US4386167A
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Polyisocyanurate polymer containing pendant urea groups, polyol dispersions and polyurethane compositions prepared therefrom
Assignee: BASF Corp
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Filing: 1982-04-19
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Granted: 1983-05-31
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Expires: 2002-04-19
Abstract
Abstract Polyisocyanurate polymers containing pendant urea groups are prepared by polymerization of polyisocyanates in organic solvents employing appropriate trimerization catalysts and then end-capping the polyisocyanurate polymer with ammonia or ammonium hydroxide. These end-capped polyisocyanurate polymers which contain pendant urea groups are dispersed in polyols to yield fine particulate dispersions. Cellular and non-cellular urethane products prepared using these dispersions displayed improved physical properties.
Inventors
- 👤 John T. Patton, Jr.
- 👤 Thirumurti Narayan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:50
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/0061; C08G; C08G18/00; C08G18/02; C08G18/022; C08G18/06; C08G18/28; C08G18/2805; C08G18/40; C08G18/409; C08J2375/00; C08J2375/04; C08J2479/00
Claims Analysis
Total Claims: 36
Claim 1
Independent Claim
53 words
A polyisocyanurate polymer containing pendant urea groups prepared by (a) polymerizing an organic polyisocyanate in an organic solvent in the presence of an effective amount of a trimerization catalyst and an organic solvent, (b) deactivating said catalyst, and (c) reacting the residual free isocyanate groups of the polymer with ammonia or ammonium hydroxide.
Claim 2
Dependent Claim
53 words
A polyisocyanurate polymer containing pendant urea groups prepared by (a) polymerizing an organic polyisocyanate in an organic solvent in the presence of an effective amount of a trimerization catalyst and an organic solvent, (b) deactivating said catalyst, and (c) reacting the residual free isocyanate groups of the polymer with ammonia or ammonium hydroxide.
Claim 3
Dependent Claim
61 words
A polyisocyanurate polymer containing pendant urea groups prepared by (a) partially reacting an organic polyisocyanate with ammonia or ammonium hydroxide, (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 groups of the polymer with ammonia or ammonium hydroxide.
Claim 4
Dependent Claim
61 words
A polyisocyanurate polymer containing pendant urea groups prepared by (a) partially reacting an organic polyisocyanate with ammonia or ammonium hydroxide, (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 groups of the polymer with ammonia or ammonium hydroxide.
Claim 5
Dependent Claim
53 words
A polyisocyanurate polymer prepared by (a) polymerizing an organic polyisocyanate in the presence of a dispersion stabilizer compound, 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 groups of the polymer with ammonia or ammonium hydroxide.
Claim 6
Dependent Claim
53 words
A polyisocyanurate polymer prepared by (a) polymerizing an organic polyisocyanate in the presence of a dispersion stabilizer compound, 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 groups of the polymer with ammonia or ammonium hydroxide.
Claim 7
Dependent Claim
26 words
The polyisocyanurate 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 8
Dependent Claim
26 words
The polyisocyanate polymer of claim 2 prepared in the presence of an adduct of equivalent quantities of an organic polyisocyanate, and a monofunctional active hydrogen compound.
Claim 9
Dependent Claim
26 words
The 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 10
Dependent Claim
61 words
A polyisocyanurate polymer dispersion 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 groups of the polymer with ammonia or ammonium hydroxide, (d) mixing the solution with a polyol, and (e) removing the organic solvent.
Claim 11
Dependent Claim
61 words
A polyisocyanurate polymer dispersion 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 groups of the polymer with ammonia or ammonium hydroxide, (d) mixing the solution with a polyol, and (e) removing the organic solvent.
Claim 12
Dependent Claim
61 words
A polyisocyanurate polymer dispersion in a polyol prepared by (a) partially reacting an organic polyisocyanate with ammonia or ammonium hydroxide, (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 groups of the polymer with ammonia or ammonium hydroxide.
Claim 13
Dependent Claim
61 words
A polyisocyanurate polymer dispersion in a polyol prepared by (a) partially reacting an organic polyisocyanate with ammonia or ammonium hydroxide, (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 groups of the polymer with ammonia or ammonium hydroxide.
Claim 14
Dependent Claim
57 words
A polyisocyanurate polymer dispersion in a polyol prepared by (a) polymerizing an organic polyisocyanate in the presence of a dispersion stabilizer compound, 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 groups of the polymer with ammonia or ammonium hydroxide.
Claim 15
Dependent Claim
57 words
A polyisocyanurate polymer dispersion in a polyol prepared by (a) polymerizing an organic polyisocyanate in the presence of a dispersion stabilizer compound, 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 groups of the polymer with ammonia or ammonium hydroxide.
Claim 16
Dependent Claim
48 words
A process for preparing a 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 available free isocyanate groups of the polymer with ammonia or ammonium hydroxide.
