Patent US4489177A successfully refreshed from Google Patents.
US4489177A
Expired / Lapsed
US
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Isocyanate-reactive compounds from TDI distillation residue and polyurethanes prepared therefrom
Assignee: Olin Corp
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Filing: 1983-12-29
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Granted: 1984-12-18
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Expires: 2003-12-29
Abstract
Abstract Isocyanate-reactive compounds are prepared by the reaction of TDI distillation residue with a polyol in such proportions as to obtain a reaction product having an OH-number (mg KOH/g) of about 200 to about 700. The TDI distillation residue is obtained from the distillation of the product of phosgenating toluene diamine to the corresponding toluene diisocyanate and has a toluene diisocyanate content of about 30% to about 70% by weight. The isocyanate-reactive compounds are useful in polyurethane formulations.
Inventors
- 👤 James M. O'Connor
- 👤 Wilhelm J. Schnabel
- 👤 Michael L. Rosin
- 👤 Robert M. Early
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:30
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/48; C08G18/50; C08G18/5021; C08G18/5036; C08G18/5045; C08G18/30; C08G18/38; C08G18/3819; C08G18/3823; C08G18/3831; C08G18/42; C08G18/46; C08G18/4615; C08G18/70; C08G18/72; C08G18/721; C08G18/727
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
70 words
A process for preparing an isocyanate-reactive compound, comprising reacting TDI distillation residue with a polyol in such proportions as to obtain a reaction product having an OH-number (mg KOH/g) of about 200 to about 700, said TDI distillation residue being obtained from the distillation of the product of phosgenating toluene diamine to the corresponding toluene diisocyanate and having a toluene diisocyanate content of about 30% to about 70% by weight.
Claim 2
Dependent Claim
70 words
A process for preparing an isocyanate-reactive compound, comprising reacting TDI distillation residue with a polyol in such proportions as to obtain a reaction product having an OH-number (mg KOH/g) of about 200 to about 700, said TDI distillation residue being obtained from the distillation of the product of phosgenating toluene diamine to the corresponding toluene diisocyanate and having a toluene diisocyanate content of about 30% to about 70% by weight.
Claim 3
Dependent Claim
35 words
The process of claim 1, wherein said TDI distillation residue and said polyol are employed in such proportions as to obtain a reaction product having an OH-number (mg KOH/g) of about 250 to about 600.
Claim 4
Dependent Claim
26 words
The process of claim 1, wherein said reaction between said TDI distillation residue and said polyol is carried out in the presence of an organic solvent.
Claim 5
Dependent Claim
28 words
The process of claim 1, wherein said polyol has a molecular weight from about 62 to about 7,000 and an average functionality from about 2 to about 4.
Claim 6
Dependent Claim
18 words
The process of claim 4, wherein said polyol has a molecular weight from about 106 to about 3,000.
Claim 7
Dependent Claim
24 words
The process of claim 5, wherein said polyol is selected from the group consisting of diethylene glycol, triethylene glycol, tetraethylene glycol and dipropylene glycol.
Claim 8
Dependent Claim
11 words
An isocyanate-reactive compound prepared according to the process of claim 1.
Claim 9
Dependent Claim
11 words
An isocyanate-reactive compound prepared according to the process of claim 6.
Claim 10
Dependent Claim
101 words
A process for preparing a polyurethane foam from a reaction mixture which comprises reacting an organic polyisocyanate; a foaming agent; a reaction catalyst; and an isocyanate-reactive compound prepared by reacting TDI distillation residue with a polyol in such proportions as to obtain a reaction product having an OH-number (mg KOH/g) of about 200 to about 700, said TDI distillation residue being obtained from the distillation of the product of phosgenating toluene diamine to the corresponding toluene diisocyanate and having a toluene diisocyanate content of about 30% to about 70% by weight; and, optionally, an additional compound reactive with said organic polyisocyanate.
Claim 11
Dependent Claim
101 words
A process for preparing a polyurethane foam from a reaction mixture which comprises reacting an organic polyisocyanate; a foaming agent; a reaction catalyst; and an isocyanate-reactive compound prepared by reacting TDI distillation residue with a polyol in such proportions as to obtain a reaction product having an OH-number (mg KOH/g) of about 200 to about 700, said TDI distillation residue being obtained from the distillation of the product of phosgenating toluene diamine to the corresponding toluene diisocyanate and having a toluene diisocyanate content of about 30% to about 70% by weight; and, optionally, an additional compound reactive with said organic polyisocyanate.
