US4689378A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stable imide-containing composition from diamino phenyl indane-bis-maleimide and alkenyl phenol
Assignee: Huntsman Advanced Materials Americas LLC
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Filing: 1985-12-16
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Granted: 1987-08-25
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Expires: 2005-12-16
Abstract
Abstract Imide-containing mixture and prepolymer compositions resulting from the combination of diaminophenylindane-bis-maleimide together with amines, alkenyl phenols, alkenyl phenol ethers or mixtures thereof, said compositions being heat curable and suitable for the preparation of prepregs, composites, adhesives, molded articles, coatings, and the like.
Inventors
- 👤 Mohammad A. Chaudhari
- 👤 John J. King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:24
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/02; C07; C07D; C07D207/00; C07D207/02; C07D207/44; C07D207/444; C07D207/448; C08G73/00; C08G73/06; C08G73/10; C08G73/12; C08J; C08J5/00; C08J5/24; C08J5/249; C08J2379/00; C08J2379/04; C08J2379/08; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31721; Y10T428/31855
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
26 words
A heat curable composition comprising the mixture or prepolymer reaction product of (a) diaminophenylindane-bis-maleimide, and (b) an alkenyl phenol, an alkenyl phenol ether or mixtures thereof.
Claim 2
Dependent Claim
26 words
A heat curable composition comprising the mixture or prepolymer reaction product of (a) diaminophenylindane-bis-maleimide, and (b) an alkenyl phenol, an alkenyl phenol ether or mixtures thereof.
Claim 3
Dependent Claim
8 words
The composition of claim 1 as a mixture.
Claim 4
Dependent Claim
10 words
The composition of claim 1 as a prepolymer reaction product.
Claim 5
Dependent Claim
24 words
The composition of claim 1, wherein component (b) is present in a concentration of from 0.05 to 2.0 moles per mole of component (a).
Claim 6
Dependent Claim
15 words
The composition of claim 4, wherein components (a) and (b) are present in equimolar amounts.
Claim 7
Dependent Claim
178 words
The composition of claim 1, wherein component (b) is an alkenyl phenol corresponding to the formulae ##STR7## wherein R 1 represents a direct bond, or R 1 is methylene, isopropylidene, --O--, --S--, --SO-- or --SO 2 --; and R 4 , R 5 , R 6 and R 7 are independently hydrogen or C 2 -C 10 alkenyl, with the proviso that at least one of R 4 -R 7 is an alkenyl group; ##STR8## wherein R 4 , R 5 and R 6 are independently hydrogen or C 2 -C 10 alkenyl, with the proviso that at least one of R 4 -R 6 is alkenyl; and ##STR9## wherein R 8 , R 9 , R 10 , R 11 , R 12 and R 13 are independently hydrogen, C 1 -C 4 alkyl or C 2 -C 10 alkenyl, with the proviso that at least one of R 8 -R 13 is alkenyl; or the ethers thereof containing at least one --OR 3 radical wherein R 3 is C 1 -C 10 alkyl, aryl or alkenyl.
Claim 8
Dependent Claim
13 words
The composition of claim 6, wherein said alkenyl group is allyl or propenyl.
Claim 9
Dependent Claim
12 words
The composition of claim 7, wherein said alkenyl phenol is o,o'-diallyl-bisphenol A.
Claim 10
Dependent Claim
10 words
The product obtained by curing the mixture of claim 2.
Claim 11
Dependent Claim
12 words
The product obtained by curing the prepolymer reaction product of claim 3.
Claim 12
Dependent Claim
18 words
The laminate structure comprising the cured product of a wound yarn impregnated with the mixture of claim 2.
Claim 13
Dependent Claim
20 words
A laminate structure comprising the cured product of a wound yarn impregnated with the prepolymer reaction product of claim 3.
References Cited (Backward Citations)
US4100140A
Cited
US4288583A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-08-24 | 1991-02-23 | 1991-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-08-24 | 1995-02-23 | 1995-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-08-24 | 1999-02-23 | 1999-08-25 | $7700.00 | Window Closed / Lapsed |