Impregnation sealant for electronic components
AssigneeHenkel IP & Holding GmbH
InventorsPatrick O'Dwyer, Greg Clarke, Peter Joseph Wrobel
Life of this patent
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Abstract
The present invention relates to an anaerobically curable impregnation sealant composition and methods thereof containing a (meth)acrylic monofunctional monomer with a hydrophobic moiety, a (meth)acrylic monofunctional monomer with a hydroxyl group, a modified polyester urethane methacrylate resin having a weight average molecular weight of from about 8000 to about 18000 g/mol, and triallylisocyanurate, triallylcyanurate, or derivatives thereof, or a combination thereof. The present invention particularly relates to a sealant composition for impregnation to plastic and metal substrates that also provides resistance to thermal cycling.
Claims27
An anaerobically curable impregnation sealant composition comprising:
- (a) at least one (meth)acrylic monofunctional monomer containing a hydrophobic moiety;
- (b) at least one (meth)acrylic monofunctional monomer containing a hydroxyl group;
- (c) at least one modified polyester urethane methacrylate resin having a weight average molecular weight of from about 8000 to about 18000 g/mol;
- and
- (d) triallylisocyanurate, triallylcyanurate, or derivatives thereof, or a combination thereof.
A method of manufacturing an anaerobically curable composition comprising:
- a) providing (a) at least one (meth)acrylic monofunctional monomer containing a hydrophobic moiety and (b) at least one (meth)acrylic monofunctional monomer containing a hydroxyl group;
- b) and combining said monomers with (c) at least one modified polyester urethane methacrylate resin having a weight average molecular weight of from about 8000 to about 18000 g/mol, and (d) triallylisocyanurate, triallylcyanurate, or derivatives thereof, or a combination thereof.
An anaerobically curable impregnation sealant composition comprising:
- (a) at least one (meth)acrylic monofunctional monomer containing a hydrophobic moiety;
- (b) at least one (meth)acrylic monofunctional monomer containing a hydroxyl group;
- (c) at least one modified polyester urethane methacrylate resin having a weight average molecular weight of from about 8000 to about 18000 g/mol.
An anaerobically curable impregnation sealant composition comprising:
- triallylisocyanurate, triallylcyanurate, or derivatives thereof, or a combination thereof.
Dependencies are inferred from the claim text.