Catalysts for polyimide foams from aromatic isocyanates and arom

Details Catalysts for polyimide foams from aromatic isocyanates and arom Catalysts for polyimide foams from aromatic isocyanates and arom

1978-02-24

1979-12-04

Cockeram, H. S.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521125, 521127, 521157, 528 73, C08G 1814, C08G 1830, C08G 1822, C08G 1824

Patent

active

041773330

ABSTRACT:
Polyimide foam products having greatly improved burn-through and flame-spread resistance are prepared by the reaction of aromatic polyisocyanates with aromatic dianhydrides in the presence of metallic salts of octoic acid. The salts, for example stannous octoate, ferric octoate and aluminum octoate, favor the formation of imide linkages at the expense of other possible reactions.

REFERENCES:
patent: 3300420 (1966-02-01), Frey
patent: 3489696 (1970-01-01), Miller
patent: 3637543 (1972-01-01), Kus et al.
patent: 3697484 (1972-10-01), Zecher
patent: 3772216 (1973-11-01), Rosser
patent: 4026833 (1977-05-01), D'Alelio
patent: 4053439 (1977-11-01), Chylstek

Affiliated with

Also associated with

Rating

Catalysts for polyimide foams from aromatic isocyanates and arom does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Catalysts for polyimide foams from aromatic isocyanates and arom, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Catalysts for polyimide foams from aromatic isocyanates and arom will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-92156