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US4703000A
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Anti-brick/anti-static compositions useful for treating film surfaces and films coated therewith
Assignee: Image Products Group LLC
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Filing: 1985-09-30
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Granted: 1987-10-27
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Expires: 2005-09-30
Abstract
Abstract Provided herewith is an anti-brick/anti-static composition useful for treating film surfaces. The composition comprises (i) an anionic or cationic surfactant exhibiting anti-static properties, and (ii) a similar charged inorganic particle, e.g., a negatively charged silica or positively charged alumina coated silica, having an average particle size of less than 0.1 micron. Upon coating a film surface with the composition, good anti-static properties are realized without experiencing problems with bricking or blocking of the film. The composition is particularly useful in coating microfilm since it also provides the anti-brick/anti-static properties without deleteriously effecting the viewing capabilities of the film over a wide range of magnifications.
Inventors
- 👤 George R. Hodgins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 03:16
CPC Classifications
C; C09; C09K; C09K3/00; C09K3/16; G; G03; G03C; G03C1/00; G03C1/76; G03C1/85
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
41 words
An anti-brick/anti-static composition useful for treating film surfaces, comprising (i) a surfactant having anti-static properties, which is a quaternary ammonium salt of N,N dimethyl, N-(2-hydroxyethyl)stearamidopropylamine, and (ii) a similar charged inorganic particle having an average particle size less than 0.1 micron.
Claim 2
Dependent Claim
41 words
An anti-brick/anti-static composition useful for treating film surfaces, comprising (i) a surfactant having anti-static properties, which is a quaternary ammonium salt of N,N dimethyl, N-(2-hydroxyethyl)stearamidopropylamine, and (ii) a similar charged inorganic particle having an average particle size less than 0.1 micron.
Claim 3
Dependent Claim
39 words
An anti-brick/anti-static composition useful for treating film surfaces, comprising (i) a cationic surfactant having anti-static properties, and (ii) a similar charged inorganic particle having an average particle size less than 0.1 micron which is a positively charged alumina/silica sol.
Claim 4
Dependent Claim
39 words
An anti-brick/anti-static composition useful for treating film surfaces, comprising (i) a cationic surfactant having anti-static properties, and (ii) a similar charged inorganic particle having an average particle size less than 0.1 micron which is a positively charged alumina/silica sol.
Claim 5
Dependent Claim
28 words
The anti-brick/anti-static composition of claim 1, comprising a similar charged inorganic particle having an average particle size less than 0.1 micron which is a positively charged alumina/silica sol.
Claim 6
Dependent Claim
76 words
An aqueous solution of an anti-brick/anti-static composition useful for treating film surfaces, which composition comprises (i) a cationic surfactant having anti-static properties, and (ii) a similar charged inorganic particle having an average particle size less than 0.1 micron, wherein the amount of the inorganic particle in the solution is such that upon coating a film with the aqueous solution the concentration of the inorganic particle on the film is less than 0.5 gram per square meter.
Claim 7
Dependent Claim
76 words
An aqueous solution of an anti-brick/anti-static composition useful for treating film surfaces, which composition comprises (i) a cationic surfactant having anti-static properties, and (ii) a similar charged inorganic particle having an average particle size less than 0.1 micron, wherein the amount of the inorganic particle in the solution is such that upon coating a film with the aqueous solution the concentration of the inorganic particle on the film is less than 0.5 gram per square meter.
Claim 8
Dependent Claim
72 words
An aqueous solution of an anti-brick/anti-static composition useful for treating film surfaces, which composition comprises (i) a cationic surfactant having anti-static properties, and (ii) a similar charged inorganic particle having an average particle size less than 0.1 micron, wherein the amount of surfactant (i) in the solution ranges from 0.01 to 0.5 weight percent, and the amount of inorganic particle (ii) in the solution ranges from about 0.01 to 0.5 weight percent.
Claim 9
Dependent Claim
72 words
An aqueous solution of an anti-brick/anti-static composition useful for treating film surfaces, which composition comprises (i) a cationic surfactant having anti-static properties, and (ii) a similar charged inorganic particle having an average particle size less than 0.1 micron, wherein the amount of surfactant (i) in the solution ranges from 0.01 to 0.5 weight percent, and the amount of inorganic particle (ii) in the solution ranges from about 0.01 to 0.5 weight percent.
Claim 10
Dependent Claim
46 words
A film comprising a coating of an anti-brick/anti-static composition, which composition comprises (i) a surfactant having anti-static properties wherein the surfactant is a quaternary ammonium salt of N,N dimethyl, N-(2-hydroxyethyl)stearamidopropylamine, and (ii) a similar charged inorganic particle having an average particle size less than 0.1 micron.
Claim 11
Dependent Claim
46 words
A film comprising a coating of an anti-brick/anti-static composition, which composition comprises (i) a surfactant having anti-static properties wherein the surfactant is a quaternary ammonium salt of N,N dimethyl, N-(2-hydroxyethyl)stearamidopropylamine, and (ii) a similar charged inorganic particle having an average particle size less than 0.1 micron.
