Patent US5153382A successfully refreshed from Google Patents.
US5153382A
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Extrusion of thermoplastic copolymers
Assignee: Union Carbide Chemicals and Plastics Technology LLC
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Filing: 1991-04-18
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Granted: 1992-10-06
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Expires: 2011-04-18
Abstract
Abstract A process for extruding a thermoplastic polymer comprising: (a) introducing into an extruder a copolymer of ethylene wherein one of the copolymerized monomers has the following formula: CH2=C[(CH2)n-CH3]-Si(OR)3 wherein each R is independently a saturated aliphatic group having 1 to 4 carbon atoms; and n is 0, 1 or 2; (b) extruding the copolymer of step (a); and, thereafter, (c) contacting the extrudate with sufficient moisture to effect crosslinking.
Inventors
- 👤 Laurence H. Gross
- 👤 Jeffrey D. Umpleby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:01
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/44; H01B3/441; C; C08; C08F; C08F8/00; C08F8/12; C08F2810/00; C08F2810/20; C08L; C08L23/00; C08L23/02; C08L23/04; C08L23/08; C08L23/0846; C08L23/0869; C08L23/0884; C08L2312/00; C08L2312/08; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
72 words
An article of manufacture comprising an electrical conductor or communications medium surrounded by at least one layer comprising a thermoplastic polymer consisting of copolymerized ethylene, a silane monomer, and, optionally, one or more other alpha olefin monomers and/or diolefins wherein said silane monomer is of the formula: CH.sub.2 ═C--[(CH.sub.2).sub.n --CH.sub.3 ]--Si(OR).sub.3 wherein each R is independently an alkyl group having 1 to 4 carbon atoms; and n is 0, 1, or 2.
Claim 2
Dependent Claim
72 words
An article of manufacture comprising an electrical conductor or communications medium surrounded by at least one layer comprising a thermoplastic polymer consisting of copolymerized ethylene, a silane monomer, and, optionally, one or more other alpha olefin monomers and/or diolefins wherein said silane monomer is of the formula: CH.sub.2 ═C--[(CH.sub.2).sub.n --CH.sub.3 ]--Si(OR).sub.3 wherein each R is independently an alkyl group having 1 to 4 carbon atoms; and n is 0, 1, or 2.
Claim 3
Dependent Claim
16 words
The article of manufacture defined in claim 1 wherein the polymer is in a crosslinked state.
References Cited (Backward Citations)
US4297310A
Cited
US4297310B1
Cited
US4397981A
Cited
US4894284A
Cited
US4937284A
Cited
US4983675A
Cited
US4840983A
Cited
US5034278A
Cited
US5047476A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-10-06 | 1996-04-06 | 1996-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-10-06 | 2000-04-06 | 2000-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-10-06 | 2004-04-06 | 2004-10-06 | $7700.00 | Window Closed / Lapsed |