US4359541A
Expired / Lapsed
US
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Process for the preparation of polyisocyanurate dispersions and compositions prepared therefrom
Assignee: BASF Corp
•
Filing: 1981-01-19
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Granted: 1982-11-16
•
Expires: 2001-01-19
Abstract
Abstract Polyisocyanurate polymers are prepared by polymerization of polyisocyanates in organic solvents employing trimerization catalysts. The polyisocyanates are reacted with monofunctional active hydrogen compounds prior to polymerization or subsequent to the polymerization. These polymers may be dispersed in polyols for the preparation of cellular and non-cellular polyurethane products having improved physical properties.
Inventors
- 👤 John T. Patton, Jr.
- 👤 Thirumurti Narayan
- 👤 Gerhard G. Ramlow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:17
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/0061; C08G; C08G18/00; C08G18/02; C08G18/022; C08G18/06; C08G18/28; C08G18/40; C08G18/409; C08G18/70; C08G18/72; C08G18/77; C08G18/78; C08G18/79; C08G18/791; C08L; C08L75/00; C08L75/04; C08J2375/00; C08J2375/04; C08J2479/00; Y; Y10; Y10S; Y10S521/00; Y10S521/902
Claims Analysis
Total Claims: 42
Claim 1
Independent Claim
59 words
A dispersible polisocyanurate polymer prepared by (a) partially reacting an organic polyisocyanate with a monofunctional active hydrogen compound, (b) polymerizing the product of (a) in an organic solvent in the presence of an effective amount of a trimerization catalyst, (c) deactivating said catalyst, and (d) reacting the residual free isocyanate with a monofunctional active hydrogen compound or mixtures thereof.
Claim 2
Dependent Claim
59 words
A dispersible polisocyanurate polymer prepared by (a) partially reacting an organic polyisocyanate with a monofunctional active hydrogen compound, (b) polymerizing the product of (a) in an organic solvent in the presence of an effective amount of a trimerization catalyst, (c) deactivating said catalyst, and (d) reacting the residual free isocyanate with a monofunctional active hydrogen compound or mixtures thereof.
Claim 3
Dependent Claim
27 words
The dispersible polyisocyanate polymer of claim 1 prepared in the presence of an adduct of equivalent quantities of an organic polyisocyanate, and a monofunctional active hydrogen compound.
Claim 4
Dependent Claim
60 words
A dispersible polyisocyanurate polymer prepared by (a) partially reacting an organic polyisocyanate with an amine to form a biuret, (b) polymerizing the product of (a) in an organic solvent in the presence of an effective amount of a trimerization catalyst, (c) deactivating said catalyst, and (d) reacting the residual free isocyanate with a monofunctional active hydrogen compound or mixtures thereof.
Claim 5
Dependent Claim
60 words
A dispersible polyisocyanurate polymer prepared by (a) partially reacting an organic polyisocyanate with an amine to form a biuret, (b) polymerizing the product of (a) in an organic solvent in the presence of an effective amount of a trimerization catalyst, (c) deactivating said catalyst, and (d) reacting the residual free isocyanate with a monofunctional active hydrogen compound or mixtures thereof.
Claim 6
Dependent Claim
27 words
The dispersible polyisocyanate polymer of claim 3 prepared in the presence of an adduct of equivalent quantities of an organic polyisocyanate and a monofunctional active hydrogen compound.
Claim 7
Dependent Claim
68 words
A dispersible polyisocyanurate polymer prepared in the presence of an adduct of equivalent quantities of an organic polyisocyanate, and a monofunctional active hydrogen compound, said polymer prepared by (a) polymerizing an organic polyisocyanate in an organic solvent in the presence of an effective amount of a trimerization catalyst, (b) deactivating said catalyst, and (c) reacting the residual free isocyanate with a monofunctional active hydrogen compound or mixtures thereof.