Claim 17
Dependent Claim
48 words
A process for preparing a 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 available free isocyanate groups of the polymer with ammonia or ammonium hydroxide.
Claim 18
Dependent Claim
52 words
A process for preparing a polyisocyanurate polymer by (a) polymerizing an organic polyisocyanate in the presence of a dispersion stabilizer compound, 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 ammonia or ammonium hydroxide.
Claim 19
Dependent Claim
52 words
A process for preparing a polyisocyanurate polymer by (a) polymerizing an organic polyisocyanate in the presence of a dispersion stabilizer compound, 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 ammonia or ammonium hydroxide.
Claim 20
Dependent Claim
60 words
A process for preparing a polyisocyanurate polymer by (a) partially reacting an organic polyisocyanate with ammonia or ammonium hydroxide, (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 groups of the polymer with ammonia or ammonium hydroxide.
Claim 21
Dependent Claim
60 words
A process for preparing a polyisocyanurate polymer by (a) partially reacting an organic polyisocyanate with ammonia or ammonium hydroxide, (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 groups of the polymer with ammonia or ammonium hydroxide.
Claim 22
Dependent Claim
30 words
The process of claim of 10 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 23
Dependent Claim
30 words
The process of claim of 11 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 24
Dependent Claim
29 words
The process of claim 12 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 25
Dependent Claim
42 words
In a polyurethane foam prepared by the reaction of a polyol, an organic polyisocyanate, catalyst, blowing agent and optionally other additives, the improvement comprises the use of a dispersion in said polyol of the polymer prepared by the process of claim 10.
Claim 26
Dependent Claim
42 words
In a polyurethane foam prepared by the reaction of a polyol, an organic polyisocyanate, catalyst, blowing agent and optionally other additives, the improvement comprises the use of a dispersion in said polyol of the polymer prepared by the process of claim 11.
Claim 27
Dependent Claim
42 words
In a polyurethane foam prepared by the reaction of a polyol, an organic polyisocyanate, catalyst, blowing agent and optionally other additives, the improvement comprises the use of a dispersion in said polyol of the polymer prepared by the process of claim 12.
Claim 28
Dependent Claim
42 words
In a polyurethane foam prepared by the reaction of a polyol, an organic polyisocyanate, catalyst, blowing agent and optionally other additives, the improvement comprises the use of a dispersion in said polyol of the polymer prepared by the process of claim 13.
Claim 29
Dependent Claim
42 words
In a polyurethane foam prepared by the reaction of a polyol, an organic polyisocyanate, catalyst, blowing agent and optionally other additives, the improvement comprises the use of a dispersion in said polyol of the polymer prepared by the process of claim 14.
Claim 30
Dependent Claim
42 words
In a polyurethane foam prepared by the reaction of a polyol, an organic polyisocyanate, catalyst, blowing agent and optionally other additives, the improvement comprises the use of a dispersion in said polyol of the polymer prepared by the process of claim 15.
Claim 31
Dependent Claim
41 words
In a non-cellular polyurethane product prepared by the reaction of a polyol, an organic polyisocyanate, catalyst, and optionally other additives, the improvement comprises the use of a dispersion in said polyol of the polymer prepared by the process of claim 10.
Claim 32
Dependent Claim
41 words
In a non-cellular polyurethane product prepared by the reaction of a polyol, an organic polyisocyanate, catalyst, and optionally other additives, the improvement comprises the use of a dispersion in said polyol of the polymer prepared by the process of claim 11.
Claim 33
Dependent Claim
41 words
In a non-cellular polyurethane product prepared by the reaction of a polyol, an organic polyisocyanate, catalyst, and optionally other additives, the improvement comprises the use of a dispersion in said polyol of the polymer prepared by the process of claim 12.
Claim 34
Dependent Claim
41 words
In a non-cellular polyurethane product prepared by the reaction of a polyol, an organic polyisocyanate, catalyst, and optionally other additives, the improvement comprises the use of a dispersion in said polyol of the polymer prepared by the process of claim 13.
Claim 35
Dependent Claim
41 words
In a non-cellular polyurethane product prepared by the reaction of a polyol, an organic polyisocyanate, catalyst, and optionally other additives, the improvement comprises the use of a dispersion in said polyol of the polymer prepared by the process of claim 14.
Claim 36
Dependent Claim
41 words
In a non-cellular polyurethane product prepared by the reaction of a polyol, an organic polyisocyanate, catalyst, and optionally other additives, the improvement comprises the use of a dispersion in said polyol of the polymer prepared by the process of claim 15.
References Cited (Backward Citations)
US4125491A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-05-30 | 1986-11-29 | 1987-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-05-30 | 1990-11-29 | 1991-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-05-30 | 1994-11-29 | 1995-05-31 | $7700.00 | Window Closed / Lapsed |