US4561992A — Aerosol cleaning agent for textile surfaces

Claim 1

Independent Claim 105 words

An aerosol cleaning agent for textile surfaces, particularly for the cleaning of textile upholstery, comprising a propellant, and approximately 65 to 75 wt% of an active substance comprising: suspended sodium aluminum silicate particles which are buffered by acid to a pH range of about 7-8; a plasticized urea-formaldehyde resin foam having open-cell foam particles in particle sizes between limit values of about 0.005 and 0.120 mm and with a density (in dry non-comminuted condition) of about 50 plus or minus 10 kg/m 3 , said open-cell urea-formaldehyde resin foam particles perform a carrier transport function for said sodium aluminum silicate particles producing a piggy-back effect.

Claim 2

Dependent Claim 105 words

An aerosol cleaning agent for textile surfaces, particularly for the cleaning of textile upholstery, comprising a propellant, and approximately 65 to 75 wt% of an active substance comprising: suspended sodium aluminum silicate particles which are buffered by acid to a pH range of about 7-8; a plasticized urea-formaldehyde resin foam having open-cell foam particles in particle sizes between limit values of about 0.005 and 0.120 mm and with a density (in dry non-comminuted condition) of about 50 plus or minus 10 kg/m 3 , said open-cell urea-formaldehyde resin foam particles perform a carrier transport function for said sodium aluminum silicate particles producing a piggy-back effect.

Claim 3

Dependent Claim 37 words

The aerosol cleaning agent according to claim 1, wherein said active substance comprises about 1-30 wt% of said suspended sodium aluminum silicate particles and about 2-15 wt% of the urea-formaldehyde resin foam with respect to dry weight.

Claim 4

Dependent Claim 32 words

The aerosol cleaning agent according to claim 1, wherein said propellant comprises 35 wt% of said aerosol cleaning agent, and wherein said active substance comprises 65 wt% of said aerosol cleaning agent.

Claim 5

Dependent Claim 27 words

The aerosol cleaning agent according to claim 3, wherein the density of the NaAl silicate particles at 20° Celsius is approximately 1.055 to 1.065 g/cm 3 .

Claim 6

Dependent Claim 39 words

The aerosol cleaning agent according to claim 1, wherein said active substance further comprises a low-molecular alcohol as a solvent in an amount of about 2-10 wt%, a silicone defoamer in an amount of about 0.01 to 1.0 wt%.

Claim 7

Dependent Claim 31 words

The aerosol cleaning agent according to claim 1, wherein the particle size distribution of the urea-formaldehyde foam is approximately: less than 0.110 mm: 100 wt% less than 0.080 mm: 90 wt%.

Claim 8

Dependent Claim 34 words

The aerosol cleaning agent according to claim 1, wherein the particle size distribution of the sodium aluminum silicate particles is approximately as follows: less than 0.080 mm: 100 wt% average particle size 0.012-0.010 mm.

Claim 9

Dependent Claim 99 words

An aerosol cleaning agent for textile surfaces, particularly for the cleaning of textile upholstery, consisting essentially of 1 to 30% by weight (relative to the active substance solids content) of suspended NaAl silicate particles, about 2 to 15% by weight (relative to the active-substance solids content) of particles of urea-formaldehyde resin foam which open-cell foam having a bulk weight (in dry, uncomminuted condition) of about 40 to 60 kg/m 3 , isopropanol, acetic acid, silicone defoamer, and water, said open-cell urea-formaldehyde resin foam particles performing a carrier transport function for said sodium aluminum silicate particles producing a piggy-back effect.

Claim 10

Dependent Claim 99 words

An aerosol cleaning agent for textile surfaces, particularly for the cleaning of textile upholstery, consisting essentially of 1 to 30% by weight (relative to the active substance solids content) of suspended NaAl silicate particles, about 2 to 15% by weight (relative to the active-substance solids content) of particles of urea-formaldehyde resin foam which open-cell foam having a bulk weight (in dry, uncomminuted condition) of about 40 to 60 kg/m 3 , isopropanol, acetic acid, silicone defoamer, and water, said open-cell urea-formaldehyde resin foam particles performing a carrier transport function for said sodium aluminum silicate particles producing a piggy-back effect.

Claim 11

Dependent Claim 18 words

The aerosol cleaning agent according to claim 8, wherein the solids content is from 14 to 15 wt%.

