US4315970A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adhesion of metals to solid substrates
Assignee: Dow Silicones Corp
•
Filing: 1980-09-22
•
Granted: 1982-02-16
•
Expires: 2000-09-22
Abstract
Abstract What is disclosed is a method of improving the adhesion of thin metal coatings to various solid substrates by pretreatment of the solid substrates using organofunctional silanes or mixtures of organofunctional silanes with organosilanes and thereafter depositing metals to form films or coatings.
Inventors
- 👤 James B. McGee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:07
CPC Classifications
C; C09; C09J; C09J5/00; C09D; C09D183/00; C09D183/04; C09D4/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31507; Y10T428/31551; Y10T428/31605; Y10T428/31609; Y10T428/31612; Y10T428/31652; Y10T428/31663
Claims Analysis
Total Claims: 57
Claim 1
Independent Claim
170 words
A method of forming an adherent metal surface on a substrate by (I) treating a solid substrate with at least one organofunctionalsilane, or the partial hydrolyzates thereof, having the general formula ##STR13## or a mixture of an organofunctional silane or the partial hydrolyzates thereof with a different organosilane, or the partial hydrolyzates thereof, which has the general formula (RO).sub.b SiR".sub.4-b in which formulae R is an alkyl radical of 1-4 carbon atoms, R' is a difunctional hydrocarbon radical having from 1-12 carbon atoms or a --CH 2 CH 2 CH 2 NHCH 2 CH 2 --radical X is an --NH 2 , ##STR14## --SH, OH or Cl radical, R" is an --(R'X) radical, a and b each have a value of 2 or 3, c has a value of 0 or 1 and a+c=3; (II) drying the silane treated surface until the majority of volatile materials have been removed and thereafter, (III) vapor depositing a metal on the silane treated surface to form a thin continuous film or coating thereon.
Claim 2
Independent Claim
170 words
A method of forming an adherent metal surface on a substrate by (I) treating a solid substrate with at least one organofunctionalsilane, or the partial hydrolyzates thereof, having the general formula ##STR13## or a mixture of an organofunctional silane or the partial hydrolyzates thereof with a different organosilane, or the partial hydrolyzates thereof, which has the general formula (RO).sub.b SiR".sub.4-b in which formulae R is an alkyl radical of 1-4 carbon atoms, R' is a difunctional hydrocarbon radical having from 1-12 carbon atoms or a --CH 2 CH 2 CH 2 NHCH 2 CH 2 --radical X is an --NH 2 , ##STR14## --SH, OH or Cl radical, R" is an --(R'X) radical, a and b each have a value of 2 or 3, c has a value of 0 or 1 and a+c=3; (II) drying the silane treated surface until the majority of volatile materials have been removed and thereafter, (III) vapor depositing a metal on the silane treated surface to form a thin continuous film or coating thereon.
Claim 3
Dependent Claim
21 words
A method as claimed in claim 1 wherein the organofunctional silane is (CH 3 O) 3 Si(CH 2 ) 3 SH.
Claim 4
Dependent Claim
26 words
A method as claimed in claim 1 wherein the organofunctional silane is ##STR15## and the organosilane is (CH 3 O) 3 Si(CH 2 ) 3 SH.
Claim 5
Dependent Claim
19 words
A method as claimed in claim 3 wherein the weight ratio of the organofunctional silane to organosilane is 1:1.
Claim 6
Dependent Claim
19 words
A method as claimed in claim 1 wherein in step I, the organofunctional silane and organosilane are partial hydrolyzates.
Claim 7
Dependent Claim
29 words
A method as claimed in claim 5 wherein the partial hydrolyzates are present at 0.1 to 10 weight percent based on the weight of solvent, water and silanes present.
Claim 8
Dependent Claim
27 words
A method as claimed in claim 6 wherein the partial hydrolyzates are present at 0.5-2.5 weight percent based on the weight of solvent, water and silanes present.
Claim 9
Dependent Claim
34 words
A method as claimed in claim 1 wherein in step III, the metal deposited is selected from a group consisting of copper, nickel, tin, silver, silver solder, gold, aluminum, platinum, titanium, zinc and chrome.
Claim 10
Dependent Claim
13 words
A method as claimed in claim 8 wherein the metal deposited is silver.
Claim 11
Dependent Claim
13 words
A method as claimed in claim 8 wherein the metal deposited is aluminum.
Claim 12
Dependent Claim
13 words
A method as claimed in claim 8 wherein the metal deposited is chrome.
Claim 13
Dependent Claim
13 words
A method as claimed in claim 8 wherein the metal deposited is nickel.
Claim 14
Dependent Claim
13 words
A method as claimed in claim 8 wherein the metal deposited is copper.
Claim 15
Dependent Claim
13 words
A method as claimed in claim 8 wherein the metal deposited is gold.
Claim 16
Dependent Claim
14 words
A method as claimed in claim 8 wherein the metal deposited is silver solder.
