Sulfonium initiators, process for production and use in...

Details Sulfonium initiators, process for production and use in... Sulfonium initiators, process for production and use in...

2011-05-24

2011-05-24

Yoon, Tae H (Department: 1762)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

C433S214000, C568S026000, C554S085000

Reexamination Certificate

active

07947757

ABSTRACT:
The invention relates to an initiator comprising at least one structural element characterized by the following formula (I) wherein X−is a non or low coordinating anion, R1, R2, R3, R4 are independently linear, cyclic or branched C1-C20alkyl or alkylene groups, wherein one or more of the methylene groups contained in the alkyl or alkylene group can be substituted by —CO—, —CONH—, —CON(CH3)—, —S— and/or —O—, and wherein R1, R2, R3 and/or R4 can act as a bridging element connecting two or more structural elements. The invention is also related to a process of producing the initiator and to a curable composition comprising the initiator, a process for producing the curable composition a kit comprising a cationically curable composition and the inventive initiator and the use of the initiator or the curable composition comprising the initiator for various applications, especially in the dental field.

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