Patent US3876459A successfully refreshed from Google Patents.
US3876459A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of fibres
Assignee: Dow Silicones UK Ltd
•
Filing: 1973-06-29
•
Granted: 1975-04-08
•
Expires: 1993-06-29
Abstract
Abstract Wool is rendered resistant to shrinkage on washing by treatment with from 0.1 to 10% by weight of a composition obtained by mixing (A) a polydiorganosiloxane having terminal silicon-bonded hydroxyl radicals and (B) an organosilane RSiR''.sub.n X.sub.3-n, in which R is a monovalent radical containing at least two amine groups, R'' is alkyl or aryl, X is alkoxy and n is 0 or 1, and/or a partial hydrolysate and condensate of the silane. The applied composition is thereafter cured.
Inventors
- 👤 Peter Martin Burrill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:17
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/643; D06M15/6436; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/31504; Y10T428/31652; Y10T428/31663
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
320 words
A PROCESS FOR THE TREATMENT OF KERATINOUS FIBRES WHICH COMPRISES APPLYING THERETO FROM 0.1 TO 10% BY WEIGHT, BASED ON THE WEIGHT OF THE FIBERS, OF A COMPOSITION COMPRISING THE PRODUCT OBTAINED BY MIXING (A) A POLYDIORGANOSILOXANE HAVING TERMINAL SILICON-BONDED HYDROXYL RADICALS AND MOLECULAR WEIGHT OF AT LEAST 750, AT LEAST 50 PERCENT OF THE ORGANIC SUBSTITUENTS PRESENT IN THE POLYDIORGANOSILOXANE BEING METHYL RADICALS, ANY OTHER RADICALS BEING MONOVALENT HYDROCARBON RADICALS HAVING FROM 2 TO 30 CARBON ATOMS, ((B) UP TO 50 PARTS BY WEIGHT PER 100 PARTS (A) OF AN ORGANOSILICON COMPOUND SELECTED FROM THE THE GROUP CONSISTING OF ORGANOSILANES OF THE GENERAL FORMULA RSIR''NX3-N WHEREIN R REPRESENTS A MONOVALENT RADICAL OF LESS THAN 21 CARBON ATOMS COMPOSED OF CARBON, HYDROGEN, NITROGEN AND, OPTIONALLY, OXYGEN, WHICH RADICAL CONTAINS AT LEAT TWO AMINE GROUPS AND IS ATTACHED TO SILICON THROUGH A SILICON TO CARBON LINKAGE, R'' REPRESENTS A RADICAL HAVING LESS THAN 19 CARBON ATOMS SELECTED FROM THE GROUP CONSISTING OF ALKYL RADICALS AND ARYL RADICALS, EACH X REPRESENTS AN ALKOXY RADICAL HAVING FROM 1 TO 14 INCLUSIVE CARBON ATOMS AND N IS 0 OR 1, AND PARTIAL HYDROLYSATE AND CONDENSATE PRODUCTS OF SAID ORGANOSILANES, AND (C) IN AMOUNT FROM THAT SUFFICIENT TO SIGNIFICANTLY REDUCE THE TIME AND TEMPERATURE REQUIRED TO CURE THE COMPOSITION TO 20 PARTS BASED ON THE WEIGHT OF (A) AND (B) OF AN ORGANOSILICON COMPOUND SELECTED FROM THE GROUP CONSISTING OF (I) SILANES OF THE GENERAL FORMULA R"MSIZ4-M WHEREIN R" REPRESENTS A SUBSTITUENT SELECTED FROM THE GROUP CONSISTING OF HYDROGEN ATOMS, MONOVALENT HYDROCARBON RADICALS HAVING FROM 1 TO 18 CARBON ATOMS AND MONOVALENT HALOGEN HYDROCARBON RADICALS HAVING FROM 1 TO 18 CARBON ATOMS, Z REPRESENTS A RADICAL SELECTED FROM THE GROUP CONSISTING OF ALKOXY RADICALS AND ALKOXYALKOXY RADICALS HAVING FROM 1 TO 4 INCLUSIVE CARBON ATOMS AND M IS 0 OR 1, AND (II) PARTIAL HYDROLYSATES AND CONDENSATES OF (I), AND THEREAFTER CURING THE APPLIED COMPOSITION.
