A flame-retardant pressure-sensitive adhesive composition having both excellent tackiness and flame retardancy is described which comprises, as flame-retardants, (A) ethylenebispentabromobiphenyl, and (B) a brominated bisphenol and (C) antimony trioxide and, as a base polymer, (D) an acrylic polymer, said flame-retardant components (A), (B) and (C), in terms of weight ratio, satisfying the following equations: 2.ltoreq.[(A)+(B)]/(C).ltoreq.6 and (B).ltoreq.(A), and said [(A)+(B)] being added in an amount of from 30 to 90 parts by weight and said (B) being added in an amount of 15 parts by weight or greater, each based on 100 parts by weight of the base polymer (D); and a flame-retardant pressure-sensitive adhesive tape using the composition and electronic parts or a transformer utilizing the tape are also described.

Una composición adhesiva pressure-sensitive ignífuga que tiene tackiness excelente y retardancy de la llama se describe que abarque, como llama-retardadores, (a) ethylenebispentabromobiphenyl, y (b) un bisphenol brominated y (c) trióxido del antimonio y, como un polímero bajo, (d) polímero de acrílico, componentes ignífugos dichos (a), (b) y (c), en los términos del cociente del peso, satisfaciendo las ecuaciones siguientes: 2.ltoreq.[(A)+(B)]/(C).ltoreq.6 y (B).ltoreq.(A), y [ (A)+(B) ] adición dicha en una cantidad a partir de 30 a 90 porciones por el peso y (b) dicho siendo agregado en una cantidad de 15 porciones por el peso o mayor, cada uno basada en 100 porciones en peso de el polímero bajo (d); y una cinta adhesiva pressure-sensitive ignífuga usando la composición y los componentes electrónicos o un transformador que utiliza la cinta también se describe.

 
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