Polyurethane reactive composition

Details Polyurethane reactive composition Polyurethane reactive composition

2005-11-15

2005-11-15

Gorr, Rachel (Department: 1711)

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

Synthetic resins

From reactant having at least one -n=c=x group as well as...

C528S045000, C528S055000

Reexamination Certificate

active

06965008

ABSTRACT:
The invention relates to a polyurethane reactive composition comprising an isocyanate, an isocyanate reactive polymeric compound and a catalyst for the reaction of the isocyanate with the isocyanate reactive compound. The isocyanate reactive compound is a diol or a higher functional polyol of a polyester, of a polyester polyurethane, of a polycarbonate or of a mixture thereof, the polyester being derived from a hydroxy carboxylic acid or from its corresponding lactone, and the catalyst is a sterically hindered bismuth compound.

REFERENCES:
patent: 4788083 (1988-11-01), Dammann et al.
patent: 5574123 (1996-11-01), Bock et al.
patent: 5756634 (1998-05-01), Braunstein et al.
patent: 6258918 (2001-07-01), Ho et al.
patent: 9600754 (1996-01-01), None
Derwent Abstract, EP62780; Blum et al., 198285987E, Oct. 1982.
Derwent Abstract, EP431414, Grogler et al., 1991-172761, Jun. 1991.
Derwent Abstract, EP598873, Abend, 1994007471, Jun. 1994.
Derwent Abstract, EP103323, Groegler et al., 1984-050098, Mar. 1984.

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