Claim 12

Dependent Claim 139 words

In an aerosol cleaning agent for textile surfaces, the agent comprising a propellant and an active substance comprising about 2 to 15% by weight (relative to the active-substance solids content) of particles of urea-formaldehyde-resin foam having a particle size of less than 0.120 mm, the improvement wherein the urea-formaldehyde-resin foam particles comprise open-cell foam having a bulk weight (in dry, uncomminuted condition) of about 50±10 kg/m 3 , and said active substance further comprising 1 to 30% by weight (relative to the active substance solids content) of a suspended sodium aluminum silicate, buffered by acid to a pH range of about 7-8, the suspended sodium aluminum silicate particles being present in an average particle size of 0.012-0.010 mm, said open-cell urea-formaldehyde resin foam particles performing a carrier transport function for said sodium aluminum silicate particles producing a piggy-back effect.

Claim 13

Dependent Claim 139 words

In an aerosol cleaning agent for textile surfaces, the agent comprising a propellant and an active substance comprising about 2 to 15% by weight (relative to the active-substance solids content) of particles of urea-formaldehyde-resin foam having a particle size of less than 0.120 mm, the improvement wherein the urea-formaldehyde-resin foam particles comprise open-cell foam having a bulk weight (in dry, uncomminuted condition) of about 50±10 kg/m 3 , and said active substance further comprising 1 to 30% by weight (relative to the active substance solids content) of a suspended sodium aluminum silicate, buffered by acid to a pH range of about 7-8, the suspended sodium aluminum silicate particles being present in an average particle size of 0.012-0.010 mm, said open-cell urea-formaldehyde resin foam particles performing a carrier transport function for said sodium aluminum silicate particles producing a piggy-back effect.

Claim 14

Dependent Claim 163 words

A process for cleaning a textile surface comprising applying to said surface an aerosol cleaning agent for textile surfaces comprising from 25 to 35 wt% of a propellant and from 65 to 75 wt % of an active substance, said active substance comprising suspended particles of sodium aluminum silicate which is buffered by acid to a pH range of about 7-8, and a plasticized urea-formaldehyde resin foam having open-cell foam particles in particle sizes between limit values of about 0.005 and 0.120 mm and with a density (in dry non-comminuted condition) of about 50 plus or minus 10 kg/m 3 , and removing said cleaning agent from said textile surface, wherein said open-cell urea-formaldehyde resin foam particles perform a carrier transport function for the sodium aluminum silicate producing a piggy-back effect, and whereby there is the effect that the suitably shaped surface of the open-cell foam particles during their movement also exerts a favorable abrasive action on the fibers of the textile surface.

Claim 15

Dependent Claim 163 words

A process for cleaning a textile surface comprising applying to said surface an aerosol cleaning agent for textile surfaces comprising from 25 to 35 wt% of a propellant and from 65 to 75 wt % of an active substance, said active substance comprising suspended particles of sodium aluminum silicate which is buffered by acid to a pH range of about 7-8, and a plasticized urea-formaldehyde resin foam having open-cell foam particles in particle sizes between limit values of about 0.005 and 0.120 mm and with a density (in dry non-comminuted condition) of about 50 plus or minus 10 kg/m 3 , and removing said cleaning agent from said textile surface, wherein said open-cell urea-formaldehyde resin foam particles perform a carrier transport function for the sodium aluminum silicate producing a piggy-back effect, and whereby there is the effect that the suitably shaped surface of the open-cell foam particles during their movement also exerts a favorable abrasive action on the fibers of the textile surface.

Claim 16

Dependent Claim 34 words

The process according to claim 11, wherein said active substance comprises about 1-30 wt% of said suspended sodium aluminum silicate and about 2-15 wt% of the urea-formaldehyde resin foam with respect to dry weight.

Claim 17

Dependent Claim 37 words

The process according to claim 11, wherein said active substance further comprises a low-molecular alcohol as a solvent in an amount of about 2-10 wt%, a silicone defoamer in an amount of about 0.01 to 1.0 wt%.

Claim 18

Dependent Claim 29 words

The process according to claim 11, wherein the particle size distribution of the urea-formaldehyde foam is approximately: less than 0.110 mm: 100 wt% less than 0.080 mm: 90 wt%.

Claim 19

Dependent Claim 32 words

The process according to claim 11, wherein the particle size distribution of the sodium aluminum silicate particles is approximately as follows: less than 0.080 mm: 100 wt% average particle size 0.012-0.010 mm.

Claim 20

Dependent Claim 12 words

The process according to claim 11, wherein said removing step comprises vacuuming.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1988-12-30	1989-07-01	1989-12-31	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1992-12-30	1993-07-01	1993-12-31	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1996-12-30	1997-07-01	1997-12-31	$7700.00	Window Closed / Lapsed

Aerosol cleaning agent for textile surfaces

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