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US 8,263,185 B2Granted
Bonding agent containing a silane reaction product
AssigneeSika Technology AG
InventorWolf-Rudiger Huck
Life of this patent
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Abstract
The invention relates to compositions comprising or consisting of a reaction product obtained from a reaction mixture of aminosilane of formula (I), a mecaptosilane of formula (II) and an epoxysilane of formula (III). Said compositions are suitable as bonding agents, especially in the form of primers. The compositions are highly adhesive and especially suitable for low-temperature applications and especially for sticking glass together.
Claims30
A composition comprising:
- a solvent;
- and
- at least one reaction product obtained from a reaction mixture comprising:
- at least one aminosilane of the formula (I)
- at least one mercaptosilane of the formula (II)
- at least one epoxy silane of the formula (III)
- where R1 is an n-valent organic radical with at least one primary and/or secondary amino group,
- R1′ is an m-valent organic radical with at least one mercapto group,
- R1″ is a p-valent organic radical with at least one epoxy group,
- R2, R2′ and R2″ are each independently an alkyl group having 1 to 4 carbonatoms,
- R3, R3′ and R3″ are each independently H or an alkyl group having 1 to 10 carbonatoms,
- a, b and c are each independently 0, 1 or 2, and
- n, m and p are each independently 1, 2, 3 and 4.
10 more elements
Dependencies are inferred from the claim text.