US4975522A
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Crosslinkable compounds and method for making
Assignee: Berlin-Brandenburg Academy of Sciences and Humanities
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Filing: 1989-05-25
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Granted: 1990-12-04
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Expires: 2009-05-25
Abstract
Abstract The invention relates to linear, thermotropic crosslinkable polymers, which comprises (A) polycondensing a complex dicarboxylic dichloride having the formula ##STR1## wherein Ar 1 is ##STR2## Ar 2 is ##STR3## Y is H, F, Cl, CN, phenyl, C n H 2n+1 , or OC n H 2n+1 , q is a cardinal number between 1 and 2, and n is a cardinal number between 1 and 4; provided that when X 1 =OCO, then X 2 =COO, when X 1 =COO, then X 2 =OCO, when X 1 =NHCO then X 2 =COHN, and when X 1 =CONH then X 2 =NHCO; (B) with an unsaturated dihydroxy oligomeric compound of the formula (III) ##STR4## present as an oligomer, where R 1 is a linear, aliphatic, saturated, C 2-12 moiety, or a C 4-10 oxyaliphatic moiety; R 2 is H or CH 3 moiety; and m is a cardinal number between 1 and 4; at a mole ratio of from about 1:5 to about 5:1, at a temperature of from about 140° C. to about 240° C., for a time period from about 0.5 to about 4 hours, under inert gas atmosphere, and crosslinking the polyester reaction product at a temperature from about 140° C. to about 180° C. with a crosslinking agent known per se and being present in a molar ratio of from about 1:20 to about 20:1 per mole double bond in the polymer.
Inventors
- 👤 Manfred Ratzsch
- 👤 Karin Grasshoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:30
CPC Classifications
C; C09; C09K; C09K19/00; C09K19/04; C09K19/38; C09K19/3804; C09K19/3809; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/52; C08G63/54; C08G63/66; C08G63/668; C08G63/676; C08G63/68; C08G63/685; C08G63/6854; C08G63/6858; C08G69/00; C08G69/44
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
235 words
A process for producing regular, linear, thermotropic crosslinkable polymers, which comprises (A) polycondensing a complex dicarboxylic dichloride having the formula ##STR39## whereinAr 1 is ##STR40## Ar 2 is ##STR41## Y is H, F, Cl, CN, phenyl, C n H 2n+1 , or OC n H 2n+1 , q is a cardinal number between 1 and 5, and n is a cardinal number between 1 and 4; provided that when X 1 =OCO, then X 2 =COO, when X 1 =COO, then X 2 =OCO, when X 1 =NHCO then X 2 =CONH, and when X 1 =CONH then X 2 =NHCO; (B) with an unsaturated dihydroxy oligomeric compound of the formula (III) ##STR42## present as an oligomer, where R 1 is a linear, aliphatic, saturated C 2-12 moiety, or a C 4-10 oxyaliphatic moiety; R 2 is a H or CH 3 moiety; and m is a cardinal number between 1 and 4; at a mole ratio of from about 1:5 to about 5:1, at a temperature of from about 140° C. to about 240° C., for a time period from about 0.5 to 4 hours, under inert gas atmosphere, and crosslinking the polyester reaction product at a temperature from about 140° C. to about 180° C. with a crosslinking agent known per se and being present in a molar ratio of from about 1:20 to about 20:1 per mole double bond in the polymer.
Claim 2
Dependent Claim
235 words
A process for producing regular, linear, thermotropic crosslinkable polymers, which comprises (A) polycondensing a complex dicarboxylic dichloride having the formula ##STR39## whereinAr 1 is ##STR40## Ar 2 is ##STR41## Y is H, F, Cl, CN, phenyl, C n H 2n+1 , or OC n H 2n+1 , q is a cardinal number between 1 and 5, and n is a cardinal number between 1 and 4; provided that when X 1 =OCO, then X 2 =COO, when X 1 =COO, then X 2 =OCO, when X 1 =NHCO then X 2 =CONH, and when X 1 =CONH then X 2 =NHCO; (B) with an unsaturated dihydroxy oligomeric compound of the formula (III) ##STR42## present as an oligomer, where R 1 is a linear, aliphatic, saturated C 2-12 moiety, or a C 4-10 oxyaliphatic moiety; R 2 is a H or CH 3 moiety; and m is a cardinal number between 1 and 4; at a mole ratio of from about 1:5 to about 5:1, at a temperature of from about 140° C. to about 240° C., for a time period from about 0.5 to 4 hours, under inert gas atmosphere, and crosslinking the polyester reaction product at a temperature from about 140° C. to about 180° C. with a crosslinking agent known per se and being present in a molar ratio of from about 1:20 to about 20:1 per mole double bond in the polymer.
Claim 3
Dependent Claim
140 words
A regular, linear, thermotropic crosslinkable polymer with mesogenic units and flexible spacers in the main polymer chain, having recurring units of the structure: ##STR43## wherein Ar 1 is ##STR44## Ar 2 is ##STR45## Y is H, F, Cl, CN, phenyl, C n H 2n+1 , OC 2n+1 , q is a cardinal number between 1 and 5, n is a cardinal number between 1 and 4; R 1 is a C 2-12 saturated aliphatic moiety, or the oxyaliphatic moiety --(--CH 2 --CHR 3 --)--) s -- wherein s is a cardinal number between 2 and 4, and R 3 is H or CH 3 , provided that when X 1 =OCO, then X 2 =COO, when X 1 =COO, then X 2 =OCO, when X 1 =NHCO then X 2 =CONH, and when X 1 =CONH then X 2 =NHCO.
Claim 4
Dependent Claim
140 words
A regular, linear, thermotropic crosslinkable polymer with mesogenic units and flexible spacers in the main polymer chain, having recurring units of the structure: ##STR43## wherein Ar 1 is ##STR44## Ar 2 is ##STR45## Y is H, F, Cl, CN, phenyl, C n H 2n+1 , OC 2n+1 , q is a cardinal number between 1 and 5, n is a cardinal number between 1 and 4; R 1 is a C 2-12 saturated aliphatic moiety, or the oxyaliphatic moiety --(--CH 2 --CHR 3 --)--) s -- wherein s is a cardinal number between 2 and 4, and R 3 is H or CH 3 , provided that when X 1 =OCO, then X 2 =COO, when X 1 =COO, then X 2 =OCO, when X 1 =NHCO then X 2 =CONH, and when X 1 =CONH then X 2 =NHCO.
Claim 5
Dependent Claim
30 words
The process of claim 1, with the proviso that when X 1 is OCO, then X 2 is COO, and when X 1 is COO, then X 2 is OCO.
Claim 6
Dependent Claim
45 words
The process of claim 1, wherein Ar 2 is ##STR46## and q is a cardinal number between 1 and 2, with the proviso that when X 1 is NHCO, then X 2 is CONH, and when X 1 is CONH, then X 2 is NHCO.
Claim 7
Dependent Claim
30 words
The polymer of claim 2, with the proviso that when X 1 is OCO, then X 2 is COO, and when X 1 is COO, then X 2 is OCO.
Claim 8
Dependent Claim
45 words
The polymer of claim 2, wherein Ar 1 is ##STR47## and q is a cardinal number between 1 and 2, with the proviso that when X 1 is NHCO, then X 2 is COHN, and when X 1 is COHN, then X 2 is NHCO.
References Cited (Backward Citations)
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