B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 27/04 (2006.01) C08G 73/00 (2006.01) C08G 73/10 (2006.01) C08G 83/00 (2006.01) C08K 7/02 (2006.01) C08K 9/00 (2006.01) C08K 9/08 (2006.01) C08L 79/00 (2006.01) C08L 99/00 (2006.01)
Patent
CA 2304637
A fiber-reinforced phthalonitrile composite is made by impregnating or coating a fibrous material with a phthalonitrile prepolymer mixture containing a phthalonitrile monomer and an aromatic amine curing agent that is thermally stable and nonvolatile at a temperature up to about 375 °C, and that contains at least one electron withdrawing substituent effective to reduce the reactivity of the aromatic amine curing agent with the phthalonitrile monomer.
L'invention concerne un composite de phtalonitrile renforcé aux fibres, fabriqué par imprégnation ou revêtement d'une substance fibreuse avec un mélange prépolymère de phtalonitrile, renfermant un monomère de phtalonitrile et un agent de durcissement à base d'amine aromatique. Cet agent, qui est thermiquement stable et non volatil à une température pouvant atteindre environ 375 DEG C, renferme au moins un substituant attracteur d'électrons, permettant de réduire efficacement la réactivité dudit agent de durcissement à base d'amine aromatique avec le monomère de phtalonitrile.
Keller Teddy M.
Sastri Satya B.
Perry + Currier
The Government Of The United States Of America As Represented By The Se Cretary Of The Navy
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