Compositions – Fire retarding – For solid synthetic polymer and reactants thereof
Patent
1988-02-08
1990-01-16
Locker, Howard J.
Compositions
Fire retarding
For solid synthetic polymer and reactants thereof
252601, 524 89, 524 94, 548426, 548451, 548462, 548475, 548480, C09K 2100
Patent
active
048941875
ABSTRACT:
The invention relates to the preparation of halogenated imides derived from hydrazine and halogenated dicarboxylic acid anhydride and which can be used as flameproofing agents for plastics. The condensation of hydrazine and halogenated dicarboxylic acid anhydride is carried out in an aqueous medium, at a temperature ranging from 40.degree. to 225.degree. C., with a molar ratio of anhydride/hydrazine substantially equal to 2.
REFERENCES:
patent: 3382254 (1968-05-01), Jenkner et al.
patent: 3734925 (1973-05-01), Minieri
patent: 3798327 (1974-03-01), Minieri
patent: 3959219 (1976-05-01), Aoyama et al.
patent: 4003862 (1977-01-01), Albright
patent: 4087441 (1978-05-01), Lee
patent: 4254011 (1981-03-01), Bier
patent: 4284550 (1981-08-01), Mizuno et al.
patent: 4477523 (1984-10-01), Biggs et al.
Drew et al., "Chemiluminescent Organic Compounds, Part I., Isomeric Simple and Complex Hydrazides of Phthalic Acid and Mode of Formation of Phthalazine and Iso Indole Rings," Journal of the Chemical Society, pp. 16-36 (1937).
J. I. Jones, "The Reaction of Hydrazine with Polyimides, and its Utility," Journal of Polymer Science; pp. 773-784 (1969).
Bonnet Evelyne
Gagnieur Andre
Gurtner Bernard
Atochem
Locker Howard J.
LandOfFree
Flame resistant compositions and method of using same does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Flame resistant compositions and method of using same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flame resistant compositions and method of using same will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1333595