Patent US5237014A successfully refreshed from Google Patents.
US5237014A
Expired / Lapsed
US
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Tree resistant compositions
Assignee: Union Carbide Chemicals and Plastics Technology LLC
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Filing: 1989-05-08
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Granted: 1993-08-17
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Expires: 2009-05-08
Abstract
Abstract A water tree resistant composition comprising: (a) a thermoplastic resin; grafted with (b) 2-acrylamido-2-methylpropanesulfonic acid.
Inventors
- 👤 Austin E. Barnabeo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:38
CPC Classifications
C; C08; C08F; C08F220/00; C08F220/02; C08F220/52; C08F220/54; C08F220/58; C08F220/585; C08F255/00; C08F255/02; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31652; Y10T428/31663; Y10T428/31855; Y10T428/31935; Y10T428/31938
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
95 words
An electrical conductor insulated with (a) a homopolymer of ethylene; a copolymer of ethylene and one or more of C3 or higher alpha-olefins, unsaturated esters, and hydrolyzable silanes; a crosslinkable hydrolyzable silane grafted homopolymer of ethylene or copolymer of ethylene and one or more of C3 or higher alpha-olefins and unsaturated esters; or mixtures thereof; and (b) grafted to component (a), a compound having the following formula; ##STR4## wherein R=H or CH 3 R'=CH 3 or C 2 H 5 , and each R' can be alike or different a=an integer from 1 to 4.
Claim 2
Dependent Claim
95 words
An electrical conductor insulated with (a) a homopolymer of ethylene; a copolymer of ethylene and one or more of C3 or higher alpha-olefins, unsaturated esters, and hydrolyzable silanes; a crosslinkable hydrolyzable silane grafted homopolymer of ethylene or copolymer of ethylene and one or more of C3 or higher alpha-olefins and unsaturated esters; or mixtures thereof; and (b) grafted to component (a), a compound having the following formula; ##STR4## wherein R=H or CH 3 R'=CH 3 or C 2 H 5 , and each R' can be alike or different a=an integer from 1 to 4.
Claim 3
Dependent Claim
12 words
The insulated conductor of claim 1 wherein component (b) is 2-acrylamido-2-methylpropane-sulfonic acid.
Claim 4
Dependent Claim
48 words
The insulated conductor of claim 1 wherein component (a) is a high-pressure homopolymer of ethylene; a copolymer of ethylene and an alpha-olefin having 3 to 12 carbon atoms; an ethylene/ethyl acrylate copolymer; an ethylene/ethyl acrylate/hydrolyzable silane terpolymer; or an ethylene/ethyl acrylate copolymer having a hydrolyzable silane grafted thereto.
Claim 5
Dependent Claim
17 words
The insulated conductor of claim 1 wherein a major proportion of component (a) is based on ethylene.
Claim 6
Dependent Claim
11 words
The insulated conductor of claim 1 wherein component (a) is crosslinked.
Claim 7
Dependent Claim
24 words
The insulated conductor of claim 1 wherein component (a) is a blend of an ethylene/ hydrolyzable silane copolymer and an ethylene/ethyl acrylate/hydrolyzable silane terpolymer.
Claim 8
Dependent Claim
32 words
The insulated conductor of claim 1 wherein component (b) is present in an amount of about 0.1 to about 4 parts by weight per 100 parts by weight of component (a) resin.
Claim 9
Dependent Claim
23 words
The insulated conductor of claim 7 wherein component (b) is present in an amount of about 0.25 to about 2 parts 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) | 1996-08-16 | 1997-02-15 | 1997-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-08-16 | 2001-02-15 | 2001-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-08-16 | 2005-02-15 | 2005-08-17 | $7700.00 | Window Closed / Lapsed |