US5079326A
Expired / Lapsed
US
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Thermosetting resin and a method for producing it
Assignee: Nisshinbo Holdings Inc
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Filing: 1988-07-26
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Granted: 1992-01-07
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Expires: 2008-07-26
Abstract
Abstract The present invention relates to a thermosetting resin having high thermal resistance, high strength, flame resistance, and good processability which can be obtained by reacting polycarbodiimide substantially produced form one or more kinds of organic polyisocyanate with crosslinking agents having two or more active hydrogen groups in their molecules, one or more kinds of compounds having epoxy groups in their molecules or compounds capable of accelerating the trimerization reaction of carbodiimide, and production methods thereof.
Inventors
- 👤 Toshio Suzuki
- 👤 Teruhiko Ohnuma
- 👤 Osamu Suzuki
- 👤 Satoshi Amano
- 👤 Yasuo Imashiro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:07
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/09; C08G18/095; C08G18/003; C08G18/28; C08G18/30; C08G18/38; C08G18/3819; C08G18/3842; C08G18/3851; C08G18/40; C08G18/58; C08G18/70; C08G18/72; C08G18/77; C08G18/78; C08G18/79; C08G18/797; C08G2115/00; C08G2115/02; Y; Y10; Y10S; Y10S521/00; Y10S521/901
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
52 words
A thermosetting resin comprising the reaction product of a polycarbodiimide produced from the substantial conversion of at least one organic polyisocyanate in the presence of at least one catalyst capable of accelerating the carbodiimidization of isocyanate with at least one crosslinking agent having two or more active hydrogen groups in its molecules.
Claim 2
Dependent Claim
52 words
A thermosetting resin comprising the reaction product of a polycarbodiimide produced from the substantial conversion of at least one organic polyisocyanate in the presence of at least one catalyst capable of accelerating the carbodiimidization of isocyanate with at least one crosslinking agent having two or more active hydrogen groups in its molecules.
Claim 3
Dependent Claim
16 words
A thermosetting resin according to claim 1, in which said crosslinking agents are 2,4,6-triamino-1,3,5-striazine or 2,4-diamino-6-phenyl-1,3,5-striazine.
Claim 4
Dependent Claim
17 words
A thermosetting resin according to claim 1, in which said crosslinking agents are 4,4'-isopropylidenediphenol or its derivatives.
Claim 5
Dependent Claim
15 words
A thermosetting resin according to claim 1, in which said crosslinking agent is 4,4'-isopropylidene diphenol.
Claim 6
Dependent Claim
50 words
A thermosetting resin comprising the reaction product of a polycarbodiimide produced from the substantial conversion of at least one organic polyisocyanate in the presence of at least one catalyst capable of accelerating the carboiimidization of isocyanate with at least one compound having one or more epoxy groups in its molecules.
Claim 7
Dependent Claim
50 words
A thermosetting resin comprising the reaction product of a polycarbodiimide produced from the substantial conversion of at least one organic polyisocyanate in the presence of at least one catalyst capable of accelerating the carboiimidization of isocyanate with at least one compound having one or more epoxy groups in its molecules.
Claim 8
Dependent Claim
25 words
A thermosetting resin according to claim 5, in which said compound having epoxy groups in its molecules are glycidyl ethers, glycidyl esters, or glycidyl amines.
Claim 9
Dependent Claim
53 words
A thermosetting resin having high thermal resistance comprising the reaction product of a polycarbodiimide produced from the substantial conversion of at least one organic polyisocyanate in the presence of at least one catalyst capable of accelerating the carbodiimidization of isocyanate with at least compound capable of accelerating the trimerization reaction of the carbodiimide.
Claim 10
Dependent Claim
53 words
A thermosetting resin having high thermal resistance comprising the reaction product of a polycarbodiimide produced from the substantial conversion of at least one organic polyisocyanate in the presence of at least one catalyst capable of accelerating the carbodiimidization of isocyanate with at least compound capable of accelerating the trimerization reaction of the carbodiimide.
Claim 11
Dependent Claim
32 words
A thermosetting resin according to claim 7 obtained by reacting polycarbodiimide with said compounds capable of accelerating the trimerization reaction of carbodiimide at a temperature above 100° C. and below 300° C.
Claim 12
Dependent Claim
31 words
A thermosetting resin according to claim 7 or 8, in which said compounds capable of accelerating the trimerization reaction of carbodiimide are the same as the trimerization catalyst of organic isocyanate.
Claim 13
Dependent Claim
29 words
A thermosetting resin according to claim 7, in which said compound capable of accelerating the trimerization reaction of carbodiimide has at least one tertiary nitrogen atom in its molecules.
Claim 14
Dependent Claim
36 words
A thermosetting resin according to claim 7, in which said compound capable of accelerating the trimerization reaction of carbodiimide is selected from the group consisting of diazabicycloundecene, tris(dialkylaminoalkyl)-hexahydro-s-triazine, organic or inorganic acid salts and mixtures thereof.
Claim 15
Dependent Claim
26 words
A thermosetting resin according to claim 9, in which said compounds capable of accelerating the trimerization reaction of carbodiimide are metal salts of an organic acid.
Claim 16
Dependent Claim
30 words
A thermosetting resin according to claim 9, in which said compounds capable of accelerating the trimerization reaction of carbodiimide are mixed systems of a tertiary amine and an alkylene oxide.
