Patent US4024119A successfully refreshed from Google Patents.
US4024119A
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Polysulfone resins containing bibenzyl sulfone repeating units
Assignee: Foster Grant Co Inc
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Filing: 1976-01-12
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Granted: 1977-05-17
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Expires: 1996-01-12
Abstract
Abstract Sulfone polymers are disclosed containing bibenzyl sulfone repeating units having the formula ##STR1## These polymers exhibit good mechanical properties, toughness, flexiblity, thermal and chemical stability and can be heat processed, extruded, drawn or otherwise formed into shaped articles having a high degree of strength and good dielectric properties.
Inventors
- 👤 Fred Max Sonnenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:29
CPC Classifications
C; C08; C08G; C08G75/00; C08G75/20; C07; C07C; C07C309/00; C07C309/78; C07C309/86; Y; Y10; Y10S; Y10S260/00; Y10S260/23
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
5 words
A homopolymer of bibenzyl sulfone.
Claim 2
Dependent Claim
5 words
A homopolymer of bibenzyl sulfone.
Claim 3
Dependent Claim
66 words
A copolymer containing the following structural units: ##STR12## wherein: 0.01 ≦ x ≦ 0.99; and x equals the molar ratio of bibenzyl 4-sulfone units present in the total polymer weight; n equals the degree of polymerization; and Z is selected from the group consisting of a direct link, oxygen, sulfur, lower alkylidene, or lower alkyl other than ethylene having from about 1 to 5 carbon atoms.
Claim 4
Dependent Claim
66 words
A copolymer containing the following structural units: ##STR12## wherein: 0.01 ≦ x ≦ 0.99; and x equals the molar ratio of bibenzyl 4-sulfone units present in the total polymer weight; n equals the degree of polymerization; and Z is selected from the group consisting of a direct link, oxygen, sulfur, lower alkylidene, or lower alkyl other than ethylene having from about 1 to 5 carbon atoms.
Claim 5
Dependent Claim
9 words
The copolymer of claim 2 wherein Z is oxygen.
Claim 6
Dependent Claim
11 words
The copolymer of claim 2 wherein Z is a direct link.
Claim 7
Dependent Claim
29 words
The copolymer of claim 2 having an inherent viscosity within the range of about 0.2 to 1.0 when measured at 25° C as a 1% polymer solution in N-methyl-pyrrolidinone.
Claim 8
Dependent Claim
13 words
The copolymer of claim 2 wherein x ranges from about 0.25 to 0.50.
Claim 9
Dependent Claim
99 words
A terpolymer containing the following structural units: ##STR13## wherein: 0.01 ≦ x < x + y ≦ 0.99; and x equals the molar ratio of bibenzyl 4-sulfone units present in the total polymer weight; y equals the molar ratio of ##STR14## present in the total polymer weight; n equals the degree of polymerization; Z is selected from the group consisting of a direct link, oxygen, sulfur, lower alkylidene or lower alkyl other than ethylene having from about 1 to 5 carbon atoms; and Z' is a member of Z different than the specific Z group present in the polymer.
Claim 10
Dependent Claim
99 words
A terpolymer containing the following structural units: ##STR13## wherein: 0.01 ≦ x < x + y ≦ 0.99; and x equals the molar ratio of bibenzyl 4-sulfone units present in the total polymer weight; y equals the molar ratio of ##STR14## present in the total polymer weight; n equals the degree of polymerization; Z is selected from the group consisting of a direct link, oxygen, sulfur, lower alkylidene or lower alkyl other than ethylene having from about 1 to 5 carbon atoms; and Z' is a member of Z different than the specific Z group present in the polymer.
Claim 11
Dependent Claim
15 words
The copolymer of claim 7 wherein Z is a direct link and Z' is oxygen.
Claim 12
Dependent Claim
29 words
The copolymer of claim 7 having an inherent viscosity within the range of about 0.2 to 1.0 when measured at 25° C as a 1% polymer solution in N-methyl-2-pyrrolidinone.
Claim 13
Dependent Claim
13 words
The copolymer of claim 7 wherein x ranges from about 0.25 to 0.50.
Claim 14
Dependent Claim
71 words
A copolymer having the structure: ##STR15## n equals the degree of polymerization and is such that the inherent viscosity of the copolymer is within the range of about 0.2 to 1.0 when determined as a 1% solution at 25° C in N-methyl-2-pyrrolidinone; Z is selected from the group consisting of a direct link, oxygen, sulfur, lower alkylidene, or lower alkyl other than ethylene, having from about 1 to 5 carbon atoms.
Claim 15
Dependent Claim
71 words
A copolymer having the structure: ##STR15## n equals the degree of polymerization and is such that the inherent viscosity of the copolymer is within the range of about 0.2 to 1.0 when determined as a 1% solution at 25° C in N-methyl-2-pyrrolidinone; Z is selected from the group consisting of a direct link, oxygen, sulfur, lower alkylidene, or lower alkyl other than ethylene, having from about 1 to 5 carbon atoms.
Claim 16
Dependent Claim
9 words
The copolymer of claim 11 wherein Z is oxygen.
Claim 17
Dependent Claim
84 words
A polymer product containing the following structural units: ##STR16## wherein: Z is selected from the group consisting of a direct link, oxygen, sulfur, lower alkylidene or lower alkyl other than ethylene having from about 1 to 5 carbon atoms; Z' is a member of Z different than the specific Z group present in the polymers; a and b are positive whole numbers equal to or greater than 1 but not necessarily equal to each other; and n is equal to the degree of polymerization.
Claim 18
Dependent Claim
84 words
A polymer product containing the following structural units: ##STR16## wherein: Z is selected from the group consisting of a direct link, oxygen, sulfur, lower alkylidene or lower alkyl other than ethylene having from about 1 to 5 carbon atoms; Z' is a member of Z different than the specific Z group present in the polymers; a and b are positive whole numbers equal to or greater than 1 but not necessarily equal to each other; and n is equal to the degree of polymerization.
Claim 19
Dependent Claim
30 words
The polymer product of claim 13 having an inherent viscosity within the range of about 0.2 to 1.0 when measured at 25° C as a 1% polymer solution in N-methyl-2-pyrrolidinone.
Claim 20
Dependent Claim
18 words
The polymer product of claim 14 containing from about 25 to 50 mole percent of bibenzyl sulfone units.
Claim 21
Dependent Claim
16 words
The polymer product of claim 13 wherein Z is oxygen and Z' is a direct link.
Claim 22
Dependent Claim
34 words
A polysulfone polymer comprising from about 1 to 99 mole percent of polymerized units having the formula: ##STR17## and correspondingly from about 99 to 1 mole percent of polymerized aromatic sulfone units different therefrom.
Claim 23
Dependent Claim
34 words
A polysulfone polymer comprising from about 1 to 99 mole percent of polymerized units having the formula: ##STR17## and correspondingly from about 99 to 1 mole percent of polymerized aromatic sulfone units different therefrom.
Claim 24
Dependent Claim
10 words
A shaped article prepared from the polymer of claim 17.
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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) | 1980-05-16 | 1980-11-15 | 1981-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-16 | 1984-11-15 | 1985-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-16 | 1988-11-15 | 1989-05-17 | $7700.00 | Window Closed / Lapsed |