US3897356A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Windshield wipers containing nonionic surfactant
Assignee: Kimberly Clark Tissue Co
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Filing: 1973-02-28
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Granted: 1975-07-29
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Expires: 1993-02-28
Abstract
Abstract Paper towels especially towels having wet strength derived from cationic wet-strength resins are useful for wiping glass surfaces such as windshields of motor vehicles and this usefulness is significantly improved by the incorporation onto the paper towel of a non-ionic surfactant especially ethoxylates of linear secondary alcohols. Preferably the linear alkyl hydrophobe portion of a mixture of secondary alcohols having 11 to 15 carbon atoms and the hydrophylic portion is a polyethylene oxide chain randomly attached to the linear aliphatic chain and having approximately 15 ethylene oxide units.
Inventors
- 👤 Alex Pociluyko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:09
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/66; C11D1/72; A; A47; A47L; A47L1/00; A47L1/06; A47L1/15; A47L13/00; A47L13/10; A47L13/16; C11D17/00; C11D17/04; C11D17/049
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
26 words
A WIPER FOR GLASS SURFACE CONSISTING ESSENTIALLY OF A WET-STRENGTHENED PAPER SHEET CONTAINING AN ACTIVE AMOUNT OF A NONIONIC DETERGENT SURFACTANT OF THE FOLLOWING GENERAL FORMULA:
Claim 2
Dependent Claim
26 words
A WIPER FOR GLASS SURFACE CONSISTING ESSENTIALLY OF A WET-STRENGTHENED PAPER SHEET CONTAINING AN ACTIVE AMOUNT OF A NONIONIC DETERGENT SURFACTANT OF THE FOLLOWING GENERAL FORMULA:
Claim 3
Dependent Claim
28 words
The paper sheet of claim 1 wherein the activating amount of detergent surfactant is from about 0.01 to about 2.0%, based upon the dry weight of the paper.
Claim 4
Dependent Claim
57 words
A wiper for glass surfaces consisting essentially of wet-strengtened paper sheet containing an active amount of a non-ionic detergent surfactant wherein the non-ionic detergent surfactant is an ethoxylated secondary alcohol produced by ethoxylating a mixture of linear secondary alcohols containing from 11 carbon atoms to 15 carbon atoms with a hydrophylic moiety containing 15 ethylene oxide groups.
Claim 5
Dependent Claim
57 words
A wiper for glass surfaces consisting essentially of wet-strengtened paper sheet containing an active amount of a non-ionic detergent surfactant wherein the non-ionic detergent surfactant is an ethoxylated secondary alcohol produced by ethoxylating a mixture of linear secondary alcohols containing from 11 carbon atoms to 15 carbon atoms with a hydrophylic moiety containing 15 ethylene oxide groups.
References Cited (Backward Citations)
US3075228A
Cited
US3227614A
Cited
US3335449A
Cited
US3354089A
Cited
US3393417A
Cited
US3686025A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-07-28 | 1979-01-27 | 1979-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-28 | 1983-01-27 | 1983-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-28 | 1987-01-27 | 1987-07-29 | $7700.00 | Window Closed / Lapsed |