US3754972A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phosphate esters and their use as adhesive promoters
Assignee: PPG Industries Inc
•
Filing: 1971-03-29
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Granted: 1973-08-28
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Expires: 1991-03-29
Abstract
Abstract A novel class of phosphate esters having a formula comprising either: WHEREIN R is selected from the group consisting of AN UNSATURATED HYDROCARBON RADICAL, D R A W I N G
Inventors
- 👤 R Sirkoch
- 👤 Majistre R De
- 👤 G Parker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:23
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/09; C07F9/091; B; B05; B05D; B05D3/00; B05D3/10; C08; C08F; C08F283/00; C08F283/01; B05D2301/00; B05D2301/10; B05D2320/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
23 words
The method of claim 1 wherein the coating is subjected to a total dosage of from about 0.2 megarad to about 300 megarads.
Claim 2
Dependent Claim
14 words
The method of claim 1 wherein the coating material is acryloxy pivalyl, acryloxy pivalate.
Claim 3
Dependent Claim
12 words
The method of claim 1 whrein the coating material is bis-(acryloxyethyl) hexahydrophthalate.
Claim 4
Dependent Claim
12 words
The method of claim 1 wherein the coating material is bis-(acryloxyethyl) phthalate.
Claim 5
Independent Claim
26 words
The method of forming an adherent coating on a substrate comprising applying to the substrate a compound having the formula selected from the group consisting of
Claim 6
Dependent Claim
23 words
The method of claim 6 wherein the coating is subjected to a total dosage of from about 0.2 megarad to about 300 magarads.
Claim 7
Dependent Claim
14 words
The method of claim 6 wherein the coating material is acryloxy pivalyl, acryloxy pivalate.
Claim 8
Dependent Claim
12 words
The method of claim 6, wherein the coating material is bis-(acryloxyethyl) hexahydrophthalate.
Claim 9
Dependent Claim
12 words
The method of claim 6 wherein the coating material is bis-(acryloxyethyl) phthalate.
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) | 1976-08-27 | 1977-02-26 | 1977-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-27 | 1981-02-26 | 1981-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-27 | 1985-02-26 | 1985-08-28 | $7700.00 | Window Closed / Lapsed |