Polyurethane pressure-sensitive adhesives

Details Polyurethane pressure-sensitive adhesives Polyurethane pressure-sensitive adhesives

1996-12-19

1999-06-08

Niland, Patrick D.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

522 90, 525123, 525131, 525455, C08J 300, C08J 328, C08K 320, C08L 7500

Patent

active

059105364

ABSTRACT:
which an isocyanate-terminated prepolymer is reacted to convert the isocyanate terminal groups into groups capable of cross-linking with each other, excess isocyanate groups are quenched with an isocyanate group quenching compound and the resulting prepolymer is then irradiated or heated to form the polyurethane-based adhesives, and adhesives produced thereby. Alternatively, a hydroxyl-terminated prepolymer is reacted with a reagent having isocyanate and methacrylate groups to form a prepolymer which is then irradiated or heated.

REFERENCES:
patent: 4043982 (1977-08-01), O'Sullivan et al.
patent: 4297185 (1981-10-01), Chevreux et al.
patent: 4642126 (1987-02-01), Zador et al.
patent: 4914173 (1990-04-01), Ansell
patent: 5017625 (1991-05-01), Ansell
patent: 5087686 (1992-02-01), Ansell et al.
patent: 5116930 (1992-05-01), Yabuta et al.
patent: 5274045 (1993-12-01), Yukawa et al.

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