Patent US4900807A successfully refreshed from Google Patents.
US4900807A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymer from nitrile terminated compounds having Schiff bonds and process for preparing the same
Assignee: Hitachi Ltd
•
Filing: 1988-02-02
•
Granted: 1990-02-13
•
Expires: 2008-02-02
Abstract
Abstract There are disclosed a nitrile-terminated Schiff compound represented by the formula X--Z--Y--C.tbd.N) m (I) wherein n is 1 or 2, Z is --CH═N-- or --N═CH-- and Y is a divalent organic group such as phenylene and the like, and X is the same as Y when n=2 or H, lower alkyl group etc. when n=1; polymers obtained by polymerizing said Schiff compound alone or together with other monomers, and a process for preparing such a polymer therefrom.
Inventors
- 👤 Akio Nishikawa
- 👤 Toru Koyama
- 👤 Hideki Asano
- 👤 Toshikazu Narahara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:00
CPC Classifications
C; C07; C07C; C07C255/00; C07C255/61; C08; C08G; C08G73/00; C08G73/06; C08G73/0622; C08G73/0638; C08G73/065
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
260 words
A polymer obtained by polymerizing a nitrile-terminated Schiff compound monomer by heating said monomer to a temperature sufficient to cause polymerization but below the temperature at which an exothermic reaction occurs, said monomer represented by the formula: X--(Z--Y--C.tbd.N).sub.n wherein n is a number of 1 or 2; Z represents --CH═N-- or --N═CH--; when n is 1, X represents a member of the group consisting of a C 1 -C 8 alkyl group, a substituted or unsubstituted phenyl group, a substituted or unsubstituted naphthyl group, or a C 3 -C 6 cycloalkyl group; Y represents a member of the group consisting of a straight or branched alkylene group having 2 to 12 carbon atoms, a substituted or unsubstituted phenylene group, a substituted or unsubstituted naphthylene group, a substituted or unsubstituted biphenylene group, a substituted or unsubstituted anthracene group, a substituted or unsubstituted phenathrene group, a substituted or unsubstituted pyrene group, or a divalent organic group represented by the formula ##STR37## wherein Q represents O, S, SO 2 , --(CH 2 )m--, CO, --(CF 2 ) m --, ##STR38## m represents a number of 1 to 12, and R 1 and R 2 are the same or different from one another and represent a member of the group consisting of H, CH 3 , C 2 H 5 , CF 3 , ##STR39## and when n is 2, X represents one of the divalent organic groups specified above wherein X and Y are the same or different from one another and a first Y the same or different from a second Y.
Claim 2
Dependent Claim
260 words
A polymer obtained by polymerizing a nitrile-terminated Schiff compound monomer by heating said monomer to a temperature sufficient to cause polymerization but below the temperature at which an exothermic reaction occurs, said monomer represented by the formula: X--(Z--Y--C.tbd.N).sub.n wherein n is a number of 1 or 2; Z represents --CH═N-- or --N═CH--; when n is 1, X represents a member of the group consisting of a C 1 -C 8 alkyl group, a substituted or unsubstituted phenyl group, a substituted or unsubstituted naphthyl group, or a C 3 -C 6 cycloalkyl group; Y represents a member of the group consisting of a straight or branched alkylene group having 2 to 12 carbon atoms, a substituted or unsubstituted phenylene group, a substituted or unsubstituted naphthylene group, a substituted or unsubstituted biphenylene group, a substituted or unsubstituted anthracene group, a substituted or unsubstituted phenathrene group, a substituted or unsubstituted pyrene group, or a divalent organic group represented by the formula ##STR37## wherein Q represents O, S, SO 2 , --(CH 2 )m--, CO, --(CF 2 ) m --, ##STR38## m represents a number of 1 to 12, and R 1 and R 2 are the same or different from one another and represent a member of the group consisting of H, CH 3 , C 2 H 5 , CF 3 , ##STR39## and when n is 2, X represents one of the divalent organic groups specified above wherein X and Y are the same or different from one another and a first Y the same or different from a second Y.
