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US4880662A
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Method and apparatus for processing UV-hardenable reaction resin compounds
Assignee: Siemens AG
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Filing: 1988-02-02
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Granted: 1989-11-14
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Expires: 2008-02-02
Abstract
Abstract UV-hardenable reaction resin compounds are irradiated in an applicator and immediately fed to an object that is to be covered. An intitial, not activated reaction resin compound is irradiated after entering an input opening in a reactor having an irradiation space, a UV-radiation source and, optionally, a reflector. Immediately thereafter the activated compound is fed to an object to be coated or to an object to be surrounded, in an open casting mold or to a closed casting mold via the exit opening, optionally via a casting canal. The method and the apparatus are particularly well suited for covering semiconductor components and for encapsulating active and passive components as well as for cementing UV-impermeable fitting parts.
Inventors
- 👤 Reiner Habrich
- 👤 Heiner Bayer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:04
CPC Classifications
B; B05; B05C; B05C9/00; B05C9/08; B05C9/10; B05D; B05D3/00; B05D3/06; B05D3/061; B05D3/062; B29; B29C; B29C35/00; B29C35/02; B29C35/08; B29C35/0805; B29C2035/0827
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
75 words
A method for coating substrates and casting molds with a resin composition comprising a UV-hardenable reaction resin compound and a photoinitiator, comprising the steps of: irradiating the UV-hardenable reaction resin composition in an applicator; adding at least one additive selected from the group consisting of flexibility agents, parting agents, adhesion promoters, anti-aging agents, dyes and pigments; and feeding the irradiated resin composition with the at least one additive immediately to a substrate or casting mold.
Claim 2
Independent Claim
75 words
A method for coating substrates and casting molds with a resin composition comprising a UV-hardenable reaction resin compound and a photoinitiator, comprising the steps of: irradiating the UV-hardenable reaction resin composition in an applicator; adding at least one additive selected from the group consisting of flexibility agents, parting agents, adhesion promoters, anti-aging agents, dyes and pigments; and feeding the irradiated resin composition with the at least one additive immediately to a substrate or casting mold.
Claim 3
Dependent Claim
21 words
A method as claimed in claim 1 wherein the methylol compounds are selected from the group consisting of phenoplasts and aminoplasts.
Claim 4
Dependent Claim
20 words
A method as claimed in claim 1, wherein a cationically or acid-hardenable reaction resin comprises the UV-hardenable reaction resin compound.
Claim 5
Dependent Claim
36 words
A method as claimed in claim 1, wherein the UV-hardenable reaction resin compounds are chosen from the group consisting of epoxy compounds, vinyl ethers, esters or aromatics, cyclic ethers or esters, methylol compounds, or mixtures thereof.
Claim 6
Dependent Claim
20 words
A method as claimed in claim 1, wherein the photoinitiator produces an acid or a cationically catalyzed reaction after irradiation.
Claim 7
Dependent Claim
25 words
A method according to claim 1, wherein the feeding step comprises the step of applying the activated resin composition over the substrate or an object.
References Cited (Backward Citations)
US4696890A
Cited
JPH06198740A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-11-13 | 1993-05-15 | 1993-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-11-13 | 1997-05-15 | 1997-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-11-13 | 2001-05-15 | 2001-11-14 | $7700.00 | Window Closed / Lapsed |