Expandable polymeric coating compositions

Claim 2

An expandable polymeric coating composition for admixture with paints, dyes and inks to form an expandable chemical coating upon the application of heat comprising: a first forming binder polymer latex normally in the form of a polymeric dispersion in water to serve as a binder for said composition; a dispersing agent to serve as a dispersant for expandable volatile substances encapsulated in a monomeric film forming polymer; a plurality of spheres each of which encapsulates at least one expandable volatile substance in a monomeric film forming polymer dispersed within said first film forming binder polymer latex; a defoaming agent to prevent excessive foaming when heat is applied to said spheres; a bridge solvent to provide compatability with the substance into which said polymeric compositions will be mixed and to provide a wetting of said spheres to provide a homogeneous mixture; a thickener to increase the viscosity of the composition to the desired level, to give stability to mixtures and to give suspending action to said spheres.

Claim 3

The expandable polymeric coating composition of claim 1 wherein said film forming binder polymer latex is selected from the following: ______________________________________ polyethylene polypropylene polyethylene vinyl acetate natural rubber 1,4 polyisoprene polyacrylonitrile polyvinyl fluoride polyvinylidene chloride polyvinylidene fluoride polymonochloride fluoroethylene polytetrafluoroethylene polychloroprene acrylonitrile-butadiene-styrene terpolymer polyvinyl butyral polystyrene polyvinyl acetate polyvinyl alcohol poly-a-methyl styrene butadiene-styrene copolymer polymethacrylate polymethyl-a-cyanoacrylate ethyl vinyl ether and maleic anhydride polymethyl-vinylether copolymer of styrene and ethyl acrylate copolymers of styrene and polyvinylidene chloride vinylidene chloride copolymers of butylacrylate copolymers of 2-ethyl hexyla- and vinylacetate crylate acrylonitrile copolymer of methyl methacrylate and ethylacrylate copolymers methylmethacry- terpolymers of acrylinitrile late & acrylonitrile butylacrylate vinylacetate terpolymers of acryloni- 2-ethylhexylacrylate triles vinylacetate terpolymers of butylacrylate acrylonitriles ethylacrylate copolymers of vinylidene acrylonitrile chloride copolymers of vinylidene copolymers of vinylidene chloride chloride & acrylonitrile & ethyl acrylate polyurethane epoxies polycarbonates polyesters polyamides urea formaldehyde phenol-formaldehyde ______________________________________

Claim 4

The expandable polymeric coating composition of claim 1 wherein the dispersant is selected from the following group: benzyl-phenyldimethyl ammonium salts, nephlanic acid salts, alkylacryl-sulfonates, sulfamated oils, hydroxylakysulfamide, and hydroxyalkyl phosphates.

Claim 5

The expandable polymeric coating composition of claim 1 wherein said encapsulated substances comprise one or more substances from the following group: benzene sulfohydrazide isobutane.

Claim 6

The expandable polymeric coating composition of of claim 1 further including a plasticizer in the form of a ter-polymer latex wherein said terpolymer latex comprises: an emulsion polymerization of the following monomers 30 parts 2-ethyl hexyl acrylate, 30 parts butyl acrylate, and 40 parts of ethyl acrylate, at 50% solids.

Claim 7

The expandable polymeric coating composition of claim 1 wherein said spheres are formed by reaction from 100 parts of demineralized water, 15 parts of colloidal silica, 15 parts of benzene sulfohydrazide, 2.8 parts of hydroxy ethyl phosphate, 100 parts of vinylidene chloride, 15 parts of acrylonitrile, 5 parts of methacrylic acid, 5 parts of ethyl acrylate, and 0.4 parts of benzoyl peroxide.

Claim 8

The expandable polymeric coating composition of claim 1 wherein said spheres are made by "seed" emulsion polymerization by reacting 100 parts of dimineralized water, 14 parts of colloidal silica, 8 parts of benzene sulfohydrazide, 8 parts of Isobutane, 1.5 parts hydroxyl ethyl phosphate, 2.5 parts of nonionic surfactant, 100 parts of vinylidene chloride, 15 parts of acrylonitrile, 5 parts of methacrylic acid, 2 parts of ethyl acrylate, and 0.4 parts of benzoyl peroxide catalyst.

Claim 9

The expandable polymeric coating composition of claim 1 in which said spheres are made by "seed" emulsion polymerization by reacting 100 parts of dimeralized water, 12 parts of colloidal silica, 12 parts of benzene sulfo hydrazide 4 parts of isobutane, 1.75 parts of hydroxy eithyl phosphate, 2.3 parts of n-octyl phenol ethylene oxide condensate, 80 parts of vinylidene chloride, 15 parts of butyl acrylate, 0.4 parts of benzoyl peroxide catalyst.

