Phosphorus-containing compound

Details Phosphorus-containing compound Phosphorus-containing compound

2006-01-10

2006-01-10

Truong, Duc (Department: 1711)

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

Synthetic resins

From phosphorus-containing reactant

C528S400000, C528S244000, C528S487000, C528S495000

Reexamination Certificate

active

06984716

ABSTRACT:
A phosphorus-containing compound represented by formula (I) and a preparation method thereof are provided. An addition reaction is performed for an organic cyclic phosphorus compound with an aryl aldehyde compound, and then a condensation reaction is performed with an aryl compound having active hydrogen in the use of an organic acid as a catalyst to obtain the proposed phosphorus-containing compound. This phosphorus-containing compound can be used as a hardener for resin, and improves flame retardant properties and thermal resistance for a flame retardant epoxy resin composition, thereby suitably applied to resin compositions used for manufacturing printed circuit boards and laminated circuit boards in electronic or electric products.

REFERENCES:
patent: 6441067 (2002-08-01), Chiu et al.

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