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US 2003/0195318 A1Published application
Metal salt modifiers for bonding compositions
Assignee3M Innovative Properties Company
InventorDean M. Moren
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Abstract
The invention provides bonding compositions and reactive two-part bonding compositions that are useful, for example, in bonding low surface energy substrates (e.g., polyethylene, polypropylene and polytetrafluoroethylene). Bonding compositions of the invention include an organoborane, a polymerizable monomer, and a metal salt which modifies the cure kinetics of the bonding composition to provide a favorable balance of long bonding composition worklife and fast rate of strength build.
Claims44
A bonding composition comprising:
- (i) an organoborane;
- (ii) at least one polymerizable monomer;
- and
- (iii) a metal salt according to formula (1):
- [Ma+Ln][X−m]a/m (1)
- wherein:
- M is a metal cation having two chemically accessible oxidation states and having positive charge a, where a is an integer ranging from 1 to 6;
- X is a counterion having charge −m, where m is an integer ranging from 1 to 3;
- L is a covalently bonded ligand;
- and
- n is an integer ranging from 0 to 10 representing the number of ligands covalently bonded to the metal cation.
8 more elements
A reactive, two-part bonding composition comprising:
- (a) an initiator component comprising an organoborane;
- and
- (b) a polymerizable composition comprising:
- at least one polymerizable monomer;
- and
- a metal salt according to formula (1):
- [Ma+Ln][X−m]a/m (1)
- wherein:
- M is a metal cation having two chemically accessible oxidation states and having positive charge a, where a is an integer ranging from 1 to 6;
- X is a counterion having charge −m, where m is an integer ranging from 1 to 3;
- L is a covalently bonded ligand;
- and
- n is an integer ranging from 0 to 10 representing the number of ligands covalently bonded to the metal cation.
10 more elements
Dependencies are inferred from the claim text.