Patent US2383894A successfully refreshed from Google Patents.
Patent US5190807A successfully refreshed from Google Patents.
US5190807A
Expired / Lapsed
US
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Abrasion wear resistant polymeric substrate product
Assignee: Morgan Advanced Ceramics Inc
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Filing: 1990-10-18
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Granted: 1993-03-02
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Expires: 2010-10-18
Abstract
Abstract A substantially optically transparent coated substrate product with a highly adherent, abrasion-resistant diamond-like hard carbon coating is disclosed. The substrate product is comprised of a polymeric substrate, an adhesion-mediating polysiloxane polymer layer, one or more intermediate layers and an outer layer of diamond-like hard carbon. In another embodiment of the invention a thin metallic interlayer is disposed between a first interlayer layer and subsequent interlayers and/or diamond-like hard carbon. The invention also allows for the production of adherent thin film interference layer coatings (i.e. quarter wavelength stacks and anti-reflection coatings) using diamond-like hard carbon as the high refractive index layer and the interlayer(s) as the low refractive index layer or, alternatively, using diamond-like hard carbon as the low refractive index layer and the interlayer(s) as the high refractive index layer. The invention further discloses a method for fabricating the coated substrate product. The substrate product, exhibiting excellent resistance to abrasion and chemical attack, is particularly useful for commercial plastic articles such as optical lenses and sunglass lenses made of polycarbonate, CR-39 TM , or acrylic plastics.
Inventors
- 👤 Fred M. Kimock
- 👤 Bradley J. Knapp
- 👤 Steven J. Finke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:43
CPC Classifications
C; C23; C23C; C23C16/00; C23C16/006; C23C16/02; C23C16/0272; C23C16/22; C23C16/26; G02B1/105; G; G02; G02B; G02B1/00; G02B1/10; G02B1/11; G02B1/111; G02B1/14; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/2495; Y10T428/24967; Y10T428/24975; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265; Y10T428/30; Y10T428/31504; Y10T428/31652; Y10T428/31663; Y10T428/31678
Claims Analysis
Total Claims: 57
Claim 1
Independent Claim
135 words
A coated substrate product comprised of a substantially optically transparent polymeric substrate and a first composite layer, said first composite layer comprising a substantially optically transparent adhesion-mediating layer at least 3 microns thick bonded to and disposed towards said substrate of a polysiloxane polymer having a high elasticity and capable of forming a strong chemical bond to said polymeric substrate, a chemically vapor deposit first interlayer bonded to and disposed immediately adjacent to said adhesion-mediating layer of a substantially optically transparent material devoid of alkali metal atoms and fluorine, and a chemically vapor deposited first layer of substantially optically transparent diamond-like carbon bonded to and disposed immediately adjacent to said first interlayer and away from said substrate, said first interlayer being capable of forming a strong chemical bond to said adhesion-mediating layer and diamond-like carbon.
Claim 2
Dependent Claim
135 words
A coated substrate product comprised of a substantially optically transparent polymeric substrate and a first composite layer, said first composite layer comprising a substantially optically transparent adhesion-mediating layer at least 3 microns thick bonded to and disposed towards said substrate of a polysiloxane polymer having a high elasticity and capable of forming a strong chemical bond to said polymeric substrate, a chemically vapor deposit first interlayer bonded to and disposed immediately adjacent to said adhesion-mediating layer of a substantially optically transparent material devoid of alkali metal atoms and fluorine, and a chemically vapor deposited first layer of substantially optically transparent diamond-like carbon bonded to and disposed immediately adjacent to said first interlayer and away from said substrate, said first interlayer being capable of forming a strong chemical bond to said adhesion-mediating layer and diamond-like carbon.
Claim 3
Dependent Claim
17 words
The product of claim 1 wherein said first diamond-like carbon layer is at least 200 Å thick.
Claim 4
Dependent Claim
66 words
The product of claim 1 wherein said first interlayer comprises a substantially optically transparent material selected from the group consisting of silicon nitride, titanium nitride, tantalum nitride, tungsten nitride, molybdenum nitride, hafnium nitride, zirconium nitride, boron nitride, silicon oxide, silicon dioxide, yttrium oxide, germanium oxide, hafnium oxide, tantalum oxide, titanium oxide, zironium oxide, tungsten oxide, molybdenum oxide, boron oxide, silicon carbide, germanium carbide and mixtures thereof.
Claim 5
Dependent Claim
15 words
The product of claim 3 wherein said first interlayer is at least 10 Å thick.
Claim 6
Dependent Claim
17 words
The product of claim 1 wherein said first interlayer comprises silicon dioxide at least 200 Å thick.
