US4241141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removable coatings which prevent penetration from felt tip marking inks
Assignee: SC Johnson Commercial Markets Inc
•
Filing: 1979-03-19
•
Granted: 1980-12-23
•
Expires: 1999-03-19
Abstract
Abstract A method for protecting painted and other surfaces from being permanently marked by graffiti and particularly markings of flexible tip permanent marking pens comprising coating the surface with a removable composition consisting essentially of from 10 to 35% by weight of a polymer having a monomer content of from 25-70% by weight of a hard monomer, 15-50% by weight of a soft monomer, and 15-30% by weight of an acid monomer, the polymer having been solubilized with sodium hydroxide, potassium hydroxide, or mixtures thereof, from 0-15% of a potassium or sodium salt of a maleic anhydride adduct with a mixed alpha olefin having chain lengths of more than 30 carbon atoms, from 0 to 2% of a coalescing solvent selected from the group consisting of diethylene glycol monoethyl ether, diethylene glycol monobutyl ethyl and mixtures thereof; from 0 to 3% of defoamers, leveling agents, and mixtures thereof; and 90 to 45% by weight water, the composition having an MFT of less than 30 DEG C. and a pH of from 7.0 to 10.0 and allowing the coating to dry on the surface to be protected.
Inventors
- 👤 Douglas W. Dill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:56
CPC Classifications
B; B05; B05D; B05D5/00; C; C09; C09D; C09D133/00; C09D133/04; C09D133/06; C09D133/062; C09D133/064; C09D5/00; C09D5/008; B05D1/00; B05D1/32; B05D1/322; B05D1/325; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
223 words
A method of protecting surfaces from being permanently marked by graffiti comprising: (a) Coating the surface to be protected with a removable barrier composition consisting essentially of; (i) from 10 to 35% by weight of a polymer having a monomer content of from 25 to 70% by weight hard monomer, from 15 to 50% by weight of a soft monomer and from 15 to 30% by weight of an acid monomer, the polymer having been solublized with sodium hydroxide, potassium hydroxide or mixtures thereof; (ii) from 0 to 15% of a plasticizer selected from the group consisting of the sodium salt of a maleic anlydride adduct with a mixed alpha olefin having chain lengths of more than 30 carbon atoms, the potassium salt of a maleic anlydride adduct with a mixed alpha olefin having chain lengths of more than 30 carbon atoms and mixtures thereof; (iii) from 0 to 2% of a coalescing solvent selected from the group consisting of diethylene glycol monoethyl ether, diethylene glycol monobutyl ether and mixtures thereof; (iv) from 0 to 3% of defoamers, leveling agents and mixtures thereof; and (v) from 90 to 45% by weight water, the composition having an MFT of less than 30° C. and a pH of from 7.0 to 10.0; and (b) Allowing the coating to dry on the surface to be protected.
Claim 2
Independent Claim
223 words
A method of protecting surfaces from being permanently marked by graffiti comprising: (a) Coating the surface to be protected with a removable barrier composition consisting essentially of; (i) from 10 to 35% by weight of a polymer having a monomer content of from 25 to 70% by weight hard monomer, from 15 to 50% by weight of a soft monomer and from 15 to 30% by weight of an acid monomer, the polymer having been solublized with sodium hydroxide, potassium hydroxide or mixtures thereof; (ii) from 0 to 15% of a plasticizer selected from the group consisting of the sodium salt of a maleic anlydride adduct with a mixed alpha olefin having chain lengths of more than 30 carbon atoms, the potassium salt of a maleic anlydride adduct with a mixed alpha olefin having chain lengths of more than 30 carbon atoms and mixtures thereof; (iii) from 0 to 2% of a coalescing solvent selected from the group consisting of diethylene glycol monoethyl ether, diethylene glycol monobutyl ether and mixtures thereof; (iv) from 0 to 3% of defoamers, leveling agents and mixtures thereof; and (v) from 90 to 45% by weight water, the composition having an MFT of less than 30° C. and a pH of from 7.0 to 10.0; and (b) Allowing the coating to dry on the surface to be protected.
Claim 3
Dependent Claim
12 words
The method of claim 1 wherein the polymer is an emulsion polymer.
Claim 4
Dependent Claim
29 words
The method of claim 1 wherein the polymer has a monomer content of 25 to 60% hard monomer; 25 to 50% soft monomer and 15 to 30% acid monomer.
Claim 5
Dependent Claim
16 words
The method of claim 1 wherein the polymer has a Mw of from 2,000 to 50,000.
Claim 6
Independent Claim
15 words
The method of claims 1 or 3 wherein the polymer is solublized using potassium hydroxide.
Claim 7
Independent Claim
144 words
A method of protecting surfaces from being permanently marked by griffiti comprising: (a) Coating the surface to be protected with a removable barrier coating consisting essentially of: (i) from 10 to 35% by weight of a polymer having a monomer content of 25 to 60% hard monomer, 25 to 50% soft monomer and 15 to 30% acid monomer, the polymer having been solublized with sodium hydroxide, potassium hydroxide or mixtures thereof; (ii) from 0 to 2% of a coalescing solvent selected from diethylene glycol monoethyl ether, diethylene glycol monobutyl ether and mixtures thereof; (iii) from 0 to 3% of defoamers, leveling agents, plasticizers and mixtures thereof; and (iv) from 90 to 60% water, the composition having an MFT of less than 30° C. and a pH of from 7.0 to 10.0; and (b) Allowing the coating to dry on the surface to be protected.
Claim 8
Independent Claim
144 words
A method of protecting surfaces from being permanently marked by griffiti comprising: (a) Coating the surface to be protected with a removable barrier coating consisting essentially of: (i) from 10 to 35% by weight of a polymer having a monomer content of 25 to 60% hard monomer, 25 to 50% soft monomer and 15 to 30% acid monomer, the polymer having been solublized with sodium hydroxide, potassium hydroxide or mixtures thereof; (ii) from 0 to 2% of a coalescing solvent selected from diethylene glycol monoethyl ether, diethylene glycol monobutyl ether and mixtures thereof; (iii) from 0 to 3% of defoamers, leveling agents, plasticizers and mixtures thereof; and (iv) from 90 to 60% water, the composition having an MFT of less than 30° C. and a pH of from 7.0 to 10.0; and (b) Allowing the coating to dry on the surface to be protected.
Claim 9
Dependent Claim
35 words
The method of claim 6 wherein the polymer is present in an amount of from 15 to 25% by weight and the water is present in an amount of from 90 to 65% by weight.
Claim 10
Dependent Claim
16 words
The method of claim 6 wherein the polymer has a Mw of from 2,000 to 50,000.
Claim 11
Dependent Claim
13 words
The method of claim 6 wherein the polymer is solublized using potassium hydroxide.
Claim 12
Dependent Claim
29 words
The method of claim 6 wherein the polymer has a monomer content of 20 to 60% hard monomer; 25 to 50% soft monomer and 15 to 30% acid monomer.
Claim 13
Dependent Claim
12 words
The method of claim 6 wherein the polymer is an emulsion polymer.
References Cited (Backward Citations)
US2606165A
Cited
US2889299A
Cited
US3503916A
Cited
US3697466A
Cited
US3467610A
Cited
US4064092A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-12-23 | 1984-06-23 | 1984-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-23 | 1988-06-23 | 1988-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-23 | 1992-06-23 | 1992-12-23 | $7700.00 | Window Closed / Lapsed |