US5364700A
Expired / Lapsed
US
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Prepregable resin composition and composite
Assignee: BP Corp North America Inc
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Filing: 1985-12-27
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Granted: 1994-11-15
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Expires: 2005-12-27
Abstract
Abstract Described herein are novel rubber modified bismaleimide resins and prepregable resin compositions comprising these bismaleimides and one or more liquid co-reactants and optionally, one or more other additives.
Inventors
- 👤 Linda A. Domeier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 18:15
CPC Classifications
C; C08; C08L; C08L63/00; C08F; C08F22/00; C08F22/36; C08F22/40; C08G; C08G73/00; C08G73/06; C08G73/10; C08G73/12; C08J; C08J5/00; C08J5/24; C08J5/241; C08J5/243; C08J5/249; C08J2379/00; C08J2379/04; C08J2379/08; Y; Y10; Y10S; Y10S428/00; Y10S428/902; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2918; Y10T428/2933; Y10T428/2964; Y10T428/2967; Y10T428/30
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
81 words
As a prepregable resin composition, a bismaleimide resin formulation comprised of: (a) a bismaleimide of the formula: ##STR13## wherein R is the residue of an aromatic or aliphatic diamine, (b) a liquid reactive diluent of the formula: ##STR14## wherein R' represents hydrogen, alkyl or aryl; R" represents hydrogen or methyl; X represents a bivalent radical; Q represents halogen, alkyl or alkoxy; n has a value of from 1-2 and m has a value of from 0-3; and (c) a rubber modifier.
Claim 2
Dependent Claim
81 words
As a prepregable resin composition, a bismaleimide resin formulation comprised of: (a) a bismaleimide of the formula: ##STR13## wherein R is the residue of an aromatic or aliphatic diamine, (b) a liquid reactive diluent of the formula: ##STR14## wherein R' represents hydrogen, alkyl or aryl; R" represents hydrogen or methyl; X represents a bivalent radical; Q represents halogen, alkyl or alkoxy; n has a value of from 1-2 and m has a value of from 0-3; and (c) a rubber modifier.
Claim 3
Dependent Claim
11 words
The bismaleimide resin formulation of claim 1 wherein R is: ##STR15##
Claim 4
Dependent Claim
23 words
The bismaleimide resin formulation of claim 1 wherein R is a mixture of at least two members selected from the group of: ##STR16##
Claim 5
Dependent Claim
32 words
The bismaleimide resin formulation of claim 1 wherein X represents a divalent hydrocarbon radical, R' and R" are hydrogen, n has a value of 1 and m has a value of 0.
Claim 6
Dependent Claim
14 words
The bismaleimide resin formulation of claim 1 wherein said reactive diluent is o,o'-diallylbisphenol A.
Claim 7
Dependent Claim
15 words
The bismaleimide resin formulation of claim 1 wherein said rubber modifier is a butadiene homopolymer.
Claim 8
Dependent Claim
14 words
The bismaleimide resin of claim 1 wherein said rubber modifier is a butadiene copolymer.
Claim 9
Dependent Claim
14 words
The bismaleimide resin of claim 1 wherein said rubber modifier is a butadiene/acrylonitrile copolymer.
Claim 10
Dependent Claim
14 words
The bismaleimide resin of claim 1 wherein said rubber modifier is an ethylene/acrylic copolymer.
Claim 11
Dependent Claim
17 words
The bismaleimide resin of claim 1 wherein the rubber modifier is a vinyl acetate polymer or copolymer.
Claim 12
Dependent Claim
14 words
The bismaleimide resin of claim 1 wherein said rubber modifier is a silicone rubber.
Claim 13
Dependent Claim
31 words
The prepregable resin as defined in claim 1 wherein said liquid coreactant is an unsaturated monomer or mixture of monomers containing a >C═CH 2 , --CH═CH 2 , or --CH═CH-- group.
Claim 14
Dependent Claim
14 words
The prepregable resin composition of claim 1 wherein the liquid coreactant is triallyl isocyanurate.
Claim 15
Dependent Claim
14 words
The prepregable resin composition of claim 1 wherein the liquid coreactant is ethylene glycol.
Claim 16
Dependent Claim
20 words
The prepregable resin composition of claim 1 wherein the liquid coreactant is an epoxy resin or mixture of epoxy resins.
Claim 17
Dependent Claim
23 words
The prepregable resin composition of claim 15 wherein the epoxy resin is a polyglycidyl compound derived from an aromatic polyphenol or a polyamine.
Claim 18
Dependent Claim
15 words
The prepregable resin composition of claim 15 wherein the epoxy resin is a cycloaliphatic polyepoxide.
Claim 19
Dependent Claim
14 words
The prepregable resin composition of claim 1 wherein the additive is an aromatic amine.
Claim 20
Dependent Claim
27 words
The prepregable resin composition of claim 1 wherein the liquid coreactant is an epoxy resin or mixture of epoxy resins and the additive is an aromatic diamine.
Claim 21
Dependent Claim
15 words
The prepregable resin composition of claim 1 which contains a thermoplastic polymer as an additive.
Claim 22
Dependent Claim
54 words
The prepregable resin composition of claim 20 wherein the thermoplastic polymer is selected from one or more of a poly(aryl ether), a polyhydroxyether, a polycarbonate, a polyetherimide, a poly(epsiloncaprolactone), a polyester, a polyamide, a poly(amideimide), a polyolefin, a polyethylene oxide, a polybutyl methacrylate, an impact-modified polystyrene, a polyarylate, poly(2,6-dimethylphenylene oxide) polyphenylene sulfide and polyacetals.
Claim 23
Dependent Claim
22 words
The prepregable resin composition of claim 1 which contains a free radical inhibitor, a free radical initiator, or other accelerators, or fillers.
Claim 24
Dependent Claim
28 words
The prepregable resin composition of claim 1 which contains a structural fiber selected from carbon, graphite, glass, silicon carbide, poly(benzothiazole), poly(benzimidazole), poly(benzoxazole), aluminum, titanium, boron and aromatic polyamides.
Claim 25
Dependent Claim
31 words
A composite comprising: (i) a matrix resin comprising: (a) the bismaleimide resin formulation of claim 1, (b) one or more liquid coreactants, and optionally other additives, and (ii) a structural fiber.
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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) | 1997-11-14 | 1998-05-16 | 1998-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-11-14 | 2002-05-16 | 2002-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-11-14 | 2006-05-16 | 2006-11-15 | $7700.00 | Window Closed / Lapsed |