US3940355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition and method for imparting fire resistance and water repellency to fabric
Assignee: MARCHEM COATED FABRICS Inc
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Filing: 1974-07-22
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Granted: 1976-02-24
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Expires: 1994-07-22
Abstract
Abstract A coating composition useful for imparting fire resistance and water-repellency to fabric comprises between about 5% and about 23% by weight of a liquid chlorinated paraffin, between about 20% and about 40% by weight of a resinous chlorinated paraffin, between about 4% and about 12% by weight of a copolymer of ethylene and vinyl acetate, between about 3% and about 18% by weight of a fire retardant, and up to about 15% by weight of an organic solvent. A novel water-repellent and fire resistant fabric material, and a method of preparing such material by coating tentage fabric with the composition of the invention are also disclosed.
Inventors
- 👤 John W. Engelbrecht
- 👤 John C. Lockard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:33
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; C; C08; C08K; C08K3/00; C08K3/18; C08K3/20; C08K3/22; C08L; C08L23/00; C08L23/02; C08L23/04; C08L23/08; C08L91/00; C08L91/06; C08L91/08; D06M13/00; D06M13/08
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
78 words
A coating composition useful for imparting fire resistance and water-repellency to fabric comprising between about 5% and about 23% by weight of a liquid chlorinated paraffin, between about 20% and about 40% by weight of a resinous chlorinated paraffin, between about 4% and about 12% by weight of a copolymer of ethylene and vinyl acetate, between about 3% and about 18% by weight of a fire retardant, and up to about 15% by weight of an organic solvent.
Claim 2
Dependent Claim
78 words
A coating composition useful for imparting fire resistance and water-repellency to fabric comprising between about 5% and about 23% by weight of a liquid chlorinated paraffin, between about 20% and about 40% by weight of a resinous chlorinated paraffin, between about 4% and about 12% by weight of a copolymer of ethylene and vinyl acetate, between about 3% and about 18% by weight of a fire retardant, and up to about 15% by weight of an organic solvent.
Claim 3
Dependent Claim
32 words
A coating composition as set forth in claim 1 further comprising up to about 30% by weight of a paraffin wax having a melt point of between about 124°F. and about 160°F.
Claim 4
Dependent Claim
20 words
A coating composition as set forth in claim 1 further comprising up to about 50% by weight of a filler.
Claim 5
Dependent Claim
35 words
A composition as set forth in claim 3 wherein said filler is selected from the group consisting of calcium carbonate, zinc oxide, kaolin, diatomaceous earth, litharge, mica, talc, alumina, silica, hydrated alumina, montmorillonite and attapulgite.
Claim 6
Dependent Claim
14 words
A composition as set forth in claim 4 wherein the filler is calcium carbonate.
Claim 7
Dependent Claim
19 words
A composition as set forth in claim 3 further comprising up to about 20% by weight of a pigment.
Claim 8
Dependent Claim
19 words
A composition as set forth in claim 1 further comprising up to about 3% by weight of a fungicide.
Claim 9
Dependent Claim
22 words
A composition as set forth in claim 1 wherein said liquid chlorinated paraffin has a chlorine content of approximately 40% by weight.
Claim 10
Dependent Claim
22 words
A composition as set forth in claim 1 wherein said resinous chlorinated paraffin has a chlorine content of approximately 70% by weight.
Claim 11
Dependent Claim
30 words
A composition as set forth in claim 1 wherein said copolymer of ethylene and vinyl acetate has a vinyl acetate content of between about 15% and about 40% by weight.
Claim 12
Dependent Claim
18 words
A composition as set forth in claim 10 wherein said copolymer contains approximately 18% by weight vinyl acetate.
Claim 13
Dependent Claim
68 words
A composition as set forth in claim 2 containing approximately 13% by weight of said liquid chlorinated paraffin, approximately 34% by weight of said resinous chlorinated paraffin, approximately 8% by weight of said ethylene/vinyl acetate copolymer, approximately 6% by weight of said fire retardant, approximately 9% by weight of said paraffin wax, approximately 24% by weight of a filler and approximately 5% by weight of an organic solvent.
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) | 1979-02-23 | 1979-08-25 | 1980-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-02-23 | 1983-08-25 | 1984-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-02-23 | 1987-08-25 | 1988-02-24 | $7700.00 | Window Closed / Lapsed |