Two-component curable solventless-type laminate adhesive and resin cured product
AssigneeMitsui Chemicals, Inc.
InventorsJunichi Nakagawa, Akihiro Imai, Kazuhiro Ando, Toshihiko Nakagawa, Hirokazu Morita, Satoshi Yamasaki
Life of this patent
Estimating the term…
Abstract
A two-component curable solventless-type laminate adhesive contains a polyisocyanate component and a polyol component. The polyisocyanate component contains a derivative of a pentamethylene diisocyanate, the derivative of the pentamethylene diisocyanate contains an isocyanurate group and an allophanate group, and the content ratio of the isocyanurate group with respect to 100 moles of the total amount of the isocyanurate group and the allophanate group is 60 moles or more and 99 moles or less.
Claims6
A two-component curable solventless-type laminate adhesive comprising:
- a polyisocyanate component and a polyol component, wherein
- the polyisocyanate component contains
- a derivative of a pentamethylene diisocyanate and a polyisocyanate group-terminated prepolymer derived from an araliphatic diisocyanate,
- the derivative of the pentamethylene diisocyanate contains an isocyanurate group and an allophanate group,
- the content ratio of the isocyanurate group with respect to 100 moles of the total amount of the isocyanurate group and the allophanate group is 90 moles or more and 98 moles or less,
- the polyol component contains a polyester polyol or a polyurethane polyol, and
- the equivalent ratio of an isocyanate group of the polyisocyanate component with respect to a hydroxyl group of the polyol component is 0.3 or more and 3.0 or less.
Dependencies are inferred from the claim text.