Patent US6207738B1 successfully refreshed from Google Patents.
US6207738B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fabric coating composition containing energy absorbing phase change material
Assignee: Latent Heat Solutions LLC
•
Filing: 1997-05-05
•
Granted: 2001-03-27
•
Expires: 2017-05-05
Abstract
Abstract A coating composition for fabrics includes wetted microspheres containing a phase change material dispersed throughout a polymer binder, a surfactant, a dispersant, an antifoam agent and a thickener. Preferred phase change materials include paraffinic hydrocarbons. The microspheres may be microencapsulated. To prepare the coating composition, microspheres containing phase change material are wetted and dispersed in a dispersion in a water solution containing a surfactant, a dispersant, an antifoam agent and a polymer mixture. The coating is then applied to a fabric.
Inventors
- 👤 Joseph L. Zuckerman
- 👤 Robert J. Pushaw
- 👤 Bernard T. Perry
- 👤 Daniel M. Wyner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:27
CPC Classifications
D; D06; D06N; D06N3/00; D06N3/0056; D06N3/0061; D04; D04H; D04H11/00; D06M; D06M23/00; D06M23/12; F; F28; F28D; F28D20/00; F28D20/02; F28D20/023; Y; Y02; Y02E; Y02E60/00; Y02E60/14
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
129 words
A wet coating composition, for coating fabrics to produce coated fabrics specially adapted for thermal regulation across the coated fabrics, comprising: 100 parts dry weight of a polymer binder; 70 to 500 parts by dry weight of thermo-set microspheres containing a phase change material having a capacity for repeated thermal regulation for each 100 parts dry weight of said polymer binder; 0.001% to 6% dry weight of a surfactant based on the dry weight of said microspheres; 0.001% to 6% dry weight of a dispersant based on the dry weight of said microspheres; 25% to 80% by weight water based on the total weight of the wet coating composition; and 0% to 1% by weight of dry antifoam agent based on the total weight of the wet coating composition.
Claim 2
Dependent Claim
129 words
A wet coating composition, for coating fabrics to produce coated fabrics specially adapted for thermal regulation across the coated fabrics, comprising: 100 parts dry weight of a polymer binder; 70 to 500 parts by dry weight of thermo-set microspheres containing a phase change material having a capacity for repeated thermal regulation for each 100 parts dry weight of said polymer binder; 0.001% to 6% dry weight of a surfactant based on the dry weight of said microspheres; 0.001% to 6% dry weight of a dispersant based on the dry weight of said microspheres; 25% to 80% by weight water based on the total weight of the wet coating composition; and 0% to 1% by weight of dry antifoam agent based on the total weight of the wet coating composition.
Claim 3
Dependent Claim
14 words
The coating of claim 1 wherein said phase change material is a paraffinic hydrocarbon.
Claim 4
Dependent Claim
47 words
The coating of claim 2 wherein said polymer binder is an anionic acrylic polymer latex, said microspheres are from 70 to 300 parts by dry weight of said polymer latex and said water is from 40% to 60% of the total weight of the wet coating composition.
Claim 5
Dependent Claim
29 words
The coating of claim 2 wherein said polymer binder is film-forming, elastomeric and has a glass transition temperature in the range of about −45° C. to about +45° C.
Claim 6
Dependent Claim
29 words
The coating of claim 2 wherein said polymer binder is film-forming, elastomeric and has a glass transition temperature in the range of about −30° C. to about +12° C.
Claim 7
Dependent Claim
36 words
The coating of claim 2 wherein said polymer binder is derived from monomers selected from the group consisting of acrylic esters, styrene, isoprene, acrylonitrile, butadiene, vinyl acetate, vinyl chloride, vinyldiene chloride, ethylene, butylene, propylene and chloroprene.
Claim 8
Dependent Claim
25 words
The coating of claim 2 wherein said binder polymer is selected from the group consisting of silicone, epoxy, polyurethane, fluorocarbons, chlorosulfonated polyethylene and chlorinated polyethylene.
Claim 9
Dependent Claim
24 words
The coating of claim 5 wherein the dry weight ratio of said dispersant to dry weight of said microspheres is from 0.1 to 1%.
Claim 10
Dependent Claim
24 words
The coating of claim 5 wherein the dry weight ratio of said surfactant to dry weight of said microspheres is from 0.1 to 1%.
Claim 11
Dependent Claim
52 words
The coating of claim 1 further comprising: 0.3% to 18% by dry weight of a foam stabilizing agent selected from the group consisting of inorganic salts of fatty acids, sulfate partial esters of inorganic salts of fatty acids, anionic surfactants, and mixtures thereof, based on the weight of the wet coating composition.
Claim 12
Dependent Claim
43 words
The coating of claim 1 further comprising: 0.3% to 18% by dry weight of a foam stabilizing agent selected from the group consisting of sodium lauryl sulfate, ammonium stearate, di-sodium-n-octadecyl sulfosuccinamate and mixtures thereof, based on the weight of the wet coating composition.
Claim 13
Dependent Claim
35 words
The coating of claim 1 further comprising: 0.2% to 10% by dry weight of dry ammonium stearate based on the weight of the wet coating composition; and 0.1% to 8% by weight of dry di-sodium-n-octadecyl-sulfosuccinamate.
Claim 14
Dependent Claim
34 words
The coating of claim 1 further comprising: 1% to 3% by dry weight of dry ammonium stearate based on the of the wet coating composition; and 0.3% to 2% by weight of dry di-sodium-n-octadecyl-sulfosuccinamate.
References Cited (Backward Citations)
US3615972A
Cited
US3769126A
Cited
US3852401A
Cited
US4006273A
Cited
US4003426A
Cited
US4208485A
Cited
US4446917A
Cited
US4357428A
Cited
US4747240A
Cited
US4612239A
Cited
US4581285A
Cited
US4504402A
Cited
US4531511A
Cited
US4587279A
Cited
US4617332A
Cited
US4825939A
Cited
US4797160A
Cited
US4572864A
Cited
US4774133A
Cited
US4645613A
Cited
US5053446A
Cited
US4711813A
Cited
US5254380A
Cited
US5106520A
Cited
US4900617A
Cited
US4939020A
Cited
US4756958A
Cited
US4856294A
Cited
US4856294B1
Cited
US4853270A
Cited
US4935294A
Cited
US5211949A
Cited
US5282994A
Cited
US5155138A
Cited
US5069358A
Cited
US5290904A
Cited
US5224356A
Cited
US5499460A
Cited
WO1993024241A1
Cited
US5366801A
Cited
US5571592A
Cited
US5360826A
Cited
US5415222A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2004-03-26 | 2004-09-25 | 2005-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-03-26 | 2008-09-25 | 2009-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-03-26 | 2012-09-25 | 2013-03-27 | $7700.00 | Window Closed / Lapsed |