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US 12,742,068 B2Granted
Epoxy composition containing copolyamide and block copolymer with polyamide and polyether blocks
AssigneeZephyros, Inc.
InventorVincent Duclos
Life of this patent
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Abstract
A composition that toughens and impact modifies epoxy resin based compositions comprising one or more co-polyamides and one or more block copolymers with polyamide and polyether blocks. The disclosure also relates to epoxy resin compositions containing the composition comprising one or more co-polyamides and one or more block copolymers with polyamide and polyether blocks and films, adhesives, foamable compositions and foamed compositions containing such a composition.
Claims15
A composition comprising:
- a) a first component including from about 17 to about 70 parts by weight of one or more block co-polymers having one or more polyamide blocks and one or more polyether blocks;
- and
- b) a second component including from about 30 to about 83 parts by weight of one or more co-polyamides free of any block copolymer structures;
- wherein the total parts by weight of the first and second components is 100 and present in a molar ratio of about 2:1 to 1:6;
- wherein the composition comprising the first and second components is combined with a phenoxy resin component in a weight ratio of from about 0.5 to 1 parts composition to 1 to 2 parts phenoxy resin component to form a final composition, and
- wherein the cured final composition has an elongation of at least 15% as measured according to ISO 527.
3 more elements
Dependencies are inferred from the claim text.