US4356284A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoplastic compositions containing polyvinylidene fluoride and chlorinated polyethylene
Assignee: Flexible Technologies Inc
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Filing: 1981-10-29
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Granted: 1982-10-26
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Expires: 2001-10-29
Abstract
Abstract Thermoplastic compositions comprising a resin admixture of chlorinated polyethylene with polyvinylidene fluoride are described. These compositions may be formed into a flexible film having particular utility as a laminate for web which may be employed under conditions requiring high stability and flame resistance.
Inventors
- 👤 Thomas A. Kutnyak
- 👤 Mahendra N. Desai
- 👤 Roy A. Berman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 03:52
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/26; C08L23/28; C08L23/286; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/294; Y10T428/31504; Y10T428/3154; Y10T428/31678; Y10T428/31692; Y10T428/31699
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
28 words
A thermoplastic composition comprising an intimate resin admixture of from 50 to 95% of chlorinated polyethylene with from 50 to 5% of polyvinylidiene fluoride by total resin weight.
Claim 2
Dependent Claim
28 words
A thermoplastic composition comprising an intimate resin admixture of from 50 to 95% of chlorinated polyethylene with from 50 to 5% of polyvinylidiene fluoride by total resin weight.
Claim 3
Dependent Claim
17 words
The composition of claim 1, wherein the chlorinated polyethylene contains from 30 to 70% chlorine by weight.
Claim 4
Dependent Claim
18 words
The composition of claim 1, wherein the chlorinated polyethylene has a molecular weight of from 80,000 to 170,000.
Claim 5
Dependent Claim
18 words
The composition of claim 1, wherein the polyvinylidene fluoride has a molecular weight of from 160,000 to 185,000.
Claim 6
Dependent Claim
15 words
The composition of claim 1, wherein the resin admixture is essentially free of vinyl chloride.
Claim 7
Dependent Claim
21 words
The composition of claim 1, wherein the resin admixture contains from 5 to 200% of particulate inorganic filler by resin weight.
Claim 8
Dependent Claim
13 words
The composition of claim 1, wherein the resin admixture comprises a flexible film.
Claim 9
Dependent Claim
34 words
The composition of claim 7, wherein the resin admixture comprises from 60 to 90% of the chlorinated polyethylene containing from 35 to 50% chlorine and from 10 to 40% of polyvinylidene fluoride by weight.
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) | 1985-10-25 | 1986-04-26 | 1986-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-10-25 | 1990-04-26 | 1990-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-10-25 | 1994-04-26 | 1994-10-26 | $7700.00 | Window Closed / Lapsed |