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US3835148A
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US
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Aqueous polystyrene containing dispersions as anti-statics for the permanent finishing of fibre materials
Assignee: Novartis AG
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Filing: 1972-02-15
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Granted: 1974-09-10
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Expires: 1992-02-15
Abstract
Abstract Disclosed is an aqueous acid solution or suspension of a preparation as well as the production thereof for the permanent finishing of fibre materials, especially dyed carpets, to render them antistatic, dirt-repellent and, optionally, antimicrobial, which aqueous preparation contains: A. 10 TO 20 PER CENT BY WEIGHT OF AT LEAST ONE ANTISTATIC AGENT, B. 3 TO 35 PER CENT BY WEIGHT OF A STABILISED, AQUEOUS NONFILM-FORMING DISPERSION OF POLYSTYRENE, C. 1 TO 6 PER CENT BY WEIGHT OF AT LEAST ONE ACID, ESPECIALLY OPHOSPHORIC ACID, AND D. 0 TO 5 PER CENT BY WEIGHT OF FURTHER COMPONENTS, SUCH AS AN ANTIMICROBIC AGENT AND A SOLUBILITY-PROMOTING AGENT.
Inventors
- 👤 J Oxe
- 👤 R Keller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:21
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/322; D06M13/46; D06M11/00; D06M11/58; D06M11/64; D06M13/402; D06M15/00; D06M15/19; D06M15/21; D06M15/227; D06M15/233; D06M16/00; Y; Y10; Y10S; Y10S260/00; Y10S260/15; Y10S260/19; Y10S260/21; Y10S428/00; Y10S428/907; Y10S524/00; Y10S524/91; Y10S524/911; Y10S524/912; Y10S524/913; Y10S8/00; Y10S8/929; Y10T; Y10T442/00; Y10T442/20; Y10T442/2279; Y10T442/2295; Y10T442/2418; Y10T442/2459; Y10T442/2525
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
38 words
A preparation for use in giving fibre materials a permanent antistatic and dirt-repellent finish, consisting essentially of an aqueous dispersion of a. 10 to 20 percent by weight of an antistatic agent comprising a compound of the formula:
Claim 2
Dependent Claim
9 words
The preparation of claim 2, wherein R is heptadecyl.
Claim 3
Dependent Claim
16 words
The preparation of claim 2, wherein the antistatic agent further comprises a compound of the formula:
Claim 4
Dependent Claim
16 words
The preparation of claim 3, wherein the antistatic agent further comprises a compound of the formula:
Claim 5
Dependent Claim
13 words
The preparation of claim 1, wherein the antimicrobic agent is of the formula
Claim 6
Dependent Claim
19 words
The preparation of claim 4, wherein the antistatic agent further comprises a polyglycol ether of the formula: C18H37-O-(CH2CH2O)18-H or
Claim 7
Dependent Claim
37 words
The preparation of claim 1, wherein acid component c) is selected from the group consisting of hydrochloric acid, hydrobromic acid, nitric acid, sulphuric acid, phosphoric acid, boric acid, acetic acid, oxalic acid, malonic acid and citric acid.
References Cited (Backward Citations)
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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) | 1977-09-09 | 1978-03-11 | 1978-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-09 | 1982-03-11 | 1982-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-09 | 1986-03-11 | 1986-09-10 | $7700.00 | Window Closed / Lapsed |