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US 8,796,382 B2Granted
Two-component structure adhesive for the adhering of rare earth magnets
AssigneeVacuumschmelze GmbH & Co. KG
InventorLothar Zapf
Life of this patent
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Abstract
Disclosed herein is a two-component structural adhesive based on organic compounds containing radically polymerizable multiple bonds, in particular substituted acrylates and/or methacrylates, which on account of their lack of acids are particularly suited for adhering rare earth permanent magnets based on neodymium-iron-boron.
Claims25
A two-component structural adhesive composition, comprising:
- (A) a first acid-free component comprising a monomer containing one or more radically polymerizable multiple bonds;
- (B) a second acid-free component comprising a radical initiator or a radical activator;
- wherein:
- the first component further comprises a radical initiator and the second component comprises a radical activator, or the first component further comprises a radical activator and the second component comprises a radical initiator;
- and
- the first component or the second component, or both, further comprise a resin or resin mixture comprising one or more phenoxy resins of the bisphenol A series, one or more phenoxy resins of the bisphenol F series, one or more solid epoxy resins of the bisphenol A series, one or more solid weight epoxy resins of the bisphenol F series, or mixtures thereof, and having an average molecular weight between 2000 and 100,000 g/mo.
3 more elements
Dependencies are inferred from the claim text.