US3914201A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame and smoke retardant vinyl chloride and vinylidene chloride polymer compositions
Assignee: Goodrich Corp
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Filing: 1974-06-24
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Granted: 1975-10-21
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Expires: 1994-06-24
Abstract
Abstract Flame and smoke retardant vinyl chloride and vinylidene chloride polymer compositions are obtained by including therein a compound selected from the group consisting of Si3N4, MoS2 and mixtures thereof.
Inventors
- 👤 William J Kroenke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:49
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/30; C08K3/34
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
58 words
A FLAME AND SMOKE RETARDANT COMPOSITION COMPRISING (1) A VINYL CHLORIDE OR VINYLIDENE CHLORIDE POLYMER AND (2) A MIXTURE OF MOS2 AND SI3N4, SAID MIXTURE BEING PRESENT IN AN AMOUNT FROM ABOUT 0.5 TO ABOUT 10 WEIGHT PARTS PER 100 WEIGHT PARTS OF POLYMER AND HAVING AN AVERAGE PARTICLE SIZE FROM ABOUT 100 MICRONS TO ABOUT 0.5 MICRON.
Claim 2
Dependent Claim
58 words
A FLAME AND SMOKE RETARDANT COMPOSITION COMPRISING (1) A VINYL CHLORIDE OR VINYLIDENE CHLORIDE POLYMER AND (2) A MIXTURE OF MOS2 AND SI3N4, SAID MIXTURE BEING PRESENT IN AN AMOUNT FROM ABOUT 0.5 TO ABOUT 10 WEIGHT PARTS PER 100 WEIGHT PARTS OF POLYMER AND HAVING AN AVERAGE PARTICLE SIZE FROM ABOUT 100 MICRONS TO ABOUT 0.5 MICRON.
Claim 3
Dependent Claim
34 words
A composition of claim 1 wherein said polymer contains copolymerized therewith up to about 50% by weight of at least one other vinylidene monomer containing at least one terminal CH2 C< group per molecule.
Claim 4
Dependent Claim
22 words
A composition of claim 2 wherein said polymer contains copolymerized therewith up to about 20% by weight of said other vinylidene monomer.
Claim 5
Dependent Claim
52 words
A composition of claim 3 wherein said vinylidene monomer is selected from the group consisting of 1-olefins having from 2 to 12 carbon atoms, vinyl esters, Alpha , Beta -olefinically unsaturated carboxylic acids and esters thereof, amides of Alpha , Beta -olefinically unsaturated carboxylic acids, and esters of fumaric and maleic acid.
Claim 6
Dependent Claim
22 words
A composition of claim 4 wherein said compound has an average particle size of from about 40 microns to about 0.5 micron.
References Cited (Backward Citations)
US3821151A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-10-20 | 1979-04-21 | 1979-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-20 | 1983-04-21 | 1983-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-20 | 1987-04-21 | 1987-10-21 | $7700.00 | Window Closed / Lapsed |