US2662039A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of rendering organic textile material water repellent and composition therefor
Assignee: HARRIS RES LAB
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Filing: 1952-04-23
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Granted: 1953-12-08
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Expires: 1972-04-23
Abstract
No abstract record available.
Inventors
- 👤 Alfred E Brown
- 👤 Arnold M Sookne
- 👤 Francis W Minor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:38
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/50; D06M13/51; D06M13/513; D06M13/517; Y; Y10; Y10S; Y10S8/00; Y10S8/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
THE METHOD OF PREPARING AN ORGANIC TEXTILE TREATING COMPOSITION WHICH COMPRISES ADDING A SOLUTION OF A MONO-ALKYL DICHLOROSILANE AND A DIALKYL DICHLOROSILANE IN THE PROPORTION OF AT LEAST 1 PART BY VOLUME OF SAID DI-ALKYL DICHLOROSILANE TO 2 PARTS OF MONO-ALKYL DICHLOROSILANE TO A WATER SOLUTION OF SODIUM ACETATE, THE PROPORTION OF WATER TO SAID FIRST-MENTIONED MONO-ALKYL AND DIALKYL DICHLOROSILANE SOLUTION BEING AT LEAST EQUAL TO TWICE THE VOLUME OF SAID FIRST-MENTIONED MONOALKYL AND DIALKYL DICHLOROSILANE SOLUTION, AND SAID SODIUM ACETATE BEING PRESENT IN AN AMOUNT AT LEAST SUFFICIENT TO NEUTRALIZE HYDROCHLORIC ACID EVOLVED IN THE HYDROLYSIS OF SAID MONO-ALKYL AND DI-ALKYL DICHLOROSILANES, AND AGITATING THE MIXTURE IN THE PRESENCE OF AN EMULSIFYING AGENT, SAID EMULSIFYING AGENT BEING PRESENT IN THE PROPORTION OF FROM 0.01 TO ABOUT 5% BY WEIGHT OF THE HYDROLYSIS PRODUCT OF SAID MONO-ALKYL DICHLOROSILANE, WHEREBY AN EMULSION IS FORMED.
Claim 2
Dependent Claim
53 words
A METHOD OF RENDERING AN ORGANIC TEXTILE MATERIAL WATER REPELLENT WHICH COMPRISES TREATING SAID MATERIAL WITH A DILUENT EMULSION PREPARED IN ACCORDANCE WITH CLAIM 2, DRYING THE TREATED MATERIAL, WASHING THE DRIED MATERIAL TO REMOVE THE SODIUM ACETATE AND EMULSIFYING AGENT CONTAINED IN SAID EMULSION, AND AGAIN DRYING AND HEAT-CURING SAID TREATED MATERIAL.
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) | 1956-12-07 | 1957-06-08 | 1957-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-07 | 1961-06-08 | 1961-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-07 | 1965-06-08 | 1965-12-08 | $7700.00 | Window Closed / Lapsed |