Rhone-poulenc Specialites Chimiques

Ciba-geigy Corporation

Rene Dien

Yves Camberlin

Philippe Michaud

Michel Rakoutz

Guy Poulain

Impregnating solutions based on at least one reactive thermoplastic poly

Novel thermally stable bisimido/allylaniline polymers and prepolymers, well adopted for the production of prepregs and reinforced and impregnated composite shaped articles, comprise the copolymerizates of (a) at least one N,N'-bisimide, with (b) at least one hindered p-allylaniline, optionally in the presence of (c) an organic peroxide, azobisisobutyronitrile or an imidazole, (d) a vinylpyridine, N-vinylpyrrolidone, allyl isocyanurate, vinyltetrahydrofuran, or mixture thereof, (e) at least one diprimary diamine, and/or (f) an unhalogenated or chlorinated/brominated epoxy resin or N,N'-alkylenebistetrahalophthalimide, or particular (meth)acrylate or alkenylphenol.

Thermally stable bisimido/p-allylaniline copolymers

Novel, heat-stable imido polymers, well adopted, e.g., as coating or molding resins, comprise the polymerizates of (a) at least one N,N'-bismaleimide, (b) at least one diprimary diamine, and (c) at least one N-(meth)-allyloxyphenylmaleimide.

Polymer from (1) bis-imide, (2) allyloxy-phenyl maleimide and (3) diamine

Novel, heat-stable imido polymers, well adopted, e.g., as impregnants, or coating or molding resins, comprise the polymerizates of (a) at least one N,N'-bismaleimide, (b) at least one alkenyloxyaniline, and, optionally, (c) at least one N-(meth)allyloxyphenylmaleimide.

Imido polymer from bis imide and alkenyloxyaniline

Storage-stable, adhesive, flexible and mechanically improved thermosetting film-forming compositions are comprised of (A) an imido-hydroxylated organosilicon prepolymer, (B) triallyl isocyanurate or an acrylic ester of a diphenylated siloxane, (C) an imidazole, and (D) an N,N',N'-tris(hydroxyalkyl)hexahydrotriazine.

Storage-stable thermosetting compositions comprising an

Storage-stable thermosetting compositions, well adopted for molding or the production of prepregs, and characterized by the absense of gas release upon crosslinking, are comprised of (A) an imido/hydroxylated organosilicon compound prepolymer, (B) triallyl isocyanurate or an acrylic ester of an ethoxyphenylated siloxane, and (C) an imidazole compound.

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Millery, France

Rene Dien