US4284730A
Expired / Lapsed
US
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Liquid carbodiimide- and uretonimine-isocyanurate-containing polyisocyanate compositions and microcellular foams made therefrom
Assignee: BASF Corp
•
Filing: 1980-02-07
•
Granted: 1981-08-18
•
Expires: 2000-02-07
Abstract
Abstract The invention relates to carbodiimide- and/or uretonimine-isocyanurate-containing polyisocyanates, to the process for their preparation, and to microcellular foams prepared therefrom. These compositions may be prepared in the presence of the appropriate catalyst by (a) a partial trimerization of a mixture of polyisocyanate and carbodiimide and uretonimine containing polyisocyanate with trimer catalyst to the desired free isocyanate level, (b) sequential, partial carbodiimidization followed by partial trimerization of a polyisocyanate to the desired free isocyanate level (c) sequential partial trimerization of a polyisocyanate followed by partial carbodiimidization, (d) simultaneous conversion using the mixed catalyst system of carbodiimide and isocyanurate catalysts reacted to the desired free isocyanate level, and (e) blending liquid polyisocyanate with the carbodiimide and uretonimine containing polyisocyanate and isocyanurate containing polyisocyanate to the desired isocyanate level.
Inventors
- 👤 Thirumurti Narayan
- 👤 Peter T. Kan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:04
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/70; C08G18/72; C08G18/77; C08G18/78; C08G18/79; C07; C07D; C07D229/00; C07D251/00; C07D251/02; C07D251/12; C07D251/26; C07D251/30; C07D251/34; C08G2110/00; C08G2110/0008; C08G2110/0025; C08G2110/0041; C08G2110/0066; C08G2110/0083; Y; Y10; Y10S; Y10S521/00; Y10S521/901; Y10S521/902
Claims Analysis
Total Claims: 65
Claim 1
Independent Claim
42 words
A highly stable liquid carbodiimide- and uretonimine-isocyanurate-containing polyisocyanate composition prepared by partially trimerizing a mixture of an organic polyisocyanate and a carbodiimide- and uretonimine-containing polyisocyanate in the presence of a catalytic amount of a trimerization catalyst followed by deactivating said trimerization catalyst.
Claim 2
Dependent Claim
42 words
A highly stable liquid carbodiimide- and uretonimine-isocyanurate-containing polyisocyanate composition prepared by partially trimerizing a mixture of an organic polyisocyanate and a carbodiimide- and uretonimine-containing polyisocyanate in the presence of a catalytic amount of a trimerization catalyst followed by deactivating said trimerization catalyst.
Claim 3
Dependent Claim
52 words
A highly stable liquid carbodiimide- and uretonimine-isocyanurate-containing polyisocyanate composition prepared by partially reacting an organic polyisocyanate in the presence of a catalytic amount of a carbodiimization catalyst followed by reacting said carbodiimide- and uretonimine-containing organic polyisocyanate in the presence of a catalytic amount of a trimerization catalyst followed by deactivating said catalysts.
Claim 4
Dependent Claim
52 words
A highly stable liquid carbodiimide- and uretonimine-isocyanurate-containing polyisocyanate composition prepared by partially reacting an organic polyisocyanate in the presence of a catalytic amount of a carbodiimization catalyst followed by reacting said carbodiimide- and uretonimine-containing organic polyisocyanate in the presence of a catalytic amount of a trimerization catalyst followed by deactivating said catalysts.
Claim 5
Dependent Claim
50 words
A highly stable liquid carbodiimide and uretonimine-isocyanurate-containing polyisocyanate composition prepared by partially reacting an organic polyisocyanate in the presence of a catalytic amount of a trimerization catalyst followed by reacting said isocyanurate-containing organic polyisocyanate in the presence of a catalytic amount of a carbodiimization catalyst followed by deactivating said catalysts.
Claim 6
Dependent Claim
50 words
A highly stable liquid carbodiimide and uretonimine-isocyanurate-containing polyisocyanate composition prepared by partially reacting an organic polyisocyanate in the presence of a catalytic amount of a trimerization catalyst followed by reacting said isocyanurate-containing organic polyisocyanate in the presence of a catalytic amount of a carbodiimization catalyst followed by deactivating said catalysts.