Claim 3
Dependent Claim
13 words
The polymer of claim 1 wherein said polymer has a cross-ladder skeleton structure.
Claim 4
Dependent Claim
29 words
The polymer of claim 1 further including a substituent selected from the group consisting of F, Cl, Br, CH 3 , CF 3 , OH, NH 2 , ##STR40##
Claim 5
Dependent Claim
88 words
The polymer of claim 1 wherein n represents 2 and X represents a member of the group consisting of ##STR41## and --(CH 2 ) m' --, wherein m' represents a number of 1 to 8, and Q represents a member of the group consisting of O, CO, S, SO 2 and ##STR42## with R 1 and R 2 being the same or different from each other and representing a member of the group consisting of H, CH 3 , C 2 H 5 , CF 3 , ##STR43##
Claim 6
Dependent Claim
54 words
The polymer of claim 1 wherein n represents 1 and X represents a member selected from the group consisting of a C 1 -C 8 alkyl group, ##STR44## wherein R 3 is a member of the group consisting of H, F, Cl, Br, CH 3 , CF 3 , OH, NH 2 , ##STR45##
Claim 7
Dependent Claim
21 words
The polymer of claim 1 wherein said nitrile-terminated Schiff compound monomer is polymerized in the presence of an ethylenic polymerizable compound.
Claim 8
Dependent Claim
22 words
The polymer of claim 1 wherein said nitrile-terminated Schiff compound monomer is polymerized in the presence of an N, N'-substituted bismaleimide compound.
Claim 9
Dependent Claim
184 words
A polymer obtained by polymerizing a monomer of a nitrile-terminated Schiff compound represented by the formula X--(Z--Y--C.tbd.N).sub.2 wherein Z represents --CH═N-- or --N═CH--; Y represents a straight or branched alkylene group having 1 to 12 carbon atoms, a substituted or unsubstituted phenylene group, a substituted or unsubstituted naphthylene group, a substituted or unsubstituted biphenylene group, a substituted or unsubstituted anthracene group, a substituted or unsubstituted phenanthrene group, a substituted or unsubstituted pyrene group or a divalent organic group represented by the formula ##STR46## wherein Q represents O, S, SO 2 , --CH 2 ) m --, CO, --(CF 2 ) m --, ##STR47## m represents a number of 1 to 12, and R 1 and R 2 are the same or different from one another and represent a member selected from the group consisting of H, CH 3 , C 2 H 5 , CF 3 , ##STR48## and X represents one of the divalent organic groups specified above wherein X and Y are the same or different from one another and a first Y is the same or different from a second Y.
Claim 10
Dependent Claim
184 words
A polymer obtained by polymerizing a monomer of a nitrile-terminated Schiff compound represented by the formula X--(Z--Y--C.tbd.N).sub.2 wherein Z represents --CH═N-- or --N═CH--; Y represents a straight or branched alkylene group having 1 to 12 carbon atoms, a substituted or unsubstituted phenylene group, a substituted or unsubstituted naphthylene group, a substituted or unsubstituted biphenylene group, a substituted or unsubstituted anthracene group, a substituted or unsubstituted phenanthrene group, a substituted or unsubstituted pyrene group or a divalent organic group represented by the formula ##STR46## wherein Q represents O, S, SO 2 , --CH 2 ) m --, CO, --(CF 2 ) m --, ##STR47## m represents a number of 1 to 12, and R 1 and R 2 are the same or different from one another and represent a member selected from the group consisting of H, CH 3 , C 2 H 5 , CF 3 , ##STR48## and X represents one of the divalent organic groups specified above wherein X and Y are the same or different from one another and a first Y is the same or different from a second Y.
Claim 11
Dependent Claim
13 words
The polymer of claim 8 wherein said polymer has a cross-ladder skeleton structure.
