Patent ID: 7151072

Claim:
A multi-part kit comprising: in a first part, a polymerizable composition, wherein the polymerizable composition comprises: at least one polymerizable monomer, and a β-ketone compound decomplexer having a structure represented by formula (1) or formula (2): wherein for formula (1): R 1 is hydrogen or an organic group; R 2 is an organic group; W 2 is an electron withdrawing group selected from the group consisting of —O 2 C—, —(CO)—, —HN(CO)—, and —NR 3 (CO)—; where R 3 is an organic group; R 4 is an organic group having valence n; and n is an integer greater than zero; and wherein for formula (2): R 1 is hydrogen or an organic group; R 2 is an organic group; and W 1 is an electron withdrawing group selected from the group consisting of NC— and H 2 N(CO)—; and in a second part, an initiator component, wherein the initiator component comprises: a complexed initiator, and an optional diluent.