Claim 7
Dependent Claim
38 words
A highly stable liquid carbodiimide- and uretonimine-isocyanurate-containing polyisocyanate composition prepared by partially carbodiimidizing a mixture of an organic polyisocyanate and isocyanurate-containing polyisocyanate in the presence of a catalytic amount of a carbodiimization catalyst followed by deactivating said catalyst.
Claim 8
Dependent Claim
38 words
A highly stable liquid carbodiimide- and uretonimine-isocyanurate-containing polyisocyanate composition prepared by partially carbodiimidizing a mixture of an organic polyisocyanate and isocyanurate-containing polyisocyanate in the presence of a catalytic amount of a carbodiimization catalyst followed by deactivating said catalyst.
Claim 9
Dependent Claim
37 words
A highly stable liquid carbodiimide- and uretonimine-isocyanurate-containing polyisocyanate composition prepared by heating an organic polyisocyanate in the presence of catalytic amount of a mixture of a carbodiimization catalyst and a trimerization catalyst followed by deactivating said catalysts.
Claim 10
Dependent Claim
37 words
A highly stable liquid carbodiimide- and uretonimine-isocyanurate-containing polyisocyanate composition prepared by heating an organic polyisocyanate in the presence of catalytic amount of a mixture of a carbodiimization catalyst and a trimerization catalyst followed by deactivating said catalysts.
Claim 11
Dependent Claim
44 words
A process for the preparation of a stable liquid carbodiimide- and uretonimine-isocyanurate-containing polyisocyanate composition comprising partially trimerizing a mixture of an organic polyisocyanate and carbodiimide- and uretonimine-containing polyisocyanate in the presence of a catalytic amount of a trimerization catalyst followed by deactivating said catalyst.
Claim 12
Dependent Claim
44 words
A process for the preparation of a stable liquid carbodiimide- and uretonimine-isocyanurate-containing polyisocyanate composition comprising partially trimerizing a mixture of an organic polyisocyanate and carbodiimide- and uretonimine-containing polyisocyanate in the presence of a catalytic amount of a trimerization catalyst followed by deactivating said catalyst.
Claim 13
Dependent Claim
56 words
A process for the preparation of a stable liquid carbodiimide- and uretonimine-isocyanurate-containing polyisocyanate composition comprising partially reacting an organic polyisocyanate in the presence of a catalytic amount of a carbodiimidization catalyst followed by reacting said carbodiimide- and uretonimine-containing organic polyisocyanate in the presence of a catalytic amount of a trimerization catalyst followed by deactivating said catalysts.
Claim 14
Dependent Claim
56 words
A process for the preparation of a stable liquid carbodiimide- and uretonimine-isocyanurate-containing polyisocyanate composition comprising partially reacting an organic polyisocyanate in the presence of a catalytic amount of a carbodiimidization catalyst followed by reacting said carbodiimide- and uretonimine-containing organic polyisocyanate in the presence of a catalytic amount of a trimerization catalyst followed by deactivating said catalysts.
Claim 15
Dependent Claim
54 words
A process for the preparation of a stable liquid carbodiimide- and uretonimine-isocyanurate-containing polyisocyanate composition comprising partially trimerizing an organic polyisocyanate in the presence of a catalytic amount of a trimerization catalyst followed by reacting said isocyanurate-containing organic polyisocyanate in the presence of a catalytic amount of a carbodiimidization catalyst followed by deactivating said catalysts.
Claim 16
Dependent Claim
54 words
A process for the preparation of a stable liquid carbodiimide- and uretonimine-isocyanurate-containing polyisocyanate composition comprising partially trimerizing an organic polyisocyanate in the presence of a catalytic amount of a trimerization catalyst followed by reacting said isocyanurate-containing organic polyisocyanate in the presence of a catalytic amount of a carbodiimidization catalyst followed by deactivating said catalysts.
Claim 17
Dependent Claim
40 words
A process for the preparation of a stable liquid carbodiimide- and uretonimine-isocyanurate-containing polyisocyanate composition comprising partially carbodiimidizing a mixture of polyisocyanurate- and isocyanurate-containing polyisocyanate in the presence of a catalytic amount of a carbodiimidization catalyst followed by deactivating said catalyst.