Claim 2
Dependent Claim
320 words
A PROCESS FOR THE TREATMENT OF KERATINOUS FIBRES WHICH COMPRISES APPLYING THERETO FROM 0.1 TO 10% BY WEIGHT, BASED ON THE WEIGHT OF THE FIBERS, OF A COMPOSITION COMPRISING THE PRODUCT OBTAINED BY MIXING (A) A POLYDIORGANOSILOXANE HAVING TERMINAL SILICON-BONDED HYDROXYL RADICALS AND MOLECULAR WEIGHT OF AT LEAST 750, AT LEAST 50 PERCENT OF THE ORGANIC SUBSTITUENTS PRESENT IN THE POLYDIORGANOSILOXANE BEING METHYL RADICALS, ANY OTHER RADICALS BEING MONOVALENT HYDROCARBON RADICALS HAVING FROM 2 TO 30 CARBON ATOMS, ((B) UP TO 50 PARTS BY WEIGHT PER 100 PARTS (A) OF AN ORGANOSILICON COMPOUND SELECTED FROM THE THE GROUP CONSISTING OF ORGANOSILANES OF THE GENERAL FORMULA RSIR''NX3-N WHEREIN R REPRESENTS A MONOVALENT RADICAL OF LESS THAN 21 CARBON ATOMS COMPOSED OF CARBON, HYDROGEN, NITROGEN AND, OPTIONALLY, OXYGEN, WHICH RADICAL CONTAINS AT LEAT TWO AMINE GROUPS AND IS ATTACHED TO SILICON THROUGH A SILICON TO CARBON LINKAGE, R'' REPRESENTS A RADICAL HAVING LESS THAN 19 CARBON ATOMS SELECTED FROM THE GROUP CONSISTING OF ALKYL RADICALS AND ARYL RADICALS, EACH X REPRESENTS AN ALKOXY RADICAL HAVING FROM 1 TO 14 INCLUSIVE CARBON ATOMS AND N IS 0 OR 1, AND PARTIAL HYDROLYSATE AND CONDENSATE PRODUCTS OF SAID ORGANOSILANES, AND (C) IN AMOUNT FROM THAT SUFFICIENT TO SIGNIFICANTLY REDUCE THE TIME AND TEMPERATURE REQUIRED TO CURE THE COMPOSITION TO 20 PARTS BASED ON THE WEIGHT OF (A) AND (B) OF AN ORGANOSILICON COMPOUND SELECTED FROM THE GROUP CONSISTING OF (I) SILANES OF THE GENERAL FORMULA R"MSIZ4-M WHEREIN R" REPRESENTS A SUBSTITUENT SELECTED FROM THE GROUP CONSISTING OF HYDROGEN ATOMS, MONOVALENT HYDROCARBON RADICALS HAVING FROM 1 TO 18 CARBON ATOMS AND MONOVALENT HALOGEN HYDROCARBON RADICALS HAVING FROM 1 TO 18 CARBON ATOMS, Z REPRESENTS A RADICAL SELECTED FROM THE GROUP CONSISTING OF ALKOXY RADICALS AND ALKOXYALKOXY RADICALS HAVING FROM 1 TO 4 INCLUSIVE CARBON ATOMS AND M IS 0 OR 1, AND (II) PARTIAL HYDROLYSATES AND CONDENSATES OF (I), AND THEREAFTER CURING THE APPLIED COMPOSITION.
