US4731504A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-layer film structure and electrical cable incorporating same
Assignee: Dow Chemical Co
•
Filing: 1986-08-13
•
Granted: 1988-03-15
•
Expires: 2006-08-13
Abstract
Abstract A multi-layered adhesive composition particularly suited for adhesion between metallic substrates and vinyl chloride polymer resins particularly highly plasticized vinyl chloride polymer resins comprising a metal adherent layer, an intermediate layer and a vinyl chloride polymer adherent layer.
Inventors
- 👤 Felix Achille
- 👤 Daniel G. Pikula
- 👤 Patricia B. Leng
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:15
CPC Classifications
H; H01; H01B; H01B9/00; H01B9/02; H01B7/00; H01B7/17; H01B7/29; H01B7/295; C; C09; C09J; C09J7/00; C09J7/10; H01B3/00; H01B3/18; H01B3/30; H01B3/44; H01B3/441; H01B3/443; H01B7/28; H01B7/282; H01B7/285; H01B7/288; H01B7/42; Y; Y02; Y02A; Y02A30/00; Y02A30/14; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/294; Y10T428/2942; Y10T428/2947; Y10T428/31504; Y10T428/31536; Y10T428/31855; Y10T428/31909; Y10T428/31913; Y10T428/3192
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
108 words
A multiple layer adhesive film suitably employed to provide adhesion between a metallic substrate and a vinyl chloride polymer resin, the multiple layer adhesive film comprising a metal adherent layer of a copolymer of ethylene and up to about 20 percent by weight of one or more copolymerizable carboxy containing comonomers; an intermediate layer of a copolymer of ethylene and vinyl acetate containing from about 10 percent to about 40 percent by weight polymerized vinyl acetate; and a vinyl chloride polymer adherent layer of a polymer of ethylene and carbon monoxide or a copolymer of ethylene, carbon monoxide and one or more copolymerizable ethylenically unsaturated carboxy substituted comonomers.
Claim 2
Dependent Claim
108 words
A multiple layer adhesive film suitably employed to provide adhesion between a metallic substrate and a vinyl chloride polymer resin, the multiple layer adhesive film comprising a metal adherent layer of a copolymer of ethylene and up to about 20 percent by weight of one or more copolymerizable carboxy containing comonomers; an intermediate layer of a copolymer of ethylene and vinyl acetate containing from about 10 percent to about 40 percent by weight polymerized vinyl acetate; and a vinyl chloride polymer adherent layer of a polymer of ethylene and carbon monoxide or a copolymer of ethylene, carbon monoxide and one or more copolymerizable ethylenically unsaturated carboxy substituted comonomers.
Claim 3
Dependent Claim
29 words
A film according to claim 1, wherein the metal adherent layer additionally comprises the reaction product of up to about 10 percent by weight of a dicarboxylic acid anhydride.
Claim 4
Dependent Claim
30 words
A film according to claim 1, wherein the vinyl chloride polymer adherent layer comprises an ethylene carbon monoxide copolymer, an ethylene-acrylic acid-carbon monoxide terpolymer or an ethylene-vinyl acetate-carbon monoxide terpolymer.
Claim 5
Dependent Claim
25 words
A film according to claim 1, wherein the vinyl chloride polymer adherent layer comprises from about 5 percent to about 20 percent polymerized carbon monoxide.
Claim 6
Dependent Claim
133 words
A communications cable having improved fire resistance comprising an outer jacket of a vinyl chloride polymer resin, a multi-layer adhesive film comprising a metal adherent layer of a copolymer of ethylene and up to about 20 percent by weight of one or more copolymerizable carboxy containing comonomers; an intermediate layer of a copolymer of ethylene and vinyl acetate containing from about 10 percent to about 40 percent by weight polymerized vinyl acetate; and a vinyl chloride polymer adherent layer of a polymer of ethylene and carbon monoxide or a copolymer of ethylene, carbon monoxide and one or more copolymerizable ethylenically unsaturdated carboxy substituted comonomers, a metallic shield and a conductor assembly, the metallic shield being wrapped circumferentially around the conductor assembly and adhered to the jacket by means of the multi-layer adhesive film.
Claim 7
Dependent Claim
133 words
A communications cable having improved fire resistance comprising an outer jacket of a vinyl chloride polymer resin, a multi-layer adhesive film comprising a metal adherent layer of a copolymer of ethylene and up to about 20 percent by weight of one or more copolymerizable carboxy containing comonomers; an intermediate layer of a copolymer of ethylene and vinyl acetate containing from about 10 percent to about 40 percent by weight polymerized vinyl acetate; and a vinyl chloride polymer adherent layer of a polymer of ethylene and carbon monoxide or a copolymer of ethylene, carbon monoxide and one or more copolymerizable ethylenically unsaturdated carboxy substituted comonomers, a metallic shield and a conductor assembly, the metallic shield being wrapped circumferentially around the conductor assembly and adhered to the jacket by means of the multi-layer adhesive film.
Claim 8
Dependent Claim
21 words
A cable according to claim 5 additionally comprising a water absorbable layer disposed between the metallic shield and the conductor assembly.
Claim 9
Dependent Claim
16 words
A cable according to claim 6, wherein the water absorbable layer comprises a polymer of acrylamide.
References Cited (Backward Citations)
US4351931A
Cited
US3467569A
Cited
US3681515A
Cited
US4132857A
Cited
US4004077A
Cited
US4269321A
Cited
US4292463A
Cited
US4308416A
Cited
US4449014A
Cited
US4501928A
Cited
WO1985001294A1
Cited
US4623587A
Cited
US4487641A
Cited
JPH05165427A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-03-15 | 1991-09-14 | 1992-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-03-15 | 1995-09-14 | 1996-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-03-15 | 1999-09-14 | 2000-03-15 | $7700.00 | Window Closed / Lapsed |