C09D 7/61: inorganic
- C09D 7/70: {characterised by shape, e.g. fibres, flakes or microspheres}
- C09D 115/00: Coating compositions based on rubber derivatives (C09D111/00, C09D113/00 take precedence)
- C09D 123/06: Polyethylene
- C09D 123/12: Polypropene
- C09D 167/02: Polyesters derived from dicarboxylic acids and dihydroxy compounds (C09D167/06 takes precedence)
- C09D 177/02: Polyamides derived from omega-amino carboxylic acids or from lactams thereof (C09D177/10 takes precedence)
- C09D 177/06: Polyamides derived from polyamines and polycarboxylic acids (C09D177/10 takes precedence)
- C09D: COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR (cosmetics A61K; processes for applying liquids or other fluent materials to surfaces, in general, B05D; staining wood B27K5/02; glazes or vitreous enamels C03C; natural resins, French polish, drying-oils, driers, turpentine, per se, C09F; polishing compositions other than French polish, ski waxes C09G; adhesives or use of materials as adhesives C09J; materials for sealing or packing joints or covers C09K3/10; materials for stopping leaks C09K3/12; processes for the electrolytic or electrophoretic production of coatings C25D)
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- C08J: WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H (working, e.g. shaping, of plastics B29)

## Abstract

Coatings for a substrate include a paint or a lacquer and about 0.1% or more particles of a bi-axially oriented metalized polymer film. The film may not be soluble in a solvent or a dispersion medium of the paint or the lacquer. Coatings may be formed by bi-axially orienting a polymer film to obtain a bi-axially oriented polymeric film having thickness of at least 1μ followed by a vacuum metalizing to obtain a bi-axially oriented metalized polymer film, shredding the bi-axially oriented metalized polymer film to form the particles to at least 1×1 mm, selecting a solvent as system or a dispersion medium of paint in which the particles of the polymer film is not substantially soluble, preparing a paint or a coating composition by using selected solvent, and dispersing the shredded particles of oriented metalized polymer film in the paint as a primer, under coat, or top coat.

## Claims

### Claim 1

A corrosion-resistant coating composition comprising:
a paint or a lacquer; and
at least 0.1% particles of a bi-axially oriented metalized polymer film, wherein the film is not soluble in a solvent or a dispersion medium of the paint or the lacquer.

### Claim 2 (depends on 1)

The composition of claim 1, wherein the particles of the film are up to 10% of the composition.

### Claim 3 (depends on 1)

The composition of claim 1, wherein the thickness of the film is at least 1μ.

### Claim 4 (depends on 1)

The composition of claim 1, wherein the thickness of the film is in the range of about 1μ to about 200μ.

### Claim 5 (depends on 4)

The composition of claim 4, wherein the thickness of the film is in the range of about 1μ to about 5μ.

### Claim 6 (depends on 4)

The composition of claim 4, wherein the particles of the film have dimensions of at least 1×1 mm.

### Claim 7 (depends on 1)

The composition of claim 1, wherein the polymer of the film is at least one of,
polyethylene terephthalate,
aliphatic or aromatic polyamides,
aliphatic or aromatic polyimides,
polysulfones,
polypropylene,
high, low, or medium density polyethylene,
linear low-density polyethylene,
polystyrene,
polyvinyl chloride,
polyvinylidene chloride,
PVDF, and
PTFE.

### Claim 8 (depends on 1)

The composition of claim 1, wherein the polymer of the film is bi-axially oriented and further metalized with vacuum or electro deposition or electroless coating.

### Claim 9 (depends on 1)

The composition of claim 1, wherein the metal of the film is at least one of,
aluminium,
copper,
nickel,
silver,
gold,
palladium,
platinum,
iridium,
titanium,
niobium,
zirconium,
hafnium or molybdenum,
titanium nitride, silicon carbide, or tungsten carbide, and
diamond or graphene.