Claim 8
Dependent Claim
68 words
A dispersible polyisocyanurate polymer prepared in the presence of an adduct of equivalent quantities of an organic polyisocyanate, and a monofunctional active hydrogen compound, said polymer prepared by (a) polymerizing an organic polyisocyanate in an organic solvent in the presence of an effective amount of a trimerization catalyst, (b) deactivating said catalyst, and (c) reacting the residual free isocyanate with a monofunctional active hydrogen compound or mixtures thereof.
Claim 9
Dependent Claim
68 words
A 1 to 80 percent by weight dispersion of polyisocyanurate polymer in a polyol prepared by (a) polymerizing an organic polyisocyanate in an organic solvent in the presence of an effective amount of a trimerization catalyst, (c) deactivating said catalyst, (c) reacting the residual free isocyanate with a monofunctional active hydrogen compound or mixtures thereof, (d) mixing the solution with a polyol, and (e) removing the organic solvent.
Claim 10
Dependent Claim
68 words
A 1 to 80 percent by weight dispersion of polyisocyanurate polymer in a polyol prepared by (a) polymerizing an organic polyisocyanate in an organic solvent in the presence of an effective amount of a trimerization catalyst, (c) deactivating said catalyst, (c) reacting the residual free isocyanate with a monofunctional active hydrogen compound or mixtures thereof, (d) mixing the solution with a polyol, and (e) removing the organic solvent.
Claim 11
Dependent Claim
25 words
The polymer of claim 6 prepared in the presence of an adduct of equivalent quantities of an organic polyisocyanate, and a monofunctional active hydrogen compound.
Claim 12
Dependent Claim
62 words
A process for preparing a dispersible polisocyanurate polymer by (a) partially reacting an organic polyisocyanate with a monofunctional active hydrogen compound, (b) polymerizing the product of (a) in an organic solvent in the presence of an effective amount of a trimerization catalyst, (c) deactivating said catalyst, and (d) reacting the residual free isocyanate with a monofunctional active hydrogen compound or mixtures thereof.
Claim 13
Dependent Claim
62 words
A process for preparing a dispersible polisocyanurate polymer by (a) partially reacting an organic polyisocyanate with a monofunctional active hydrogen compound, (b) polymerizing the product of (a) in an organic solvent in the presence of an effective amount of a trimerization catalyst, (c) deactivating said catalyst, and (d) reacting the residual free isocyanate with a monofunctional active hydrogen compound or mixtures thereof.
Claim 14
Dependent Claim
29 words
The process of claim 8 wherein said polymerization is conducted in the presence of an adduct of equivalent quantities of an organic polyisocyanate, and a monofunctional active hydrogen compound.
Claim 15
Dependent Claim
36 words
In a polyurethane foam prepared by the reaction of a polyol, an organic polyisocyanate, catalyst, blowing agent and optionally other additives, the improvement comprising employing the dispersion of the process of claim 9 in said polyol.
Claim 16
Dependent Claim
36 words
In a polyurethane foam prepared by the reaction of a polyol, an organic polyisocyanate, catalyst, blowing agent and optionally other additives, the improvement comprising employing the dispersion of the process of claim 9 in said polyol.
Claim 17
Dependent Claim
35 words
In a non-cellular polyurethane product prepared by the reaction of a polyol, an organic polyisocyanate, catalyst, and optionally other additives, the improvement comprising employing the dispersion of the process of claim 9 in said polyol.
Claim 18
Dependent Claim
35 words
In a non-cellular polyurethane product prepared by the reaction of a polyol, an organic polyisocyanate, catalyst, and optionally other additives, the improvement comprising employing the dispersion of the process of claim 8 in said polyol.
Claim 19
Dependent Claim
63 words
A process for preparing a dispersible polyisocyanurate polymer by (a) partially reacting an organic polyisocyanate with an amine to form a biuret, (b) polymerizing the product of (a) in an organic solvent in the presence of an effective amount of a trimerization catalyst, (c) deactivating said catalyst, and (d) reacting the residual free isocyanate with a monofunctional active hydrogen compound or mixtures thereof.
