Patent US2959562A successfully refreshed from Google Patents.
US2959562A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixed chlorination products from low pressure polyethylene and hydrocarbons and a process for preparing said products
Assignee: Hoechst AG
•
Filing: 1956-10-15
•
Granted: 1960-11-08
•
Expires: 1976-10-15
Abstract
No abstract record available.
Inventors
- 👤 Klug Helmut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:38
CPC Classifications
F; F16; F16H; F16H37/00; F16H37/02; F16H37/06; F16H37/08; C; C08; C08F; C08F8/00; C08F8/18; C08F8/20; F16H2702/00; F16H2702/02; F16H2702/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A HALOGENATION PROCESS WHICH COMPRISES CHLORINATING A SUSPENSION OF LOW PRESSURE POLYETHYLENE IN A LIQUID MEDIUM SELECTED FROM THE GROUP CONSISTING OF PARAFFINIC HYDROCARBONS OF AT LEAST SIX CARBON ATOMS, CYCLOPARAFFINIC HYDROCARBONS OF AT LEAST SIX CARBON ATOMS, AROMATIC HYDROCARBONS OF AT LEAST SEVEN CARBON ATOMS CONTAINING ONE TO TWO AROMATIC NUCLEI, AND CHLORINATION PRODUCTS OF SAID HYDROCARBONS, SAID POLYETHYLENE HAVING A LINEAR MOLECULAR STRUCTURE AND A HIGH DEGREE OF CRYSTALLINITY, WHEREBY A CHLORINATION PRODUCT IS FORMED WHICH CONSISTS OF A MIXTURE OF CHLORINATED POLYETHYLENE AND CHLORINATED HYDROCARBON OF THE AFORESAID GROUP.
Claim 2
Dependent Claim
92 words
A HALOGENATION PROCESS WHICH COMPRISES CHLORINATING A SUSPENSION OF LOW PRESSURE POLYETHYLENE IN A LIQUID MEDIUM SELECTED FROM THE GROUP CONSISTING OF PARAFFINIC HYDROCARBONS OF AT LEAST SIX CARBON ATOMS, CYCLOPARAFFINIC HYDROCARBONS OF AT LEAST SIX CARBON ATOMS, AROMATIC HYDROCARBONS OF AT LEAST SEVEN CARBON ATOMS CONTAINING ONE TO TWO AROMATIC NUCLEI, AND CHLORINATION PRODUCTS OF SAID HYDROCARBONS, SAID POLYETHYLENE HAVING A LINEAR MOLECULAR STRUCTURE AND A HIGH DEGREE OF CRYSTALLINITY, WHEREBY A CHLORINATION PRODUCT IS FORMED WHICH CONSISTS OF A MIXTURE OF CHLORINATED POLYETHYLENE AND CHLORINATED HYDROCARBON OF THE AFORESAID GROUP.
References Cited (Backward Citations)
US2268415A
Cited
US2181158A
Cited
US2398803A
Cited
US2571901A
Cited
US2481188A
Cited
US2592763A
Cited
GB705974A
Cited
US2748105A
Cited
US2870113A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-08 | 1964-05-09 | 1964-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-08 | 1968-05-09 | 1968-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-08 | 1972-05-09 | 1972-11-08 | $7700.00 | Window Closed / Lapsed |