Click chemistry for sealants and adhesives
AssigneeChem Link, Inc.
InventorsBaljinder Kaur, Jonathan Ballema
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Abstract
The invention described herein generally pertains to a composition that includes a silyl-terminated polymer having silyl groups linked to a polymer backbone via triazole. The silyl-terminated polymer is a reaction product of a functionalized polymer backbone and a functionalized silane. The polymer backbone includes a first functional group, which may be one of an azide or an alkyne. The functionalized silane includes a second functional group may also be one of an azide or an alkyne, but is also different from the first functional group. The functionalized polymer backbone is reacted with the functionalized silane in the presence of a metal catalyst.
Claims20
A sealant composition, comprising:
- a functionalized polymer backbone bearing a first functional group comprising one of an azide or an alkyne;
- a functionalized silane bearing a second functional group, which comprises one of an azide or an alkyne and is different from the first functional group;
- and
- a metal catalyst,
- wherein one of the first or second functional groups is a strained alkyne group.
A sealant composition, comprising:
- a functionalized polymer backbone bearing a first functional group comprising one of an azide or an alkyne, wherein the functionalized polymer backbone is a hybrid polymer comprising an inorganic polymer backbone linked to an organic polymer backbone;
- a functionalized silane bearing a second functional group, which comprises one of an azide or an alkyne and is different from the first functional group;
- and
- a metal catalyst,
- wherein the functionalized polymer backbone bearing the first functional group, the functionalized silane bearing the second functional group, and the metal catalyst are configured to react with one another to form a cured sealant.
A sealant composition, comprising:
- a functionalized polymer backbone bearing a first functional group comprising one of an azide or an alkyne;
- and
- a functionalized silane bearing a second functional group, which comprises one of an azide or an alkyne and is different from the first functional group, wherein one of the first or second functional groups is a strained alkyne group capable of reacting with an azide group without a metal catalyst to form a cured sealant.
Dependencies are inferred from the claim text.