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US 12,116,506 B2Granted
Adhesive composition
AssigneeLG Chem, Ltd.
InventorsMin Jin Ko, Jae Ho Jung, Min A Yu, Min Kyoun Kim, Byung Kyu Cho, Taek Yong Lee, Dong Yong Kim
Life of this patent
Estimating the term…
Abstract
An epoxy-based adhesive composition and methods for manufacturing the same are provided. The adhesive composition provides excellent adhesion strength, peel strength and impact-resistant strength uniformly over a wide temperature range.
Claims14
An adhesive composition comprising:
- (a) one or more epoxy resins;
- (b) a modified epoxy resin having a polyether structure, wherein the modified epoxy resin having the polyether structure is a reactant of an amine-terminated polyether and an epoxy resin;
- (c) a core-shell rubber in the form of primary particles and a core-shell rubber in the form of secondary particles, wherein the secondary particles comprise two or more core-shell rubbers in the form of primary particles which are aggregated, and a weight ratio of the core-shell rubber in the form of primary particles is 20 wt % or less;
- and
- (d) one or more epoxy curing agents,
- wherein the modified epoxy resin (b) having the polyether structure comprises an amine-terminated polyalkylene glycol having an amine equivalent in a range of 300 to 2,000 and the epoxy resin having an epoxy equivalent in a range of 150 to 300.
3 more elements
Dependencies are inferred from the claim text.