US4112206A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyvinyl chloride having improved antistatic properties
Assignee: VISTA POLYMERS Inc A DE CRP AND WHOLLY-OWNED SUBSIDIARY OF VISTA CHEMICAL Co
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Filing: 1977-07-05
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Granted: 1978-09-05
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Expires: 1997-07-05
Abstract
Abstract Polyvinyl chloride containing certain fluorocarbon surfactants has improved antistatic properties. The fluorocarbon surfactants are fluorinated alkyl polyoxyethylene ethanols and a compound represented by the formula ##STR1##
Inventors
- 👤 James A. Wingrave
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:55
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/06; C08F; C08F8/00; C08F8/18; C08K5/36; C08K5/41; C08K5/42; Y; Y10; Y10S; Y10S260/00; Y10S260/15; Y10S524/00; Y10S524/91
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
91 words
An improvement in the method of providing antistatic properties in polyvinyl chloride by chemical treatment the improvement comprising adding to the polyvinyl chloride an effective amount, in the range of about 0.0002 to about 0.02 weight percent based on said polyvinyl chloride, of a fluorocarbon surfactant selected from the group consisting of: (a) fluorinated alkyl polyoxyethylene ethanols represented by the formula ##STR9## wherein n is in the range of 8 to 18 and m is in the range of 1 to 5, and (b) a compound represented by the formula ##STR10##
Claim 2
Dependent Claim
91 words
An improvement in the method of providing antistatic properties in polyvinyl chloride by chemical treatment the improvement comprising adding to the polyvinyl chloride an effective amount, in the range of about 0.0002 to about 0.02 weight percent based on said polyvinyl chloride, of a fluorocarbon surfactant selected from the group consisting of: (a) fluorinated alkyl polyoxyethylene ethanols represented by the formula ##STR9## wherein n is in the range of 8 to 18 and m is in the range of 1 to 5, and (b) a compound represented by the formula ##STR10##
Claim 3
Dependent Claim
23 words
The method of claim 1 wherein the amount of fluorocarbon surfactant is in the range of about 0.0005 to about 0.005 weight percent.
Claim 4
Dependent Claim
15 words
The method of claim 2 wherein the fluorocarbon surfactant is a fluorinated alkyl polyoxyethylene ethanol.
Claim 5
Dependent Claim
37 words
The method of claim 3 wherein the fluorinated alkyl polyoxyethylene ethanol is represented by the formula ##STR11## wherein n is in the range of 12 to 14 and m is in the range of 2 to 3.
Claim 6
Dependent Claim
17 words
The method of claim 2 wherein the fluorocarbon surfactant is a compound represented by the formula ##STR12##
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) | 1981-09-04 | 1982-03-06 | 1982-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-09-04 | 1986-03-06 | 1986-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-09-04 | 1990-03-06 | 1990-09-05 | $7700.00 | Window Closed / Lapsed |