US2597614A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of rendering organic textile material water repellent and composition therefor
Assignee: HARRIS RES LAB
•
Filing: 1947-02-06
•
Granted: 1952-05-20
•
Expires: 1967-02-06
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 15:21
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
146 words
THE METHOD OF PREPARING AN ORGANIC TEXTILE TREATING COMPOSITON WHICH COMPRISES ADDING A SOLUTION CONTAINING A MONO-ALKYL DICHLOROSILANE AND AN INERT ORGANIC SOLVENT SELECTED FROM THE GROUP CONSISTING OF BENZENE AND METHYL BENZENE IN THE PROPORTION OF AT LEAST 1 PART BY VOLUME OF SAID INERT AROMATIC SOLVENT TO 2 PARTS OF MONOALKYL DICHLOROSILANE TO A WATER SOLUTION OF SODIUM ACETATE, THE PROPORTION OF WATER TO MONO-ALKYL DICHLOROSILANE SOLUTION BEING AT LEAST EQUAL TO TWICE THE VOLUME OF SAID MONO-ALKYL 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 DICHLOROSILANE, 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
66 words
A METHOD OF RENDERING AN ORGANIC TEXTILE MATERIAL WATER REPELLENT WHICH COMPRISES TREATING SAID MATERIAL WITH A DILUTED EMULSION PREPARED IN ACCORDANCE WITH CLAIM 2, SAID EMULSION HAVING A SILICONE OIL CONCENTRATION FROM 0.25% TO 3% BY WEIGHT, DRYING THE TREATED MATERIAL, WASHING THE DRIED MATERIAL TO REMOVE THE ALKALINE SUBSTANCE AND EMULSIFYING AGENT CONTAINED IN SAID EMULSION, AND AGAIN DRYING AND HEAT-CURING SAID TREATED MATERIAL.
References Cited (Backward Citations)
US2439689A
Cited
US2386259A
Cited
US2390370A
Cited
US2392805A
Cited
GB574003A
Cited
US2482307A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-20 | 1955-11-19 | 1956-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-20 | 1959-11-19 | 1960-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-20 | 1963-11-19 | 1964-05-20 | $7700.00 | Window Closed / Lapsed |