### Claim 10 (depends on 1)

The composition of claim 1, wherein the solvent or the dispersion medium is at least one of,
water,
mineral turpentine,
xylene,
toluene,
CIX fraction,
butanol,
butyl acetate,
ethanol,
ethyl acetate,
methyl ethyl ketone,
cyclohexanone,
methyl iso-butyl ketone,
isophorone,
mesityl oxide ethylene glycol mono ethyl ether, ethylene glycol mono butyl ether, and acetates of mesityl oxide ethylene glycol mono ethyl ether and ethylene glycol mono butyl ether,
dimethylformamide,
dimethylacetamide,
sulfolane,
dimethylsulfoxide,
ethyl lactate,
dioxane,
tetrahydrofuran,
alpha-pinene,
delta(3)cerene,
longifolin or solvents from esters, and
ester alcohol acetates, alcohol propylene glycol ethers, and acetates of ester alcohol acetates and alcohol propylene glycol ethers.

### Claim 11

A method manufacturing corrosion-resistant coating composition having a paint or a lacquer and at least 0.1% particles of a bi-axially oriented metalized polymer film, the film not being soluble in a solvent or a dispersion medium of the paint or the lacquer, the method comprising:
bi-axially orienting a polymer film to obtain a bi-axially oriented polymeric film having thickness of at least 1μ followed by a vacuum metalizing to obtain a bi-axially oriented metalized polymer film;
shredding the bi-axially oriented metalized polymer film to form the particles to at least 1×1 mm;
selecting a solvent as system or a dispersion medium of paint in which the particles of the polymer film is not substantially soluble;
preparing a paint or a coating composition by using selected solvent; and
dispersing the shredded particles of oriented metalized polymer film in the paint as a primer, an under coat, or a top coat.

### Claim 12 (depends on 11)

The method of claim 11, wherein the paint as the primer has a pigment volume concentration of about 40%, the paint as the under coat has a pigment volume concentration of about 30%, and the paint as the top coat has a pigment volume concentration of about 15% to about 20%.

### Claim 13 (depends on 12)

The method of claim 12, wherein the pigments include at least one of,
titanium dioxide or iron oxide,
calcium carbonate, talc, or silica extenders,
a film former resin of alkyd resin, nitro cellulose, epoxy, polyester, chlorinated rubber, or vinyl resins, and
a binder derived from natural vegetable oils or petroleum products.

### Claim 14 (depends on 11)

The method of claim 11, wherein the solvent or the dispersion medium is at least one of,
water,
mineral turpentine,
xylene,
toluene,
CIX fraction,
butanol,
butyl acetate,
ethanol,
ethyl acetate,
methyl ethyl ketone,
cyclohexanone,
methyl iso-butyl ketone,
isophorone,
mesityl oxide ethylene glycol mono ethyl ether, ethylene glycol mono butyl ether, and acetates of mesityl oxide ethylene glycol mono ethyl ether and ethylene glycol mono butyl ether,
dimethylformamide,
dimethylacetamide,
sulfolane,
dimethylsulfoxide,
ethyl lactate,
dioxane,
tetrahydrofuran,
alpha-pinene,
delta(3)cerene,
longifolin or solvents from esters, and
ester alcohol acetates, alcohol propylene glycol ethers, and acetates of ester alcohol acetates and alcohol propylene glycol ethers.

### Claim 15 (depends on 11)

The method of claim 11, wherein the paint or coating composition includes additives of a thixotropic agent, associative thickeners and/or a drying agent.

### Claim 16

A coated substrate comprising:
the substrate;
a paint or a lacquer; and
at least 0.1% particles of a bi-axially oriented metalized polymer film, wherein the film is not soluble in a solvent or a dispersion medium of the paint or the lacquer, wherein the substrate has corrosion resistance of at least 500 hours by the ASTM B 117 salt spray test.

### Claim 17 (depends on 16)

The substrate of claim 16, wherein the substrate is at least one of mild steel, aluminium, copper, silver, and wood.