Claim 20
Dependent Claim
63 words
A process for preparing a dispersible polyisocyanurate polymer by (a) partially reacting an organic polyisocyanate with an amine to form a biuret, (b) polymerizing the product of (a) in an organic solvent in the presence of an effective amount of a trimerization catalyst, (c) deactivating said catalyst, and (d) reacting the residual free isocyanate with a monofunctional active hydrogen compound or mixtures thereof.
Claim 21
Dependent Claim
29 words
The process of claim 14 wherein said polymerization is conducted in the presence of an adduct of equivalent quantities of an organic polyisocyanate and a monofunctional active hydrogen compound.
Claim 22
Dependent Claim
36 words
In a polyurethane foam prepared by the reaction of a polyol, an organic polyisocyanate, catalyst, blowing agent and optionally other additives, the improvement comprising employing the dispersion of the process of claim 14 in said polyol.
Claim 23
Dependent Claim
36 words
In a polyurethane foam prepared by the reaction of a polyol, an organic polyisocyanate, catalyst, blowing agent and optionally other additives, the improvement comprising employing the dispersion of the process of claim 15 in said polyol.
Claim 24
Dependent Claim
35 words
In a non-cellular polyurethane product prepared by the reaction of a polyol, an organic polyisocyanate, catalyst, and optionally other additives, the improvement comprising employing the dispersion of the process of claim 15 in said polyol.
Claim 25
Dependent Claim
35 words
In a non-cellular polyurethane product prepared by the reaction of a polyol, an organic polyisocyanate, catalyst, and optionally other additives, the improvement comprising employing the dispersion of the process of claim 14 in said polyol.
Claim 26
Dependent Claim
73 words
A process for preparing a dispersible polyisocyanurate polymer by (a) polymerizing an organic polyisocyanate in an organic solvent in the presence of an effective amount of a trimerization catalyst, (b) deactivating said catalyst, and (c) reacting the residual free isocyanate with a monofunctional active hydrogen compound or mixtures thereof, wherein said polymerization is conducted in the presence of an adduct of equivalent quantities of an organic polyisocyanate, and a monofunctional active hydrogen compound.
Claim 27
Dependent Claim
73 words
A process for preparing a dispersible polyisocyanurate polymer by (a) polymerizing an organic polyisocyanate in an organic solvent in the presence of an effective amount of a trimerization catalyst, (b) deactivating said catalyst, and (c) reacting the residual free isocyanate with a monofunctional active hydrogen compound or mixtures thereof, wherein said polymerization is conducted in the presence of an adduct of equivalent quantities of an organic polyisocyanate, and a monofunctional active hydrogen compound.
Claim 28
Dependent Claim
36 words
In a polyurethane foam prepared by the reaction of a polyol, an organic polyisocyanate, catalyst, blowing agent and optionally other additives, the improvement comprising employing the dispersion of the process of claim 20 in said polyol.
Claim 29
Dependent Claim
35 words
In a non-cellular polyurethane product prepared by the reaction of a polyol, an organic polyisocyanate, catalyst, and optionally other additives, the improvement comprising employing the dispersion of the process of claim 20 in said polyol.
Claim 30
Dependent Claim
66 words
A process for preparing a dispersion of polyisocyanurate polymer in a polyol by (a) polymerizing an organic polyisocyanate in an organic solvent in the presence of an effective amount of a trimerization catalyst, (b) deactivating said polymerization catalyst, (c) reacting the residual free isocyanate with a monofunctional active hydrogen compound or mixtures thereof, (d) mixing the solution with a polyol, and (e) removing the organic solvent.
Claim 31
Dependent Claim
66 words
A process for preparing a dispersion of polyisocyanurate polymer in a polyol by (a) polymerizing an organic polyisocyanate in an organic solvent in the presence of an effective amount of a trimerization catalyst, (b) deactivating said polymerization catalyst, (c) reacting the residual free isocyanate with a monofunctional active hydrogen compound or mixtures thereof, (d) mixing the solution with a polyol, and (e) removing the organic solvent.
