US4283191A
Expired / Lapsed
US
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Preparation for shrinkproofing wool
Assignee: Evonik Operations GmbH
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Filing: 1980-03-19
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Granted: 1981-08-11
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Expires: 2000-03-19
Abstract
Abstract A preparation for shrinkproofing wool composed of: (a) 1 to 50 weight percent of organopolysiloxanes, which are built up from (a 1 ) 90 to 99.8 mole percent of units of formula R 2 1 SiO, and (a 2 ) 0.2 to 10 mole percent of units of the formula R 2 SiO 1 .5 in which R 1 and R 2 consist of 0.1 to 10 mole percent of polyoxyalkylene residues and, on the other hand, of 0.03 to 3 mole percent of mercaptoalkyl or mercaptoaryl residues, and/or 0.06 to 6 mole percent of aminoalkyl residues and/or 0.1 to 10 mole percent of anionic groups, which are linked to silicon atoms through carbon atoms, the remaining portion of R 1 and R 2 groups being methyl groups, up to 10 mole percent of which however may be replaced by alkyl residues of longer chain length, by aryl residues or by hydrogen atoms, while at the same time up to 5 mole percent of the oxygen atoms, which are liked to silicon, may in each case be replaced by two lower alkoxy or hydroxy groups, and (b) 50 to 99 weight percent of water and/or organic solvents. Wool, treated with this preparation, retains its resistance to shrinking even after repeated launderings. The hand of the wool and the hand of knitted and woven fabrics produced from the wool is not affected.
Inventors
- 👤 Gotz Koerner
- 👤 Friedhelm Nickel
- 👤 Gunter Schmidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:05
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/643; D06M15/647
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
191 words
A preparation for shrinkproofing wool comprising: (a) 1 to 50 weight percent of organopolysiloxanes consisting of (a 1 ) 90 to 99.8 mole percent of units having the formula R.sub.2.sup.1 SiO, and (a 2 ) 0.2 to 10 mole percent of units having the formula R.sup.2 SiO.sub.1.5 in which R 1 and R 2 are composed of 0.1 to 10 mole percent of polyoxyalkylene substituents and a wool substantive substituent selected from the group consisting of 0.03 to 3 mole percent of mercaptoalkyl or mercaptoaryl substituents; 0.06 to 6 mole percent of aminoalkyl substituents, and 0.1 to 10 mole percent of anionic groups, which are linked to silicon atoms through carbon atoms, the remaining portions of R 1 and R 2 groups being methyl groups, up to 10 mole percent of which may be replaced by alkyl substituents of longer chain length, by aryl substituents or by hydrogen atoms, while at the same time up to 5 mole percent of the oxygen atoms, which are linked to silicon, may in each case be replaced by two lower alkoxy or hydroxy terminal groups, and (b) 50 to 99 weight percent of water.
Claim 2
Dependent Claim
191 words
A preparation for shrinkproofing wool comprising: (a) 1 to 50 weight percent of organopolysiloxanes consisting of (a 1 ) 90 to 99.8 mole percent of units having the formula R.sub.2.sup.1 SiO, and (a 2 ) 0.2 to 10 mole percent of units having the formula R.sup.2 SiO.sub.1.5 in which R 1 and R 2 are composed of 0.1 to 10 mole percent of polyoxyalkylene substituents and a wool substantive substituent selected from the group consisting of 0.03 to 3 mole percent of mercaptoalkyl or mercaptoaryl substituents; 0.06 to 6 mole percent of aminoalkyl substituents, and 0.1 to 10 mole percent of anionic groups, which are linked to silicon atoms through carbon atoms, the remaining portions of R 1 and R 2 groups being methyl groups, up to 10 mole percent of which may be replaced by alkyl substituents of longer chain length, by aryl substituents or by hydrogen atoms, while at the same time up to 5 mole percent of the oxygen atoms, which are linked to silicon, may in each case be replaced by two lower alkoxy or hydroxy terminal groups, and (b) 50 to 99 weight percent of water.
Claim 3
Dependent Claim
72 words
The preparation of claim 1 wherein the polyoxyalkylene substituents correspond to the formula [OC.sub.n H.sub.2n --].sub.x O--Z which are linked directly through an SiOC bridge or over a divalent hydrocarbon substituents to the polysiloxane, and in which Z is a hydrogen substituents, a monovalent alkyl or aryl residue, an acyl residue or a trimethylsilyl residue, n has a value of 2 to 3 and x has a value of 2 to 80.
Claim 4
Dependent Claim
37 words
The preparation of claim 2 wherein the polyoxyalkylene substituents correspond to the formula [--C.sub.3 H.sub.6 --OC.sub.2 H.sub.4 --].sub.y OY in which Y is ##STR33## or the trimethylsilyl substituents and y has a value of 4 to 20.
Claim 5
Dependent Claim
26 words
The preparation of claim 1, 2 or 3, wherein the mercaptoalkyl substituents contain a linear or a branched alkylene substituents with 1 to 4 carbon atoms.
Claim 6
Dependent Claim
21 words
The preparation of claim 1, 2, or 3, wherein the aminoalkyl substituents is 3-(2-aminoethyl-)aminopropyl, 3-aminopropyl, 4-(2-aminoethyl-)aminobutyl substituents or the 3-(2-aminoethyl-)aminoisobutyl substituents.
Claim 7
Dependent Claim
84 words
The preparation of claim 1, 2, or 3 wherein the anionic groups correspond to the formula ##STR34## which are present in the form of the acid or are completely or partially neutralized, wherein R 3 is a divalent hydrocarbon substituent, which may be interrupted by oxygen, nitrogen or sulfur atoms, X is a --O - or the --OR 4 group, in which R 4 is a hydrogen substituent or an alkyl substituent with 1 to 4 carbon atoms and m is 0 or 1.
Claim 8
Dependent Claim
103 words
The preparation of claims 1, 2, or 3 wherein R 1 and R 2 are composed of 0.3 to 5 mole percent of polyoxyalkylene substituents and a wool substantive residue selected from the group consisting of 0.1 to 1 mole percent of mercaptoalkyl or mercaptoaryl substituents, 0.2 to 2 mole percent of aminoalkyl substituents, and 0.3 to 6 mole percent of anionic groups, which are linked to silicon atoms over carbon atoms, and the remaining portions of R 1 and R 2 groups are methyl groups up to 10 mole percent of which may be replaced by longer-chain alkyl substituents or aryl substituents.
Claim 9
Dependent Claim
32 words
The preparation of claim 1, 2, or 3 wherein the polyoxyalkylene block contains propylene oxides units and ethylene oxide units and the polyoxyethylene substituents contain at least about 40 mole percent polyoxyethylene.
Claim 10
Dependent Claim
21 words
The preparation of claim 1, 2, or 3 wherein the mercaptoalkyl or mercaptoaryl residues are 2-mercaptoethyl, 3-mercaptopropyl, 3-mercaptoisobutyl or mercaptophenyl substituents.
Claim 11
Dependent Claim
14 words
The preparation of claim 1, 2, or 3 wherein the anionic groups are ##STR35##
Claim 12
Dependent Claim
30 words
In a method for shrinkproofing wool wherein wool is treated with a shrinkproofing preparation, the improvement which comprises the shrinkproofing preparation being the preparation of claim 1, 2, or 3.
Claim 13
Dependent Claim
8 words
Wool treated by the method of claim 11.
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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) | 1984-08-10 | 1985-02-09 | 1985-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-08-10 | 1989-02-09 | 1989-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-08-10 | 1993-02-09 | 1993-08-11 | $7700.00 | Window Closed / Lapsed |