Claim 7
Dependent Claim
33 words
The product of claim 1 wherein the thickness of at least one of said first interlayer and said first diamond-like carbon layer is selected to minimize the reflection of light at predetermined wavelengths.
Claim 8
Dependent Claim
33 words
The product of claim 1 wherein the thickness of at least one of said first interlayer and said first diamond-like carbon layer is selected to maximize the reflection of light at predetermined wavelengths.
Claim 9
Dependent Claim
30 words
The product of claim 1 wherein the thickness of said first interlayer and said first diamond-like carbon layer corresponds to integer multiples of quarter wavelength optical thickness at predetermined wavelengths.
Claim 10
Dependent Claim
27 words
The product of claim 1 wherein the compressive stress of said first interlayer is less than said first diamond-like carbon layer and greater than said adhesion-mediating layer.
Claim 11
Dependent Claim
23 words
The product of claim 1 wherein said first interlayer exhibits a tensile stress and said first diamond-like carbon layer exhibits a compressive stress.
Claim 12
Dependent Claim
69 words
The product of claim 1 including at least a second composite layer bonded to and disposed immediately adjacent to said first composite layer, said second composite layer comprising a second interlayer bonded to and disposed immediately adjacent to said first diamond-like carbon layer and away from said substrate and a second diamond-like carbon layer bonded to and disposed immediately adjacent to said second interlayer and away from said substrate.
Claim 13
Dependent Claim
66 words
The product of claim 11 wherein said second interlayer comprises a substantially optically transparent material selected from the group consisting of silicon nitride, titanium nitride, tantalum nitride, tungsten nitride, molybdenum nitride, hafnium nitride, zirconium nitride, boron nitride, silicon oxide, silicon dioxide, yttrium oxide, germanium oxide, tungsten oxide, molybdenum oxide, boron oxide, hafnium oxide, tantalum oxide, titanium oxide, zirconium oxide, silicon carbide, germanium carbide and mixtures thereof.
Claim 14
Dependent Claim
18 words
The product of claim 12 wherein the thickness of said second interlayer is at least 10 Å thick.
Claim 15
Dependent Claim
17 words
The product of claim 11 wherein said second interlayer comprises silicon dioxide at lest 200 Å thick.
Claim 16
Dependent Claim
20 words
The product of claim 11 wherein the thickness of said second diamond-like carbon layer is at least 200 Å thick.
Claim 17
Dependent Claim
41 words
The product of claim 11 wherein the thickness of at least one of said first interlayer, said first diamond-like carbon layer, said second interlayer and said second diamond-like carbon layer is selected to minimize the reflection of light at predetermined wavelengths.
Claim 18
Dependent Claim
41 words
The product of claim 11 wherein the thickness of at least one of said first interlayer, said first diamond-like carbon layer, said second interlayer and said second diamond-like carbon layer is selected to maximize the reflection of light at predetermined wavelengths.
Claim 19
Dependent Claim
38 words
The product of claim 11 wherein the thickness of said first interlayer, said first diamond-like carbon layer, said second interlayer and said second diamond-like carbon layer corresponds to integer multiples of quarter wavelength optical thickness at predetermined wavelengths.
Claim 20
Dependent Claim
35 words
The product of claim 11 wherein the thickness of said first diamond-like carbon layer, said second interlayer and said second diamond-like carbon layer corresponds to integer multiples of quarter wavelength optical thickness at predetermined wavelengths.
Claim 21
Dependent Claim
21 words
The product of claim 11 wherein the compressive stress of said second interlayer is less than said second diamond-like carbon layer.
Claim 22
Dependent Claim
29 words
The product of claim 11 wherein said second interlayer exhibits a tensile stress and said first diamond-like carbon layer and said second diamond-like carbon layer exhibit a compressive stress.
Claim 23
Dependent Claim
54 words
The product of claim 1 wherein said first composite layer includes a chemically vapor deposited third interlayer bonded to and disposed between said first interlayer and said first diamond-like carbon layer of a substantially optically transparent material capable of forming a strong chemical bond to said first interlayer and said first diamond-like carbon layer.
