US4732944A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ionomer resin films
Assignee: Artistic Glass Products Co
•
Filing: 1986-05-27
•
Granted: 1988-03-22
•
Expires: 2006-05-27
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
2026-10-28 16:12
CPC Classifications
B; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/1055; B32B17/10743; B32B17/10009; B32B17/10018; B32B17/10036; B32B17/10045; B32B17/10064; B32B17/10165; B32B17/1033; B32B17/10688; B32B17/10697; B32B27/00; B32B27/36; C; C08; C08F; C08F8/00; C08F8/44; Y; Y10; Y10S; Y10S260/00; Y10S260/31
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
26 words
In a copolymer containing alpha olefin units and alpha, beta ethylenically unsaturated carboxylic acid units, the improvement which comprises said copolymer being cross-linked with isophorone diamine.
Claim 2
Dependent Claim
26 words
In a copolymer containing alpha olefin units and alpha, beta ethylenically unsaturated carboxylic acid units, the improvement which comprises said copolymer being cross-linked with isophorone diamine.
Claim 3
Dependent Claim
22 words
An ionomer resin as claimed in claim 1, wherein said acid polymer is comprised of a partially neutralized hydrocarbon carboxylic acid copolymer.
Claim 4
Dependent Claim
21 words
An ionomer resin as claimed in claim 2, wherein said acid polymer is at least partially neutralized with a metal cation.
Claim 5
Dependent Claim
35 words
An ionomer resin as claimed in claim 3, wherein said acid polymer is at least partially neutralized with a cation selected from the group consisting of sodium, alkali metals, ammonium salt, aluminum salt, and zinc.
Claim 6
Dependent Claim
31 words
An ionomer resin as claimed in claim 2, wherein said acid polymer is selected from the group consisting of sodium and zinc ionomers of copolymers of ethylene-methacrylic acid and ethylene-acrylic acid.
Claim 7
Dependent Claim
15 words
The copolymer of claim 1 which is at least partially neutralized with a metal cation.
Claim 8
Dependent Claim
23 words
The copolymer of claim 6 wherein said metal cation is selected from the group consisting of alkali metals, aluminum, zinc and mixtures thereof.
Claim 9
Dependent Claim
11 words
The copolymer of claim 7 wherein said metal cation is sodium.
Claim 10
Dependent Claim
16 words
The copolymer of claim 7 wherein said cation is a mixture of zinc and sodium cations.
Claim 11
Dependent Claim
10 words
The copolymer of claim 1 which is a transparent film.
Claim 12
Dependent Claim
11 words
The copolymer of claim 1 which is thicker than 50 mils.
Claim 13
Dependent Claim
12 words
A sodium ionomer of ethylene methacrylic acid copolymer cross-linked with isophorone diamine.
Claim 14
Dependent Claim
12 words
A sodium ionomer of ethylene methacrylic acid copolymer cross-linked with isophorone diamine.
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) | 1991-03-22 | 1991-09-21 | 1992-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-03-22 | 1995-09-21 | 1996-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-03-22 | 1999-09-21 | 2000-03-22 | $7700.00 | Window Closed / Lapsed |