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US 12,240,999 B2Granted
BHM in adhesive compositions
AssigneeAscend Performance Materials Operations LLC
InventorsZheng Chai, Jefferson Thomas Ebert
Life of this patent
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Abstract
An adhesive composition comprising a first part comprising an epoxy resin and a second part comprising a multifunctional amine package. The multifunctional amine package comprises bis(hexamethylene)triamine and a synergist. The amine concentration is at least 10% less than the epoxy resin concentration and the adhesive composition demonstrates a sag resistance of greater than 40 mm.
Claims21
An adhesive composition comprising:
- a first part comprising an epoxy resin;
- and
- a second part comprising a multifunctional amine package comprising:
- bis(hexamethylene)triamine;
- and
- a synergist;
- wherein, in the adhesive composition, the amine concentration is at least 10% less than the epoxy resin concentration, and
- wherein the adhesive composition demonstrates a sag resistance ranging from 10 mm to 300 mm;
- and
- wherein, when cured, the cured composition demonstrates a Koenig hardness from 2 to 70, with a Koenig Hardness (1 day) from 2 to 20.
7 more elements
A process for making an adhesive composition, comprising:
- dissolving in a solvent a multifunctional amine package comprising bis(hexamethylene) triamine and a synergist to form a second part;
- contacting the second part with a first part comprising an epoxy resin to form the adhesive composition;
- and
- wherein, when cured, the cured composition demonstrates a Koenig hardness from 2 to 70, with a Koenig Hardness (1 day) from 2 to 20.
1 more element
Dependencies are inferred from the claim text.