Patent US3898185A successfully refreshed from Google Patents.
US3898185A
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Shelf-stable electroconductive latex composition
Assignee: Dow Chemical Co
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Filing: 1973-08-10
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Granted: 1975-08-05
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Expires: 1993-08-10
Abstract
Abstract A shelf-stable, electroconductive latex is provided by adding low molecular weight, quaternized polyepichlorohydrin to an anionically stabilized latex. The resulting electroconductive latex is particularly useful as a textile backing composition.
Inventors
- 👤 Dennis H Philp
- 👤 Wendell N Delano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 02:20
CPC Classifications
C; C08; C08L; C08L9/00; C08L9/06; C08L9/08; C08G; C08G65/00; C08G65/02; C08G65/32; C08G65/329; C08G65/333; C08G65/33303; C08G65/33306; D; D06; D06N; D06N7/00; D06N7/0063; D06N7/0071; D06N7/0073; C08L71/00; C08L71/02; C08L71/03; D06N2209/00; D06N2209/04; D06N2209/041; D06N2209/046
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
77 words
A SHELF-STABLE LATEX COMPOSITION SUITABLE AS A BACKING MATERIAL FOR TEXTILES WHEREIN THE COMPOSITION COMPRISES AN ANIONICALLY STABILIZED LATEX OF A THERMOPLASTIC ORGANIC POLYMER A FILLER A THICKNENER FOR THE LATEX AND A QUATERNIZED EPIHALOHYDRIN POLMER HAVING A MOLECULAR WEIGHT IN THE RANGE FROM ABOUT 120 TO ABOUT 200,000 AND A DEGREE OF QUATERNIZATION IN THE RANGE FROM ABOUT 50 TO 100 MOLE PERCENT IN AN AMOUNT SUFFICIENT TO MEASURABLY REDUCE THE VOLUME RESISTIVITY OF SAID COMPOSITION.
Claim 2
Dependent Claim
77 words
A SHELF-STABLE LATEX COMPOSITION SUITABLE AS A BACKING MATERIAL FOR TEXTILES WHEREIN THE COMPOSITION COMPRISES AN ANIONICALLY STABILIZED LATEX OF A THERMOPLASTIC ORGANIC POLYMER A FILLER A THICKNENER FOR THE LATEX AND A QUATERNIZED EPIHALOHYDRIN POLMER HAVING A MOLECULAR WEIGHT IN THE RANGE FROM ABOUT 120 TO ABOUT 200,000 AND A DEGREE OF QUATERNIZATION IN THE RANGE FROM ABOUT 50 TO 100 MOLE PERCENT IN AN AMOUNT SUFFICIENT TO MEASURABLY REDUCE THE VOLUME RESISTIVITY OF SAID COMPOSITION.
Claim 3
Dependent Claim
39 words
The composition of claim 1 wherein the quaternized epihalohydrin polymer is polyepichlorohydrin quaternized with trialkylamine wherein alkyl has one or two carbon atoms, said quaternized polyepichlorohydrin having a molecular weight in the range from about 120 to about 2000.
Claim 4
Dependent Claim
51 words
The composition of claim 1 wherein the quaternized epihalohydrin polymer has a molecular weight in the range from about 2000 to about 200,000 and the composition contains from about 0.5 to about 20 dry weight parts of a water-soluble salt based on the 100 dry weight parts of latex polymer solids.
Claim 5
Dependent Claim
11 words
The composition of claim 2 wherein the salt is sodium chloride.
Claim 6
Dependent Claim
78 words
The composition of claim 1 wherein the composition comprises on a dry basis from about 20 to about 35 weight percent of latex polymer solids, from about 62 to 79 weight percent of filler, from about 1 to about 3 weight percent of quaternized polyepihalohydrin and an amount of thickener effective to provide a Brookfield viscosity in the range from about 6,000 to about 15, 000 centipoise at ambient temperature using a No. 5 spindle at 20 rpm.
Claim 7
Dependent Claim
15 words
The composition of claim 1 wherein the quaternized epihalohydrin polymer is represented by the formula
Claim 8
Dependent Claim
14 words
The composition of claim 6 wherein each of R2, R3 and R4 are methyl.
Claim 9
Dependent Claim
17 words
The composition of claim 1 wherein the filler is calcium carbonate and the thickener is sodium polyacrylate.
Claim 10
Dependent Claim
17 words
The composition of claim 1 wherein the composition is applied as a backing to a textile fabric.
Claim 11
Dependent Claim
15 words
The composition of claim 1 wherein the composition is applied as a backing to carpet.
References Cited (Backward Citations)
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US3205187A
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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) | 1978-08-04 | 1979-02-03 | 1979-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-04 | 1983-02-03 | 1983-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-04 | 1987-02-03 | 1987-08-05 | $7700.00 | Window Closed / Lapsed |