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US 10,040,808 B2Granted
Silane-modified formamides
AssigneeCovestro Deutschland AG
InventorChristoph Eggert
Life of this patent
Estimating the term…
Abstract
The invention relates to novel silane-modified formamide-polymers and/or pre-polymers for bonding and/or sealing diverse substrate materials, such as, for example metal, wood, glass and/or plastic. The invention also relates to a reactive single-component adhesive system comprising the claimed silane-modified formamide polymers.
Claims15
A compound of formula (I):
- wherein in formula (I):
- Y represents a m-valent molecular radical which is a structural unit reduced by m NCO radicals of a monoisocyanate (m=1), of a polyisocyanate (m>1) or of an isocyanate-group-containing prepolymer (m=from 1 to 20);
- R1 represents an at least divalent, optionally substituted, linear or branched, aliphatic, alicyclic, araliphatic and/or aromatic structural unit having from 1 to 12 carbon atoms, wherein one or more non-adjacent methylene groups can each be replaced by O or S;
- R2 and R3 each independently of the other represents an optionally substituted, linear or branched, aliphatic group having from 1 to 12 carbon atoms;
- n represents an integer from 0 to 2;
- and
- m represents a number from 1 to 20.
4 more elements
A compound of formula (I):
- wherein in formula (I):
- Y is a radical derived from a monoisocyanate, from a polyisocyanate, or from a prepolymer carrying isocyanate groups;
- R1 represents an at least divalent, optionally substituted, linear or branched, aliphatic, alicyclic, araliphatic and/or aromatic structural unit having from 1 to 12 carbon atoms, wherein one or more non-adjacent methylene groups can each be replaced by O or S;
- R2 and R3 each independently of the other represents an optionally substituted, linear or branched, aliphatic group having from 1 to 12 carbon atoms;
- n represents an integer from 0 to 2;
- and
- m represents a number from 1 to 20.
4 more elements
Dependencies are inferred from the claim text.