Claim 12
Dependent Claim
31 words
The polymer of claim 8 wherein said polymer includes a substituent selected from the group consisting of F, Cl, Br, CH 3 , CF 3 , OH, NH 2 , ##STR49##
Claim 13
Dependent Claim
78 words
The polymer of claim 8 wherein X represents a member of the group consisting of ##STR50## wherein m' represents a number of 1 to 8, and Q represents a member of the group consisting of O, CO, S, SO 2 and ##STR51## with R 1 and R 2 being the same or different from each other and representing a member of the group consisting of H, CH 3 , C 2 H 5 , CF 3 , ##STR52##
Claim 14
Dependent Claim
199 words
A process for producing a polymer, the process comprising: providing a nitrile-terminated Schiff compound monomer represented by the formula X--(Z--Y--C.tbd.N).sub.2 wherein Z represents --CH═N-- or --N═CH--; Y represents a straight or branched alkylene group having 1 to 12 carbon atoms, a substituted or unsubstituted phenylene group, a substituted or unsubstituted naphthylene group, a substituted or unsubstituted biphenylene group, a substituted or unsubstituted anthracene group, a substituted phenanthrene group, a substituted or unsubstituted pyrene group or a divalent organic group consisting of ##STR53## wherein Q represents O, S, SO 2 , --(CH 2 ) m --, CO, --CF 2 ) m --, ##STR54## m represents a number of 1 to 12, and R 1 and R 2 are the same or different from one another and represent a member selected from the group consisting of H, CH 3 , C 2 H 5 , CF 3 , ##STR55## and X represents one of the divalent organic groups specified above wherein X and Y are the same or different from one another and a first Y is the same or different from a second Y; applying heat energy to the nitrile-terminated Schiff compound at a temperature sufficient to polymerize the same.
Claim 15
Dependent Claim
199 words
A process for producing a polymer, the process comprising: providing a nitrile-terminated Schiff compound monomer represented by the formula X--(Z--Y--C.tbd.N).sub.2 wherein Z represents --CH═N-- or --N═CH--; Y represents a straight or branched alkylene group having 1 to 12 carbon atoms, a substituted or unsubstituted phenylene group, a substituted or unsubstituted naphthylene group, a substituted or unsubstituted biphenylene group, a substituted or unsubstituted anthracene group, a substituted phenanthrene group, a substituted or unsubstituted pyrene group or a divalent organic group consisting of ##STR53## wherein Q represents O, S, SO 2 , --(CH 2 ) m --, CO, --CF 2 ) m --, ##STR54## m represents a number of 1 to 12, and R 1 and R 2 are the same or different from one another and represent a member selected from the group consisting of H, CH 3 , C 2 H 5 , CF 3 , ##STR55## and X represents one of the divalent organic groups specified above wherein X and Y are the same or different from one another and a first Y is the same or different from a second Y; applying heat energy to the nitrile-terminated Schiff compound at a temperature sufficient to polymerize the same.
Claim 16
Dependent Claim
21 words
The process of claim 12 wherein the step of applying heat energy is replaced by a step of applying light energy.
Claim 17
Dependent Claim
30 words
The process of claim 12 wherein the step of applying heat energy to the nitrile-terminated Schiff compound calls for heating the monomer up to a temperature of about 180° C.
Claim 18
Dependent Claim
20 words
The process of claim 14 wherein the monomer is heated to a temperature between about 120° C. and 180° C.
Claim 19
Dependent Claim
20 words
The process of claim 12 wherein the polymer that is obtained includes a dihydrotriazine ring formed within its structural unit.
Claim 20
Dependent Claim
15 words
The process of claim 12 wherein the polymer that is obtained includes a cross-ladder skeleton.
Claim 21
Dependent Claim
20 words
The process of claim 12 further comprising the step of adding a cross-linking agent to the nitrile-terminated Schiff compound monomer.
