US2883361A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light stable composition containing a blend of a synthetic rubber and a salicylate polymer
Assignee: EIDP Inc
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Filing: 1956-09-28
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Granted: 1959-04-21
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Expires: 1976-09-28
Abstract
No abstract record available.
Inventors
- 👤 Carleton T Handy
- 👤 Henry S Rothrock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:05
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C08L27/04; C08F; C08F18/00; C08F18/02; C08F18/04; C08F18/12; C08L23/00; C08L23/02; C08L25/00; C08L25/02; C08L25/04; C08L25/06; C08L31/00; C08L31/02; C08L31/04; C08L33/00; C08L33/04; C08L33/06; Y; Y10; Y10S; Y10S8/00; Y10S8/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
A COMPOSITE RESISTANT TO LIGHT RADIATIONS IN THE WAVE LENGTH RANGE OF ABOUT 2300 TO 3600 A., CONTAINING AN ORGANIC POLYMER SUBJECT TO DETERIORATION ON EXPOSURE TO LIGHT AND CONTAINING CARBON AND HYDROGEN WITH ANY ADDITIONAL ELEMENTS SELECTED FROM THE CLASS CONSISTING OF CHLORINE, OXYGEN AND SULFUR, SAID POLYMER BEING SELECTED FROM THE GROUP CONSISTING OF POLYMERS OF VINYLIDENE MONOMERS, POLYESTERS AND CELLULOSIC POLYMERS AND AS A STABILIZER THEREFOR NOT MORE THAN 50% BY WEIGHT OF A SECOND POLYMER OF MOLECULAR WEIGHT OF AT LEAST 10,000 SELECTED FROM THE GROUP CONSISTING OF HOMOPOLYMERS OF VINYL AND ALLYL SALICYLATE AND COPOLYMERS OF THESE MONOMERS WITH MONOETHYLENICALLY UNSATURATED MONOMERS, SAID SECOND POLYMER BEING PRESENT IN AMOUNTS SUCH THAT FROM 0.5 TO 25% BY WEIGHT OF THE COMPOSITE IS SALICYLATE UNITS.
Claim 2
Dependent Claim
128 words
A COMPOSITE RESISTANT TO LIGHT RADIATIONS IN THE WAVE LENGTH RANGE OF ABOUT 2300 TO 3600 A., CONTAINING AN ORGANIC POLYMER SUBJECT TO DETERIORATION ON EXPOSURE TO LIGHT AND CONTAINING CARBON AND HYDROGEN WITH ANY ADDITIONAL ELEMENTS SELECTED FROM THE CLASS CONSISTING OF CHLORINE, OXYGEN AND SULFUR, SAID POLYMER BEING SELECTED FROM THE GROUP CONSISTING OF POLYMERS OF VINYLIDENE MONOMERS, POLYESTERS AND CELLULOSIC POLYMERS AND AS A STABILIZER THEREFOR NOT MORE THAN 50% BY WEIGHT OF A SECOND POLYMER OF MOLECULAR WEIGHT OF AT LEAST 10,000 SELECTED FROM THE GROUP CONSISTING OF HOMOPOLYMERS OF VINYL AND ALLYL SALICYLATE AND COPOLYMERS OF THESE MONOMERS WITH MONOETHYLENICALLY UNSATURATED MONOMERS, SAID SECOND POLYMER BEING PRESENT IN AMOUNTS SUCH THAT FROM 0.5 TO 25% BY WEIGHT OF THE COMPOSITE IS SALICYLATE UNITS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-20 | 1962-10-20 | 1963-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-20 | 1966-10-20 | 1967-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-20 | 1970-10-20 | 1971-04-21 | $7700.00 | Window Closed / Lapsed |