US4303776A
Expired / Lapsed
US
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Bis(4-hydroxyphenyl sulfonylphenyl) bisphenyl disulfones and useful resins based thereon
Assignee: Bayer Corp
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Filing: 1978-09-18
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Granted: 1981-12-01
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Expires: 1998-09-18
Abstract
Abstract The present invention relates to the novel monomers generically identified as bis(4-hydroxyphenyl sulfonylphenyl) biphenyl disulfones, to a process for their production and to their use in the preparation of polycarbonates, polyurethanes, polyesters, polysulfones and polyethers.
Inventors
- 👤 Arthur L. Baron
- 👤 Parameswar Sivaramakrishnan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 00:36
CPC Classifications
C; C08; C08G; C08G75/00; C08G75/20; C08G18/00; C08G18/06; C08G18/28; C08G18/30; C08G18/38; C08G18/3855; C08G63/00; C08G63/68; C08G63/688; C08G65/00; C08G75/23
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
73 words
A monomer of the structural formula: ##STR4## wherein R 1 , R 2 , R 3 , R 4 , R 5 and R 6 , which may be the same or different, are C 1 -C 4 -alkyl, Cl or Br, and n 1 , n 2 , n 3 , n 4 , n 5 and n 6 , which may be the same or different, are 0, 1 or 2.
Claim 2
Dependent Claim
73 words
A monomer of the structural formula: ##STR4## wherein R 1 , R 2 , R 3 , R 4 , R 5 and R 6 , which may be the same or different, are C 1 -C 4 -alkyl, Cl or Br, and n 1 , n 2 , n 3 , n 4 , n 5 and n 6 , which may be the same or different, are 0, 1 or 2.
Claim 3
Dependent Claim
10 words
The monomer of claim 1 of the structural formula: ##STR5##
Claim 4
Dependent Claim
70 words
A process for the production of the monomer of claim 2 comprising (a) reacting 4,4'-bis(4-chlorophenyl sulfonyl) biphenyl in the presence of sufficient amounts of 4-mercaptophenol, potassium carbonate and dimethyl formamide and under reaction conditions sufficient to produce bis(4-hydroxyphenol thiophenyl) biphenyl disulfone, and (b) reacting the bis(4-hydroxyphenyl thiophenyl) biphenyl disulfone in the presence of sufficient amounts of acetic acid and hydrogen peroxide and under reaction conditions sufficient to produce said monomer.
Claim 5
Dependent Claim
75 words
A polycarbonate comprising structural units of the formula: ##STR6## wherein R 1 , R 2 , R 3 , R 4 , R 5 and R 6 , which may be the same or different, are C 1 -C 4 -alkyl, Cl or Br, and n 1 , n 2 , n 3 , n 4 , n 5 and n 6 , which may be the same or different, are 0, 1 or 2.
Claim 6
Dependent Claim
75 words
A polycarbonate comprising structural units of the formula: ##STR6## wherein R 1 , R 2 , R 3 , R 4 , R 5 and R 6 , which may be the same or different, are C 1 -C 4 -alkyl, Cl or Br, and n 1 , n 2 , n 3 , n 4 , n 5 and n 6 , which may be the same or different, are 0, 1 or 2.
Claim 7
Dependent Claim
75 words
A polyurethane comprising structural units of the formula: ##STR7## wherein R 1 , R 2 , R 3 , R 4 , R 5 and R 6 , which may be the same or different, are C 1 -C 4 -alkyl, Cl or Br, and n 1 , n 2 , n 3 , n 4 , n 5 and n 6 , which may be the same or different, are 0, 1 or 2.
Claim 8
Dependent Claim
75 words
A polyurethane comprising structural units of the formula: ##STR7## wherein R 1 , R 2 , R 3 , R 4 , R 5 and R 6 , which may be the same or different, are C 1 -C 4 -alkyl, Cl or Br, and n 1 , n 2 , n 3 , n 4 , n 5 and n 6 , which may be the same or different, are 0, 1 or 2.
Claim 9
Dependent Claim
75 words
A polyester comprising structural units of the formula: ##STR8## wherein R 1 , R 2 , R 3 , R 4 , R 5 and R 6 , which may be the same or different, are C 1 -C 4 -alkyl, Cl or Br, and n 1 , n 2 , n 3 , n 4 , n 5 and n 6 , which may be the same or different, are 0, 1 or 2.
