Heat-resistant laminate and heat-resistant adhesive
Assignee3M Innovative Properties Company
InventorsShunsuke Suzuki, Alejandro Aldrin II A. Narag
Life of this patent
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Abstract
A heat-resistant laminate including a substrate and an adhesive layer, the adhesive layer including a (meth)acrylic adhesive polymer and a self-crosslinking (meth)acrylic copolymer having an epoxy group and an epoxy group-reactive functional group, the adhesive layer having a sea-island structure including a sea including the (meth)acrylic adhesive polymer and an island including the self-crosslinking (meth)acrylic copolymer, and the laminate having a 180 degree peeling force of 0.9 N/cm or more after bonding to a SUS board and leaving at 120° C. for 30 minutes as measured at a temperature of 60° C. and a peeling speed of 300 mm/min.
Claims16
A heat-resistant laminate comprising:
- a substrate;
- and an adhesive layer, wherein the adhesive layer includes a (meth)acrylic adhesive polymer, and a self-crosslinking (meth)acrylic copolymer having an epoxy group and an epoxy group-reactive functional group, the adhesive layer has a sea-island structure including a sea including the (meth)acrylic adhesive polymer and an island including the self-crosslinking (meth)acrylic copolymer, and the laminate has a 180 degree peeling force of 0.9 N/cm or more after being adhered to a SUS board and left at 120° C. for 30 minutes as measured at a temperature of 60° C. and a peeling speed of 300 mm/min.
A heat-resistant laminate comprising:
- a substrate;
- and an adhesive layer, wherein the adhesive layer includes a (meth)acrylic adhesive polymer, a self-crosslinking (meth)acrylic copolymer having an epoxy group and an epoxy group-reactive functional group, and a tackifier having an epoxy group-reactive functional group, and the adhesive layer has a sea-island structure including a sea including the (meth)acrylic adhesive polymer and an island including the self-crosslinking (meth)acrylic copolymer.
A heat-resistant adhesive comprising:
- a (meth)acrylic adhesive polymer;
- a self-crosslinking (meth)acrylic copolymer having an epoxy group and an epoxy group-reactive functional group;
- and a tackifier having an epoxy group-reactive functional group, wherein the adhesive forms a sea-island structure including a sea including the (meth)acrylic adhesive polymer and an island including the self-crosslinking (meth)acrylic copolymer when solidified or dried on a substrate.
Dependencies are inferred from the claim text.