Secondary amine-functional silanes, silane-functional polymers therefrom, and resulting cured polymers
Assignee3M Innovative Properties Company
InventorsRichard G. Hansen, Dean M. Moren
Life of this patent
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Abstract
Secondary amine-functional silanes comprising at least one ester group and at least one amide group are disclosed. The secondary amine-functional silanes are preparable from relatively inexpensive, commercially available raw ingredients, are stable at room temperature and are reactive toward electrophiles. Also disclosed are silane-terminated polymers, silane-terminated polyurethane dispersions, and moisture-cured polymers derived therefrom.
Claims16
A moisture-curable silane-functional polymer derived from a chemical composition of Formula I:
- wherein:
- X comprises at least one silane group;
- and
- Y comprises a hydrocarbon backbone, at least one amide group on an α-carbon, and at least one ester group on a β-carbon with respect to N.
A moisture-curable silane-functional polymer derived from a chemical composition of Formula II:
- wherein:
- n is 1,2or 3;
- R1 is a divalent linking group;
- Each R2 is independently a monovalent organic radical;
- Each R3 is independently a monovalent organic radical;
- R4 is a monovalent organic radical;
- R5 and R6 are each independently selected from the group consisting of hydrogen and monovalent organic radicals or R5 and R6, when taken together, may form a 5- or 6-membered ring with the nitrogen atom;
- R7 is selected from the group consisting of hydrogen and monovalent organic radicals;
- and
- R8 is selected from the group consisting of hydrogen and monovalent organic radicals.
A silane-terminated polyurethane dispersion derived from a chemical composition of Formula I:
- wherein:
- X comprises at least one silane group;
- and
- Y comprises a hydrocarbon backbone, at least one amide group on an α-carbon, and at least one ester group on a β-carbon with respect to N.
A silane-terminated polyurethane dispersion derived from a chemical composition of Formula II:
- wherein:
- n is 1, 2 or 3;
- R1 is a divalent linking group;
- Each R2 is independently a monovalent organic radical;
- Each R3 is independently a monovalent organic radical;
- R4 is a monovalent organic radical;
- R5 and R6 are each independently selected from the group consisting of hydrogen and monovalent organic radicals or Rand R6, when taken together, may form a 5- or 6-membered ring with the nitrogen atom;
- R7 is selected from the group consisting of hydrogen and monovalent organic radicals;
- and
- R8 is selected from the group consisting of hydrogen and monovalent organic radicals.
Dependencies are inferred from the claim text.