US4311635A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame resistant thermoplastic elastomer
Assignee: PANTASOTE Inc PP
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Filing: 1980-08-25
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Granted: 1982-01-19
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Expires: 2000-08-25
Abstract
Abstract An elastomeric thermoplastic graft terpolymer of vinyl chloride and an ethylene-vinyl acetate copolymer containing kaolin, talc, silica or alumina as a flame retardant, smoke and soot-inhibiting filler and, conventionally, a flame retardant.
Inventors
- 👤 Stanley Pearson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:52
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/01; C08K3/013
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
120 words
A polymeric composition, comprising (1) a graft terpolymer of: (a) from about 40 to about 60 parts by weight of a mixture from about 85 to about 100% by weight of vinyl chloride and from 0 to about 15% by weight of a copolymerizable monomer; graft copolymerized to (b) from about 60 to about 40 parts by weight of a solid ethylene-vinyl acetate copolymer containing from about 15 to about 95% by weight of combined ethylene and the balance vinyl acetate; and (2) from about 5 to about 100 parts by weight, per hundred parts by weight of the graft terpolymer, of a flame retardant, smoke and soot-inhibiting filler selected from the group consisting of kaolin, talc, silica or alumina.
Claim 2
Dependent Claim
120 words
A polymeric composition, comprising (1) a graft terpolymer of: (a) from about 40 to about 60 parts by weight of a mixture from about 85 to about 100% by weight of vinyl chloride and from 0 to about 15% by weight of a copolymerizable monomer; graft copolymerized to (b) from about 60 to about 40 parts by weight of a solid ethylene-vinyl acetate copolymer containing from about 15 to about 95% by weight of combined ethylene and the balance vinyl acetate; and (2) from about 5 to about 100 parts by weight, per hundred parts by weight of the graft terpolymer, of a flame retardant, smoke and soot-inhibiting filler selected from the group consisting of kaolin, talc, silica or alumina.
Claim 3
Dependent Claim
31 words
The composition according to claim 1, wherein the amount of said filler is from about 50 to about 100 parts by weight per hundred parts by weight of said graft terpolymer
Claim 4
Dependent Claim
12 words
The composition according to claim 2, wherein said filler is hydrated kaolin.
Claim 5
Dependent Claim
30 words
The composition according to claim 1, which comprises from about 0.1 to about 20 parts by weight, per hundred parts by weight of said graft terpolymer, of a flame retardant.
Claim 6
Dependent Claim
32 words
The composition according to claim 4, wherein the amount of said flame ratardant is from about 1 to about 10 parts by weight per hundred parts by weight of said graft terpolymer.
Claim 7
Dependent Claim
12 words
The composition according to claim 5, wherein said filler is hydrated kaolin.
Claim 8
Dependent Claim
28 words
The composition according to claim 4, wherein the amount of said hydrated filler is from about 10 to about 80 parts per hundred parts of said graft copolymer.
Claim 9
Dependent Claim
37 words
The composition according to claim 7, wherein said flame retardant is an antimony oxide in an amount of from about 2 l to about 10 parts by weight per hundred parts by weight of said graft terpolymer.
Claim 10
Dependent Claim
19 words
The composition according to claim 8, wherein said filler is hydrated kaolin and said flame retardant is antimony trioxide.
Claim 11
Dependent Claim
33 words
The composition according to claim 4, wherein said flame retardant is selected from the group consisting of chlorinated or brominated hydrocarbons, halogenated or non-halogenated organophosphorous compounds, antimony compounds, zinc compounds and molybdenum compounds.
Claim 12
Dependent Claim
41 words
The composition according to claim 1, wherein said terpolymer contains 47% EVA copolymer (55% ethylene-45% vinyl acetate) and 53% PVC, 50% EVA copolymer (48% ethylene-52% vinyl acetate) and 50% PVC, or 57% EVA copolymer (48% ethylene-52% vinyl acetate) and 43% PVC.
Claim 13
Dependent Claim
12 words
The composition according to claim 1, wherein said filler is hydrated kaolin.
Claim 14
Dependent Claim
12 words
The composition according to claim 1, wherein said filler is calcined kaolin.
Claim 15
Dependent Claim
11 words
The composition according to claim 1, wherein said filler is talc.
Claim 16
Dependent Claim
11 words
The composition according to claim 1, wherein said filler is silica.
Claim 17
Dependent Claim
11 words
The composition according to claim 1, wherein said filler is alumina.
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) | 1985-01-18 | 1985-07-20 | 1986-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-01-18 | 1989-07-20 | 1990-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-01-18 | 1993-07-20 | 1994-01-19 | $7700.00 | Window Closed / Lapsed |