Inorganic fiber having modified surface and its use for reinforc

Details Inorganic fiber having modified surface and its use for reinforc Inorganic fiber having modified surface and its use for reinforc

1993-08-31

1994-11-29

Michl, Paul R.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

523200, 523216, 523217, 524236, C08K 900

Patent

active

053691431

ABSTRACT:
Inorganic fiber such as carbon fiber is modified by a surface treatment with a dinitrodiamine compound represented by the formula of ##STR1## wherein X is a divalent aliphatic, alicyclic or aromatic group which may contain halogen or oxygen in the group, R.sup.1 is hydrogen, an aliphatic group, an alicyclic group or an aromatic group, with the proviso that two nitrogen atoms linking through X may further link through R.sup.1 when both X and R.sup.1 are the aliphatic groups, and R.sup.2 and R.sup.3 independently of one another are each hydrogen or an alkyl of 1 to 12 carbon atoms, with the proviso that R.sup.2 and R.sup.3 may conjointly form a ring. The inorganic fiber thus modified is useful for reinforcement of resins.

REFERENCES:
patent: 3756969 (1973-09-01), Danielson
patent: 3806489 (1974-04-01), Rieux et al.

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