US4443256A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aluminum flake dispersions
Assignee: EIDP Inc
•
Filing: 1982-08-31
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Granted: 1984-04-17
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Expires: 2002-08-31
Abstract
Abstract Aluminum flake can be dispersed advantageously in a mixture of ethylene glycol and ethylene glycol monobutyl ether for use in solvent-based dispersions of poly(arylene sulfide) and optionally fluorocarbon.
Inventors
- 👤 Jozef T. Huybrechts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:30
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08J3/09; C08J3/11; C08K; C08K3/00; C08K3/02; C08K3/08; C09; C09D; C09D17/00; C09D17/004; C09D17/006; C09D5/00; C09D5/38; C08J2381/00; C08J2381/02
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
41 words
A dispersion consisting of aluminum flakes in a mixture of ethylene glycol and ethylene glycol monobutyl ether wherein each of the ethylene glycol and ethylene glycol monobutyl ether is present in amounts of about 40-60% by weight of the two combined.
Claim 2
Dependent Claim
41 words
A dispersion consisting of aluminum flakes in a mixture of ethylene glycol and ethylene glycol monobutyl ether wherein each of the ethylene glycol and ethylene glycol monobutyl ether is present in amounts of about 40-60% by weight of the two combined.
Claim 3
Dependent Claim
21 words
The dispersion of claim 1 wherein the proportions are, by weight, about 55% ethylene glycol and 45% ethylene glycol monobutyl ether.
References Cited (Backward Citations)
US2596101A
Cited
US4221601A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-04-17 | 1987-10-17 | 1988-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-04-17 | 1991-10-17 | 1992-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-04-17 | 1995-10-17 | 1996-04-17 | $7700.00 | Window Closed / Lapsed |