Claim 17
Dependent Claim
27 words
A method as claimed in claim 1 wherein the substrate is selected from a group consisting of plastics, wood, cardboard, glass, metals, silicone rubbers and silicone resins.
Claim 18
Dependent Claim
12 words
A method as claimed in claim 16 wherein the substrate is glass.
Claim 19
Dependent Claim
12 words
A method as claimed in claim 16 wherein the substrate is plastic.
Claim 20
Dependent Claim
12 words
A method as claimed in claim 16 wherein the substrate is metal.
Claim 21
Dependent Claim
13 words
A method as claimed in claim 17 wherein the glass is float glass.
Claim 22
Dependent Claim
12 words
A method as claimed in claim 18 wherein the plastic is polycarbonate.
Claim 23
Dependent Claim
12 words
A method as claimed in claim 18 wherein the plastic is acrylic.
Claim 24
Dependent Claim
12 words
A method as claimed in claim 18 wherein the plastic is nylon.
Claim 25
Dependent Claim
14 words
A method as claimed in claim 18 wherein the plastic is an acrylonitrile-butadiene-styrene copolymer.
Claim 26
Dependent Claim
12 words
A method as claimed in claim 18 wherein the plastic is polyethylene.
Claim 27
Dependent Claim
13 words
A method as claimed in claim 18 wherein the plastic is crosslinked polyethylene.
Claim 28
Dependent Claim
12 words
A method as claimed in claim 19 wherein the substrate is aluminum.
Claim 29
Dependent Claim
12 words
A method as claimed in claim 19 wherein the substrate is steel.
Claim 30
Dependent Claim
17 words
A method as claimed in claim 21 wherein the polycarbonate is in the form of a lens.
Claim 31
Dependent Claim
18 words
A method as claimed in claim 21 wherein the polycarbonate is in the form of a flat sheet.
Claim 32
Dependent Claim
18 words
A method as claimed in claim 21 wherein the polycarbonate is in the form of a thermoformed sheet.
Claim 33
Dependent Claim
17 words
A method as claimed in claim 22 wherein the acrylic is in the form of a lens.
Claim 34
Dependent Claim
18 words
A method as claimed in claim 22 wherein the acrylic is in the form of a flat sheet.
Claim 35
Independent Claim
188 words
A method of forming an adherent metal surface on a substrate by (I) treating a solid substrate with a curable organic or silicone basecoat and curing said basecoat; (II) treating said cured basecoat with at least one organofunctional silane, or the partial hydrolyzates thereof, having the general formula ##STR16## or a mixture of an organofunctional silane or the partial hydrolyzates thereof with a different organosilane, or the partial hydrolyzates thereof, which has the general formula (RO).sub.b SiR".sub.4-b in which formulae R is an alkyl radical of 1-4 carbon atoms, R' is a difunctional hydrocarbon radical having from 1-12 carbon atoms or a --CH 2 CH 2 CH 2 NHCH 2 CH 2 -- radical, X is an --NH 2 , ##STR17## --SH, OH or Cl radical, R" is an --(R'X) radical, a and b each have a value of 2 or 3, c has a value of 0 or 1 and a+c=3; (III) drying the silane treated surface until the majority of volatile materials have been removed and thereafter, (IV) vapor depositing a metal on the silane treated surface to form a thin continuous film or coating thereon.
Claim 36
Independent Claim
188 words
A method of forming an adherent metal surface on a substrate by (I) treating a solid substrate with a curable organic or silicone basecoat and curing said basecoat; (II) treating said cured basecoat with at least one organofunctional silane, or the partial hydrolyzates thereof, having the general formula ##STR16## or a mixture of an organofunctional silane or the partial hydrolyzates thereof with a different organosilane, or the partial hydrolyzates thereof, which has the general formula (RO).sub.b SiR".sub.4-b in which formulae R is an alkyl radical of 1-4 carbon atoms, R' is a difunctional hydrocarbon radical having from 1-12 carbon atoms or a --CH 2 CH 2 CH 2 NHCH 2 CH 2 -- radical, X is an --NH 2 , ##STR17## --SH, OH or Cl radical, R" is an --(R'X) radical, a and b each have a value of 2 or 3, c has a value of 0 or 1 and a+c=3; (III) drying the silane treated surface until the majority of volatile materials have been removed and thereafter, (IV) vapor depositing a metal on the silane treated surface to form a thin continuous film or coating thereon.
Claim 37
Dependent Claim
18 words
A method as claimed in claim 34 in which the curable organic basecoat is a curable acrylic polymer.
Claim 38
Dependent Claim
18 words
A method as claimed in claim 34 in which the curable organic basecoat is a curable polyester polymer.
Claim 39
Dependent Claim
18 words
A method as claimed in claim 34 in which the curable organic basecoat is a curable polyurethane polymer.
Claim 40
Dependent Claim
18 words
A method as claimed in claim 34 in which the curable organic basecoat is a curable epoxy polymer.
Claim 41
Dependent Claim
18 words
A method as claimed in claim 34 in which the curable organic basecoat is a curable silicone-epoxy copolymer.
