Patent US2999466A successfully refreshed from Google Patents.
US4771085A
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Curable dielectric compositions
Assignee: EIDP Inc
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Filing: 1987-12-03
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Granted: 1988-09-13
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Expires: 2007-12-03
Abstract
Abstract A printable dielectric composition comprising finely divided particles of talc and/or mica dispersed in a curable liquid composition containing acrylated rubber modified epoxy resin oligomer, acrylated polydiene oligomer and alkyl acrylate.
Inventors
- 👤 Christina N. Lazaridis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:08
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/40; H01B3/44; Y; Y10; Y10S; Y10S525/00; Y10S525/922
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
59 words
A printable dielectric composition comprising: (a) 25-35% wt. finely divided particles of an inorganic adhesion agent selected from talc, mica and mixtures thereof dispersed in (b) 75-65% wt. curable liquid composition comprising: (1) 20-50% wt. acrylated diene rubber-modified epoxy resin oligomer; (2) 5-25% wt liquid elastomeric acrylated polydiene oligomer different from b-1 ; and (3) 35-75% wt. alkyl acrylate.
Claim 2
Dependent Claim
59 words
A printable dielectric composition comprising: (a) 25-35% wt. finely divided particles of an inorganic adhesion agent selected from talc, mica and mixtures thereof dispersed in (b) 75-65% wt. curable liquid composition comprising: (1) 20-50% wt. acrylated diene rubber-modified epoxy resin oligomer; (2) 5-25% wt liquid elastomeric acrylated polydiene oligomer different from b-1 ; and (3) 35-75% wt. alkyl acrylate.
Claim 3
Dependent Claim
65 words
A printable dielectric composition comprising: (a) 25-35% wt. finely divided particles of an inorganic adhesion agent selected from talc, mica and mixtures thereof dispersed in (b) 75-65% wt. curable liquid composition comprising: (1) 20-50% wt. acrylated diene rubber-modified epoxy resin oligomer; (2) 5-25% wt. liquid elastomeric acrylated polybutadiene oligomer different from b-1; (3) 30-60% wt. monofunctional alkyl acrylate; and (4) 5-15% wt. difunctional alkyl acrylate.
Claim 4
Dependent Claim
65 words
A printable dielectric composition comprising: (a) 25-35% wt. finely divided particles of an inorganic adhesion agent selected from talc, mica and mixtures thereof dispersed in (b) 75-65% wt. curable liquid composition comprising: (1) 20-50% wt. acrylated diene rubber-modified epoxy resin oligomer; (2) 5-25% wt. liquid elastomeric acrylated polybutadiene oligomer different from b-1; (3) 30-60% wt. monofunctional alkyl acrylate; and (4) 5-15% wt. difunctional alkyl acrylate.
Claim 5
Dependent Claim
30 words
The composition of claim 2 in which the proportions of the components in the curable liquid composition are: (1) 35-45% wt. (2) 7.5-15% wt. (3) 35-45% wt. (4) 7.5-15% wt.
Claim 6
Dependent Claim
13 words
The composition of claim 1 which contains up to 5% wt. inert pigment.
Claim 7
Dependent Claim
14 words
The composition of claim 1 which is UV curable and contains 0.1-10% wt. photoinitiator.
Claim 8
Dependent Claim
17 words
The composition of claim 1 in which the inorganic particles are treated with a silane coupling agent.
Claim 9
Dependent Claim
16 words
The composition of claim 1 which contains additionally 0.1-2.0% wt. by weight of a printing aid.
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) | 1991-09-13 | 1992-03-14 | 1992-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-09-13 | 1996-03-14 | 1996-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-09-13 | 2000-03-14 | 2000-09-13 | $7700.00 | Window Closed / Lapsed |