Claim 18
Dependent Claim
40 words
A process for the preparation of a stable liquid carbodiimide- and uretonimine-isocyanurate-containing polyisocyanate composition comprising partially carbodiimidizing a mixture of polyisocyanurate- and isocyanurate-containing polyisocyanate in the presence of a catalytic amount of a carbodiimidization catalyst followed by deactivating said catalyst.
Claim 19
Dependent Claim
42 words
A process for the preparation of a stable liquid carbodiimide- and uretonimine-isocyanurate-containing polyisocyanate composition comprising heating an organic polyisocyanate in the presence of a catalytic amount of a mixture of a carbodiimidization catalyst and a trimerization catalyst followed by deactivating said catalysts.
Claim 20
Dependent Claim
42 words
A process for the preparation of a stable liquid carbodiimide- and uretonimine-isocyanurate-containing polyisocyanate composition comprising heating an organic polyisocyanate in the presence of a catalytic amount of a mixture of a carbodiimidization catalyst and a trimerization catalyst followed by deactivating said catalysts.
Claim 21
Dependent Claim
34 words
The stable liquid carbodiimide- and uretonimine-isocyanurate-containing polyisocyanate composition of claim 1 wherein the amount of unconverted organic polyisocyanate is from 50 to 99 weight percent of the original total weight of organic polyisocyanate present.
Claim 22
Dependent Claim
33 words
The stable liquid carbodiimide- and uretonimine-isocyanurate-containing polyisocyanate composition of claim 2 wherein the amount of unconverted organic polyisocyanate is from 50 to 99 percent of the original total weight of organic polyisocyanate present.
Claim 23
Dependent Claim
33 words
The stable liquid carbodiimide- and uretonimine-isocyanurate-containing polyisocyanate composition of claim 3 wherein the amount of unconverted organic polyisocyanate is from 50 to 99 percent of the original total weight of organic polyisocyanate present.
Claim 24
Dependent Claim
33 words
The stable liquid carbodiimide- and uretonimine-isocyanurate-containing polyisocyanate composition of claim 4 wherein the amount of unconverted organic polyisocyanate is from 50 to 99 percent of the original total weight of organic polyisocyanate present.
Claim 25
Dependent Claim
33 words
The stable liquid carbodiimide- and uretonimine-isocyanurate-containing polyisocyanate composition of claim 5 wherein the amount of unconverted organic polyisocyanate is from 50 to 99 percent of the original total weight of organic polyisocyanate present.
Claim 26
Dependent Claim
29 words
The stable liquid carbodiimide- and uretonimine-isocyanurate-containing polyisocyanate composition of claim 1 wherein the amount of polyisocyanurate-containing polyisocyanate is from 1 to 99 weight percent of the modified polyisocyanate content.
Claim 27
Dependent Claim
29 words
The stable liquid carbodiimide- and uretonimine-isocyanurate-containing polyisocyanate composition of claim 2 wherein the amount of polyisocyanurate-containing polyisocyanate is from 1 to 99 weight percent of the modified polyisocyanate content.
Claim 28
Dependent Claim
29 words
The stable liquid carbodiimide- and uretonimine-isocyanurate-containing polyisocyanate composition of claim 3 wherein the amount of polyisocyanurate-containing polyisocyanate is from 1 to 99 weight percent of the modified polyisocyanate content.
Claim 29
Dependent Claim
29 words
The stable liquid carbodiimide and uretonimine-isocyanurate-containing polyisocyanate composition of claim 4 wherein the amount of polyisocyanurate-containing polyisocyanate is from 1 to 99 weight percent of the modified polyisocyanate content.
Claim 30
Dependent Claim
29 words
The stable liquid carbodiimide and uretonimine-isocyanurate-containing polyisocyanate composition of claim 5 wherein the amount of polyisocyanurate-containing polyisocyanate is from 1 to 99 weight percent of the modified polyisocyanate content.
Claim 31
Dependent Claim
17 words
In the process of claim 6, the trimerization reaction temperature ranges from 25° C. to 230° C.
Claim 32
Dependent Claim
17 words
In the process of claim 7, the trimerization reaction temperature ranges from 25° C. to 230° C.
Claim 33
Dependent Claim
17 words
In the process of claim 8, the trimerization reaction temperature ranges from 25° C. to 230° C.
