Phosphorus-containing organo silanes
AssigneePPG Industries, Inc.
InventorMichael W. Klett
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Abstract
New phosphorus-containing organo functional silane are produced through reactions such as condensation or Michael's addition reactions of hydroxyl-containing and/or methylol-containing phosphorus compounds and organo-functional silanes having at least one active hydrogen associated with a nitrogen in the organo moiety or an isocyanato, anhydride, alkene or epoxy moiety. The reaction can be conducted at a temperature in the range of around less than ambient to around 150.degree. C. with or without a solvent in a molar ratio of around 1:1 to around 1:4 of the phosphorus-containing compound to the silane.
Claims13
Phosphorus-containing-organo-silane compound of the general formula:
- ##STR10## I W is oxygen, sulfur, (R'OR) or a lone pair of electrons, where the oxygen and sulfur are double bonded to the phosphorus, and where
- a is an integer of 0 or 1;
- II Y is a hydrogen, alkyl, aryl, hydroxy or an (ROR') group, and where
- c is an integer 0 or 1;
- and
- III X is trialkoxy organo functional silane moiety or hydrolysis derivative thereof and where:
- R' is hydrogen, or substituted or unsubstituted aliphatic radicals or mixtures thereof;
- and
- R is a bivalent substituted or unsubstituted alkylene or arylene radical;
- and
- a, b, c are integers where b is 1 to 4, a is 0 or 1, c is 0-2, and when C is at least 1 and a is zero and b is 1 or 2, the compound can be in salt form as the cation with anions selected from the group consisting of halides, sulfates, formates, acetates and phosphates.
A method of producing phosphorus-containing organo silanes, comprising:
- contacting methylol-containing phosphorus compounds with organo functional silanes, selected from the group consisting of nitrogen-containing organo silanes having at least one active hydrogen associated with the nitrogen wherein the organo moiety also has a carbonyl group and isocyanato-containing organo silanes, and glycidoxy-containing organo silanes in the presence of a basic catalyst in the presence of a phosphorus-containing solvent in a molar ratio of 1:1 at a temperature in the range of around 60.degree. to 80.degree. C. (140.degree. F.-176.degree. F.) for a sufficient period of time to enable condensation reaction between the reactants,
- separating the phosphorus-containing, nitrogen-containing, carbonyl-containing silane from any unreacted components.
Dependencies are inferred from the claim text.