Adhesive film - consisting of cresol-formaldehyde resin, epoxy resins, acrylonitrile-butadiene copolymer and boron trif

摘要

Adhesive film consists of (I) 95-115, pref. 95 pts. wt. resol prepd. from cresol and formaldehyde, (II) 47.5-57.5, pref. 47.5 pts. wt. epoxy resin which is liquid at room temp. (III) 74.5-57.5, pref. 57.5 pts. wt. epoxy resin which is solid at room temp. (IV) 45 pts. wt. acrylonitrile-butadiene copolymer which is liquid at room temp. (V) 45 pts. wt. acrylonitrile-butadiene copolymer which is solid at room temp. and (VI) 7.2-12.5 pref. 12.5 pts. wt. BF3-ethylamine. Used for bonding metals, glass and ceramics. The adhesive film is non-tacky at room temp. and is not sensitive towards moisture and oxygen.