Threebond Co., Ltd.

Minami Hanada

Kazuhiro Kojima

Naoki Sato

Ikuzo Usami

Kunihiko Nakajima

Makoto Kurihara

Yumi Oka

Isao Noguchi

Kenichi Tomihara

Fluid gasket composition with fine rubber particles has sufficient elasticity. The particle size of the rubber particles contained in the fluid gasket composition is desired to be 0.1 to 3.0 mm. The fluid gasket composition applied to a joint portion between mechanical parts or the like exhibits an effect of sealing and absorbing vibrations, dislocation and mechanical movements taking place in the mechanical parts.

Fluid gasket composition

Adhesive composition consisting of microcapsules containing compounds

A self-locking agent for a fastening device comprises a microencapsulated adhesive composition comprising the following constituents (a) to (c): (a) an epoxy compound having at least two epoxy groups, (b) an aromatic diamine represented by the following formula (a) or (b): ##STR1## wherein R.sub.1 to R.sub.4 each represent CH.sub.3, C.sub.2 H.sub.5, C.sub.3 H.sub.7, CH(CH.sub.3).sub.2, C.sub.4 H.sub.9 or a halogen, or ##STR2## wherein R.sub.5 to R.sub.7 each represent CH.sub.3, C.sub.2 H.sub.5, C.sub.3 H.sub.7 or a halogen, and (c) at least one compound selected from the group consisting of thiosalicylic acid, salicylic acid, benzoic anhydride, boron trifluoride and boron trifluoride complexes, wherein at least one of the epoxy compound (a) and aromatic diamine (b) is microencapsulated to keep them apart from each other, said self-locking agent has excellent thermal resistance and storage stability.

Self-locking agent

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Hachioji, Japan

Minami Hanada