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US5502207A Expired / Lapsed US ⏱️ 0.0 years remaining

Alkenyl-substituted bisnadimides, process for manufacturing the same, process for curing the same, and adhesives and coating materials utilizing the same

Assignee: Maruzen Petrochemical Co Ltd
•
Filing: 1994-08-10
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Granted: 1996-03-26
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Expires: 2014-08-10
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Abstract

Abstract An alkenyl-substituted bisnadimide represented by the following formula [1]: <IMAGE> [1] [wherein R1 and R2 individually represent a hydrogen atom or a methyl group, and E is an alkylene.phenylene group or an alkylene.phenylene.alkylene group represented by the following formula [2]: <IMAGE> [2] (wherein a is an integer of 0 or 1, and R3'individually represent a C1-C4 alkylene group or a C5-C8 cycloalkylene group)], a process for the preparation of the same and a process for curing the same are disclosed. Further, an adhesive material and a coating material containing the bisnadimide as a curing component are also disclosed. A cured material obtaind from the bisnadimide has excellent heat resistance, mechanical strength, toughness, adhesion property to many kinds of substrates, and so on. The adhesive material shows excellent heat resistance and the coating material shows excellent boiling water resistance.

Inventors

  • 👤 Norio Futaesaku
  • 👤 Hideo Fukuda
  • 👤 Yoshiharu Itou
  • 👤 Hiromitsu Baba
  • 👤 Isao Maruyama

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 07:37
CPC Classifications
C; C08; C08F; C08F226/00; C08F226/06; C07; C07D; C07D209/00; C07D209/56; C07D209/58; C07D209/72; C07D209/76; C08F22/00; C08F22/36; C08F22/40; C09; C09D; C09D4/00

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 74 words
An alkenyl-substituted bisnadimide represented by the following formula (1): ##STR13## wherein R 1 and R 2 individually represent a hydrogen atom or a methyl group, and E is an alkylene.phenylene group or an alkylene.phenylene.alkylene group represented by the following formula (2): ##STR14## (wherein a is an integer of 0 or 1, and R 3 and R 3' individually represent a C 1 -C 4 alkylene group or a C 5 -C 8 cycloalkylene group).
Claim 2
Dependent Claim 74 words
An alkenyl-substituted bisnadimide represented by the following formula (1): ##STR13## wherein R 1 and R 2 individually represent a hydrogen atom or a methyl group, and E is an alkylene.phenylene group or an alkylene.phenylene.alkylene group represented by the following formula (2): ##STR14## (wherein a is an integer of 0 or 1, and R 3 and R 3' individually represent a C 1 -C 4 alkylene group or a C 5 -C 8 cycloalkylene group).
Claim 3
Dependent Claim 21 words
The alkenyl-substituted bisnadimide according to claim 1, wherein R 1 and R 2 in formula (1) are a hydrogen atom, respectively.
Claim 4
Dependent Claim 29 words
The alkenyl-substituted bisnadimide according to claim 1, wherein E in formula (1) is selected from the group consisting of a phenylene.methylene group, a phenylene.ethylene group and a xylylene group.
Claim 5
Dependent Claim 43 words
The alkenyl-substituted bisnadimide according to claim 1, wherein R 1 and R 2 in formula (1) are a hydrogen atom, respectively, and E in formula (1) is selected from the group consisting of a phenylene.methylene group, a phenylene.ethylene group and a xylylene group.
Claim 6
Dependent Claim 13 words
The alkenyl-substituted bisnadimide according to claim 4, wherein E is a xylylene group.

References Cited (Backward Citations)

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US4666997A Cited
US4709047A Cited
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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1999-03-26 1999-09-25 2000-03-26 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2003-03-26 2003-09-25 2004-03-26 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2007-03-26 2007-09-25 2008-03-26 $7700.00 Window Closed / Lapsed

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