EP0486749A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Triarylmethane compounds and pressure sensitive recording material
Assignee: Hodogaya Chemical Co Ltd
•
Filing: 1991-04-11
•
Granted: —
•
Expires: 2011-04-11
Abstract
Abstract A triarylmethane compound of the following formula (I): wherein each of R¹, R², R³, R⁴, R⁵ and R⁶ independently represents a C₁₋₈ alkyl group, a cycloalkyl group, an alkoxyalkyl group, or a benzyl or phenyl group which may be substituted by a halogen atom, an alkyl group or an alkoxy group, each of R⁷, R⁸ and R⁹ independently represents a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, or an alkoxyalkyl group, and R¹⁰ represents a C₁₋₈ alkyl group, an alkoxyalkyl group, a cycloalkyl group, or a benzyl or phenyl group which may be substituted by a halogen atom, an alkyl group, an alkoxy group or an alkoxyalkyl group.
Inventors
- 👤 Kazuyuki Hodogaya Chem.Co.Ltd. Wakasugi
- 👤 Katsumasa Hodogaya Chem.Co.Ltd. Kikkawa
- 👤 Kazuo Hodogaya Chem.Co.Ltd. Kaneko
- 👤 Masahiko Hodogaya Chem.Co.Ltd. Yamaguchi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 10:07
CPC Classifications
C; C07; C07C; C07C211/00; C07C211/43; C07C211/54; C07C229/00; C07C229/52; C07C229/54; C07C229/60; B; B41; B41M; B41M5/00; B41M5/124; B41M5/132; B41M5/136; B41M5/1366; C09; C09B; C09B11/00; C09B11/04; C09B11/10; C09B11/12
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
112 words
A triarylmethane compound of the following formula (I): wherein each of R¹, R², R³, R⁴, R⁵ and R⁶ independently represents a C₁₋₈ alkyl group, a cycloalkyl group, an alkoxyalkyl group, or a benzyl or phenyl group which may be substituted by a halogen atom, an alkyl group or an alkoxy group, each of R⁷, R⁸ and R⁹ independently represents a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, or an alkoxyalkyl group, and R¹⁰ represents a C₁₋₈ alkyl group, an alkoxyalkyl group, a cycloalkyl group, or a benzyl or phenyl group which may be substituted by a halogen atom, an alkyl group, an alkoxy group or an alkoxyalkyl group.
Claim 2
Dependent Claim
9 words
The compound according to Claim 1, which is bis((4-dimethylamino)phenyl)-2-methoxycarbonyl-4-dimethylaminophenyl)methane.
Claim 3
Dependent Claim
9 words
The compound according to Claim 1, which is bis((4-dimethylamino)phenyl)-(2-isopropoxycarbonyl-4-dimethylaminophenyl)methane.
Claim 4
Dependent Claim
9 words
The compound according to Claim 1, which is bis((4-dimethylamino)phenyl)-(2-n-butoxycarbonyl-4-dimethylaminophenyl)methane.
Claim 5
Dependent Claim
9 words
The compound according to Claim 1, which is bis((2-methyl-4-dimethylamino)phenyl)-(2-methyoxycarbonyl-4-dimethylaminophenyl)methane.
Claim 6
Dependent Claim
9 words
The compound according to Claim 1, which is bis((2-methyl-4-dimethylamino)phenyl)-(2-ethyoxycarbonyl-4-dimethylaminophenyl)methane.
Claim 7
Dependent Claim
127 words
A pressure sensitive recording material comprising at least one member selected from the group consisting of triarylmethane compounds of the following formula (I) wherein each of R¹, R², R³, R⁴, R⁵ and R⁶ independently represents a C₁₋₈ alkyl group, a cycloalkyl group, an alkoxyalkyl group, or a benzyl or phenyl group which may be substituted by a halogen atom, an alkyl group or an alkoxy group, each of R⁷, R⁸ and R⁹ independently represents a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, or an alkoxyalkyl group, and R¹⁰ represents a C₁₋₈ alkyl group, an alkoxyalkyl group, a cycloalkyl group, or a benzyl or phenyl group which may be substituted by a halogen atom, an alkyl group, an alkoxy group or an alkoxyalkyl group.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.