Claim 17
Independent Claim
71 words
A method of producing a thermosetting resin comprising the steps of producing polycarbodiimide by substantially converting at least one organic polyisocyanate in the presence of one or more kinds of catalyst for accelerating the carbodiimidization of isocyanate, mixing said polycarbodiimide with at least one crosslinking agent having two or more active hydrogen groups in its molecules, and heating this composition at a suitable temperature of from 100° C. to 300° C.
Claim 18
Independent Claim
71 words
A method of producing a thermosetting resin comprising the steps of producing polycarbodiimide by substantially converting at least one organic polyisocyanate in the presence of one or more kinds of catalyst for accelerating the carbodiimidization of isocyanate, mixing said polycarbodiimide with at least one crosslinking agent having two or more active hydrogen groups in its molecules, and heating this composition at a suitable temperature of from 100° C. to 300° C.
Claim 19
Dependent Claim
16 words
A method according to claim 14, in which said crosslinking agents are aminotriazine or its derivatives.
Claim 20
Dependent Claim
17 words
A method according to claim 14, in which said crosslinking agents are 4,4'-isopropylidene diphenol or its derivatives.
Claim 21
Dependent Claim
16 words
A method according to claim 14, in which said crosslinking agents are 4,4'-diaminodiphenylmethane or its derivatives.
Claim 22
Dependent Claim
15 words
A method according to claim 14, in which said crosslinking agents are 2,4,6-triamino-1,3,5-striazine or 2,4-diamino-6-phenyl-1,3,5-striazine.
Claim 23
Dependent Claim
14 words
A method according to claim 14, in which said crosslinking agent is 4,4-isopropylidene diphenol.
Claim 24
Independent Claim
77 words
A method of producing a thermosetting resin comprising the steps of producing polycarbodiimide by reacting at least one organic polyisocyanate in the presence of one or more kinds of catalyst for accelerating the carbodiimidization of isocyanate, mixing said polycarbodiimide with at least one compound having epoxy groups in its molecules, and heating said composition comprising said polycarbodiimide and said compound having epoxy groups in its molecules at a suitable temperature of from 100° C. to 300° C.
Claim 25
Independent Claim
77 words
A method of producing a thermosetting resin comprising the steps of producing polycarbodiimide by reacting at least one organic polyisocyanate in the presence of one or more kinds of catalyst for accelerating the carbodiimidization of isocyanate, mixing said polycarbodiimide with at least one compound having epoxy groups in its molecules, and heating said composition comprising said polycarbodiimide and said compound having epoxy groups in its molecules at a suitable temperature of from 100° C. to 300° C.
Claim 26
Dependent Claim
32 words
A method of producing a thermosetting resin according to claim 20, in which said compounds having epoxy groups in their molecules are mono-functional epoxy compounds, glycidyl ethers, glycidyl esters, or glycidyl amines.
Claim 27
Dependent Claim
67 words
A method of producing a thermosetting resin according to claim 20 comprising reacting polycarbodiimide substantially produced from one or more kinds of organic polyisocyanate by using one or more kinds of catalyst for accelerating the carbodiimidization of isocyanate with the compounds having epoxy groups in their molecules in the presence of one or more kinds of compounds having at least one tertiary nitrogen atom in their molecules.
Claim 28
Dependent Claim
34 words
A method of producing a thermosetting resin according to claim 20, in which said compounds having at least one tertiary nitrogen atom in their molecules are diazabicyclooctane, benzylmethyl amine, dimethylamino phenol, or pentaalkyldiethylene triamine.
Claim 29
Dependent Claim
62 words
A method of producing a thermosetting resin according to claim 20 comprising heating a composition containing one or more kinds of organic polyisocyanate, one or more kinds of catalyst for accelerating carbodiimidization of isocyanate, and one or more kinds of compounds having epoxy groups in their molecules in the presence of compounds having at least one tertiary nitrogen atom in their molecules.
Claim 30
Dependent Claim
29 words
A method of producing a thermosetting resin according to claim 20, in which said compound having epoxy groups in its molecules are glycidyl ethers, glycidyl esters, or glycidyl amines.
Claim 31
Dependent Claim
35 words
A method of producing a thermosetting resin according to claim 24, in which said compounds having at least one tertiary nitrogen atom in their molecules are diazabicyclooctane, benzyldimethyl amine, dimethyl amino phenol, or pentaalkyldiethylene triamine.
Claim 32
Independent Claim
58 words
A method of producing a thermosetting resin comprising the steps of heating a composition containing polycarbodiimide produced from the substantial conversion of at least one organic polyisocyanate in the presence of at least one catalyst capable of accelerating the carbodiimidization of isocyanate and a novolac phenolic resin at a suitable temperature of from 100° C. to 300° C.
Claim 33
Independent Claim
58 words
A method of producing a thermosetting resin comprising the steps of heating a composition containing polycarbodiimide produced from the substantial conversion of at least one organic polyisocyanate in the presence of at least one catalyst capable of accelerating the carbodiimidization of isocyanate and a novolac phenolic resin at a suitable temperature of from 100° C. to 300° C.
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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) | 1995-01-06 | 1995-07-08 | 1996-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-01-06 | 1999-07-08 | 2000-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-01-06 | 2003-07-08 | 2004-01-07 | $7700.00 | Window Closed / Lapsed |