Patent US3928664A successfully refreshed from Google Patents.
US3928664A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ozone treatment of elastomers
Assignee: EIDP Inc
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Filing: 1973-01-17
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Granted: 1975-12-23
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Expires: 1993-01-17
Abstract
Abstract Contacting surface of sulfur-cured ethylene, propylene, nonconjugated diene elastomer containing carbon black with ozone in concentration of at least 100 parts per million of the atmosphere to condition the surface for painting.
Inventors
- 👤 Robert Edward Tarney
- 👤 John Joseph Verbanc
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:31
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/12; B; B05; B05D; B05D3/00; B05D3/04; B05D3/0433; B05D3/044; B05D3/0446; C08J7/04; C08J7/0427; C08J7/043; B05D2201/00; C08J2323/00; C08J2323/02; C08J2323/16
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
69 words
A PROCESS FOR MODIFYING THE SURFACE OF A VULCANIZED ELASTOMER TO INSURE ADEQUATE PAINT ADHERSION THERETO WHICH COMPRISES CONTACTING A SULFUR-CURED ETHYLENE, PROPYLENE, NONCONJUGATED DIENE ELASTOMER CONTAINING REINFORCING CARBON BLACK IN AMOUNTS OF AT LEAST 50 PARTS PER HUNDERED PARTS OF ELASTOMER WITH A GASEOUS ATMOSPHERE CONTAINING AT LEAST AOBUT 100 PARTS PER MILLION OZONE FOR A TIME SUFFICIENT TO OXIDIZE SAID SURFACE THUS CONDITIONING THE SURFACE FOR PAINTING.
Claim 2
Dependent Claim
69 words
A PROCESS FOR MODIFYING THE SURFACE OF A VULCANIZED ELASTOMER TO INSURE ADEQUATE PAINT ADHERSION THERETO WHICH COMPRISES CONTACTING A SULFUR-CURED ETHYLENE, PROPYLENE, NONCONJUGATED DIENE ELASTOMER CONTAINING REINFORCING CARBON BLACK IN AMOUNTS OF AT LEAST 50 PARTS PER HUNDERED PARTS OF ELASTOMER WITH A GASEOUS ATMOSPHERE CONTAINING AT LEAST AOBUT 100 PARTS PER MILLION OZONE FOR A TIME SUFFICIENT TO OXIDIZE SAID SURFACE THUS CONDITIONING THE SURFACE FOR PAINTING.
Claim 3
Dependent Claim
23 words
A PROCESS OF CLAIM 1 WHEREIN THE ELASTOMER CONTAINS ABOUT FROM 75 TO 200 PARTS OF CARBON BLACK PER HUNDRED PARTS OF ELASTOMER.
Claim 4
Dependent Claim
22 words
A PROCESS OF CLAIM 2 WHEREIN THE ELASTOMER CONTAINS ABOUT FROM 10 TO 100 PARTS OF OIL PER HUNDRED PARTS OF ELASTOMER.
Claim 5
Dependent Claim
25 words
A process of claim 3 wherein the vulcanized elastomer is contacted with a gaseous atmosphere containing about from 100 to 40,000 parts per million ozone.
Claim 6
Dependent Claim
19 words
A process of claim 4 wherein the gaseous atmosphere contains about from 8,000 to 12,000 parts per million ozone.
Claim 7
Dependent Claim
23 words
A process of claim 4 wherein the vulcanized elastomer is contacted with the gaseous atmosphere for about from 30 seconds to 1 hour.
Claim 8
Dependent Claim
24 words
A process of claim 5 wherein the vulcanized elastomer is contacted with the gaseous ozone atmosphere for about from 30 seconds to 3 minutes.
Claim 9
Dependent Claim
11 words
A process of claim 7 wherein the nonconjugated diene is 1,4-hexadiene.
Claim 10
Dependent Claim
11 words
A process of claim 7 wherein the nonconjugated diene is 5-ethylidene-2-norbornene.
Claim 11
Dependent Claim
71 words
A PROCESS OF CLAIM 3 WHEREIN THE ADDITIONAL SUBSEQUENT STEPS OF APPLYING A FILM OF FLEXIBLE RESIN-BASED PAINT SELECTED FROM THE GROUP CONSISTING OF ACRYLIC RESIN, ALKYD RESIN, POLYESTER RESIN, POLYURETHANE OF PLASTICIZED NITROCELLULOSE LACQUER TO THE MODIFIED SURFACE OF THE ELASTOMER, AND BAKING THE SURFACE TO CURE SAID RESIN PAINT FILM THEREON, THEREBY PRODUCING AN ARTICLE IN WHICH PAINT CANNOT BE REMOVED THEREFROM WITHOUT TEARING THE SURFACE OF THE ELASTOMER.
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) | 1978-12-22 | 1979-06-23 | 1979-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-22 | 1983-06-23 | 1983-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-22 | 1987-06-23 | 1987-12-23 | $7700.00 | Window Closed / Lapsed |