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US 2003/0228973 A1Published application
Initiator systems comprising beta-ketone compounds and bonding compositions made therewith
Assignee3M Innovative Properties Company
InventorDean M. Moren
Life of this patent
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Abstract
The invention provides initiator systems capable of initiating polymerization. More specifically, the invention relates to initiator systems comprising a complexed initiator and a β-ketone compound decomplexer. The invention further relates to the use of these initiator systems for initiating polymerization, as well as kits, bonding compositions, and polymerized compositions made therewith, and coated substrates and bonded articles prepared therefrom.
Claims39
An initiator system, comprising:
- a complexed initiator;
- and
- a β-ketone compound decomplexer having a structure represented by formula (1) or formula (2):
- 14
- wherein:
- for formula (1):
- R1 is hydrogen or an organic group;
- R2 is an organic group;
- W2 is an electron withdrawing group selected from the group consisting of —O2C—, —(CO)—, —HN(CO)—, and —NR3(CO)—;
- where R3is an organic group;
- R4 is an organic group having valence n;
- and
- n is an integer greater than zero;
- and wherein for formula (2):
- R1 is hydrogen or an organic group;
- R2 is an organic group;
- and
- W1 is an electron withdrawing group is selected from the group consisting of NC— and H2N(CO)—.
15 more elements
A kit comprising:
- (1) 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):
- 18
- wherein for formula (1):
- R1 is hydrogen or an organic group;
- R2 is an organic group;
- W2 is an electron withdrawing group selected from the group consisting of —O2C—, —(CO)—, —HN(CO)—, and —NR3(CO)—;
- where R3 is an organic group;
- R4 is an organic group having valence n;
- and
- n is an integer greater than zero;
- and wherein for formula (2):
- R1 is hydrogen or an organic group;
- R2 is an organic group;
- and
- W1 is an electron withdrawing group selected from the group consisting of NC— and H2N(CO)—;
- and
- (2) an initiator component, wherein the initiator component comprises:
- a complexed initiator, and
- an optional diluent.
18 more elements
A bonding composition comprising:
- (1) a polymerizable composition comprising:
- at least one polymerizable monomer, and
- a β-ketone compound decomplexer having a structure represented by formula (1) or formula (2):
- 19
- wherein for formula (1):
- R1 is hydrogen or an organic group;
- R2 is an organic group;
- W2 is an electron withdrawing group selected from the group consisting of —O2C—, —(CO)—, —HN(CO)—, and —NR3(CO)—;
- where R3 is an organic group;
- R4 is an organic group having valence n;
- and
- n is an integer greater than zero;
- and wherein for formula (2):
- R1 is hydrogen or an organic group;
- R2 is an organic group;
- and
- W1 is an electron withdrawing group selected from the group consisting of NC— and H2N(CO)—;
- and
- (2) a complexed initiator.
16 more elements
Dependencies are inferred from the claim text.