US5321101A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermosetting resin and a method for producing it
Assignee: Nisshinbo Holdings Inc
•
Filing: 1991-08-30
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Granted: 1994-06-14
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Expires: 2011-08-30
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 from 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
2026-11-03 20:02
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: 32
Claim 1
Independent Claim
58 words
A thermosetting resin obtained by reacting polycarbodiimide having substantially no free isocyanate groups substantially produced from one or more organic polyisocyanates and one or more organic monoisocyanates and one or more catalysts for accelerating the carbodiimidization of isocyanate under molecular weight control with one or more crosslinking agents selected from aminotriazine, 4,4'-isopropylidene diphenol, 4,4'-diaminodiphenylmethane or a derivative thereof.
Claim 2
Dependent Claim
58 words
A thermosetting resin obtained by reacting polycarbodiimide having substantially no free isocyanate groups substantially produced from one or more organic polyisocyanates and one or more organic monoisocyanates and one or more catalysts for accelerating the carbodiimidization of isocyanate under molecular weight control with one or more crosslinking agents selected from aminotriazine, 4,4'-isopropylidene diphenol, 4,4'-diaminodiphenylmethane or a derivative thereof.
Claim 3
Dependent Claim
17 words
A thermosetting resin according to claim 1, in which said crosslinking agents are aminotriazine or its derivatives.
Claim 4
Dependent Claim
18 words
A thermosetting resin according to claim 1, in which said crosslinking agents are 4,4'-isopropylidene diphenol or its derivatives.
Claim 5
Dependent Claim
17 words
A thermosetting resin according to claim 1, in which said crosslinking agents are 4,4'-diaminodiphenylmethane or its derivatives.
Claim 6
Dependent Claim
53 words
A thermosetting resin obtained by reacting polycarbodiimide having substantially no free isocyanate groups substantially produced from one or more organic polyisocyanates and one or more monoisocyanates, by using one or more catalysts for accelerating the carbodiimidization of isocyanate under molecular weight control and one or more compounds having epoxy groups in their molecules.
Claim 7
Dependent Claim
53 words
A thermosetting resin obtained by reacting polycarbodiimide having substantially no free isocyanate groups substantially produced from one or more organic polyisocyanates and one or more monoisocyanates, by using one or more catalysts for accelerating the carbodiimidization of isocyanate under molecular weight control and one or more compounds having epoxy groups in their molecules.
Claim 8
Dependent Claim
28 words
A thermosetting resin according to claim 5, in which said compounds having epoxy groups in their molecules are mono-functional epoxy compounds, glycidyl ethers, glycidyl esters, or glycidyl amines.
Claim 9
Dependent Claim
53 words
A thermosetting resin according to claim 6 wherein said epoxy compound is epichlorohydrin, phenyl glycidyl ether, or styrene oxide; said glycidyl ether is a glycidyl ether of bisphenol or its derivatives; said glycidyl ester is a phthalic acid glycidyl ester or its derivatives; and said glycidyl amine is N-diglycidyl aniline or its derivatives.
Claim 10
Dependent Claim
95 words
A thermosetting resin having high thermal resistance obtained by reacting polycarbodiimide having substantially no free isocyanate groups and compounds capable of accelerating the trimerization reaction of carbodiimide selected from diazabicycloundecene, p-dimethylaminophenol, tris(dialkylaminoalkyl)hexahydro-s-triazine or its organic or inorganic acid salts, metal salts of an organic acid, or mixed systems of a tertiary amine and an alkylene oxide, in the presence of one or more catalysts for accelerating the carbodiimidization of isocyanate under conditions for molecular weight control, in which said polycarbodiimide is substantially produced from one or more organic polyisocyanates and one or more organic monoisocyanates.
Claim 11
Dependent Claim
95 words
A thermosetting resin having high thermal resistance obtained by reacting polycarbodiimide having substantially no free isocyanate groups and compounds capable of accelerating the trimerization reaction of carbodiimide selected from diazabicycloundecene, p-dimethylaminophenol, tris(dialkylaminoalkyl)hexahydro-s-triazine or its organic or inorganic acid salts, metal salts of an organic acid, or mixed systems of a tertiary amine and an alkylene oxide, in the presence of one or more catalysts for accelerating the carbodiimidization of isocyanate under conditions for molecular weight control, in which said polycarbodiimide is substantially produced from one or more organic polyisocyanates and one or more organic monoisocyanates.
Claim 12
Dependent Claim
32 words
A thermosetting resin according to claim 8 wherein said compounds capable of accelerating the trimerization reaction of carbodiimide react with said polycarbodiimide at a temperature above 100° C. and below 300° C.
Claim 13
Dependent Claim
29 words
A thermosetting resin according to claim 9, in which said compounds capable of accelerating the trimerization reaction of carbodiimide are the same as the trimerization catalyst of organic isocyanate.
Claim 14
Dependent Claim
29 words
A thermosetting resin according to claim 10, in which said compounds capable of accelerating the trimerization reaction of carbodiimide have at least one tertiary nitrogen atom in their molecules.
