Flame-retardant resin composition containing a bromostyrene prep

Details Flame-retardant resin composition containing a bromostyrene prep Flame-retardant resin composition containing a bromostyrene prep

1990-11-28

1993-06-29

Henderson, Christopher

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

260DIG24, C08F21416, C08F21200

Patent

active

052235947

ABSTRACT:
A flame-retardant resin composition contains a prepolymer represented by the general formula: ##STR1## wherein R.sub.1 stands for a hydrogen atom or an unreactive saturated group; R.sub.2 stands for a reactive unsaturated group; m and n each stand for a positive number of 1 to 4 and X and Y are each a copolymerization ratio and are in the range of 0.3 to 0.7 with the proviso that the sum total of X and Y is 1,
as an essential component. The flame retardant resin composition is curable with uniform crosslinking density and without substantial stress concentration and is suitable for producing a laminate for a multilayer printed wiring board having a high thermal impact resistance as well as excellent heat resistance and

REFERENCES:
patent: 3845022 (1974-10-01), Ray-Chaudhuri
European Patent Application 0,202,488 Nov. 26, 1986.

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