Patent US4698177A successfully refreshed from Google Patents.
US4698177A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cyclohexylcyclohexene derivatives
Assignee: DIC Corp
•
Filing: 1986-04-11
•
Granted: 1987-10-06
•
Expires: 2006-04-11
Abstract
Abstract A compound represented by the general formula <IMAGE> wherein R denotes a linear alkyl group having 1 to 9 carbon atoms, A denotes <IMAGE> denotes a linear alkyl group having 1 to 9 carbon atoms, and each cyclohexane ring is arranged in a trans-(equatorial-equatorial) form.
Inventors
- 👤 Yasuyuki Tanaka
- 👤 Haruyoshi Takatsu
- 👤 Kiyohumi Takeuchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:00
CPC Classifications
C; C07; C07C; C07C13/00; C07C13/28; C09; C09K; C09K19/00; C09K19/04; C09K19/06; C09K19/08; C09K19/30; C09K19/3098
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
65 words
A nematic liquid crystalline composition for electro-optical display materials comprising a mixture of matrix liquid crystals and at least one viscosity-reducing agent represented by the formula ##STR36## wherein R denotes a linear alkyl group having 1 to 9 carbon atoms, A denotes ##STR37## R' denotes a linear alkyl group having 1 to 9 carbon atoms and each cyclohexane ring is arranged in a trans(equatorial-equatorial) form.
Claim 2
Dependent Claim
65 words
A nematic liquid crystalline composition for electro-optical display materials comprising a mixture of matrix liquid crystals and at least one viscosity-reducing agent represented by the formula ##STR36## wherein R denotes a linear alkyl group having 1 to 9 carbon atoms, A denotes ##STR37## R' denotes a linear alkyl group having 1 to 9 carbon atoms and each cyclohexane ring is arranged in a trans(equatorial-equatorial) form.
Claim 3
Dependent Claim
11 words
The composition of claim 1 wherein the viscosity-reducing agent is ##STR38##
Claim 4
Dependent Claim
11 words
The composition of claim 1 wherein the viscosity-reducing agent is ##STR39##
Claim 5
Dependent Claim
11 words
The composition of claim 1 wherein the viscosity-reducing agent is ##STR40##
Claim 6
Dependent Claim
11 words
The composition of claim 1 wherein the viscosity-reducing agent is ##STR41##
Claim 7
Dependent Claim
11 words
The composition of claim 1 wherein the viscosity-reducing agent is ##STR42##
Claim 8
Dependent Claim
11 words
The composition of claim 1 wherein the viscosity-reducing agent is ##STR43##
Claim 9
Dependent Claim
66 words
The composition of claim 1 wherein the matrix liquid crystals are at least two nematic liquid crystalline compounds selected from the group consisting of 4'-substituted phenyl 4-substituted benzoated, 4'-substituted phenyl 4-substituted cyclohexanecarboxylates, 4'-substituted biphenyl 4-substituted cyclohexanecarboxylates, 4'-substituted phenyl 4-(4-substituted cyclohexanecarbonyloxy)-benzoates, 4'-substituted phenyl 4-(4-substituted cyclohexyl) benzoates, 4'-substituted cyclohexyl 4-(4-substituted cyclohexyl) benzotes, 4,4'-substituted biphenyl, 4-substituted phenyl 4'-substituted cyclohexane, 4,4"-substituted terphenyl, 4-substituted biphenyl 4"-substituted cyclohexane and 2-(4-substituted phenyl)-5-substituted pyrimidine.
References Cited (Backward Citations)
US4211666A
Cited
US4386007A
Cited
US4505837A
Cited
GB2078727A
Cited
JPS574927A
Cited
JPS5711935A
Cited
US4422951A
Cited
US4510069A
Cited
JPS59110641A
Cited
JPS6064935A
Cited
DE3321373A1
Cited
US4622164A
Cited
US4594465A
Cited
JPS6069059A
Cited
DE3510434A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-10-05 | 1991-04-06 | 1991-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-10-05 | 1995-04-06 | 1995-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-10-05 | 1999-04-06 | 1999-10-06 | $7700.00 | Window Closed / Lapsed |