US4772679A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crystalline aromatic polyketone and process for producing the same
Assignee: Asahi Kasei Corp
•
Filing: 1985-12-13
•
Granted: 1988-09-20
•
Expires: 2005-12-13
Abstract
Abstract Crystalline aromatic polyketones having a linear polymer structure comprising repeating units [I] of ##STR1## and repeating units [II] of ##STR2## the repeating units [I] and [II] are bonded alternately, and the polymer has an intrinsic viscosity of at least 0.4, has excellent properties, particularly heat resistance, and can be used as shaped articles, coatings, films, fibers, etc.
Inventors
- 👤 Isaburo Fukawa
- 👤 Haruyuki Yoneda
- 👤 Hisaya Sakurai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:40
CPC Classifications
C; C08; C08G; C08G61/00; C08G61/12; C08G61/127; C08G75/00; C08G75/02; C08G75/0204; C08G75/0236; C08G75/024; C08G75/025; C08G75/0272
Claims Analysis
Total Claims: 36
Claim 1
Independent Claim
46 words
A cyrstalline aromatic polyketone having a linear polymer structure substantially comprising repeating units [I] of the formulae: ##STR65## and repeating units [II] of the formulae: ##STR66## said repeating units [I] and [II] being bonded alternately, and said polymer having an intrinsic viscosity of 0.4 or more.
Claim 2
Dependent Claim
46 words
A cyrstalline aromatic polyketone having a linear polymer structure substantially comprising repeating units [I] of the formulae: ##STR65## and repeating units [II] of the formulae: ##STR66## said repeating units [I] and [II] being bonded alternately, and said polymer having an intrinsic viscosity of 0.4 or more.
Claim 3
Dependent Claim
16 words
A crystalline aromatic polyketone according to claim 1, wherein the intrinsic viscosity is 0.4 to 1.8.
Claim 4
Dependent Claim
22 words
A crystalline aromatic polyketone according to claim 2, wherein the repeating unit [I] is ##STR67## and the repeating unit [II] is ##STR68##
Claim 5
Dependent Claim
22 words
A crystalline aromatic polyketone according to claim 2, wherein the repeating unit [I] is ##STR69## and the repeating unit [II] is ##STR70##
Claim 6
Dependent Claim
22 words
A crystalline aromatic polyketone according to claim 2, wherein the repeating unit [I] is ##STR71## and the repeating unit [II] is ##STR72##
Claim 7
Dependent Claim
20 words
A crystalline aromatic polyketone according to claim 5, wherein the polymer has a melting point of 330° C. or higher.
Claim 8
Dependent Claim
22 words
A crystalline aromatic polyketone according to claim 2, wherein the repeating unit [I] is ##STR73## and the repeating unit [II] is ##STR74##
Claim 9
Dependent Claim
20 words
A crystalline aromatic polyketone according to claim 7, wherein the polymer has a melting point of 280° C. or higher.
Claim 10
Dependent Claim
36 words
A crystalline aromatic polyketone according to claim 2, wherein the repeating unit [I] is 1 to 99 mole % of ##STR75## and 99 to 1 mole % of ##STR76## and the repeating unit [II] is ##STR77##
Claim 11
Dependent Claim
36 words
A crystalline aromatic polyketone according to claim 2, wherein the repeating unit [I] is 1 to 99 mole % of ##STR78## and 99 to 1 mole % of ##STR79## and the repeating unit [II] is ##STR80##
Claim 12
Dependent Claim
36 words
A crystalline aromatic polyketone according to claim 2, wherein the repeating unit [I] is ##STR81## and the repeating unit [II] is 1 to 99 mole % of ##STR82## and 99 to 1 mole % of ##STR83##
Claim 13
Dependent Claim
36 words
A crystalline aromatic polyketone according to claim 2, wherein the repeating unit [I] is ##STR84## and the repeating unit [II] is 1 to 99 mole % of ##STR85## and 99 to 1 mole % of ##STR86##
Claim 14
Dependent Claim
50 words
A crystalline aromatic polyketone according to claim 2, wherein the repeating unit [I] is 1 to 99 mole % of ##STR87## and 99 to 1 mole % of ##STR88## and the repeating unit [II] is 1 to 99 mole % of ##STR89## and 99 to 1 mole % of ##STR90##
Claim 15
Dependent Claim
68 words
A process for producing a crystalline aromatic polyketone having a linear polymer structure substantially comprising repeating units of the formulae: ##STR91## and repeating units [II] of the formulae: ##STR92## said repeating units [I] and [II] being bonded, alternately, which comprises polycondensing a 4,4'-dihaloterephthalophenone and/or a 4,4'-dihalobenzophenone with 4- hydroxythiophenol and/or p-dimercaptobenzene in the presence of an alkali using an aromatic ketone or an aromatic sulfone as a solvent.
