US5025080A
Expired / Lapsed
US
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Resin composition from di(arylcyclobutenealkyl) ether of di(hydroxyphenyl) oligomer
Assignee: Resolution Performance Products LLC
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Filing: 1990-03-30
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Granted: 1991-06-18
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Expires: 2010-03-30
Abstract
Abstract Improved toughness is demonstrated by cured resin compositions produced by heating a curable resin composition comprising (1) an arylcyclobutenealkyl ether of a di(hydroxyphenyl) oligomer, (2) a bismalemide and (3) a di(cyanatophenyl) oligomer.
Inventors
- 👤 Puk K. Wong
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:22
CPC Classifications
C; C08; C08G; C08G73/00; C08G73/06; C08G73/10; C08G73/12; C08G73/125; C08G61/00; C08G61/12; C08G73/126; C08G73/127
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
96 words
A curable resin composition comprising an organic dicyanate, a bismaleimide and a di(arylcyclobutenealkyl) ether of di(hydroxyphenyl) oligmer of the formula ##STR8## wherein Ar is an aromatic ring system of up to 4 aromatic rings and up to 30 carbon atoms inclusive connected to R from a carbon atom of a six-membered ring, R is alkylene of up to 4 carbon atoms inclusive, X is a direct valence bond or X is alkylene of up to 8 carbon atoms inclusive, oxy, thio, sulfonyl, carbonyl or carbonato and n is an average number from 0 to about 20.
Claim 2
Dependent Claim
96 words
A curable resin composition comprising an organic dicyanate, a bismaleimide and a di(arylcyclobutenealkyl) ether of di(hydroxyphenyl) oligmer of the formula ##STR8## wherein Ar is an aromatic ring system of up to 4 aromatic rings and up to 30 carbon atoms inclusive connected to R from a carbon atom of a six-membered ring, R is alkylene of up to 4 carbon atoms inclusive, X is a direct valence bond or X is alkylene of up to 8 carbon atoms inclusive, oxy, thio, sulfonyl, carbonyl or carbonato and n is an average number from 0 to about 20.
Claim 3
Dependent Claim
14 words
The resin composition of claim 1 wherein the di(arylcyclobutenealkyl) ether is a di(benzocyclobutenealkyl) ether.
Claim 4
Dependent Claim
46 words
The resin composition of claim 2 wherein the bismaleimide is the dismaleimide of the formula ##STR9## wherein X is a direct valence bond or X is alkylene of up to 8 carbon atoms inclusive, oxy, thio, sulfonyl, carbonyl or carbonato and m is zero or 1.
Claim 5
Dependent Claim
50 words
The resin composition of claim 3 wherein the dicyanato compound is represented by the formula ##STR10## wherein n is an average number from 0 to 20 and X is a direct valence bond or X is alkylene of up to 8 carbon atoms inclusive, oxy, thio, sulfonyl, carbonyl or carbonato.
Claim 6
Dependent Claim
15 words
The resin composition of claim 4 wherein the ether is represented by the formula ##STR11##
Claim 7
Dependent Claim
30 words
The resin composition of claim 5 wherein the ether is present in a quantity of from about 20% by weight to about 60% by weight based on total resin composition.
Claim 8
Dependent Claim
29 words
The resin composition of claim 6 wherein the bismaleimide is present in a quantity from about 5% by weight to about 35% by weight based on total resin composition.
Claim 9
Dependent Claim
29 words
The resin composition of claim 7 wherein the dicyanate is present in a quantity from about 40% by weight to about 60% by weight based on total resin composition.
Claim 10
Dependent Claim
11 words
The resin composition of claim 8 wherein the bismaleimide is bis(4-maleimidophenyl)methane.
Claim 11
Dependent Claim
12 words
The resin composition of claim 9 wherein the dicyanate compound is 2,2-di(4-cyanatophenyl)propane.
Claim 12
Dependent Claim
15 words
The resin composition of claim 10 wherein the ether is the di(4-benzocyclobutenemethyl) ether of 2,2-di(4-hydroxyphenyl)propane.
Claim 13
Dependent Claim
15 words
The resin composition of claim 10 wherein the ether is the di(4-benzocyclobutenemethyl ether of ##STR12##
Claim 14
Dependent Claim
19 words
The cured resin composition produced by heating the composition of claim 1 to a temperature above about 180° C.
Claim 15
Dependent Claim
19 words
The cured resin composition produced by heating the composition of claim 11 to a temperature above about 180° C.
Claim 16
Dependent Claim
19 words
The cured resin composition produced by heating the composition of claim 12 to a temperature above about 180° C.
References Cited (Backward Citations)
US4540763A
Cited
US4730030A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-06-17 | 1994-12-17 | 1995-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-06-17 | 1998-12-17 | 1999-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-06-17 | 2002-12-17 | 2003-06-18 | $7700.00 | Window Closed / Lapsed |