US5435376A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame resistant microencapsulated phase change materials
Assignee: Microtek Laboratories Inc
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Filing: 1992-08-17
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Granted: 1995-07-25
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Expires: 2012-08-17
Abstract
Abstract A microencapsulated phase change material comprising a microcapsule wall former encapsulating a phase change material as an internal phase, said phase change material being inherently resistant or a flame retardant being admixed with said phase change material.
Inventors
- 👤 Ronald L. Hart
- 👤 Dale E. Work
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:34
CPC Classifications
C; C09; C09K; C09K5/00; C09K5/02; C09K5/06; C09K5/063; F; F28; F28D; F28D20/00; F28D20/02; F28D20/023; Y; Y02; Y02E; Y02E60/00; Y02E60/14
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
64 words
A microencapsulated flame resistant or flame retardant phase change material consisting essentially of a microcapsule wall former encapsulating a phase change material as an internal phase, said phase change material being a halogenated paraffin having 10 to 22 carbon atoms, wherein said halogenated paraffin is selected from the group consisting of a mono-chlorinated paraffin, a poly-chlorinated paraffin, a mono-brominated paraffin and a poly-brominated paraffin.
Claim 2
Dependent Claim
64 words
A microencapsulated flame resistant or flame retardant phase change material consisting essentially of a microcapsule wall former encapsulating a phase change material as an internal phase, said phase change material being a halogenated paraffin having 10 to 22 carbon atoms, wherein said halogenated paraffin is selected from the group consisting of a mono-chlorinated paraffin, a poly-chlorinated paraffin, a mono-brominated paraffin and a poly-brominated paraffin.
Claim 3
Dependent Claim
71 words
A fiber or filament containing a microencapsulated flame resistant or flame retardant phase change material, said phase change material consisting essentially of a microcapsule wall former encapsulating said phase change material as an internal phase, said phase change material being a halogenated paraffin having 10-22 carbon atoms, wherein said halogenated paraffin is selected from the group consisting of a mono-chlorinated paraffin, a poly-chlorinated paraffin, a mono-brominated paraffin and a poly-brominated paraffin.
Claim 4
Dependent Claim
71 words
A fiber or filament containing a microencapsulated flame resistant or flame retardant phase change material, said phase change material consisting essentially of a microcapsule wall former encapsulating said phase change material as an internal phase, said phase change material being a halogenated paraffin having 10-22 carbon atoms, wherein said halogenated paraffin is selected from the group consisting of a mono-chlorinated paraffin, a poly-chlorinated paraffin, a mono-brominated paraffin and a poly-brominated paraffin.
Claim 5
Dependent Claim
29 words
The fiber or filament of claim 2 wherein said fiber or filament is selected from the group consisting of wool, cotton, acrylic, rayon, nylon, polyester, polyamide, polyolefin and polytetrafluoroethylene.
References Cited (Backward Citations)
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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) | 1998-07-24 | 1999-01-23 | 1999-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-07-24 | 2003-01-23 | 2003-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-07-24 | 2007-01-23 | 2007-07-25 | $7700.00 | Window Closed / Lapsed |