Patent US3666307A successfully refreshed from Google Patents.
US4619973A
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Ionomer resin films
Assignee: Artistic Glass Products Co
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Filing: 1984-08-17
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Granted: 1986-10-28
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Expires: 2004-08-17
Abstract
Abstract An ionomer resin, a film or sheet of the ionomer resin and laminated articles having a lamina of the ionomer resin film are provided. The ionomer resin consists of ionically crosslinked ethylene-methacrylic acid copolymer or ethylene-acrylic acid copolymer which is neutralized with a polyamine, preferably a diamine, that contains at least one R--CH 2 --NH 2 group and the R may contain: (--CH 2 NH 2 ) x ; (--NH 2 ) x ; or (R'R"NH) y where x=1 or more, y=0 or more. The polyamine neutralized ionomer resin may be formed into a film or sheet which may be self-supporting or may be laminated to glass to form a safety glass.
Inventors
- 👤 W. Novis Smith, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:10
CPC Classifications
B; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/10009; B32B17/10018; B32B17/10036; B32B17/10045; B32B17/10064; B32B17/1055; B32B17/10688; B32B17/10743; C; C08; C08F; C08F8/00; C08F8/44; C08F2800/00; C08F2800/20; Y; Y10; Y10S; Y10S260/00; Y10S260/31; Y10T; Y10T428/00; Y10T428/26; Y10T428/31504; Y10T428/31551; Y10T428/31645
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
19 words
A sodium ionomer of ethylene methacrylic acid copolymer cross-linked with about 0.3 to about 10% by weight of bis(1,3-aminomethyl)cyclohexane.
Claim 2
Dependent Claim
19 words
A sodium ionomer of ethylene methacrylic acid copolymer cross-linked with about 0.3 to about 10% by weight of bis(1,3-aminomethyl)cyclohexane.
Claim 3
Dependent Claim
11 words
The cross-linked ionomer of claim 1 which is a transparent film.
Claim 4
Dependent Claim
12 words
The cross-linked ionomer of claim 2 which is thicker than 50 mils.
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) | 1989-10-27 | 1990-04-28 | 1990-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-10-27 | 1994-04-28 | 1994-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-10-27 | 1998-04-28 | 1998-10-28 | $7700.00 | Window Closed / Lapsed |