Adhesion of metals to solid substrates
First Claim
1. 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
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 --CH2 CH2 CH2 NHCH2 CH2 --radical X is an --NH2, ##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.
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Accused Products
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.
65 Citations
54 Claims
- 1. 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 - space="preserve" listing-type="equation">(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 --CH2 CH2 CH2 NHCH2 CH2 --radical X is an --NH2, ##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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 44, 49, 53)
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34. 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
space="preserve" listing-type="equation">(RO).sub.b SiR".sub.4-bin 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 --CH2 CH2 CH2 NHCH2 CH2 -- radical, X is an --NH2, ##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. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41, 42, 45, 50, 51)
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- 43. 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 - space="preserve" listing-type="equation">(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 --CH2 CH2 CH2 NHCH2 CH2 -- radical, X is an --NH2, ##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. - View Dependent Claims (46, 47, 48, 52, 54)
Specification