US4863763A
Expired / Lapsed
US
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Process for producing molecular orientated film
Assignee: Mitsubishi Chemical Corp
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Filing: 1988-07-08
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Granted: 1989-09-05
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Expires: 2008-07-08
Abstract
Abstract A process for producing a polydiacetylene molecular orientated film is disclosed, which comprises a first step of forming a polydiacetylene film on a base using a diacetylene monomer or a polydiacetylene, a second step of unidirectionally rubbing the polydiacetylene film with a cloth at least once, a third step of building up a diacetylene monomer on the film, and a fourth step of polymerizing the diacetylene monomer film formed in the third step in a solid phase, said second to fourth steps being carried out once or more in this order. The resulting orientated film exhibits high orientation and crystallinity without limitations in film thickness, film area, and polymer materials.
Inventors
- 👤 Kenji Takeda
- 👤 Ken Ishikawa
- 👤 Tatsuo Kanetake
- 👤 Takashi Kojima
- 👤 Akira Itsubo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:12
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/18; C08J7/00; C08J7/12; C08J7/16; C08J2349/00
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
89 words
A process for producing a polydiacetylene molecular orientated film which comprises a first step of forming a polydiacetylene film on a base using a diacetylene monomer or a polydiacetylene, a second step of unidirectionally rubbing the polydiacetylene film with a cloth at least once, a third step of building up a diacetylene monomer on the film, and a fourth step of polymerizing the diacetylene monomer film formed in the third step in a solid phase, said second to fourth steps being carried out once or more in this order.
Claim 2
Dependent Claim
89 words
A process for producing a polydiacetylene molecular orientated film which comprises a first step of forming a polydiacetylene film on a base using a diacetylene monomer or a polydiacetylene, a second step of unidirectionally rubbing the polydiacetylene film with a cloth at least once, a third step of building up a diacetylene monomer on the film, and a fourth step of polymerizing the diacetylene monomer film formed in the third step in a solid phase, said second to fourth steps being carried out once or more in this order.
Claim 3
Dependent Claim
48 words
A process as claimed in claim 1, wherein said diacetylene monomer to be used in the first and/or third step is represented by formula: R--C.tbd.C--C.tbd.C--R wherein R represents an alkyl, aryl, aryl-substituted alkyl or alkyl-substituted aryl group each containing a fluorine atom and up to 12 carbon atoms.
Claim 4
Dependent Claim
29 words
A process as claimed in claim 1, wherein said diacetylene monomer to be used in the first and/or third step is represented by formula: R--C.tbd.C--C.tbd.C--R wherein R is ##STR4##
Claim 5
Dependent Claim
29 words
A process as claimed in claim 1, wherein said diacetylene monomer to be used in the first and/or third step is represented by formula: R--C.tbd.C--C.tbd.C--R wherein R is ##STR5##
Claim 6
Dependent Claim
66 words
A process as claimed in claim 1, wherein said diacetylene monomer to be used in the first and/or third step is represented by formula: R--C.tbd.C--C.tbd.C--R wherein R is --(CH 2 ) p OCONHR 1 , wherein R 1 represents an alkyl, aryl, aryl-substituted alkyl or alkyl substituted aryl group each having up to 20 carbon atoms; and p represents an integer of from 1 to 8.
Claim 7
Dependent Claim
47 words
A process as claimed in claim 5, wherein said diacetylene monomer to be used in the first and/or third step is represented by formula: R--C.tbd.C--C.tbd.C--R wherein R is --(CH 2 ) 4 OCONH--n--C q H 2q+1 , wherein q represents an integer of from 1 to 20.
Claim 8
Dependent Claim
30 words
A process as claimed in claim 1, wherein said first step comprises forming a film of diacetylene monomer on a base by a dry process and then polymerizing the monomer.
Claim 9
Dependent Claim
15 words
A process as claimed in claim 1, wherein thickness of from 20 to 5000 Å.
Claim 10
Dependent Claim
24 words
A process as claimed in claim 1, wherein said rubbing in the second step is carried out in one way 3 or more times.
Claim 11
Dependent Claim
30 words
A process as claimed in claim 1, wherein said diacetylene monomer to be used in the first step and that to be used in the third step are the same.
Claim 12
Dependent Claim
28 words
A process as claimed in claim 1, wherein said diacetylene to be used in the first step and that to be used in the third step are different.
Claim 13
Dependent Claim
101 words
A process as claimed in claim 11, wherein said diacetylene to be used in the first step is represented by formula: R--C.tbd.C--C.tbd.C--R wherein R is --(CH 2 ) p OCONHR 1 , wherein R 1 represents an alkyl, aryl, aryl-substituted alkyl or alkyl-substituted aryl group each having up to 20 carbon atoms; and p represents an integer of from 1 to 8, and said diacetylene monomer to be used in the third step is represented by formula: R--C.tbd.C--C.tbd.C--R wherein R represents an alkyl, aryl, aryl-substituted alkyl or alkyl-substituted aryl group each containing a fluorine atom and up to 12 carbon atoms.
Claim 14
Dependent Claim
27 words
A process as claimed in claim 1, wherein said diacetylene monomer build up in the third step has a thickness of from 20 Å to 50 μm.
Claim 15
Dependent Claim
23 words
A process as claimed in claim 1, wherein said polydiacetylene molecular orientated film has a thickness of from 100 Å to 500 μm.
Claim 16
Dependent Claim
21 words
A process as claimed in claim 1, wherein said polydiacetylene molecular orientated film has a dichroism constant of 5 or more.
Claim 17
Dependent Claim
21 words
A process as claimed in claim 1, wherein said polydiacetylene molecular orientated film has a dichroism constant of 10 or more.
Claim 18
Dependent Claim
21 words
A process as claimed in claim 1, wherein said polydiacetylene molecular orientated film has a dichroism constant of 20 or more.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-09-04 | 1993-03-06 | 1993-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-09-04 | 1997-03-06 | 1997-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-09-04 | 2001-03-06 | 2001-09-05 | $7700.00 | Window Closed / Lapsed |