Claim 12
Dependent Claim
35 words
The process of claim 9, wherein said TDI distillation residue and said polyol are employed in such proportions as to obtain a reaction product having an OH-number (mg KOH/g) of about 250 to about 600.
Claim 13
Dependent Claim
26 words
The process of claim 9, wherein said reaction between said TDI distillation residue and said polyol is carried out in the presence of an organic solvent.
Claim 14
Dependent Claim
28 words
The process of claim 9, wherein said polyol has a molecular weight from about 62 to about 7,000 and an average functionality from about 2 to about 4.
Claim 15
Dependent Claim
18 words
The process of claim 12, wherein said polyol has a molecular weight from about 106 to about 3,000.
Claim 16
Dependent Claim
24 words
The process of claim 13, wherein said polyol is selected from the group consisting of diethylene glycol, triethylene glycol, tetraethylene glycol and dipropylene glycol.
Claim 17
Dependent Claim
11 words
A polyurethane foam prepared according to the process of claim 9.
Claim 18
Dependent Claim
11 words
A polyurethane foam prepared according to the process of claim 14.
Claim 19
Dependent Claim
97 words
A process for preparing a polyurethane composition from a reaction mixture which comprises: reacting an organic polyisocyanate; a reaction catalyst; and an isocyanate-reactive compound prepared by reacting TDI distillation residue with a polyol in such proportions as to obtain a reaction product having an OH-number (mg KOH/g) of about 200 to about 700, said TDI distillation residue being obtained from the distillation of the product of phosgenating toluene diamine to the corresponding toluene diisocyanate and having a toluene diisocyanate of about 30% to about 70% by weight; and, optionally, an additional compound reactive with said organic polyisocyanate.
Claim 20
Dependent Claim
97 words
A process for preparing a polyurethane composition from a reaction mixture which comprises: reacting an organic polyisocyanate; a reaction catalyst; and an isocyanate-reactive compound prepared by reacting TDI distillation residue with a polyol in such proportions as to obtain a reaction product having an OH-number (mg KOH/g) of about 200 to about 700, said TDI distillation residue being obtained from the distillation of the product of phosgenating toluene diamine to the corresponding toluene diisocyanate and having a toluene diisocyanate of about 30% to about 70% by weight; and, optionally, an additional compound reactive with said organic polyisocyanate.
Claim 21
Dependent Claim
112 words
A process for preparing a polyurethane composition from a reaction mixture which comprises: reacting an organic polyisocyanate; a reaction catalyst; and an isocyanate-reactive compound prepared by reacting TDI distillation residue with a polyol in such proportions as to obtain a reaction product having an OH-number (mg KOH/g) of about 250 to about 600, said TDI distillation residue being obtained from the distillation of the product of phosgenating toluene diamine to the corresponding toluene diisocyanate and having a toluene diisocyanate content of about 30% to about 70% by weight, and wherein said reaction is carried out in the presence of an organic solvent; and, optionally, an additional compound reactive with said organic polyisocyanate.
Claim 22
Dependent Claim
112 words
A process for preparing a polyurethane composition from a reaction mixture which comprises: reacting an organic polyisocyanate; a reaction catalyst; and an isocyanate-reactive compound prepared by reacting TDI distillation residue with a polyol in such proportions as to obtain a reaction product having an OH-number (mg KOH/g) of about 250 to about 600, said TDI distillation residue being obtained from the distillation of the product of phosgenating toluene diamine to the corresponding toluene diisocyanate and having a toluene diisocyanate content of about 30% to about 70% by weight, and wherein said reaction is carried out in the presence of an organic solvent; and, optionally, an additional compound reactive with said organic polyisocyanate.
Claim 23
Dependent Claim
11 words
A polyurethane composition prepared according to the process of claim 17.
Claim 24
Dependent Claim
11 words
A polyurethane composition prepared according to the process of claim 18.
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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) | 1987-12-18 | 1988-06-18 | 1988-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-12-18 | 1992-06-18 | 1992-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-12-18 | 1996-06-18 | 1996-12-18 | $7700.00 | Window Closed / Lapsed |