US4100093A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compositions for the treatment of glass surfaces
Assignee: Individual
•
Filing: 1976-10-04
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Granted: 1978-07-11
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Expires: 1996-10-04
Abstract
Abstract The invention relates to glass surface treating compositions which comprise, in an aqueous vehicle, liquid hydrocarbons, ammonium hydroxide, polyisopropylene gum, monovalent alcohols, castor oil and silica gel.
Inventors
- 👤 Giorgio Rialdi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:15
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/43
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
106 words
A glass surface treating composition which comprises, in intimate admixture: (a) 0.2-0.5% of a polyisopropylene gum; (b) 18-25% of a monovalent saturated alcohol having from 3 to 4 carbon atoms; (c) 9-13% of a liquid hydrocarbon having a boiling point of from 31° C to 36.2° C. and being capable of solubilizing said polyisopropylene gum and maintaining said gum in solution; (d) 4-8% of a fatty compound selected from the group consisting of castor oil, hydrogenated castor oil and polymerized castor oil; (e) 2-6% of silica gel; (f) 0.05-0.2% of ammonium hydroxide; and (g) 40-60% of water, all percentages being expressed in parts percent by weight.
Claim 2
Dependent Claim
106 words
A glass surface treating composition which comprises, in intimate admixture: (a) 0.2-0.5% of a polyisopropylene gum; (b) 18-25% of a monovalent saturated alcohol having from 3 to 4 carbon atoms; (c) 9-13% of a liquid hydrocarbon having a boiling point of from 31° C to 36.2° C. and being capable of solubilizing said polyisopropylene gum and maintaining said gum in solution; (d) 4-8% of a fatty compound selected from the group consisting of castor oil, hydrogenated castor oil and polymerized castor oil; (e) 2-6% of silica gel; (f) 0.05-0.2% of ammonium hydroxide; and (g) 40-60% of water, all percentages being expressed in parts percent by weight.
Claim 3
Dependent Claim
20 words
The composition of claim 1 wherein the liquid hydrocarbon is selected from the group consisting of methylbutadiene, pentane, and isopentane.
Claim 4
Dependent Claim
19 words
The composition of claim 1 wherein the polyisopropylene gum is a natural gum obtained from the tree H. brasilensis.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-07-10 | 1982-01-09 | 1982-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-10 | 1986-01-09 | 1986-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-10 | 1990-01-09 | 1990-07-11 | $7700.00 | Window Closed / Lapsed |