Claim 16
Dependent Claim
68 words
A process for producing a crystalline aromatic polyketone having a linear polymer structure substantially comprising repeating units of the formulae: ##STR91## and repeating units [II] of the formulae: ##STR92## said repeating units [I] and [II] being bonded, alternately, which comprises polycondensing a 4,4'-dihaloterephthalophenone and/or a 4,4'-dihalobenzophenone with 4- hydroxythiophenol and/or p-dimercaptobenzene in the presence of an alkali using an aromatic ketone or an aromatic sulfone as a solvent.
Claim 17
Dependent Claim
26 words
A process according to claim 14, wherein the alkali is at least one member selected from the group consisting of carbonates and bicarbonates of alkali metals.
Claim 18
Dependent Claim
72 words
A process for producing a crystalline aromatic polyketone having a linear polymer structure substantially comprising repeating units [I] of the formulae: ##STR93## and repeating units [II] of the formulae: ##STR94## said repeating units [I] and [II] being bonded alternately, which comprises polycondensing a 4,4'-dihaloterephthalophenone and/or a 4,4'-dihalobenzophenone with an alkali metal salt of 4-hydroxythiophenol and/or an alkali metal salt of p-dimercaptobenzene using an aromatic ketone or an aromatic sulfone as a solvent.
Claim 19
Dependent Claim
72 words
A process for producing a crystalline aromatic polyketone having a linear polymer structure substantially comprising repeating units [I] of the formulae: ##STR93## and repeating units [II] of the formulae: ##STR94## said repeating units [I] and [II] being bonded alternately, which comprises polycondensing a 4,4'-dihaloterephthalophenone and/or a 4,4'-dihalobenzophenone with an alkali metal salt of 4-hydroxythiophenol and/or an alkali metal salt of p-dimercaptobenzene using an aromatic ketone or an aromatic sulfone as a solvent.
Claim 20
Dependent Claim
20 words
A process according to claim 14, wherein the polycondensation is carried out at a temperature of 200° to 400° C.
Claim 21
Dependent Claim
42 words
A process according to claim 14, wherein the aromatic ketone is a benzophenone compound of the formula: ##STR95## wherein R 1 and R 2 are independently a hydrogen atom, an alkyl group having 1 to 3 carbon atoms or a phenyl group.
Claim 22
Dependent Claim
12 words
A process according to claim 18, wherein the benzophenone compound is benzophenone.
Claim 23
Dependent Claim
54 words
A process according to claim 14, wherein the aromatic ketone is a xanthone or thioxanthone compound of the formula: ##STR96## wherein R 3 and R 4 are independently a hydrogen atom, an alkyl group having 1 to 3 carbon atoms, or a phenyl group; and Y is an oxygen atom or a sulfur atom.
Claim 24
Dependent Claim
14 words
A process according to claim 20, wherein the xanthone or thioxanthone copound is xanthone.
Claim 25
Dependent Claim
14 words
A process according to claim 20, wherein the xanthone or thioxanthone compound is thioxanthone.
Claim 26
Dependent Claim
47 words
A process according to claim 14, wherein the aromatic sulfone is at least one compound selected from aromatic sulfones of the formulae: ##STR97## wherein R 5 and R 6 are independently a hydrogen atom, an alkyl group having 1 to 3 carbon atoms or a phenyl group.
Claim 27
Dependent Claim
12 words
A process according to claim 23, wherein the aromatic sulfone is diphenylsulfone.