Claim 22
Dependent Claim
14 words
The process of claim 18 wherein the cross-linking agent is an ethylenic polymerizable compound.
Claim 23
Dependent Claim
22 words
The process of claim 12 further comprising the step of adding an N, N'-substituted bismaleimide compound to the nitrile-terminated Schiff compound monomer.
Claim 24
Dependent Claim
268 words
A process for producing a polymer, the process comprising: providing a nitrile terminated Schiff compound monomer represented by the formula X--(Z--Y--C.tbd.N).sub.n wherein n is a number of 1 or 2; Z represents a --CH═N-- or --N═CH--; when n is 1, X represents a member of the group consisting of a C 1 -C 8 alkyl group, a substituted or unsubstituted phenyl group, a substituted or unsubstituted naphthyl group, or a C 3 -C 6 cycloalkyl group; and Y represents a member of the group consisting of a straight or branched alkylene group having 2 to 12 carbon atoms, a substituted or unsubstituted phenylene group, a substituted or unsubstituted naphthylene group, a substituted or unsubstituted biphenylene group, a substituted or unsubstituted anthracene group, a substituted or unsubstituted phenathrene group, a substituted or unsubstituted pyrene group, or a divalent organic group represented by the formula ##STR56## wherein Q represents O, S, SO 2 , --(CH 2 ) m --, CO, --(CF 2 ) m --, ##STR57## m represents a number of 1 to 12, and R 1 and R 2 are the same or different from one another and represent a member of the group consisting of H, CH 3 , C 2 H 5 , CF 3 , ##STR58## and when n is 2, X represents one of the divalent organic groups specified above wherein X and Y are the same or different from one another and a first Y is the same or different from a second Y; giving heat energy to the monomer at a temperature between about 120° C. and 180° C. to polymerize the monomer.
Claim 25
Dependent Claim
268 words
A process for producing a polymer, the process comprising: providing a nitrile terminated Schiff compound monomer represented by the formula X--(Z--Y--C.tbd.N).sub.n wherein n is a number of 1 or 2; Z represents a --CH═N-- or --N═CH--; when n is 1, X represents a member of the group consisting of a C 1 -C 8 alkyl group, a substituted or unsubstituted phenyl group, a substituted or unsubstituted naphthyl group, or a C 3 -C 6 cycloalkyl group; and Y represents a member of the group consisting of a straight or branched alkylene group having 2 to 12 carbon atoms, a substituted or unsubstituted phenylene group, a substituted or unsubstituted naphthylene group, a substituted or unsubstituted biphenylene group, a substituted or unsubstituted anthracene group, a substituted or unsubstituted phenathrene group, a substituted or unsubstituted pyrene group, or a divalent organic group represented by the formula ##STR56## wherein Q represents O, S, SO 2 , --(CH 2 ) m --, CO, --(CF 2 ) m --, ##STR57## m represents a number of 1 to 12, and R 1 and R 2 are the same or different from one another and represent a member of the group consisting of H, CH 3 , C 2 H 5 , CF 3 , ##STR58## and when n is 2, X represents one of the divalent organic groups specified above wherein X and Y are the same or different from one another and a first Y is the same or different from a second Y; giving heat energy to the monomer at a temperature between about 120° C. and 180° C. to polymerize the monomer.
Claim 26
Dependent Claim
20 words
The process of claim 21 further including the step of adding a cross-linking agent to the Schiff compound monomer compound.
References Cited (Backward Citations)
GB809410A
Cited
US4055543A
Cited
US3933630A
Cited
US4066609A
Cited
US4105646A
Cited
US4102873A
Cited
US4178430A
Cited
US4555565A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-02-12 | 1993-08-14 | 1994-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-02-12 | 1997-08-14 | 1998-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-02-12 | 2001-08-14 | 2002-02-13 | $7700.00 | Window Closed / Lapsed |