Premixes for the preparation of polyurethane or polyisocyanurate

Details Premixes for the preparation of polyurethane or polyisocyanurate Premixes for the preparation of polyurethane or polyisocyanurate

1998-10-13

2000-07-11

Sergent, Rabon

Compositions

Compositions containing a single chemical reactant or plural...

Organic reactant

25218224, 25218227, 25218228, 25218229, 521114, 521116, 521117, 521130, 521131, 521170, 521171, 521172, 521174, 521902, C08J 914, C08K 502, C08K 505, C08K 5053

Patent

active

060867841

ABSTRACT:
Premixes intended for the preparation of polyurethane or polyisocyanurate foams comprising at least one polyol, at least one hydrofluoroalkane corresponding to the general formula CF.sub.3 --CR.sup.1 R.sup.2 --CF.sub.2 --R.sup.3, where R.sup.1 and R.sup.2 represent, independently, a hydrogen atom or an optionally fluorinated C.sub.1 -C.sub.3 alkyl group and where R.sup.3 represents a hydrogen atom or a methyl group, and at least one stabilizer chosen from nitroalkanee, diketones, alkaline-earth metal salts and brominated compounds.

REFERENCES:
patent: 5137929 (1992-08-01), Demmin et al.
patent: 5268120 (1993-12-01), Michaud
patent: 5268121 (1993-12-01), Michaud
patent: 5348681 (1994-09-01), Desbiendras et al.
patent: 5350534 (1994-09-01), Michaud
patent: 5366662 (1994-11-01), Barthelemy et al.
patent: 5395859 (1995-03-01), Demmin et al.
patent: 5407596 (1995-04-01), Mafoti et al.
patent: 5464560 (1995-11-01), Schilling et al.
patent: 5496866 (1996-03-01), Sommerfeld et al.
patent: 5561171 (1996-10-01), Demmin et al.
patent: 5561172 (1996-10-01), Omure et al.
patent: 5840779 (1998-11-01), Parker et al.
patent: 5856679 (1999-01-01), Barthelemy et al.
patent: 5895793 (1999-04-01), Kitamura et al.

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