Patent US4560580A successfully refreshed from Google Patents.
US4560580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for encapsulating articles with optional laser printing
Assignee: Phillips Petroleum Co
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Filing: 1984-03-19
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Granted: 1985-12-24
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Expires: 2004-03-19
Abstract
Abstract Articles, such as electrical circuits or elements, are encapsulated by melting polyarylene sulfide in combination with at least one print compound such as monazo-nickel complex, lead chromate-lead molybdate, quinacridone, Ni--Sb--Ti, Co--Zn--SiO 2 or lead chromate, injecting this molten composition around the article to be encapsulated, and cooling and solidifying the molten composition. The articles may latter be laser printed.
Inventors
- 👤 Donald G. Needham
- 👤 John E. Leland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:40
CPC Classifications
H; H10; H10W; H10W74/00; H10W74/40; H10W74/47; H10W74/473; B; B41; B41M; B41M5/00; B41M5/26; B41M5/267; C; C08; C08K; C08K3/00; C08K3/18; C08K3/20; C08K3/22; C08K3/24; C08K3/34; C08K5/00; C08K5/0091; C08K5/16; C08K5/34; C08K5/3412; C08K5/3432; C08K5/3437
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
67 words
Process to encapsulate articles comprising (a) melting a composition comprising polyarylene sulfide and at least one print compound selected from the group consisting of monoazo-nickel complex lead chromate-lead molybdate quinacridone nickel-antimony-titanium cobalt-zinc-silica and lead chromate (b) injecting the so molten composition around the article to be encapsulated, (c) cooling the composition surrounding the article to be encapsulated, and solidifying said molten composition to form said encapsulated article.
Claim 2
Dependent Claim
67 words
Process to encapsulate articles comprising (a) melting a composition comprising polyarylene sulfide and at least one print compound selected from the group consisting of monoazo-nickel complex lead chromate-lead molybdate quinacridone nickel-antimony-titanium cobalt-zinc-silica and lead chromate (b) injecting the so molten composition around the article to be encapsulated, (c) cooling the composition surrounding the article to be encapsulated, and solidifying said molten composition to form said encapsulated article.
Claim 3
Dependent Claim
38 words
Process in accordance with claim 1 wherein said article is selected from the group consisting of electrical circuits and elements and wherein the electrical connector or connectors of said article are protected from being covered with said composition.
Claim 4
Dependent Claim
25 words
A process in accordance with claim 1 comprising arranging said article inside of an injection mold and injecting said molten composition into said injection mold.
Claim 5
Dependent Claim
41 words
Process in accordance with claim 1 further comprising subjecting the surface of the solidified encapsulating material to a pattern of laser light irradiation such as to modify the surface of the composition in all the areas exposed to said laser light.
Claim 6
Dependent Claim
27 words
Process in accordance with claim 4 wherein said laser light irradiation is carried out for a time sufficient to generate a pattern legible for the human eye.
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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) | 1988-12-23 | 1989-06-24 | 1989-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-12-23 | 1993-06-24 | 1993-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-12-23 | 1997-06-24 | 1997-12-24 | $7700.00 | Window Closed / Lapsed |