US2876185A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chlorination of polyester structure
Assignee: EIDP Inc
•
Filing: 1956-09-06
•
Granted: 1959-03-03
•
Expires: 1976-09-06
Abstract
No abstract record available.
Inventors
- 👤 Leon E Wolinski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:12
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/12; C08J7/126; B; B29; B29C; B29C59/00; B29C59/16; B29C35/00; B29C35/02; B29C35/08; B29C35/0805; B29C2035/0827; B29K; B29K2067/00; B29K2995/00; B29K2995/0037; B29K2995/005; B29L; B29L2007/00; B29L2007/008; C08J2367/00; C08J2367/02; Y; Y10; Y10S; Y10S8/00; Y10S8/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
THE PROCESS OF TREATING FILM OF SYNTHETIC LINER POLYESTERS OF A GLYCOL OF THE SERIES HO(CH2)NOH WHERIN N IS A WHOLE NUMBER WHERIN THE RANGE OF 2-10 INCLUSIVE AND ACIDS SELECTED FROM THE GROUPE CONSISTING OF (1) TEREPHTHALIC ACID AND (2) A MIXTURE OF TEREPHTHALIC ACID WITH UP TO 20% BY WEIGHT BASED ON THE TOTAL WEIGHT OF ACIDS, OF A SECOND ACID SELECTED FROM THE GROUP CONSISTING OF ISOPHTHALIC ACID, DIBENZOIC ACID, HYDAHYDROTEREPHTHALIC ACID SEBACIC ACID, AZELAIC ACID, NAPHTHALIC ACIS, 2.5-DIMETHYL TEREPHTHALIC ACID AND BISP-CARBOXYHENOXY ETHANE, WHICH COMPRISE SUBJECTING THE SURFACE OF SAID FILM TO THE ACTION OF A GASEOUS ATMOSPHERE CONSISTING ESSENTIALLY OF CHLORINE AS THE SOLE REACTIVE INGREDIENT, IN THE PRESENCE OF ULTRA-VIOLET LIGHT HAVING WAVE-LENGTH OF 2500 TO 3200 A. UNDER CONDICTIONS OF TIME AND TEMPERATURE SUCH THAT THE CHLORINE CONTENT OF THE SURFACE OF THE TREATED FILM DOES NOT EXCEED THE PERCENT BY WEIGHT OF CHLORINE, BASED ON THE WEIGHT OF THE TREATED FILM, DEFINED THE EQUATION.
Claim 2
Dependent Claim
162 words
THE PROCESS OF TREATING FILM OF SYNTHETIC LINER POLYESTERS OF A GLYCOL OF THE SERIES HO(CH2)NOH WHERIN N IS A WHOLE NUMBER WHERIN THE RANGE OF 2-10 INCLUSIVE AND ACIDS SELECTED FROM THE GROUPE CONSISTING OF (1) TEREPHTHALIC ACID AND (2) A MIXTURE OF TEREPHTHALIC ACID WITH UP TO 20% BY WEIGHT BASED ON THE TOTAL WEIGHT OF ACIDS, OF A SECOND ACID SELECTED FROM THE GROUP CONSISTING OF ISOPHTHALIC ACID, DIBENZOIC ACID, HYDAHYDROTEREPHTHALIC ACID SEBACIC ACID, AZELAIC ACID, NAPHTHALIC ACIS, 2.5-DIMETHYL TEREPHTHALIC ACID AND BISP-CARBOXYHENOXY ETHANE, WHICH COMPRISE SUBJECTING THE SURFACE OF SAID FILM TO THE ACTION OF A GASEOUS ATMOSPHERE CONSISTING ESSENTIALLY OF CHLORINE AS THE SOLE REACTIVE INGREDIENT, IN THE PRESENCE OF ULTRA-VIOLET LIGHT HAVING WAVE-LENGTH OF 2500 TO 3200 A. UNDER CONDICTIONS OF TIME AND TEMPERATURE SUCH THAT THE CHLORINE CONTENT OF THE SURFACE OF THE TREATED FILM DOES NOT EXCEED THE PERCENT BY WEIGHT OF CHLORINE, BASED ON THE WEIGHT OF THE TREATED FILM, DEFINED THE EQUATION.
References Cited (Backward Citations)
US2715075A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-02 | 1962-09-01 | 1963-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-02 | 1966-09-01 | 1967-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-02 | 1970-09-01 | 1971-03-03 | $7700.00 | Window Closed / Lapsed |