Claim 3
Dependent Claim
30 words
A process as claimed in claim 1 wherein (C) is employed in a proportion of from 1 to 20 percent by weight based on the total weight of (A) and
Claim 4
Dependent Claim
52 words
A process as claimed in claim 1 wherein (B) is an organosilane having the general formula RSiX.sub.3 in which R is selected from the group consisting of --(CH.sub.2).sub.3 NHCH.sub.2 CH.sub.2 NH.sub.2 and --CH.sub.2 CHCH.sub.3 CH.sub.2 NHCH.sub.2 CH.sub.2 NH.sub.2 radicals and each X is selected from the group consisting of methoxy and ethoxy
Claim 5
Dependent Claim
13 words
A process as claimed in claim 3 wherein the composition is applied to
Claim 6
Dependent Claim
281 words
A composition comprising the product obtained by mixing (A) a polydiorganosiloxane having terminal silicon-bonded hydroxyl radicals and a molecular weight of at least 750, at least 50 percent of the organic substituents in the polydiorganosiloxane being methyl radicals, any other substituents being monovalent hydrocarbon radicals having from 2 to 30 carbon atoms, (B) an organosilicon compound selected from the group consisting of organosilanes of the general formula RSiR''.sub.n X.sub.3.sub.-n wherein R represents a monovalent radical composed of carbon, hydrogen, nitrogen and, optionally, oxygen, which radical contains at least two amine groups and is attached to silicon through a silicon to carbon linkage, R represents a radical having less than 19 carbon atoms selected from the group consisting of alkyl radicals and aryl radicals, each X represents an alkoxy radical having from 1 to 14 inclusive carbon atoms and n is 0 or 1, and partial hydrolysate and condensate products of said organosilanes, and (C) an organosilicon compound selected from the group consisting of (i) silanes of the general formula R".sub.m SiZ.sub. 4.sub.-m wherein R" represents a substituent selected from the group consisting of hydrogen atoms, monovalent hydrocarbon radicals having from 1 to 18 carbon atoms and monovalent halogenated hydrocarbon radicals having from 1 to 18 carbon atoms, Z represents a radical selected from the group consisting of alkoxy radicals and alkoxyalkoxy radicals having from 1 to 4 inclusive carbon atoms and m is 0 or 1, and (ii) partial hydrolysates and condensates of (i) wherein component (B) is employed in a proportion of from 0.5 to 15 percent by weight based on the weight of (A) and component (C) is employed in a proportion of from 1 to 20 percent by
Claim 7
Dependent Claim
281 words
A composition comprising the product obtained by mixing (A) a polydiorganosiloxane having terminal silicon-bonded hydroxyl radicals and a molecular weight of at least 750, at least 50 percent of the organic substituents in the polydiorganosiloxane being methyl radicals, any other substituents being monovalent hydrocarbon radicals having from 2 to 30 carbon atoms, (B) an organosilicon compound selected from the group consisting of organosilanes of the general formula RSiR''.sub.n X.sub.3.sub.-n wherein R represents a monovalent radical composed of carbon, hydrogen, nitrogen and, optionally, oxygen, which radical contains at least two amine groups and is attached to silicon through a silicon to carbon linkage, R represents a radical having less than 19 carbon atoms selected from the group consisting of alkyl radicals and aryl radicals, each X represents an alkoxy radical having from 1 to 14 inclusive carbon atoms and n is 0 or 1, and partial hydrolysate and condensate products of said organosilanes, and (C) an organosilicon compound selected from the group consisting of (i) silanes of the general formula R".sub.m SiZ.sub. 4.sub.-m wherein R" represents a substituent selected from the group consisting of hydrogen atoms, monovalent hydrocarbon radicals having from 1 to 18 carbon atoms and monovalent halogenated hydrocarbon radicals having from 1 to 18 carbon atoms, Z represents a radical selected from the group consisting of alkoxy radicals and alkoxyalkoxy radicals having from 1 to 4 inclusive carbon atoms and m is 0 or 1, and (ii) partial hydrolysates and condensates of (i) wherein component (B) is employed in a proportion of from 0.5 to 15 percent by weight based on the weight of (A) and component (C) is employed in a proportion of from 1 to 20 percent by
Claim 8
Dependent Claim
13 words
A composition as claimed in claim 5 which also comprises an organic solvent.
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) | 1978-04-07 | 1978-10-07 | 1979-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-07 | 1982-10-07 | 1983-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-07 | 1986-10-07 | 1987-04-08 | $7700.00 | Window Closed / Lapsed |