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US4587162A
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US
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Resin composition and laminate produced therefrom comprising a cyclized polybutadiene and a prepolymer of a isocyanuric or cyanuric acid derivative
Assignee: Hitachi Ltd
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Filing: 1985-07-12
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Granted: 1986-05-06
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Expires: 2005-07-12
Abstract
Abstract A resin composition comprising a prepolymer of homopolymer or copolymer of isocyanuric acid derivative or cyanuric acid derivative, and a cyclized polybutadiene can give a laminate for multi-layer printed circuit boards excellent in heat resistance, dimensional stability and high-frequency electrical properties.
Inventors
- 👤 Akira Nagai
- 👤 Akio Takahashi
- 👤 Katuo Sugawara
- 👤 Masahiro Ono
- 👤 Ritsuro Tada
- 👤 Motoyo Wajima
- 👤 Toshikazu Narahara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:30
CPC Classifications
H; H05; H05K; H05K1/00; H05K1/02; H05K1/03; H05K1/0313; H05K1/032; H05K1/0346; C; C08; C08J; C08J5/00; C08J5/24; C08L; C08L15/00; C08J2339/00; C08L39/00; C08L39/04; Y; Y10; Y10T; Y10T442/00; Y10T442/30; Y10T442/3472; Y10T442/3528; Y10T442/3602; Y10T442/3667
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
56 words
A resin composition comprising a prepolymer prepared by polymerizing at least one compound of the formula: ##STR5## wherein R 1 through R 3 are independently hydrogen or an organic group, at least two of R 1 , R 2 and R 3 being organic groups having at least one polymerizable unsaturated bond, and a cyclized polybutadiene.
Claim 2
Dependent Claim
56 words
A resin composition comprising a prepolymer prepared by polymerizing at least one compound of the formula: ##STR5## wherein R 1 through R 3 are independently hydrogen or an organic group, at least two of R 1 , R 2 and R 3 being organic groups having at least one polymerizable unsaturated bond, and a cyclized polybutadiene.
Claim 3
Dependent Claim
86 words
A resin composition according to claim 1, wherein at least two of R 1 , R 2 and R 3 in the formula (I) or (II) are groups represented by the formula: --CH═CH 2 , --CH 2 --CH═CH 2 , --COCH═CH 2 , --COC(CH 3 )═CH 2 , --COOCH═CH 2 , --COOC(CH 3 )═CH 2 , --COOCH═CH 2 , --COOC(CH 3 )═CH 2 , --CH 2 CH 2 COOCH═CH 2 , --CH 2 CH 2 COOC(CH 3 )═CH 2 , or --COOCH 2 --CH═CH 2 .
Claim 4
Dependent Claim
17 words
A resin composition according to claim 1, wherein the compound of the formula (I) is triallyl isocyanurate.
Claim 5
Dependent Claim
22 words
A resin composition according to claim 1, wherein the prepolymer is a homopolymer of a compound of the formula (I) or (II).
Claim 6
Dependent Claim
66 words
A resin composition according to claim 1, wherein the prepolymer is a copolymer of at least on compound of the formula (I) or (II) and at least one compound of the formula: ##STR6## wherein R 4 and R 5 are independently hydrogen or an organic group, at least one of R 4 and R 5 being an organic group having at least one polymerizable unsaturated bond.
Claim 7
Dependent Claim
81 words
A resin composition according to claim 5, wherein at least one of R 4 and R 5 in the formula (III) is a group of the formula: --CH═CH 2 , --CH 2 --CH═CH 2 , --COCH═CH 2 , --COC(CH 3 )═CH 2 , --COOCH═CH 2 , --COOC(CH 3 )═CH 2 , --COOCH═CH 2 , --COOC(CH 3 )═CH 2 , --CH 2 CH 2 COOCH═CH 2 , --CH 2 CH 2 COOC(CH 3 )═CH 2 , or --COOCH 2 --CH═CH 2 .
Claim 8
Dependent Claim
20 words
A resin composition according to claim 5, wherein the compound of the formula (III) is diallyl phthalate, divinylbenzene or diallylbenzene.
Claim 9
Dependent Claim
14 words
A prepreg obtained by impregnating a substrate with the resin composition of claim 1.
Claim 10
Dependent Claim
28 words
A laminate produced by laminating one or more prepregs obtained by impregnating a substrate with the resin composition of claim 1, followed by curing under pressure with heating.
Claim 11
Dependent Claim
53 words
A process for producing a laminate which comprises adding a radical polymerization initiator to the resin composition of claim 1 to give a varnish, impregnating a substrate with the varnish, drying the resulting resin impregnated substrate to form a prepreg, piling two or more prepregs thus obtained, and molding under pressure with heating.
Claim 12
Dependent Claim
14 words
A prepreg obtained by impregnating a substrate with the resin composition of claim 4.
Claim 13
Dependent Claim
14 words
A prepreg obtained by impregnating a substrate with the resin composition of claim 5.
Claim 14
Dependent Claim
12 words
A laminate produced by laminating one or more prepregs of claim 11.
Claim 15
Dependent Claim
12 words
A laminate produced by laminating one or more prepregs of claim 12.
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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) | 1989-05-05 | 1989-11-04 | 1990-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-05-05 | 1993-11-04 | 1994-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-05-05 | 1997-11-04 | 1998-05-06 | $7700.00 | Window Closed / Lapsed |