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US5085015A
Expired / Lapsed
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Process for improving the surface of liquid crystal polymers
Assignee: Ticona LLC
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Filing: 1990-06-26
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Granted: 1992-02-04
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Expires: 2010-06-26
Abstract
Abstract Surfaces of articles molded from unfilled or lightly filled liquid crystal polymers have a tendency to peel away when subjected to even slight rubbing. Such surfaces are improved by subjecting them to abrasion to remove at least 0.01 mm of surface thickness, whereby they acquire a smooth matte finish and are no longer susceptible to peeling.
Inventors
- 👤 David F. Adcock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:27
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/38; H05K3/381; B; B29; B29C; B29C59/00; B29C59/02; H05K1/00; H05K1/02; H05K1/03; H05K1/0313; B29K; B29K2105/00; B29K2105/0079; B29K2995/00; B29K2995/0018; B29K2995/0024; H05K1/0353; H05K1/0373; H05K2201/00; H05K2201/01; H05K2201/0137; H05K2201/0141; H05K2201/02; H05K2201/0203; H05K2201/0206; H05K2201/0209; H05K2203/00; H05K2203/02; H05K2203/025
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
83 words
A process for improving the surface of an article melt fabricated from a composition consisting essentially of a liquid crystal polymer and 0 to about 5 weight percent of filler, based on the weight of the liquid crystal polymer, wherein the surface to be improved, which is initially susceptible to peeling, is subjected to abrasion so as to remove at least about 0.01 mm of the surface thickness, whereby the surface acquires a smooth, matte finish and is no longer susceptible to peeling.
Claim 2
Dependent Claim
83 words
A process for improving the surface of an article melt fabricated from a composition consisting essentially of a liquid crystal polymer and 0 to about 5 weight percent of filler, based on the weight of the liquid crystal polymer, wherein the surface to be improved, which is initially susceptible to peeling, is subjected to abrasion so as to remove at least about 0.01 mm of the surface thickness, whereby the surface acquires a smooth, matte finish and is no longer susceptible to peeling.
Claim 3
Dependent Claim
17 words
The process of claim 1 wherein the surface thickness removed by abrasion is at least 0.025 mm.
Claim 4
Dependent Claim
17 words
The process of claim 1 wherein the surface thickness removed by abrasion is at least 0.05 mm.
Claim 5
Dependent Claim
13 words
The process of claim 1 which is accomplished by blasting with abrasive particles.
Claim 6
Dependent Claim
13 words
The process of claim 2 which is accomplished by blasting with abrasive particles.
Claim 7
Dependent Claim
19 words
The process of claim 4 where the abrasive particles have an average size of about 0.297 to 0.074 mm.
Claim 8
Dependent Claim
19 words
The process of claim 5 where the abrasive particles have an average size of about 0.297 to 0.074 mm.
Claim 9
Dependent Claim
16 words
The process of claim 6 where the abrasive particles have an average size of 0.210-0.149 mm.
Claim 10
Dependent Claim
16 words
The process of claim 7 where the abrasive particles have an average size of 0.210-0.149 mm.
Claim 11
Dependent Claim
29 words
The process of claim 1 wherein the article is the substrate to which a conductive coating is to be applied, the coated substrate to serve as an electronic component.
Claim 12
Dependent Claim
29 words
The process of claim 2 wherein the article is the substrate to which a conductive coating is to be applied, the coated substrate to serve as an electronic component.
Claim 13
Dependent Claim
13 words
The process of claim 10 wherein the electronic component is a circuit board.
Claim 14
Dependent Claim
13 words
The process of claim 11 wherein the electronic component is a circuit board.
Claim 15
Dependent Claim
32 words
The process of claim 4 wherein the liquid crystal polymer article is the substrate to which a conductive coating is to be applied, the coated substrate to serve as an electronic component.
Claim 16
Dependent Claim
29 words
The process of claim 5 wherein the article is the substrate to which a conductive coating is to be applied, the coated substrate to serve as an electronic component.
Claim 17
Dependent Claim
13 words
The process of claim 14 wherein the electronic component is a circuit board.
Claim 18
Dependent Claim
13 words
The process of claim 15 wherein the electronic component is a circuit board.
References Cited (Backward Citations)
US3549398A
Cited
US4343838A
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US4232059A
Cited
US4738056A
Cited
US4735679A
Cited
JPH01294875A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-02-03 | 1995-08-05 | 1996-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-02-03 | 1999-08-05 | 2000-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-02-03 | 2003-08-05 | 2004-02-04 | $7700.00 | Window Closed / Lapsed |