US3177153A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Macromolecular substances optically brightened with 1, 4-bis-styryl-benzenes
Assignee: BASF SE
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Filing: 1962-01-18
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Granted: 1965-04-06
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Expires: 1982-01-18
Abstract
No abstract record available.
Inventors
- 👤 Pommer Horst
- 👤 Siebel Hans Peter
- 👤 Schwen Roland
- 👤 Stilz Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:23
CPC Classifications
C; C07; C07C; C07C1/00; C07C1/32; C07C1/34; C07C15/00; C07C15/40; C07C15/50; C07C15/52; C07C17/00; C07C17/26; C07C17/263; C07C17/2635; C07C25/00; C07C25/24; C07D; C07D209/00; C07D209/56; C07D209/80; C07D209/82; C07D209/86; C07D317/00; C07D317/08; C07D317/44; C07D317/46; C07D317/48; C07D317/50; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/54; C07F9/5456; C08; C08K; C08K5/00; C08K5/0008; C08K5/0041; C09; C09B; C09B23/00; C09B23/14; C09B23/141; D; D01; D01F; D01F1/00; D01F1/02; D01F1/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
AN OPTICALLY BRIGHTENED SYNTHETIC SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF MACROMOLECULAR POLYMERIZATION PRODUCTS OF POLYMERIZABLE UNSATURATED COMPOUNDS, MACROMOLECULAR LINEAR POLYESTERS AND MIXTURES OF SAID MACROMOLECULAR SUBSTANCES IN WHICH THERE IS HOMOGENEOUSLY DISTRIBUTED AS A BRIGHTENING AGENT, IN AN AMOUNT SUFFICIENT OT OPTICALLY BRIGHTEN SAID SUBSTANCE, THE COMPOUND 1,4-BIS-STYRYL-BENZENE IN WHICH FROM ONE TO TWO OF THE POSITIONS 2'', 3'', 4'', AND 5'' OF AT LEAST ONE OF THE TWO PHENYL NUCELI CORRESPONDING TO THE STYRYL MOIETY BEAR A RADICAL SELECTED FROM THE GROUP CONSISTING OF LOWER ALKYL, PHENYL, HYDROXY, LOWER ALKOXY, LOWER ACLOXY, CHLORINE, BROMINE AND DIOXYMETHYLENE.
Claim 2
Dependent Claim
98 words
AN OPTICALLY BRIGHTENED SYNTHETIC SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF MACROMOLECULAR POLYMERIZATION PRODUCTS OF POLYMERIZABLE UNSATURATED COMPOUNDS, MACROMOLECULAR LINEAR POLYESTERS AND MIXTURES OF SAID MACROMOLECULAR SUBSTANCES IN WHICH THERE IS HOMOGENEOUSLY DISTRIBUTED AS A BRIGHTENING AGENT, IN AN AMOUNT SUFFICIENT OT OPTICALLY BRIGHTEN SAID SUBSTANCE, THE COMPOUND 1,4-BIS-STYRYL-BENZENE IN WHICH FROM ONE TO TWO OF THE POSITIONS 2'', 3'', 4'', AND 5'' OF AT LEAST ONE OF THE TWO PHENYL NUCELI CORRESPONDING TO THE STYRYL MOIETY BEAR A RADICAL SELECTED FROM THE GROUP CONSISTING OF LOWER ALKYL, PHENYL, HYDROXY, LOWER ALKOXY, LOWER ACLOXY, CHLORINE, BROMINE AND DIOXYMETHYLENE.
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) | 1968-04-05 | 1968-10-05 | 1969-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-05 | 1972-10-05 | 1973-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-05 | 1976-10-05 | 1977-04-06 | $7700.00 | Window Closed / Lapsed |