Claim 15
Dependent Claim
37 words
A thermosetting resin according to claim 10, in which said compounds capable of accelerating the trimerization reaction of carbodiimide are one or more compounds selected from diazabicycloundecene, p-dimethylaminophenol, or tris(dialkylaminoalkyl)hexahydro-s-triazine or its organic or inorganic acid salts.
Claim 16
Dependent Claim
26 words
A thermosetting resin according to claim 10, in which said compounds capable of accelerating the trimerization reaction of carbodiimide are metal salts of an organic acid.
Claim 17
Dependent Claim
23 words
A thermosetting resin according to claim 13 wherein said metal salts of an organic acid are sodium acetate, potassium acetate or sodium benzoate.
Claim 18
Dependent Claim
30 words
A thermosetting resin according to claim 10, in which said compounds capable of accelerating the trimerization reaction of carbodiimide are mixed systems of a tertiary amine and an alkylene oxide.
Claim 19
Independent Claim
80 words
A method of producing a thermosetting resin comprising the steps of substantially producing polycarbodiimide having substantially no free isocyanate groups by reaction between one or more organic polyisocyanates and one or more organic monoisocyanates in the presence of one or more catalysts for accelerating the carbodiimidization of isocyanate, mixing said polycarbodiimide with one ore more crosslinking agents selected from aminotriazine, 4,4'-isopropylidene diphenol, 4,4'-diaminodiphenylmethane or a derivative thereof, and heating this composition at a temperature from 100° C. to 300° C.
Claim 20
Independent Claim
80 words
A method of producing a thermosetting resin comprising the steps of substantially producing polycarbodiimide having substantially no free isocyanate groups by reaction between one or more organic polyisocyanates and one or more organic monoisocyanates in the presence of one or more catalysts for accelerating the carbodiimidization of isocyanate, mixing said polycarbodiimide with one ore more crosslinking agents selected from aminotriazine, 4,4'-isopropylidene diphenol, 4,4'-diaminodiphenylmethane or a derivative thereof, and heating this composition at a temperature from 100° C. to 300° C.
Claim 21
Dependent Claim
16 words
A method according to claim 16, in which said crosslinking agents are aminotriazine or its derivatives.
Claim 22
Dependent Claim
17 words
A method according to claim 16, in which said crosslinking agents are 4,4'-isopropylidene diphenol or its derivatives.
Claim 23
Dependent Claim
16 words
A method according to claim 16, in which said crosslinking agents are 4,4'-diaminodiphenylmethane or its derivatives.
Claim 24
Independent Claim
76 words
A method of producing a thermosetting resin comprising the steps of substantially producing polycarbodiimide having substantially no free isocyanate groups by reaction between one or more organic polyisocyanates and one or more organic monoisocyanates in the presence of one or more catalysts for accelerating the carbodiimidization of isocyanate, and heating a composition containing said polycarbodiimide and one or more compounds having epoxy groups in their molecules at a temperature of from 100° C. to 300° C.
Claim 25
Independent Claim
76 words
A method of producing a thermosetting resin comprising the steps of substantially producing polycarbodiimide having substantially no free isocyanate groups by reaction between one or more organic polyisocyanates and one or more organic monoisocyanates in the presence of one or more catalysts for accelerating the carbodiimidization of isocyanate, and heating a composition containing said polycarbodiimide and one or more compounds having epoxy groups in their molecules at a 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
65 words
A method of producing a thermosetting resin according to claim 20 comprising reacting polycarbodiimide substantially produced by using one or more catalysts for accelerating the carbodiimidization of isocyanate from one or more organic polyisocyanates and one or more monoisocyanates with compounds having epoxy groups in their molecules in the presence of one or more 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 22, 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
64 words
A method of producing a thermosetting resin according to claim 22 comprising the steps of heating a composition containing one or more organic polyisocyanates, one or more monoisocyanates, one or more catalysts for accelerating the carbodiimidization of isocyanate, and one or more 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
34 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, benzylmethyl amine, dimethylamino phenol, or pentaalkyldiethylene triamine.
Claim 31
Independent Claim
66 words
A method of producing a thermosetting resin comprising the steps of heating a composition including polycarbodiimide having substantially no free isocyanate groups substantially produced by using one or more catalysts for accelerating the carbodiimidization of isocyanate from one or more organic polyisocyanates and one or more organic monoisocyanates under molecular weight control, and a novolac phenolic resin at a temperature of from 100° to 300° C.
Claim 32
Independent Claim
66 words
A method of producing a thermosetting resin comprising the steps of heating a composition including polycarbodiimide having substantially no free isocyanate groups substantially produced by using one or more catalysts for accelerating the carbodiimidization of isocyanate from one or more organic polyisocyanates and one or more organic monoisocyanates under molecular weight control, and a novolac phenolic resin at a temperature of from 100° 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) | 1997-06-13 | 1997-12-13 | 1998-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-06-13 | 2001-12-13 | 2002-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-06-13 | 2005-12-13 | 2006-06-14 | $7700.00 | Window Closed / Lapsed |