Claims
- 1. An inorganic substrate treated with an organosilicon coupling agent selected from the class consisting of (i) amino substituted mercapto organosilanes having the formula ##STR26## wherein R' is a monovalent hydrocarbon radical selected from the class consisting of hydrogen, hydrocarbon radicals and substituted hydrocarbon radicals.
- wherein X is a hydrolyzable radical selected from the class consisting of alkoxy, aryloxy, acyloxy, secondary amino and aminooxy radicals;
- wherein R is a divalent bridging group selected from the class consisting of hydrocarbon radicals, groups of the formula --R"OR"-- and groups of the formula --R"SR"--, wherein R" is a divalent hydrocarbon radical;
- wherein Q is an oxygen atom or a sulfur atom;
- wherein Z is a monovalent organic amino radical, the nitrogen atom of which is directly bonded to the carbon atom of the (CH.sub.2) group of the above formula;
- wherein n has a value of 0 or 1, and t has a value of 0 or 1, with the proviso that when n is 0, then t is 0;
- wherein a has a value of 1 to 3 and b has a value of 0 to 2, with the proviso that the sum of (a+b) is not greater than 3; (ii) amino substituted mercapto organosiloxane homopolymers consisting essentially of siloxy units having the formula ##STR27## wherein R', R, Q, Z, n, t, a and b are the same as defined above; and (iii) amino substituted mercapto organosiloxane copolymers consisting essentially of at least one siloxy unit represented by formula (II) above and at least one siloxy unit represented by the formula ##EQU3## wherein R' is the same as defined in formula (II) above and wherein c has a value from 0 to 3 inclusive.
- 2. An inorganic substrate as defined in claim 1, wherein the substrate is a siliceous reinforcing material.
- 3. An inorganic substrate as defined in claim 2, wherein the organosilicon coupling agent is an amino substituted mercapto organosilane having the formula ##STR28##
- 4. An inorganic substrate as defined in claim 3, wherein R' is an alkyl radical, wherein X is an alkoxy radical, wherein R is an alkylene or alkyleneoxyalkylene radical, and wherein n is 1, t is 0 and a is 1.
- 5. An inorganic substrate as defined in claim 4, wherein b is 0 and Z is an organic amino radical of the formula
- --NZ.sup.1 Z.sup.2
- wherein Z.sup.1 and Z.sup.2 are taken individually and Z.sup.1 is an organic radical selected from the class consisting of alkyl, aryl, aralkyl, alkaryl and haloaryl radicals; hydroxy substituted alkyl, aryl, aralkyl and alkaryl radicals; alkoxy substituted alkyl, aryl, aralkyl and alkaryl radicals; mercapto substituted alkyl, aryl, aralkyl and alkaryl radicals; amino substituted alkyl, aryl, aralkyl and alkaryl radicals; and hydrolyzable silyl substituted alkyl, aryl, aralkyl and alkaryl radicals; and wherein Z.sup.2 is hydrogen or a Z.sup.1 radical as defined above.
- 6. An inorganic substrate as defined in claim 5, wherein X is methoxy or ethoxy, R is a propyleneoxymethylene radical, Z.sup.1 is alkyl or aralkyl and Z.sup.2 is hydrogen.
- 7. An inorganic substrate as defined in claim 6, wherein Z.sup.1 is a p-toluidinyl radical.
- 8. An inorganic substrate as defined in claim 2, wherein the organosilicon coupling agent is an amino substituted mercapto organosiloxane homopolymer consisting essentially of siloxy units of the formula ##STR29##
- 9. An inorganic substrate as defined in claim 8, wherein R' is an alkyl radical, wherein R is an alkylene or alkyleneoxyalkylene radical and wherein n is 1 and t is 0.
- 10. An inorganic substrate as defined in claim 9, wherein R is a propyleneoxymethylene radical and Z is an organic amino radical of the formula
- --NZ.sup.1 Z.sup.2
- wherein Z.sup.1 and Z.sup.2 are taken individually and Z.sup.1 is an organic radical selected from the class consisting of alkyl, aryl, aralkyl, alkaryl, and haloaryl radicals; hydroxy substituted alkyl, aryl, aralkyl and alkaryl radicals; alkoxy substituted alkyl, aryl, aralkyl and alkaryl radicals; mercapto substituted alkyl, aryl, aralkyl and alkaryl radicals; amino substituted alkyl, aryl, aralkyl and alkaryl radicals; and hydrolyzable silyl substituted alkyl aryl, aralkyl and alkaryl radicals; and wherein Z.sup.2 is hydrogen or a Z.sup.1 radical as defined above.
- 11. An inorganic substrate as defined in claim 10, wherein Z.sup.1 is an alkyl or aralkyl radical and Z.sup.2 is hydrogen.
- 12. An inorganic substrate as defined in claim 11, wherein Z.sup.1 is a p-toluidinyl radical.
- 13. An inorganic substrate as defined in claim 2, wherein the organosilicon coupling agent is an amino substituted mercapto organosiloxane copolymer consisting essentially of at least one siloxy unit of the formula ##STR30## and at least one siloxy unit of the formula ##EQU4##
- 14. An inorganic substrate as defined in claim 13, wherein R' is a monovalent hydrocarbon radical, wherein R is an alkylene or alkyleneoxyalkylene radical, and wherein n is 1, t is 0 and a is 1.
- 15. An inorganic substrate as defined in claim 14, wherein R' is an alkyl radical.
- 16. An inorganic substrate as defined in claim 15, wherein R is a propyleneoxymethylene radical and wherein Z is an organic amino radical of the formula
- --NZ.sup.1 Z.sup.2
- wherein Z.sup.1 and Z.sup.2 are taken individually and Z.sup.1 is an organic radical selected from the class consisting of alkyl, aryl, aralkyl, alkaryl and haloaryl radicals; hydroxy substituted alkyl, aryl, aralkyl and alkaryl radicals, alkoxy substituted alkyl, aryl, aralkyl and alkaryl radicals; mercapto substituted alkyl, aryl, aralkyl and alkaryl radicals; amino substituted alkyl, aryl, aralkyl and alkaryl radicals; and hydrolyzable silyl substituted alkyl, aryl, aralkyl and alkaryl radicals; and wherein Z.sup.2 is hydrogen or a Z.sup.1 radical as defined above.
- 17. An inorganic substrate as defined in claim 16, wherein Z.sup.2 is hydrogen and Z.sup.1 is an alkyl or aralkyl radical.
- 18. An inorganic substrate as defined in claim 17, wherein Z.sup.1 is a p-toluidinyl radical.
- 19. An inorganic substrate as defined in claim 2, wherein the siliceous reinforcing material is selected from the class consisting of silica fillers, metal silicate fillers and glass fibers.
- 20. An inorganic substrate as defined in claim 2, wherein the amino substituted mercapto organosilicon coupling agent is employed in the form of a solubilized solution.
- 21. An inorganic substrate as defined in claim 2, wherein the amino substituted mercapto organosilicon coupling agent is employed in the form of an aqueous composition.
Parent Case Info
This application is a divisional of copending U.S. application Ser. No. 810,786 filed June 28, 1977, now U.S. Pat. No. 4,156,677.
US Referenced Citations (6)
Divisions (1)
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Number |
Date |
Country |
Parent |
810786 |
Jun 1977 |
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