Claim 10
Dependent Claim
75 words
A polyester comprising structural units of the formula: ##STR8## wherein R 1 , R 2 , R 3 , R 4 , R 5 and R 6 , which may be the same or different, are C 1 -C 4 -alkyl, Cl or Br, and n 1 , n 2 , n 3 , n 4 , n 5 and n 6 , which may be the same or different, are 0, 1 or 2.
Claim 11
Dependent Claim
75 words
A polysulfone comprising structural units of the formula: ##STR9## wherein R 1 , R 2 , R 3 , R 4 , R 5 and R 6 , which may be the same or different, are C 1 -C 4 -alkyl, Cl or Br, and n 1 , n 2 , n 3 , n 4 , n 5 and n 6 , which may be the same or different, are 0, 1 or 2.
Claim 12
Dependent Claim
75 words
A polysulfone comprising structural units of the formula: ##STR9## wherein R 1 , R 2 , R 3 , R 4 , R 5 and R 6 , which may be the same or different, are C 1 -C 4 -alkyl, Cl or Br, and n 1 , n 2 , n 3 , n 4 , n 5 and n 6 , which may be the same or different, are 0, 1 or 2.
Claim 13
Dependent Claim
75 words
A polyether comprising structural units of the formula: ##STR10## wherein R 1 , R 2 , R 3 , R 4 , R 5 and R 6 , which may be the same or different, are C 1 -C 4 -alkyl, Cl or Br, and n 1 , n 2 , n 3 , n 4 , n 5 and n 6 , which may be the same or different, are 0, 1 or 2.
Claim 14
Dependent Claim
75 words
A polyether comprising structural units of the formula: ##STR10## wherein R 1 , R 2 , R 3 , R 4 , R 5 and R 6 , which may be the same or different, are C 1 -C 4 -alkyl, Cl or Br, and n 1 , n 2 , n 3 , n 4 , n 5 and n 6 , which may be the same or different, are 0, 1 or 2.
Claim 15
Dependent Claim
46 words
A process for preparing an aromatic polycarbonate comprising reacting the monomer produced by the process of claim 3 with a member selected from the group consisting of carbonyl bromide, phosgene, the bis-choroformic ester of the monomer produced by the process of claim 3 and diaryl carbonates.
Claim 16
Dependent Claim
42 words
The process according to claim 3 wherein said 4,4'-bis(4-chlorophenyl sufonyl) biphenyl is produced by reacting sufficient amounts of monochlorobenzene and 4,4'-biphenyl disulfonyl in the presence of a catalytically effective amount of ferric chloride and under reaction conditions sufficient to produce 4,4'-bis(4-chlorophenyl sufonyl)biphenyl.
Claim 17
Dependent Claim
43 words
The process according to claim 3 wherein said 4,4'-bis(4-chlorophenyl sulfonyl) biphenyl is produced by reacting sufficient amounts of biphenyl and 4-chlorobenzene sulfonyl chloride in the presence of a catalytically effective amount of ferric chloride and under reaction conditions sufficient to produce 4,4'-bis(4-chlorophenyl sulfonyl)biphenyl.
Claim 18
Dependent Claim
28 words
The polycarbonate of claim 4 wherein n 1 , n 2 , n 3 , n 4 , n 5 and n 6 are all equal to 0.
Claim 19
Dependent Claim
28 words
The polyurethane of claim 5 wherein n 1 , n 2 , n 3 , n 4 , n 5 and n 6 are all equal to 0.
Claim 20
Dependent Claim
28 words
The polyester of claim 6 wherein n 1 , n 2 , n 3 , n 4 , n 5 and n 6 are all equal to 0.
Claim 21
Dependent Claim
28 words
The polysulfone of claim 7 wherein n 1 , n 2 , n 3 , n 4 , n 5 and n 6 are all equal to 0.
Claim 22
Dependent Claim
28 words
The polyether of claim 8 wherein n 1 , n 2 , n 3 , n 4 , n 5 and n 6 are all equal to 0.
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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) | 1984-11-30 | 1985-06-01 | 1985-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-11-30 | 1989-06-01 | 1989-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-11-30 | 1993-06-01 | 1993-12-01 | $7700.00 | Window Closed / Lapsed |