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US 10,125,155 B2Granted
Silane modified formamides
AssigneeCovestro Deutschland AG
InventorChristoph Eggert
Life of this patent
Estimating the term…
Abstract
The invention relates to novel silane-modified formamides 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 and/or pre-polymers.
Claims16
A compound of formula (I):
- wherein:
- X represents an optionally substituted, linear or branched, aliphatic, alicyclic, araliphatic, heterocyclic and/or aromatic structural unit having from 1 to 40 carbon atoms, wherein one or more non-adjacent methylene groups can each be replaced by O or S;
- or X represents —H or —NCO;
- R represents an at least divalent, optionally substituted, linear or branched, aliphatic, alicyclic, araliphatic and/or aromatic structural unit having from 1 to 40 carbon atoms, wherein one or more non-adjacent methylene groups can each be replaced by O or S;
- 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;
- and
- n represents an integer from 0 to 2.
5 more elements
A silane-modified compound of formula (IV):
- wherein
- Y is an optionally substituted, linear or branched, aliphatic, alicyclic, araliphatic, heterocyclic and/or aromatic structural unit having from 1 to 40 carbon atoms or a structural unit reduced by m OH radicals of a polyhydric alcohol (polyol) or of a polyurethane, polyurea, polyester, polyether, polycarbonate, polyacetal, polyacrylate, polyester amide or polythioether polyol;
- R represents an at least divalent, optionally substituted, linear or branched, aliphatic, alicyclic, araliphatic and/or aromatic structural unit having from 1 to 40 carbon atoms, wherein one or more non-adjacent methylene groups can each be replaced by O or S;
- 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;
- and
- n represents an integer from 0 to 2, and
- m represents a number from 1 to 10.
5 more elements
Dependencies are inferred from the claim text.