US4617340A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silicone-containing fabric treatment agent
Assignee: Shin-Etsu Chemical Co Ltd
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Filing: 1985-06-04
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Granted: 1986-10-14
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Expires: 2005-06-04
Abstract
Abstract The inventive fabric treatment agent can impart excellent hydrophilicity to fabric materials of, in particular, synthetic fibers with durability and launderability. The principal ingredient of the agent is a copolymer composed of three types of moieties including (a) a diorganopolysiloxane terminated at both molecular chain ends each with a non-silanolic hydroxy group or other active hydrogen-containing group, e.g. -SH, -COOH and -NH2, (b) a polyol compound having polyoxyalkylene linkages which is typically a polyoxyethylene glycol and (c) a diisocyanate compound which serves as a coupling agent between the moieties (a) and (b).
Inventors
- 👤 Masaki Tanaka
- 👤 Hiroshi Ohashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:37
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/42; C08G77/46; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/61; D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/564; D06M15/568; D06M15/643; D06M15/6436; D06M15/647; D06M15/653; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31652; Y10T428/31663
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
180 words
A fabric treatment agent which comprises, as the principal ingredient, a copolymer which is the polymerization product of three types of moieties including: (a) a diorganopolysiloxane in a liquid form represented by the general formula X--R.sup.1 --SiR.sup.2.sub.2 --O).sub.n SiR.sup.2.sub.2 --R.sup.1 --X, in which R 1 is a divalent organic group, R 2 is a substituted or unsubstituted monovalent hydrocarbon group having from 1 to 20 carbon atoms, X is an active hydrogen-containing functional group selected from the class consisting of a hydroxy group --OH, mercapto group --SH, carboxyl group --COOH and amino group --NH 2 and n is a positive integer not smaller than 10; (b) a polyol compound having polyoxyalkylene linkages in an amount from 1 to 10 moles per moles of the moiety (a) above; and (c) a diisocyanate compound in such an amount that the molar ratio --NCO/H of the isocyanate groups --NCO in the diisocyanate com-pound to the overall hydrogen atoms of the functional groups X in the moiety (a) and the hydroxy groups in the moiety (b) is in the range from 0.05 to 1.
Claim 2
Dependent Claim
180 words
A fabric treatment agent which comprises, as the principal ingredient, a copolymer which is the polymerization product of three types of moieties including: (a) a diorganopolysiloxane in a liquid form represented by the general formula X--R.sup.1 --SiR.sup.2.sub.2 --O).sub.n SiR.sup.2.sub.2 --R.sup.1 --X, in which R 1 is a divalent organic group, R 2 is a substituted or unsubstituted monovalent hydrocarbon group having from 1 to 20 carbon atoms, X is an active hydrogen-containing functional group selected from the class consisting of a hydroxy group --OH, mercapto group --SH, carboxyl group --COOH and amino group --NH 2 and n is a positive integer not smaller than 10; (b) a polyol compound having polyoxyalkylene linkages in an amount from 1 to 10 moles per moles of the moiety (a) above; and (c) a diisocyanate compound in such an amount that the molar ratio --NCO/H of the isocyanate groups --NCO in the diisocyanate com-pound to the overall hydrogen atoms of the functional groups X in the moiety (a) and the hydroxy groups in the moiety (b) is in the range from 0.05 to 1.
Claim 3
Dependent Claim
20 words
The fabric treatment agent as claimed in claim 1 wherein the moiety (b) in the copolymer is a polyoxyalkylene glycol.
Claim 4
Dependent Claim
29 words
The fabric treatment agent as claimed in claim 2 wherein the polyoxyalkylene glycol is a polyoxyethylene glycol having an average molecular weight in the range from 100 to 5000.
Claim 5
Dependent Claim
66 words
The fabric treatment agent as claimed in claim 1 wherein the polyol compounds having polyoxyalkylene linkages in the molecule as the moiety (b) in the copolymer is an alkylamine polyoxyalkylene adduct represented by the general formula H--O--R.sup.3).sub.c NR.sup.2 --R.sup.3 --O).sub.d H, in which R 3 is a divalent hydrocarbon group having from 2 to 4 carbon atoms and c and d are each a positive integer.
Claim 6
Dependent Claim
17 words
The fabric treatment agent as claimed in claim 1 which is an aqueous emulsion of the copolymer.
Claim 7
Dependent Claim
26 words
The fabric treatment agent as claimed in claim 5 wherein the aqueous emulsion further contains am organic resin dispersible in water and a curing catalyst therefor.
Claim 8
Dependent Claim
21 words
The fabric treatment agent as claimed in claim 6 wherein the organic resin dispersible in water is a water-soluble polyurethane resin.
References Cited (Backward Citations)
US4130708A
Cited
US4457887A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-10-13 | 1990-04-14 | 1990-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-10-13 | 1994-04-14 | 1994-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-10-13 | 1998-04-14 | 1998-10-14 | $7700.00 | Window Closed / Lapsed |