Claim 28
Dependent Claim
64 words
A crystalline aromatic polyketone having a linear polymer structure substantially comprising repeating units [I] of the formulae: ##STR98## and repeating units [II] of the formulae: ##STR99## said repeating units [I] and [II] being bonded alternately, and said polymer having an intrinsic viscosity of 0.4 or more, obtained by polycondensing a 4,4'-dihaloterephthalophenone and/or a 4,4'-dihalobenzophenone with 4-hydroxythiophenol and/or p-dimercaptobenzene in the presence of an alkali.
Claim 29
Dependent Claim
64 words
A crystalline aromatic polyketone having a linear polymer structure substantially comprising repeating units [I] of the formulae: ##STR98## and repeating units [II] of the formulae: ##STR99## said repeating units [I] and [II] being bonded alternately, and said polymer having an intrinsic viscosity of 0.4 or more, obtained by polycondensing a 4,4'-dihaloterephthalophenone and/or a 4,4'-dihalobenzophenone with 4-hydroxythiophenol and/or p-dimercaptobenzene in the presence of an alkali.
Claim 30
Dependent Claim
68 words
A crystalline aromatic polyketone having a linear polymer structure substantially comprising repeating units [I] of the formulae: ##STR100## and repeating units [II] of the formulae: ##STR101## said repeating units [I] and [II] being bonded alternately, and said polymer having an intrinsic viscosity of 0.4 or more, obtained by polycondensing a 4,4'-dihaloterephthalophenone and/or a 4,4'-dihalobenzophenone with an alkali metal salt of 4-hydroxyethiophenol and/or an alkali metal salt of p-dimercaptobenzene.
Claim 31
Dependent Claim
68 words
A crystalline aromatic polyketone having a linear polymer structure substantially comprising repeating units [I] of the formulae: ##STR100## and repeating units [II] of the formulae: ##STR101## said repeating units [I] and [II] being bonded alternately, and said polymer having an intrinsic viscosity of 0.4 or more, obtained by polycondensing a 4,4'-dihaloterephthalophenone and/or a 4,4'-dihalobenzophenone with an alkali metal salt of 4-hydroxyethiophenol and/or an alkali metal salt of p-dimercaptobenzene.
Claim 32
Dependent Claim
25 words
A crystalline aromatic polyketone according to claim 25, wherein the polycondensation is conducted by using an aromatic ketone or an aromatic sulfone as a solvent.
Claim 33
Dependent Claim
19 words
A crystalline aromatic polyketone according to claim 25, wherein the polymer has an intrinsic viscosity of 0.4 to 1.8.
Claim 34
Dependent Claim
19 words
A crystalline aromatic polyketone according to claim 27, wherein the polymer has an intrinsic viscosity of 0.4 to 1.8.
Claim 35
Dependent Claim
24 words
A crystalline aromatic polyketone according to claim 25, wherein the 4,4'-dihaloterephthalophenone is 4,4'-difluoroterephthalophenone, 4,4'-dichloroterephthalophenone and/or 4-fluoro-4'-chloroterephthalophenone, and the 4,4'-dihalobenzophenone is 4,4'-difluorobenzophenone, 4,4'-dichlorobenzophenone and/or 4-fluoro-4'-chlorobenzophenone.
Claim 36
Dependent Claim
22 words
A process according to claim 14, wherein the 4,4'-dihaloterephthalophenone is 4,4'-difluoroterephthalophenone, 4,4'-dichloroterephthalophenone and/or 4-fluoro-4'-chloroterephthalophenone, and the 4,4'-dihalobenzene is 4,4'-difluorobenzophenone, 4,4'-dichlorobenzophenone and/or 4-fluoro-4'-chlorobenzophenone.
References Cited (Backward Citations)
US3432468A
Cited
GB1264900A
Cited
GB1255588A
Cited
GB1295584A
Cited
GB1368967A
Cited
US4320224A
Cited
EP0135938A2
Cited
JPS60120720A
Cited
EP0152161A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-09-20 | 1992-03-21 | 1992-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-09-20 | 1996-03-21 | 1996-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-09-20 | 2000-03-21 | 2000-09-20 | $7700.00 | Window Closed / Lapsed |