Claim 24
Dependent Claim
124 words
The product of claim 22 wherein said first interlayer comprises a substantially optically transparent material selected from the group consisting of silicon nitride, titanium nitride, tantalum nitride, tungsten nitride, molybdenum nitride, hafnium nitride, zirconium nitride, boron nitride, silicon dioxide, silicon oxide, yttrium oxide, germanium oxide, tungsten oxide, molybdenum oxide, boron oxide, hafnium oxide, silicon oxide, silicon dioxide, tantalum oxide, titanium oxide, zirconium oxide, silicon carbide, germanium carbide, aluminum oxide, cerium oxide, tin oxide, thorium oxide, lithium oxide, sodium oxide, potassium oxide, rubidium oxide, cesium oxide, francium oxide, beryllium oxide, magnesium oxide, calcium oxide, strontium oxide, barium oxide, radium oxide, barium fluoride, cerium fluoride, magnesium fluoride, thorium fluoride, calcium fluoride, neodymium fluoride, lead fluoride, sodium fluoride, lithium fluoride, zinc selenide, zinc sulfide and mixtures thereof.
Claim 25
Dependent Claim
66 words
The product of claim 22 wherein said third interlayer comprises a substantially optically transparent material selected from the group consisting of silicon nitride, titanium nitride, tantalum nitride, hafnium nitride, tungsten nitride, molybdenum nitride, zirconium nitride, boron nitride, silicon dioxide, silicon oxide, yttrium oxide, germanium oxide, hafnium oxide, tungsten oxide, molybdenum oxide, boron oxide, tantalum oxide, titanium oxide, zirconium oxide, silicon carbide, germanium carbide, and mixtures thereof.
Claim 26
Dependent Claim
15 words
The product of claim 24 wherein said third interlayer is at least 10 Å thick.
Claim 27
Dependent Claim
17 words
The product of claim 22 wherein said third interlayer comprises silicon dioxide at least 200 Å thick.
Claim 28
Dependent Claim
37 words
The product of claim 22 wherein said third interlayer comprises a substantially optically transparent metallic material capable of reflecting visible light selected from the group consisting of silicon, germanium, hafnium, molybdenum, tungsten, yttrium, tantalum, titanium and zirconium.
Claim 29
Dependent Claim
15 words
The product of claim 27 wherein said third interlayer is at least 25 Å thick.
Claim 30
Dependent Claim
55 words
The product of claim 22 wherein said third interlayer comprises a substantially optically transparent metallic material capable of reflecting visible light selected from the group consisting of vanadium, niobium, chromium, manganese, rhenium, technetium, iron, cobalt, iridium, rhodium, nickel, palladium, platinum, copper, silver, gold, zinc, ruthenium, indium, aluminum, tin, osmium, thallium, lead, antimony, bismuth and polonium.
Claim 31
Dependent Claim
15 words
The product of claim 29 wherein said third interlayer is at least 25 Å thick.
Claim 32
Dependent Claim
36 words
The product of claim 22 wherein the thickness of at least one of said first interlayer, said third interlayer and said first diamond-like carbon layer is selected to minimize the reflection of light at predetermined wavelengths.
Claim 33
Dependent Claim
36 words
The product of claim 22 wherein the thickness of at least one of said first interlayer, said third interlayer and said first diamond-like carbon layer is selected to maximize the reflection of light at predetermined wavelengths.
Claim 34
Dependent Claim
33 words
The product of claim 22 wherein the thickness of said first interlayer, said third interlayer and said first diamond-like carbon layer corresponds to integer multiples of quarter wavelength optical thickness at predetermined wavelengths.
Claim 35
Dependent Claim
30 words
The product of claim 22 wherein the thickness of said third interlayer and said first diamond-like carbon layer corresponds to integer multiples of quarter wavelength optical thickness at predetermined wavelengths.
Claim 36
Dependent Claim
27 words
The product of claim 22 wherein the compressive stress of said third interlayer is less than said first diamond-like carbon layer and greater than said adhesion-mediating layer.
Claim 37
Dependent Claim
23 words
The product of claim 22 wherein said third interlayer exhibits a tensile stress and said first diamond-like carbon layer exhibits a compressive stress.
Claim 38
Dependent Claim
51 words
The product of claim 22 including a fourth interlayer disposed between said third interlayer and said first diamond-like carbon layer of a substantially optically transparent material devoid of alkali metal atoms and fluorine and capable of forming a strong chemical bond with said third interlayer and said first diamond-like carbon layer.
Claim 39
Dependent Claim
66 words
The product of claim 37 wherein said fourth interlayer comprises a substantially optically transparent material selected from the group consisting of silicon nitride, titanium nitride, tantalum nitride, tungsten nitride, molybdenum nitride, hafnium nitride, zirconium nitride, boron nitride, silicon dioxide, silicon oxide, yttrium oxide, germanium oxide, hafnium oxide, tantalum oxide, tungsten oxide, molybdenum oxide, boron oxide, titanium oxide, zirconium oxide, silicon carbide, germanium carbide and mixtures thereof.