Claim 32
Dependent Claim
29 words
The process of claim 23 wherein said polymerization is conducted in the presence of an adduct of equivalent quantities of an organic polyisocyanate and a monofunctional active hydrogen compound.
Claim 33
Dependent Claim
36 words
In a polyurethane foam prepared by the reaction of a polyol, an organic polyisocyanate, catalyst, blowing agent and optionally other additives, the improvement comprising employing the dispersion of the process of claim 23 in said polyol.
Claim 34
Dependent Claim
36 words
In a polyurethane foam prepared by the reaction of a polyol, an organic polyisocyanate, catalyst, blowing agent and optionally other additives, the improvement comprising employing the dispersion of the process of claim 24 in said polyol.
Claim 35
Dependent Claim
35 words
In a non-cellular polyurethane product prepared by the reaction of a polyol, an organic polyisocyanate, catalyst, and optionally other additives, the improvement comprising employing the dispersion of the process of claim 24 in said polyol.
Claim 36
Dependent Claim
35 words
In a non-cellular polyurethane product prepared by the reaction of a polyol, an organic polyisocyanate, catalyst, and optionally other additives, the improvement comprising employing the dispersion of the process of claim 23 in said polyol.
Claim 37
Dependent Claim
81 words
A 1 to 80 percent by weight dispersion of polyisocyanurate polymer in a polyol prepared by (a) partially reacting an organic polyisocyanate with a monofunctional active hydrogen compound, (b) polymerizing the product of (a) in an organic solvent in the presence of an effective amount of a trimerization catalyst, (c) deactivating said catalyst, (d) reacting the residual free isocyanate with a monofunctional active hydrogen compound or mixtures thereof, (e) mixing the solution with a polyol, and (f) removing the organic solvent.
Claim 38
Dependent Claim
81 words
A 1 to 80 percent by weight dispersion of polyisocyanurate polymer in a polyol prepared by (a) partially reacting an organic polyisocyanate with a monofunctional active hydrogen compound, (b) polymerizing the product of (a) in an organic solvent in the presence of an effective amount of a trimerization catalyst, (c) deactivating said catalyst, (d) reacting the residual free isocyanate with a monofunctional active hydrogen compound or mixtures thereof, (e) mixing the solution with a polyol, and (f) removing the organic solvent.
Claim 39
Dependent Claim
25 words
The polymer of claim 29 prepared in the presence of an adduct of equivalent quantities of an organic polyisocyanate, and a monofunctional active hydrogen compound.
Claim 40
Dependent Claim
82 words
A 1 to 80 percent by weight dispersion of polyisocyanurate polymer in a polyol prepared by (a) partially reacting an organic polyisocyanate with an amine to form a biuret, (b) polymerizing the product of (a) in an organic solvent in the presence of an effective amount of a trimerization catalyst, (c) deactivating said catalyst, (d) reacting the residual free isocyanate with a monofunctional active hydrogen compound or mixtures thereof, (e) mixing the solution with a polyol, and (f) removing the organic solvent.
Claim 41
Dependent Claim
82 words
A 1 to 80 percent by weight dispersion of polyisocyanurate polymer in a polyol prepared by (a) partially reacting an organic polyisocyanate with an amine to form a biuret, (b) polymerizing the product of (a) in an organic solvent in the presence of an effective amount of a trimerization catalyst, (c) deactivating said catalyst, (d) reacting the residual free isocyanate with a monofunctional active hydrogen compound or mixtures thereof, (e) mixing the solution with a polyol, and (f) removing the organic solvent.
Claim 42
Dependent Claim
25 words
The polymer of claim 31 prepared in the presence of an adduct of equivalent quantities of an organic polyisocyanate, and a monofunctional active hydrogen compound.
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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) | 1985-11-15 | 1986-05-17 | 1986-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-11-15 | 1990-05-17 | 1990-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-11-15 | 1994-05-17 | 1994-11-16 | $7700.00 | Window Closed / Lapsed |