Patent US4978146B1 successfully refreshed from Google Patents.
US3887503A
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US
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3-(Hydroxyhydrocarbylsecondaryamino)thiophene 1,1-dioxides and polyurethanes chain extended therewith
Assignee: Uniroyal Chemical Co Inc
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Filing: 1974-01-18
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Granted: 1975-06-03
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Expires: 1994-01-18
Abstract
Abstract Chain extended polyurethanes are prepared, using certain 3(hydroxyhydrocarbylsecondaryamino)thiophene 1,1-dioxides, some of which are new chemicals. E.g., 3-(2hydroxypropylamino)tetrahydrothiophene 1,1-dioxide is especially useful as a chain extender for high resiliency, flexible polyurethane foams.
Inventors
- 👤 Chung-Ling Mao
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:09
CPC Classifications
C; C07; C07D; C07D333/00; C07D333/02; C07D333/46; C07D333/48; C07D333/50; C07D333/52; C07D333/62; C07D333/66; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/10; C08G18/28; C08G18/30; C08G18/38; C08G18/3855; C08G18/3874
Claims Analysis
Total Claims: 38
Claim 1
Independent Claim
51 words
In a method of making polyurethanes which comprises reacting a long chain polyol selected from the group consisting of polyesters, polyethers and polyhydrocarbons with a chain extender and with a polyisocyanate, the improvement which comprises using as chain extender a 3-(hydroxyhydrocarbylsecondaryamino)thiophene 1,1-dioxide of one of The following formulas I or II:
Claim 2
Dependent Claim
51 words
In a method of making polyurethanes which comprises reacting a long chain polyol selected from the group consisting of polyesters, polyethers and polyhydrocarbons with a chain extender and with a polyisocyanate, the improvement which comprises using as chain extender a 3-(hydroxyhydrocarbylsecondaryamino)thiophene 1,1-dioxide of one of The following formulas I or II:
Claim 3
Dependent Claim
51 words
IN A METHOD OF MAKING POLURETHANES WHICH COMPRISES REACTING A LONG CHAIN POLYOL SELECTED FROM THE GROUP CONSISTING OF POLYESTERS, POLYETHERS AND POLYHYDROCARBONS WITH A CHAIN EXTENDER AND WITH A POLYISOCYANATE, THE IMPROVEMENT WHICH COMPRISES USING AS CHAIN EXTENDER A 3(HYDROXYHYDROCARBYLSECONDARYAMINO)THIOPENE 1,1-DIOXIDE OF ONE OF THE FOLLOWING FORMULAS I OR II:
Claim 4
Dependent Claim
51 words
IN A METHOD OF MAKING POLURETHANES WHICH COMPRISES REACTING A LONG CHAIN POLYOL SELECTED FROM THE GROUP CONSISTING OF POLYESTERS, POLYETHERS AND POLYHYDROCARBONS WITH A CHAIN EXTENDER AND WITH A POLYISOCYANATE, THE IMPROVEMENT WHICH COMPRISES USING AS CHAIN EXTENDER A 3(HYDROXYHYDROCARBYLSECONDARYAMINO)THIOPENE 1,1-DIOXIDE OF ONE OF THE FOLLOWING FORMULAS I OR II:
Claim 5
Dependent Claim
22 words
A METHOD AS IN CLAIM 1 IN WHICH WATER IS ADDED AS AN ADDITIONAL REACTION, AND THE RESULTING POLYURETHANE IS A FOAM.
Claim 6
Dependent Claim
22 words
A method as in claim 1 in which water is added as an additional reactant, and the resulting polyurethane is a foam.
Claim 7
Dependent Claim
57 words
In a method of making polyurethanes which comprises reacting a long chain polyol selected from the group consisting of polyesters, polyethers and polyhydrocarbons with a chain extender and with a polyisocyanate, the improvement which comprises using as a chain extender a compound as described in claim 1, which is a 3-(hydroxyhydrocarbylsecondaryamino)tetrahydrothiophene 1,1-dioxide of the said Formula I.
Claim 8
Dependent Claim
22 words
A method as in claim 3 in which water is added as an additional reactant, and the resulting polyurethane is a foam.
Claim 9
Dependent Claim
28 words
A method as in claim 4 in which X, Y and Z are hydrogen and R is an open chain alkylene group having 2 to 10 carbon atoms.
Claim 10
Dependent Claim
32 words
A method as in claim 4 in which Y an Z are hydrogen, X is a halogen atom, and R is an open chain alkylene group having 2 to 10 carbon atoms.
Claim 11
Dependent Claim
33 words
A method as in claim 4 in which X, Y and Z are hydrogen and R is an open chain alkylene group having 2 to 10 carbon atoms substituted with a phenyl group.
Claim 12
Dependent Claim
26 words
A method as in claim 4 in which X, Y and Z are hydrogen and R is a cycloalkylne group having 4 to 8 carbon atoms.
Claim 13
Dependent Claim
15 words
A method as in claim 4 in which the said chain extender is 3-(2-hydroxypropylamino)tetrahydrothiophene 1,1-dioxide.
Claim 14
Dependent Claim
16 words
A method as in claim 2 in which the said chain extender is 3-(2-hydroxypropylamino)-2,3-dihydrobenzo(b) thiophene 1,1-dioxide.
Claim 15
Dependent Claim
15 words
A method as in claim 4 in which the said chain extender is 3-(2-hydroxyethylamino)tetahydrothiophene 1,1-dioxide.
