Blowing agents and their use in preparations of polyester foams

Details Blowing agents and their use in preparations of polyester foams Blowing agents and their use in preparations of polyester foams

1984-08-20

1986-11-18

Foelak, Morton

Compositions

Preservative agents

Anti-corrosion

423284, 423286, 521 85, 521105, 564 8, C09K 300

Patent

active

046234799

ABSTRACT:
Quaternary ammonium borohydrides of the formula ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 may be same or different and each is selected from alkyl, alkenyl, cycloalkyl, aryl, alkaryl and aralkyl groups and R.sup.4 is selected from alkyl and alkenyl groups having from 1 to 30 carbon atoms, with the proviso that R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are not all alkyl or that R.sup.1, R.sup.2 or R.sup.3 is not benzyl when the remainder of R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are all methyl or ethyl. The new borohydrides are prepared by either mixing a borohydride salt and a quaternary ammonium salt in alkaline aqueous solution and extracting the resulting quaternary amine borohydride with an organic solvent or by reacting finely divided borohydride salt with an organic solution of quaternary ammonium salt. The new compounds are used for foaming polyester resins.

REFERENCES:
patent: 3108139 (1963-10-01), Larchar
patent: 3475138 (1969-10-01), Carvalho
patent: 3620807 (1971-11-01), Murray
patent: 3667923 (1972-06-01), Wade
patent: 4216168 (1980-08-01), Evans et al.
"Boron, Metallo-Boron Compounds and Boranes", Roy M. Adams _Interscience Publishers, Chapter 6.
"Progress in Organic Chemistry", B. D. James et al, vol. 11, Interscience Publishers (1970), pp. 99-175.
Comprehensive Inorganic Chemistry", J. C. Bailar, Jr. et al, Pergamon Press, copyright 1973, pp. 752 and 753.

Affiliated with

Also associated with

Rating

Blowing agents and their use in preparations of polyester foams does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Blowing agents and their use in preparations of polyester foams, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Blowing agents and their use in preparations of polyester foams will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1616432