Claim 34
Dependent Claim
17 words
In the process of claim 9, the trimerization reaction temperature ranges from 25° C. to 230° C.
Claim 35
Dependent Claim
17 words
In the process of claim 10, the trimerization reaction temperature ranges from 25° C. to 230° C.
Claim 36
Dependent Claim
20 words
In the process of claim 6, the temperature range for the carbodiimide formation ranges from 50° C. to 250° C.
Claim 37
Dependent Claim
20 words
In the process of claim 7, the temperature range for the carbodiimide formation ranges from 50° C. to 250° C.
Claim 38
Dependent Claim
20 words
In the process of claim 8, the temperature range for the carbodiimide formation ranges from 50° C. to 250° C.
Claim 39
Dependent Claim
20 words
In the process of claim 9, the temperature range for the carbodiimide formation ranges from 50° C. to 250° C.
Claim 40
Dependent Claim
20 words
In the process of claim 10, the temperature range for the carbodiimide formation ranges from 50° C. to 250° C.
Claim 41
Dependent Claim
63 words
In a process for the manufacture of microcellular foams by the reaction of organic polyisocyanates and polyols, catalysts, cross-linking agents, surfactants, and additives, wherein the improvement comprises a highly stable organic polyisocyanate prepared by partially trimerizing a mixture of an organic polyisocyanate and carbodiimide- and uretonimine-containing polyisocyanate in the presence of a catalytic amount of a trimerization catalyst followed by deactivating said catalyst.
Claim 42
Dependent Claim
63 words
In a process for the manufacture of microcellular foams by the reaction of organic polyisocyanates and polyols, catalysts, cross-linking agents, surfactants, and additives, wherein the improvement comprises a highly stable organic polyisocyanate prepared by partially trimerizing a mixture of an organic polyisocyanate and carbodiimide- and uretonimine-containing polyisocyanate in the presence of a catalytic amount of a trimerization catalyst followed by deactivating said catalyst.
Claim 43
Dependent Claim
76 words
In a process for the manufacture of microcellular foams by the reaction of organic polyisocyanates and polyols, catalysts, cross-linking agents, surfactants, and additives, wherein the improvement comprises a highly stable organic polyisocyanate prepared by partially reacting said organic polyisocyanate in the presence of a catalytic amount of a carbodiimidization catalyst followed by reacting said and carbodiimide- and uretonimine-containing organic polyisocyanate in the presence of a catalytic amount of a trimerization catalyst followed by deactivating said catalysts.
Claim 44
Dependent Claim
76 words
In a process for the manufacture of microcellular foams by the reaction of organic polyisocyanates and polyols, catalysts, cross-linking agents, surfactants, and additives, wherein the improvement comprises a highly stable organic polyisocyanate prepared by partially reacting said organic polyisocyanate in the presence of a catalytic amount of a carbodiimidization catalyst followed by reacting said and carbodiimide- and uretonimine-containing organic polyisocyanate in the presence of a catalytic amount of a trimerization catalyst followed by deactivating said catalysts.
Claim 45
Dependent Claim
69 words
In a process for the manufacture of microcellular foams, by the reaction of organic polyisocyanates and polyols, catalysts, cross-linking agents, surfactants, and additives, wherein the improvement comprises a highly stable organic polyisocyanate prepared by partially trimerizing an organic polyisocyanate in the presence of a trimerization catalyst followed by reacting said isocyanurate-containing organic polyisocyanate in the presence of a catalytic amount of a carbodiimization catalyst followed by deactivating said catalysts.
Claim 46
Dependent Claim
69 words
In a process for the manufacture of microcellular foams, by the reaction of organic polyisocyanates and polyols, catalysts, cross-linking agents, surfactants, and additives, wherein the improvement comprises a highly stable organic polyisocyanate prepared by partially trimerizing an organic polyisocyanate in the presence of a trimerization catalyst followed by reacting said isocyanurate-containing organic polyisocyanate in the presence of a catalytic amount of a carbodiimization catalyst followed by deactivating said catalysts.
Claim 47
Dependent Claim
59 words
In a process for the manufacture of microcellular foams, by the reaction of organic polyisocyanates and polyols, catalysts, cross-linking agents, surfactants, and additives, wherein the improvement comprises a highly stable organic polyisocyanate prepared by partially carbodiimidizing a mixture of polyisocyanate- and isocyanurate-containing polyisocyanate in the presence of a catalytic amount of a carbodiimization catalyst followed by deactivating said catalyst.
