Structural polyurethane adhesive
AssigneeMitsui Chemicals, Inc.
InventorsTakuya CHIKAMOTO, Tatsuya YAJIMA, Naomi YAMAMOTO
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Abstract
A structural polyurethane adhesive contains a polyisocyanate component and a polyol component. The polyisocyanate component contains an isocyanate group-terminated urethane prepolymer that is a reaction product of a first material polyisocyanate containing an aromatic polyisocyanate and a first material polyol containing a macropolyol. The polyol component contains: a hydroxyl group-terminated urethane prepolymer that is a reaction product of a second material polyisocyanate containing an araliphatic polyisocyanate and/or an alicyclic polyisocyanate and a second material polyol containing a macropolyol; and a low molecular-weight polyol.
Claims9
A structural polyurethane adhesive comprising:
- a polyisocyanate component;
- and a polyol component,
- wherein the polyisocyanate component contains an isocyanate group-terminated urethane prepolymer that is a reaction product of a first material polyisocyanate containing an aromatic polyisocyanate and a first material polyol containing a macropolyol, and
- wherein the polyol component contains:
- a hydroxyl group-terminated urethane prepolymer that is a reaction product of a second material polyisocyanate containing an araliphatic polyisocyanate and/or an alicyclic polyisocyanate and a second material polyol containing a macropolyol;
- and
- a low molecular-weight polyol.
Dependencies are inferred from the claim text.