Activatable material for sealing, baffling or reinforcing and method of forming same
AssigneeL&L Products, Inc.
InventorsMichael J. Czaplicki, Christopher Hable, David Carlson
Life of this patent
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Abstract
An activatable material and articles incorporating the same is disclosed. The activatable material includes at least three of an epoxy resin; a thermoplastic polyether; a blowing agent; a curing agent; and a filler. The activatable material is preferably used for sealing, baffling or reinforcing an article of manufacture such as an automotive vehicle.
Claims27
A method of sealing, baffling or reinforcing a portion of an automotive vehicle, the method comprising:
- providing an activatable material, the activatable material including:
- i) 30% to about 80% by weight epoxy resin;
- ii) 5% to about 25% by weight thermoplastic polyether selected from a polyetheramine and a polyamino ether;
- and
- iii) a curing agent;
- applying the activatable material to a surface of a carrier member;
- inserting the carrier member with the activatable material disposed thereon into a cavity that is at least partially defined by a structural member of the automotive vehicle;
- and
- exposing the activatable material to heat thereby activating the activatable material to bond to surfaces of the structural member;
- wherein the thermoplastic polyether has a melt index between about 25 and about 75 per 10 minutes under a load of 2.16 Kg at a temperature of 190° C.
A method of sealing, baffling or reinforcing a portion of an automotive vehicle, the method comprising:
- providing an activatable material, the activatable material including:
- i) between about 40% and about 60% by weight epoxy resin;
- ii) between about 5% and about 25% by weight thermoplastic polyether selected from a polyetheramine and a polyamino ether;
- and
- iii) a curing agent;
- locating the activatable material within a cavity or upon a surface of a structure of the automotive vehicle;
- and
- exposing the activatable material to heat thereby activating the activatable material to bond to surfaces of the structure;
- wherein the thermoplastic polyether has a melt index between about 25 and about 75 per 10 minutes under load of 2.16 Kg at a temperature of 190° C.
A method of sealing, baffling or reinforcing a portion of an automotive vehicle, the method comprising:
- providing an activatable material, the activatable material including:
- i) 30% to about 80% by weight epoxy resin;
- ii) 5% to about 25% by weight thermoplastic polyether selected from a polyetheramine and a polyamino ether;
- iii) a curing agent;
- and
- iv) a blowing agent;
- locating the activatable material within a cavity or upon a surface of a structure of the automotive vehicle;
- and
- exposing the activatable material to heat in an automotive e-coat or paint operation thereby activating the activatable material to foam, cure and bond to surfaces of the structure;
- wherein the thermoplastic polyether is formed by reacting an amine with an average functionality of 2 or less with a glycidyl ether;
- and
- wherein the thermoplastic polyether has a melt index between about 25 and about 75 per 10 minutes under load of 2.16 Kg at a temperature of about 190° C.
Dependencies are inferred from the claim text.