Claim 10

The expandable polymeric composition of claim 5 for admixture with paints wherein said composition includes in parts by weight: ______________________________________ spheres 17.0 water 41.73 hydroxy ethyl cellulose thickener 0.2 hydroxy ethyl phosphate 0.17 butylene glycol 8.7 terpolymer latex 9.2 acrylic latex 23.0 ______________________________________

Claim 11

The expandable polymeric coating composition of claim 9 wherein said acrylic latex is made by reacting by means of emulsion polymerization the following monomers, 95 parts ethyl acrylate, 2 parts n-methanol acryl amide, 1.0 part acrylic acid, 2 parts acrylonitrile.

Claim 12

The expandable polymeric coating composition of claim 6 wherein said composition comprises in parts by weight: ______________________________________ spheres 17.0 water 44.88 hydroxy ethyl cellulose thickener 0.17 butylene glycol 8.7 terpolymer latex 9.2 acrylic latex 23.0 ______________________________________

Claim 13

The expandable polymeric coating composition of claim 9 further admixed with one to two parts paint and heated for 180 seconds at 225° F.

Claim 14

The expandable polymeric coating composition of claim 12 further admixed with a quantity of paint and said coating expanded by a suitable heat source for 180 seconds at 225° F.

Claim 15

The expandable polymeric coating composition of claim 1 comprising in parts by weights: ______________________________________ spheres 22.0 water 46.0 hydroxy ethyl cellulose 0.15 acrylic thickener 2.0 precipitated calcium caronate 12 terpolymer latex 9 phosphate ester 4.0 ammonium stearate 2.0 acrylic latex 40.0 ______________________________________

Claim 16

The expandable polymeric coating composition of claim 5 comprising in parts by weight: ______________________________________ water 48.42 hydroxy ethyl phosphate 0.2 nonionic surfactant 0.4 bentonite clay 12.0 aluminum silicate 12.0 propylene glycol 2.4 glycol stearate 1.3 terpolymer latex 9.0 spheres 27.0 acrylic latex 40.0 acrylic thickener 2.0 hydroxy ethyl cellulose 0.12 ______________________________________

Claim 17

The expandable polymeric coating composition of claim 15 further including said coating exposed to heat for 300 seconds at 240° F.

Claim 18

The expandable polymeric coating composition of claim 1 further comprising in parts by weight: ______________________________________ water 70.0 hydroxy ethyl phosphate 3.0 kaolin caly 30.0 precipatated calcium carbonate 30.0 glycol stearate 3.0 butylene glycol 9.0 terpolymer latex 11.0 spheres 23.0 styrenebutadiene latex 43.0 hydroxy ethyl cellulose 0.2 ______________________________________

Claim 19

The expandable polymeric coating composition of claim 17 further including said coating heated for 300 seconds at 250° F.

Claim 20

The expandable polymeric coating composition of claim 8 comprising in parts by weight: ______________________________________ water 56.2 hydroxy ethyl phosphate 3.0 kaolin clay 20.0 attapulgus clay 20.0 butylene glycol 3.0 terpolymer latex 9.0 spheres 23.0 acrylic latex 40.0 hydroxy ethyl cellulose 0.2 ______________________________________

Claim 21

The expandable polymeric coating composition of claim 19 further including one coat of said composition of 14 mil thickness heated for 300 seconds at 200° F and a second coat of 14 mil thickness heated for 300 seconds at 280° F.

Claim 22

The expandable polymeric coating composition of claim 5 for use as a coating for textile goods comprising in parts by weight; ______________________________________ phosphate ester 130 di octyl phthalate 25 poly oil plasticizer 25 polyvinyl chloride latex 50 kaolin clay 15 spheres 15 mineral oil 5 ______________________________________

Claim 23

The expandable polymeric coating composition of claim 21 further including a coating of 3 to 14 mils in thickness exposed to a temperature of 300° F for 300 seconds.

Claim 24

The expandable polymeric coating composition of claim 8 for use as an arts and crafts paint comprising in parts by weight: ______________________________________ water 36.8 hydroxy ethyl phosphate 3.0 attapulgus clay 10.0 butylene glycol 2.5 glycol stearate 1.0 terpolymer latex 4.5 spheres 18.0 acrylic latex 40.0 defoamer fatty acid 0.4 pigment color 4.0 propylene glycol 1.0 hexanol 2.0 hydroxy ethyl cellulose 0.4 ______________________________________

Claim 25

The expandable polymeric coating composition of claim 23 further including coating a substance and heating said coating for 180 seconds at 240° F.

Claim 26

The expandable polymeric coating composition of claim 8 for use as a texture paint comprising in parts by weight: ______________________________________ water 57.22 hydroxy ethyl phosphate 3.0 butylene glycol 9.0 wood flour 14.0 terpolymer latex 9.0 spheres 23.0 acrylic latex 40.0 hydroxy ethyl cellulose 0.22 ______________________________________

Claim 27

The expandable polymeric coating composition of claim 25 further including a coating exposed to heat of 240° F for 180 seconds.