US4885346A
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Mixture containing dicyanate or polycyanate compound, substituted bicyclo[2.]hept-5-ene-2,3-dicarboximide and thermoplastic
Assignee: Novartis Corp
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Filing: 1988-12-05
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Granted: 1989-12-05
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Expires: 2008-12-05
Abstract
Abstract Heat curable mixtures comprising (a) 5 to 95% by weight of at least one aromatic dicyanate or polycyanate compound or a prepolymer thereof, (b) 95 to 5% by weight of at least one compound of formula I or II ##STR1## or of a prepolymer of a compound of formula I or II, (c) 0 to 50% by weight, based on the sum of (a)+(b), of at least one compound of formula III ##STR2## (d) 0.1 to 50% by weight, based on the sum of (a)+(b), of at least one thermoplastic having a glass transition temperature of at least 120° C., in which formulae above R 1 , R 2 and R 3 are each independently of one another a hydrogen atom or methyl, n is 1 or 2 and m is 2 or 3, R is hydrogen or an aliphatic, cycloaliphatic or aromatic radical, R' is an aliphatic radical, m- or p-phenylene or m- or p-phenyleneoxy, and R" is an organic radical or valency m containing 2 to 30 carbon atoms, are suitable for the production of mouldings such as prepregs or composites, coatings and bonds.
Inventors
- 👤 Andreas Kramer
- 👤 Francis Perritaz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:46
CPC Classifications
C; C08; C08G; C08G73/00; C08G73/06; C08G73/10; C08G73/12; C08F; C08F212/00; C08F212/02; C08F212/32
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
267 words
A heat curable mixture comprising (a) 5 to 95% by weight of at least one aromatic dicyanate or polycyanate compound or a prepolymer thereof, (b) 95 to 5% by weight of at least one compound of formula I or II ##STR22## or of a prepolymer of a compound of formula I or II, (c) 0 to 50% by weight, based on the sum of (a)+(b), of at least one compound of formula III ##STR23## (d) 0.1 to 50% by weight, based on the sum of (a)+(b), of at least one thermoplastic having a glass transition temperature of at least 120° C., in which formulae above R 1 , R 2 and R 3 are each independently of one another a hydrogen atom or methyl, n is 1 or 2 and m is 2 or 3, R, when n is 1, is a hydrogen atom, C 1 -C 12 alkyl, C 3 -C 6 alkenyl, C 5 -C 8 cycloalkyl, C 6 -C 10 aryl or benzyl, or, when n is 2, is --C p H 2p , in which p is 2 to 20, C 6 -C 10 arylene or a group of formula IV ##STR24## wherein T is methylene, isopropylidene, CO, O, S or SO 2 , X is ##STR25## R' is --C q H 2q --, in which q is 2 to 20, --C r H 2r --O--, in which r is 2 t 6, m- or p-phenylene, m- or p-phenyleneoxy, the oxygen atom being attached to the group X and R" is an organic radical of valency m containing 2 to 30 carbon atoms.
Claim 2
Dependent Claim
267 words
A heat curable mixture comprising (a) 5 to 95% by weight of at least one aromatic dicyanate or polycyanate compound or a prepolymer thereof, (b) 95 to 5% by weight of at least one compound of formula I or II ##STR22## or of a prepolymer of a compound of formula I or II, (c) 0 to 50% by weight, based on the sum of (a)+(b), of at least one compound of formula III ##STR23## (d) 0.1 to 50% by weight, based on the sum of (a)+(b), of at least one thermoplastic having a glass transition temperature of at least 120° C., in which formulae above R 1 , R 2 and R 3 are each independently of one another a hydrogen atom or methyl, n is 1 or 2 and m is 2 or 3, R, when n is 1, is a hydrogen atom, C 1 -C 12 alkyl, C 3 -C 6 alkenyl, C 5 -C 8 cycloalkyl, C 6 -C 10 aryl or benzyl, or, when n is 2, is --C p H 2p , in which p is 2 to 20, C 6 -C 10 arylene or a group of formula IV ##STR24## wherein T is methylene, isopropylidene, CO, O, S or SO 2 , X is ##STR25## R' is --C q H 2q --, in which q is 2 to 20, --C r H 2r --O--, in which r is 2 t 6, m- or p-phenylene, m- or p-phenyleneoxy, the oxygen atom being attached to the group X and R" is an organic radical of valency m containing 2 to 30 carbon atoms.
Claim 3
Dependent Claim
53 words
A mixture according to claim 1, which contains 20 to 80% by weight of component (a), 80 to 20% by weight of component (b), 0 to 30% by weight of component (c), based on the sum of (a)+(b), and 5 to 40% by weight of component (d), based on the sum of (a)+(b).
Claim 4
Dependent Claim
24 words
A mixture according to claim 1, wherein component (a) is a dicyanate compound or a mixture of a dicyanate compound and the corresponding prepolymer.
Claim 5
Dependent Claim
82 words
A mixture according to claim 1, wherein component (b) is a compound of formula I, wherein R 1 and R 2 are each a hydrogen atom and R, if n is 1, is hydrogen, C 1 -C 8 alkyl, allyl, cylohexyl, phenyl or benzyl, or, if n is 2, is --(CH 2 ) p --, in which p is 2 to 12, m- or p-phenylene or a group of formula IV, wherein T is the methylene group, O or SO 2 .
Claim 6
Dependent Claim
46 words
A mixture according to claim 1, wherein component (b) is a compound of formula I, wherein R 1 and R 2 are each a hydrogen atom and R, when n is 1, is allyl or, when n is 2, is --(CH 2 ) 6 --, ##STR26##
Claim 7
Dependent Claim
26 words
A mixture according to claim 1, wherein component (a) is 2,2-bis(4-cyanotophenyl)propane and component (b) is N-allyl allylbicyclo[2.2.1]-hept-5-ene-2,3-dicarboximide, bis[4-allylbicyclo[2.2.1]-hept-5-ene-2,3-dicarboximidophenyl]methane or N,N'-hexamethylene-bis(allylmethylbicyclo[2.2.1]hept-5-ene-2,3-dicarboximide or a mixture of said compounds.
Claim 8
Dependent Claim
41 words
A mixture according to claim 1, wherein component (b) is a compound of formula II, wherein X is ##STR27## and R' is --(CH 2 ) q --, in which q is 2 to 4, m- or p-phenylene or m- or p-phenyleneoxy.
Claim 9
Dependent Claim
69 words
A mixture according to claim 1, wherein component (c) is a compound of formula III, wherein m is 2, R 3 is a hydrogen atom and R" is --(CH 2 ) p --, in which p is 2 to 12, m- or p-phenylene, m- or p-xylylene, 1,4-cyclohexylene, 1,4-bis(methylene)cyclohexylene, the radical of 4,4'-bicyclohexylmethane or, a radical of formula ##STR28## wherein T 1 is O, CH 2 or SO 2 .
Claim 10
Dependent Claim
25 words
A mixture according to claim 1, wherein component (d) is a thermoplastic having a glass transition temperature in the range fromn 150° to 350° C.
Claim 11
Dependent Claim
17 words
A mixture according to claim 1, wherein component (d) is a polyimide, polyether imide or polyether sulfone.
Claim 12
Dependent Claim
16 words
A moulding, coating or bond produced from a mixture as claimed in claim 1 by curing.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-12-04 | 1993-06-05 | 1993-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-12-04 | 1997-06-05 | 1997-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-12-04 | 2001-06-05 | 2001-12-05 | $7700.00 | Window Closed / Lapsed |