Claim 16
Dependent Claim
42 words
A polyurethane which is a reaction product of a long chain polyol selected from the group consisting of polyesters, polyethers and polyhydrocarbons with a chain extender and with a polyisocyanate, the said chain extender being a compound as described in claim 1.
Claim 17
Dependent Claim
36 words
A polyurethane as in claim 12 in which the said chain extender is a compound wherein X, Y and Z are hydrogen and R is an open chain alkylene group having 2 to 10 carbon atoms.
Claim 18
Dependent Claim
40 words
A polyurethane as in claim 12 in which the said chain extender is a compound wherein Y and Z are hydroogen, X is a halogen atom, and R is an open chain alkylene group having 2 to 10 carbon atoms.
Claim 19
Dependent Claim
41 words
A polyurethane as in claim 12 in Which the said chain extender is a compound wherein X, Y and Z are hydrogen and R is an open chain alkylene group having 2 to 10 carbon atoms substituted with a phenyl group.
Claim 20
Dependent Claim
34 words
A polyurethane as in claim 12 in which the said chain extender is a compound wherein X, Y and Z are hydrogen and R is a cycloalkylene group having 4 to 8 carbon atoms.
Claim 21
Dependent Claim
15 words
A polyurethane as in claim 12 in which the said chain extender is 3-(2-hydroxypropylamino)tetrahydrothiophene 1,1-dioxide.
Claim 22
Dependent Claim
15 words
A polyurethane as in claim 12 in which the said chain extender is 3-(2-hydroxypropylamine)-2,3-dihydrobenzo-(b)thiophene 1,1-dioxide.
Claim 23
Dependent Claim
15 words
A polyurethane as in claim 12 in which the said chain extender is 3-(2-hydroxyethylamino)tetrahydrothiophene 1,1-dioxide.
Claim 24
Dependent Claim
36 words
Polyurethane foam made from the reaction products of a polyalkylene polyether polyol having a hydroxylic functionally of at least two, an organic polyisocyanate and a chain extender which is a compouond as described in claim 1.
Claim 25
Dependent Claim
36 words
Polyurethane foam as in claim 20 in which the said chain extender is a compound wherein X, Y and Z are hydrogen and R is an open chain alkylene group having 2 to 10 carbon atoms.
Claim 26
Dependent Claim
40 words
Polyurethane foam as in claim 20 in which the said claim extender is a compound wherein Y and Z are hydrogen, X is a halogen atom, and R is an open chain alkylene group having 2 to 10 carbon atoms.
Claim 27
Dependent Claim
41 words
Polyurethane foam as in claim 20 in which theh said chain extender is a compound wherein X, Y and Z are hydrogen and R is an open chain alkylene group having 2 to 10 carbon atoms substituted with a phenyl group.
Claim 28
Dependent Claim
22 words
Polyurethane foam as in claim 20 in which the hydrogen and R is a cycloalkylene group having 4 to 8 carbon atoms.
Claim 29
Dependent Claim
15 words
Polyurethane foam as in claim 20 in which the said chain extender is 3-(2-hydroxypropylamine)tetrahydrothiopene 1,1-dioxide.
Claim 30
Dependent Claim
15 words
Polyurethane foam as in claim 20 in which the said chain extender is 3-(2-hydroxypropylamine)-2,3-dihydrobenzo(b)thiophene 1,1-dioxide.
Claim 31
Dependent Claim
15 words
Polyurethane foam as in claim 20 in which the said chain extender is 3-(2-hydroxyethylamino)tetrahydrothiophene 1,1-dioxide.
Claim 32
Dependent Claim
46 words
In a one-shot process for making polyurethane foam wherein a polyalkylene polyether polyol having a hydroylic functionality of at least two, an organic polyisocyanaate and a chain extender are simultaneously mixed together, the improvement wherein the siad chain extender is a compound as in claim 1.
Claim 33
Dependent Claim
37 words
A one-shot process as in claim 28 in which the said chain extender is a compound wherein X, Y and Z are hydrogen and R is an open chain alkylene group having 2 to 10 carbon atoms.
Claim 34
Dependent Claim
41 words
A one-shot process as in claim 28 in which the said chain extender is a compound where Y and Z are hydrogen, X is a halogen atom, and R is an open chain alkylene group having 2 to 10 carbon atoms.
Claim 35
Dependent Claim
42 words
A one-shot process as in claim 28 in which the said chain extender is a compound wherein X, Y and Z are hydrogen and R is an open chain alkylene group having 2 to 10 carbon atoms substituted with a phenyl group.
Claim 36
Dependent Claim
35 words
A one-shot process as in claim 28 in which the said chain extender is a compound wherein X, Y and Z are hydrogen and R is a cycloalkylene group having 4 to 8 carbon atoms.
Claim 37
Dependent Claim
16 words
A one-shot process as in claim 28 in which the said chain extender is 3-(2-hydroxypropylamino)tetrahydrothiophene 1,1-dioxide.
Claim 38
Dependent Claim
16 words
A one-shot process as in claim 28 in which the said chain extender is 3-(2-hydroxypropylamino)-2,3-dihydrobenzo(b)thiophene 1,1-dioxide.
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) | 1978-06-02 | 1978-12-02 | 1979-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-02 | 1982-12-02 | 1983-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-02 | 1986-12-02 | 1987-06-03 | $7700.00 | Window Closed / Lapsed |