Foam-forming mixtures with decreased decomposition of hydrohaloc

Details Foam-forming mixtures with decreased decomposition of hydrohaloc Foam-forming mixtures with decreased decomposition of hydrohaloc

1995-04-06

1995-11-07

Foelak, Morton

Compositions

Compositions containing a single chemical reactant or plural...

Organic reactant

25218227, 25218228, 25218229, 521130, 521170, 521172, 521174, C09K 300

Patent

active

054645603

ABSTRACT:
An organic acid having at least two carboxylic acid groups, no tertiary amino groups and a pK.sub.a of up to 3.1 is added to an HCFC blowing agent or to a composition, preferably an isocyanate-reactive composition, in which an HCFC blowing agent is present to reduce decomposition of the HCFC blowing agent. The resultant compositions are useful in the production of polyisocyanurate, polyurethane and/or polyurea foams.

REFERENCES:
patent: 5137929 (1992-08-01), Demmin et al.
Minimization of HCFC-141b Decomposition in Rigid Polyisocyanurate Foams, Bodnar et al 34th Annual Polyurethane Technical/Marketing Conference, Oct. 21-24, 1992, pp. 374-383.

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