Claim 12
Dependent Claim
36 words
The film of claim 6 comprising a coating of an anti-brick/anti-static composition, which composition comprises a similar charged inorganic particle having an average particle size less than 0.1 micron which is a positively charged alumina/silica sol.
Claim 13
Dependent Claim
55 words
A film comprising a coating of an anti-brick/anti-static composition, which composition comprises (i) an anionic or cationic surfactant having anti-static properties, and (ii) a similar charged inorganic particle having an average particle size less than 0.1 micron, wherein the concentration of the inorganic particle on the film is less than 0.5 gram per square meter.
Claim 14
Dependent Claim
55 words
A film comprising a coating of an anti-brick/anti-static composition, which composition comprises (i) an anionic or cationic surfactant having anti-static properties, and (ii) a similar charged inorganic particle having an average particle size less than 0.1 micron, wherein the concentration of the inorganic particle on the film is less than 0.5 gram per square meter.
Claim 15
Dependent Claim
83 words
A film comprising a coating of an anti-brick/anti-static composition, which composition comprises (i) an anionic or cationic surfactant having anti-static properties, and (ii) a similar charged inorganic particle having an average particle size less than 0.1 micron, wherein the coating of the film is achieved with an aqueous solution wherein the amount of surfactant (i) in the solution ranges from 0.01 to 0.5 weight percent, and the amount of inorganic particle (ii) in the solution ranges from about 0.01 to 0.5 weight percent.
Claim 16
Dependent Claim
83 words
A film comprising a coating of an anti-brick/anti-static composition, which composition comprises (i) an anionic or cationic surfactant having anti-static properties, and (ii) a similar charged inorganic particle having an average particle size less than 0.1 micron, wherein the coating of the film is achieved with an aqueous solution wherein the amount of surfactant (i) in the solution ranges from 0.01 to 0.5 weight percent, and the amount of inorganic particle (ii) in the solution ranges from about 0.01 to 0.5 weight percent.
Claim 17
Dependent Claim
45 words
Microfilm comprising a coating of an anti-brick/anti-static composition, which composition comprises (i) a surfactant having anti-static properties wherein the surfactant is a quaternary ammonium salt of N,N dimethyl, N-(2-hydroxyethyl)stearamidopropylamine, and (ii) a similar charged inorganic particle having an average particle size less than 0.1 micron.
Claim 18
Dependent Claim
45 words
Microfilm comprising a coating of an anti-brick/anti-static composition, which composition comprises (i) a surfactant having anti-static properties wherein the surfactant is a quaternary ammonium salt of N,N dimethyl, N-(2-hydroxyethyl)stearamidopropylamine, and (ii) a similar charged inorganic particle having an average particle size less than 0.1 micron.
Claim 19
Dependent Claim
37 words
The microfilm of claim 10 comprising the coating of an anti-brick/anti-static composition, which composition comprises a similar charged inorganic particle having an average particle size of less than 0.1 micron which is a positively charged alumina/silica sol.
Claim 20
Dependent Claim
54 words
Microfilm comprising a coating of an anti-brick/anti-static composition, which composition comprises (i) an anionic or cationic surfactant having anti-static properties, and (ii) a similar charged inorganic particle having an average particle size less than 0.1 micron, wherein the concentration of the inorganic particle on the film is less than 0.5 gram per square meter.
Claim 21
Dependent Claim
54 words
Microfilm comprising a coating of an anti-brick/anti-static composition, which composition comprises (i) an anionic or cationic surfactant having anti-static properties, and (ii) a similar charged inorganic particle having an average particle size less than 0.1 micron, wherein the concentration of the inorganic particle on the film is less than 0.5 gram per square meter.
Claim 22
Dependent Claim
82 words
Microfilm comprising a coating of an anti-brick/anti-static composition, which composition comprises (i) an anionic or cationic surfactant having anti-static properties, and (ii) a similar charged inorganic particle having an average particle size less than 0.1 micron, wherein the coating of the film is achieved with an aqueous solution wherein the amount of surfactant (i) in the solution ranges from 0.01 to 0.5 weight percent, and the amount of inorganic particle (ii) in the solution ranges from about 0.01 to 0.5 weight percent.
Claim 23
Dependent Claim
82 words
Microfilm comprising a coating of an anti-brick/anti-static composition, which composition comprises (i) an anionic or cationic surfactant having anti-static properties, and (ii) a similar charged inorganic particle having an average particle size less than 0.1 micron, wherein the coating of the film is achieved with an aqueous solution wherein the amount of surfactant (i) in the solution ranges from 0.01 to 0.5 weight percent, and the amount of inorganic particle (ii) in the solution ranges from about 0.01 to 0.5 weight percent.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-10-26 | 1991-04-27 | 1991-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-10-26 | 1995-04-27 | 1995-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-10-26 | 1999-04-27 | 1999-10-27 | $7700.00 | Window Closed / Lapsed |