Claim 42
Dependent Claim
17 words
A method as claimed in claim 34 in which the curable silicone basecoat is a silicone elastomer.
Claim 43
Dependent Claim
17 words
A method as claimed in claim 34 in which the curable silicone basecoat is a silicone resin.
Claim 44
Dependent Claim
137 words
A method as claimed in claim 41 wherein the curable silicone basecoat is a silicone resin which is a pigment-free aqueous coating composition comprising a dispersion of colloidal silica in lower aliphatic alcohol-water solution of the partial condensate of a silanol of the formula RSi(OH) 3 in which R is selected from the group consisting of alkyl radicals of 1 to 3 inclusive carbon atoms, the vinyl radical, the 3,3,3-trifluoropropyl radical, the gamma-glycidoxypropyl radical and the gamma-methacryloxypropyl radical, at least 70 weight percent of the silanol being CH 3 Si(OH) 3 , said composition containing 10 to 50 weight percent solids consisting essentially of 10 to 70 weight percent colloidal silica and 30 to 90 weight percent of the partial condensate, said composition containing sufficient acid to provide a pH in the range of 3.0 to 6.0.
Claim 45
Independent Claim
175 words
A method of forming an adherent metal surface on a substrate by (I) treating a solid substrate with a curable organic or silicone basecoat which contains at least one organofunctional silane, or the partial hydrolyzate thereof, having the general formula ##STR18## or a mixture of an organofunctional silane, or the partial hydrolyzate thereof, with a different organosilane, or the partial hydrolyzate thereof, which has the general formula (RO).sub.b SiR".sub.4-b in which formulae R is an alkyl radical of 1-4 carbon atoms, R' is a difunctional hydrocarbon radical having from 1-12 carbon atoms or a --CH 2 CH 2 CH 2 NHCH 2 CH 2 -- radical, X is an --NH 2 , ##STR19## --SH, OH or Cl radical, R" is an --R'X) radical, a and b each have a value of 2 or 3, c has a value of 0 or 1 and a+c=3; (II) drying the basecoat until the majority of volatiles have been removed and thereafter; (III) vapor depositing a metal on the basecoat to form a thin continuous film or coating thereon.
Claim 46
Independent Claim
175 words
A method of forming an adherent metal surface on a substrate by (I) treating a solid substrate with a curable organic or silicone basecoat which contains at least one organofunctional silane, or the partial hydrolyzate thereof, having the general formula ##STR18## or a mixture of an organofunctional silane, or the partial hydrolyzate thereof, with a different organosilane, or the partial hydrolyzate thereof, which has the general formula (RO).sub.b SiR".sub.4-b in which formulae R is an alkyl radical of 1-4 carbon atoms, R' is a difunctional hydrocarbon radical having from 1-12 carbon atoms or a --CH 2 CH 2 CH 2 NHCH 2 CH 2 -- radical, X is an --NH 2 , ##STR19## --SH, OH or Cl radical, R" is an --R'X) radical, a and b each have a value of 2 or 3, c has a value of 0 or 1 and a+c=3; (II) drying the basecoat until the majority of volatiles have been removed and thereafter; (III) vapor depositing a metal on the basecoat to form a thin continuous film or coating thereon.
Claim 47
Dependent Claim
19 words
The method of claim 1 wherein there is also present a clear topcoat on the vapor deposited metal surface.
Claim 48
Dependent Claim
21 words
A method as claimed in claim 34 wherein there is also present a clear topcoat on the vapor deposited metal surface.
Claim 49
Dependent Claim
21 words
A method as claimed in claim 43 wherein there is also present a clear topcoat on the vapor deposited metal surface.
Claim 50
Dependent Claim
58 words
An article prepared by the method of claim 43 wherein the substrate is glass, the organofunctional silane is ##STR20## the organosilane is (CH 3 O) 3 Si(CH 2 ) 3 SH, the ratio of organofunctional silane to organosilane is 1:1, the silanes are used as a 2.5 weight percent water-alcohol solution and the vapor deposited metal is silver.
Claim 51
Dependent Claim
19 words
The article as claimed in claim 47 wherein the article is further topcoated with a clear, cured, protective coating.
Claim 52
Dependent Claim
9 words
An article prepared by the method of claim 1.
Claim 53
Dependent Claim
9 words
An article prepared by the method of claim 34.
Claim 54
Dependent Claim
9 words
An article prepared by the method of claim 42.
Claim 55
Dependent Claim
9 words
An article prepared by the method of claim 43.
Claim 56
Dependent Claim
20 words
The methods as claimed in claims 1, 34 or 43 wherein the solid substrate is primed with an adhesion promoter.
Claim 57
Dependent Claim
22 words
An article as claimed in claims 47, 48, 49, 50, 51 or 52 wherein the article is primed with an adhesion promoter.
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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) | 1985-02-15 | 1985-08-17 | 1986-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-02-15 | 1989-08-17 | 1990-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-02-15 | 1993-08-17 | 1994-02-16 | $7700.00 | Window Closed / Lapsed |