Claim 40
Dependent Claim
15 words
The product of claim 38 wherein said fourth interlayer is at least 10 Å thick.
Claim 41
Dependent Claim
17 words
The product of claim 37 wherein said fourth interlayer comprises silicon dioxide at least 200 Å thick.
Claim 42
Dependent Claim
39 words
The product of claim 37 wherein the thickness of at least one of said first interlayer, said third interlayer, said fourth interlayer and said first diamond-like carbon layer is selected to minimize the reflection of light at predetermined wavelengths.
Claim 43
Dependent Claim
39 words
The product of claim 37 wherein the thickness of at least one of said first interlaYer, said third interlayer, said fourth interlayer and said first diamond-like carbon layer is selected to maximize the reflection of light at predetermined wavelengths.
Claim 44
Dependent Claim
36 words
The product of claim 37 wherein the thickness of said first interlayer, said third interlayer, said fourth interlayer and said first diamond-like carbon layer corresponds to integer multiples of quarter wavelength optical thickness at predetermined wavelengths.
Claim 45
Dependent Claim
33 words
The product of claim 37 wherein the thickness of said third interlayer, said fourth interlayer and said first diamond-like carbon layer corresponds to integer multiples of quarter wavelength optical thickness at predetermined wavelengths.
Claim 46
Dependent Claim
27 words
The product of claim 37 wherein the compressive stress of said fourth interlayer is less than said first diamond-like carbon layer and greater than said adhesion-mediating layer.
Claim 47
Dependent Claim
23 words
The product of claim 37 wherein said fourth interlayep exhibits a tensile stress and said first diamond-like carbon layer exhibits a compressive stress.
Claim 48
Dependent Claim
23 words
The product of claim 22 including at least one second composite layer bonded to and disposed immediately adjacent to said first composite layer.
Claim 49
Dependent Claim
44 words
The product of claim 47 wherein the thickness of at least one of said first interlayer, said third interlayer, said first diamond-like carbon layer, said second interlayer and said second diamond-like carbon layer is selected to minimize the reflection of light at predetermined wavelengths.
Claim 50
Dependent Claim
44 words
The product of claim 47 wherein the thickness of at least one of said first interlayer, said third interlayer, said first diamond-like carbon layer, said second interlayer and said second diamond-like carbon layer is selected to maximize the reflection of light at predetermined wavelengths.
Claim 51
Dependent Claim
41 words
The product of claim 47 wherein the thickness of said first interlayer, said third interlayer, said first diamond-like carbon layer, said second interlayer and said second diamond-like carbon layer corresponds to integer multiples of quarter wavelength optical thickness at predetermined wavelengths.
Claim 52
Dependent Claim
38 words
The product of claim 47 wherein the thickness of said third interlayer, said first diamond-like carbon layer, said second interlayer and said second diamond-like carbon layer corresponds to integer multiples of quarter wavelength optical thickness at predetermined wavelengths.
Claim 53
Dependent Claim
23 words
The product of claim 37 including at least one second composite layer bonded to and disposed immediately adjacent to said first composite layer.
Claim 54
Dependent Claim
47 words
The product of claim 52 wherein the thickness of at least one of said first interlayer, said third interlayer, said fourth interlayer, said first diamond-like carbon layer, said second interlayer and said second diamond-like carbon layer is selected to minimize the reflection of light at predetermined wavelengths.
Claim 55
Dependent Claim
47 words
The product of claim 52 wherein the thickness of at least one of said first interlayer, said third interlayer, said fourth interlayer, said first diamond-like carbon layer, said second interlayer and said second diamond-like carbon layer is selected to maximize the reflection of light at predetermined wavelengths.
Claim 56
Dependent Claim
44 words
The product of claim 52 wherein the thickness of said first interlayer, said third interlayer, said fourth interlayer, said first diamond-like carbon layer, said second interlayer and said second diamond-like carbon layer corresponds to integer multiples of quarter wavelength optical thickness at predetermined wavelengths.
Claim 57
Dependent Claim
41 words
The product of claim 52 wherein the thickness of said third interlayer, said fourth interlayer, said first diamond-like carbon layer, said second interlayer and said second diamond-like carbon layer corresponds to integer multiples of quarter wavelength optical thickness at predetermined wavelengths.
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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) | 1996-03-01 | 1996-08-31 | 1997-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-03-01 | 2000-08-31 | 2001-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-03-01 | 2004-08-31 | 2005-03-02 | $7700.00 | Window Closed / Lapsed |