Claim 48
Dependent Claim
59 words
In a process for the manufacture of microcellular foams, by the reaction of organic polyisocyanates and polyols, catalysts, cross-linking agents, surfactants, and additives, wherein the improvement comprises a highly stable organic polyisocyanate prepared by partially carbodiimidizing a mixture of polyisocyanate- and isocyanurate-containing polyisocyanate in the presence of a catalytic amount of a carbodiimization catalyst followed by deactivating said catalyst.
Claim 49
Dependent Claim
60 words
In a process for the manufacture of microcellular foams, by the reaction of organic polyisocyanates and polyols, catalysts, cross-linking agents, surfactants, and additives, wherein the improvement comprises a highly stable organic polyisocyanate prepared by heating said polyisocyanate in the presence of a catalytic amount of a mixture of a carbodiimization catalyst and a trimerization catalyst followed by deactivating said catalysts.
Claim 50
Dependent Claim
60 words
In a process for the manufacture of microcellular foams, by the reaction of organic polyisocyanates and polyols, catalysts, cross-linking agents, surfactants, and additives, wherein the improvement comprises a highly stable organic polyisocyanate prepared by heating said polyisocyanate in the presence of a catalytic amount of a mixture of a carbodiimization catalyst and a trimerization catalyst followed by deactivating said catalysts.
Claim 51
Dependent Claim
17 words
In the process of claim 31, the trimerization reaction temperature ranges from 25° C. to 230° C.
Claim 52
Dependent Claim
17 words
In the process of claim 32, the trimerization reaction temperature ranges from 25° C. to 230° C.
Claim 53
Dependent Claim
17 words
In the process of claim 33, the trimerization reaction temperature ranges from 25° C. to 230° C.
Claim 54
Dependent Claim
17 words
In the process of claim 34, the trimerization reaction temperature ranges from 25° C. to 230° C.
Claim 55
Dependent Claim
17 words
In the process of claim 35, the trimerization reaction temperature ranges from 25° C. to 230° C.
Claim 56
Dependent Claim
20 words
In the process of claim 31, the temperature range for the carbodiimide formation ranges from 50° C. to 250° C.
Claim 57
Dependent Claim
20 words
In the process of claim 32, the temperature range for the carbodiimide formation ranges from 50° C. to 250° C.
Claim 58
Dependent Claim
20 words
In the process of claim 33, the temperature range for the carbodiimide formation ranges from 50° C. to 250° C.
Claim 59
Dependent Claim
20 words
In the process of claim 34, the temperature range for the carbodiimide formation ranges from 50° C. to 250° C.
Claim 60
Dependent Claim
20 words
In the process of claim 35, the temperature range for the carbodiimide formation ranges from 50° C. to 250° C.
Claim 61
Dependent Claim
28 words
In the process of claim 31, the amount of unconverted organic polyisocyanate is from 50 to 99 weight percent of the original total weight of organic polyisocyanate present.
Claim 62
Dependent Claim
27 words
In the process of claim 32, the amount of unconverted organic polyisocyanate is from 50 to 99 percent of the original total weight of organic polyisocyanate present.
Claim 63
Dependent Claim
27 words
In the process of claim 33, the amount of unconverted organic polyisocyanate is from 50 to 99 percent of the original total weight of organic polyisocyanate present.
Claim 64
Dependent Claim
27 words
In the process of claim 34, the amount of unconverted organic polyisocyanate is from 50 to 99 percent of the original total weight of organic polyisocyanate present.
Claim 65
Dependent Claim
27 words
In the process of claim 35, the amount of unconverted organic polyisocyanate is from 50 to 99 percent of the original total weight of organic polyisocyanate present.
References Cited (Backward Citations)
US3728289A
Cited
US3723363A
Cited
GB1356851A
Cited
US3970618A
Cited
US4067820A
Cited
US4014935A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-08-17 | 1985-02-16 | 1985-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-08-17 | 1989-02-16 | 1989-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-08-17 | 1993-02-16 | 1993-08-18 | $7700.00 | Window Closed / Lapsed |