Patent US3859252A successfully refreshed from Google Patents.
US3859252A
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Polyamido polysulfone thermoplastics and intermediates thereof
Assignee: Uniroyal Chemical Co Inc
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Filing: 1972-04-28
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Granted: 1975-01-07
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Expires: 1992-04-28
Abstract
Abstract Thermoplastic copolymers having both bis-amide moieties and polyarylene bis-sulfone moieties in the recurring structural units of the chains are formed by the interaction of (1) polyarylene bis-sulfone monomers having two terminal amideforming groups and (2) difunctional compounds having two terminal amide-forming groups complementary to those of the polysulfone monomers. Thus, a diamino polyarylene polysulfone monomer is condensed with a di-acid chloride or anhydride; or, a polyarylene di-sulfone di(carboacid chloride) monomer is condensed with an aromatic diamine.
Inventors
- 👤 Iwhan Cho
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:40
CPC Classifications
C; C07; C07C; C07C317/00; C08; C08G; C08G69/00; C08G69/02; C08G69/26; C08G69/32; C08G69/42; C08G75/00; C08G75/20
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
48 words
THERMOPLASTIC CONDENSATION INTERPOLYMERS IN WHICH THE RECURRING UNIT HAS THE STRUCTURE (-AR'' -SO2-X-SO2-AR'' - (BIS-AMIDE STRUCTURE))-, WHEREIN X IS ARYLENE OR OXYDIARYLENE, AR'' IS PHENYLENE, "BISAMIDE STRUCTURE" IS -NH-CO-R-CO-NH-, -CO-NH-R'' -NH-CO- OR -NH-SO2-R" -SO2-NH-, R IS ALKYLENE OR PHENYLENE, R'' IS PHENYLENE OR P,P''-DIPHENYLENE, AND R" IS P,P''-OXYDIPHENYLENE.
Claim 2
Dependent Claim
48 words
THERMOPLASTIC CONDENSATION INTERPOLYMERS IN WHICH THE RECURRING UNIT HAS THE STRUCTURE (-AR'' -SO2-X-SO2-AR'' - (BIS-AMIDE STRUCTURE))-, WHEREIN X IS ARYLENE OR OXYDIARYLENE, AR'' IS PHENYLENE, "BISAMIDE STRUCTURE" IS -NH-CO-R-CO-NH-, -CO-NH-R'' -NH-CO- OR -NH-SO2-R" -SO2-NH-, R IS ALKYLENE OR PHENYLENE, R'' IS PHENYLENE OR P,P''-DIPHENYLENE, AND R" IS P,P''-OXYDIPHENYLENE.
Claim 3
Dependent Claim
35 words
Interpolymers according to claim 1 wherein the -Ar''-SO2-X-SO2-Ar''- component is provided by a bis(aminophenylsulfonyl) arylene monomer and the -(bis-amide structure)- is -NH-CO-R-CO-NH-, the -CO-R-CO- portion thereof being provided by an organic di-acid chloride or anhydride.
Claim 4
Dependent Claim
16 words
Interpolymers according to claim 2 wherein said -CO-R-CO-portion is provided by an aromatic dicarboxylic acid chloride.
Claim 5
Dependent Claim
13 words
Interpolymers according to claim 2 wherein said -CO-R-CO-portion is provided by isophthaloyl chloride.
Claim 6
Dependent Claim
15 words
Interpolymers according to claim 2 wherein said -CO-R-CO-portion is provided by an alkanedioic acid chloride.
Claim 7
Dependent Claim
13 words
Interpolymers according to claim 2 wherein said -CO-R-CO-portion is provided by sebacoyl chloride.
Claim 8
Dependent Claim
33 words
Interpolymers according to claim 1 wherein the -Ar''-SO2-X-SO2-Ar''- component is provided by a bis(aminophenylsulfonyl)arylene monomer and the -(bis-amide structure)- is -NH-SO2-R''''-SO2-NH-, the -SO2-R''''-SO2- portion thereof being provided by an oxy aromatic disulfonyl chloride.
Claim 9
Dependent Claim
13 words
Interpolymers according to claim 7 wherein the -Ar''-SO2-X-SO2-Ar''- component is provided by 4,4''-oxybis(4-(phenylsulfonyl)aniline).
Claim 10
Dependent Claim
14 words
Interpolymers according to claim 7 wherein said -SO2-R''''-SO2-portion is provided by oxydiphenylene disulfonyl chloride.
Claim 11
Dependent Claim
13 words
Interpolymers according to claim 2 wherein the -Ar''-SO2-X-SO2-Ar''- component is provided by 4,4''-biphenylenebis-(4-sulfonylaniline).
Claim 12
Dependent Claim
30 words
Interpolymers according to claim 1 wherein the -Ar''-SO2-X-SO2-Ar''- component is provided by an oxybis(p-phenylsulfonylbenzoylchloride) and the -(bis-amide structure)- is -CO-NH-R''-NH-CO-, the -NH-R''-NH- portion thereof being provided by an aromatic diamine.
Claim 13
Dependent Claim
13 words
Interpolymers according to claim 11 wherein the -Ar''-SO2-X-SO2-Ar''- component is provided by 4,4''-oxybis(p-phenylsulfonylbenzoylchloride).
Claim 14
Dependent Claim
12 words
Interpolymers according to claim 11 wherein said -NH-R''-NH-portion is provided by m-phenylenediamine.
Claim 15
Dependent Claim
14 words
Interpolymers according to claim 11 wherein the said -NH-R''-NH- portion is provided by p,p-biphenylenediamine.
Claim 16
Dependent Claim
10 words
A shaped article composed of the interpolymers of claim 1.
References Cited (Backward Citations)
US3505288A
Cited
US3503931A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-06 | 1978-07-08 | 1979-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-06 | 1982-07-08 | 1983-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-06 | 1986-07-08 | 1987-01-07 | $7700.00 | Window Closed / Lapsed |