Patent US5258458A successfully refreshed from Google Patents.
US5258458A
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Composition for providing oil and water repellency
Assignee: 3M Co
•
Filing: 1991-02-28
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Granted: 1993-11-02
•
Expires: 2011-02-28
Abstract
Abstract A composition for treating fibrous substrates such as textiles to provide oil and water repellency is provided. The composition comprises a) a terpolymer comprising randomly distributed i) units containing a fluoroaliphatic group, Rf, ii) fluorine-free hydrocarbon units, and iii) units containing silicone and b) a fluorine-containing polymer having isocyanate derived linking groups and blocked isocyanate moieties. Also provided is a method for providing oil and water repellency to a fibrous substrate.
Inventors
- 👤 Kathy Allewaert
- 👤 Inge Bohez
- 👤 Pierre V. Elst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:31
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/643; D06M15/21; D06M15/263; D06M15/277; C; C08; C08L; C08L33/00; C08L33/04; C08L33/14; C08L33/16; D06M15/564; D06M15/576; C08L75/00; C08L75/04
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
68 words
A composition for treating fibrous substrates to provide oil and water repellency the composition comprising an aqueous emulsion of a) a terpolymer comprising randomly distributed i) units containing a fluoroaliphatic group, R f , ii) fluorine-free organic units derived from ethylenic compounds capable of free-radical polymerization, and iii) units containing silicone and b) a fluorine-containing compounds derived from fluoroaliphatic radical-containing monoalcohols, di- or polyisocyanates and isocyanate blocking agents.
Claim 2
Dependent Claim
68 words
A composition for treating fibrous substrates to provide oil and water repellency the composition comprising an aqueous emulsion of a) a terpolymer comprising randomly distributed i) units containing a fluoroaliphatic group, R f , ii) fluorine-free organic units derived from ethylenic compounds capable of free-radical polymerization, and iii) units containing silicone and b) a fluorine-containing compounds derived from fluoroaliphatic radical-containing monoalcohols, di- or polyisocyanates and isocyanate blocking agents.
Claim 3
Dependent Claim
19 words
The composition of claim 1, wherein the ratio of component (a) to component (b) is from 20:80 to 70:30.
Claim 4
Dependent Claim
19 words
The composition of claim 2, wherein the ratio of component (a) to component (b) is from 40:60 to 60:40.
Claim 5
Dependent Claim
94 words
The composition of claim 1 wherein the terpolymer comprises about 50 to 90 weight percent of the copolymerizable segments containing an R f group, about 10 to 50 weight percent of the copolymerizable organic segments free of fluorine and about 3 to 25 weight percent of the copolymerizable segments containing silicone when the silicone segment has a number average molecular weight in the range of about 1000 to 10,000 or about 0.5 to 10 weight percent when the silicone segment has a number average molecular weight in the range of about 10,000 to 20,000.
Claim 6
Dependent Claim
103 words
The composition of claim 1 wherein said terpolymer can be represented by the general formula I ##STR7## wherein A, A 1 , and A 2 are randomly distributed and are each independently an alkylene group having 2 to 3 carbon atoms capable of copolymerization; Q represents a divalent organic linking group; R f represents a fluoroaliphatic group which comprises a fully fluorinated terminal group; R represents a fluorine free organic group; R 1 represents a fluorine free organic group which comprises a siloxanyl group; x is about 5 to 100; y is about 5 to 200; and z is about 1 to 75.
Claim 7
Dependent Claim
91 words
The composition of claim 1 wherein said terpolymer is formed by the polymerization of monomers represented by the formulas A'--Q--R.sub.f II A.sup.1 '--R III A.sup.2 '--R.sup.1 IV wherein A', A 1 ', and A 2 ' represent ethylenically unsaturated alkyl segments having 2 to 3 carbon atoms capable of copolymerization; Q represents a divalent organic linking group; R f represents a fluoroaliphatic group which comprises a fully fluorinated terminal group; R represents a fluorine free organic group; and R 1 represents a fluorine free organic group which comprises a siloxanyl group.
Claim 8
Dependent Claim
93 words
The composition of claim 1 wherein component (b) can be represented by the formula ##STR8## wherein R f represents a fluoroaliphatic group which comprises a fully fluorinated terminal portion; Q represents a divalent organic linking group; R 2 represents a fluorine free aliphatic radical which is the residue of a moiety capable of reacting with an isocyanate; X represents a polyvalent isocyanate residue; Y represents an organic moiety capable of blocking an isocyanato group; and m+n equals the number of isocyanato functionalities contained in the isocyanate compound which is the precursor of X.
Claim 9
Dependent Claim
10 words
The composition of cliam 1 further comprising a hydrocarbon extender.
Claim 10
Dependent Claim
10 words
The composition of cliam 1 further comprising a hydrocarbon extender.
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1996-11-01 | 1997-05-03 | 1997-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-11-01 | 2001-05-03 | 2001-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-11-01 | 2005-05-03 | 2005-11-02 | $7700.00 | Window Closed / Lapsed |