Abstract: The chemiluminescent device has a luminous body capable of generating light through a chemiluminescent reaction, and an outer layer for covering the luminous body. The outer layer is made of closed-cell plastic foam having a forming ratio in the range of 3 to 50%, preferably in the range of 20 to 30%. Closed-cell foamed polyethylene having no adverse environmental effect may be advantageously used as the closed-cell plastic foam. The chemiluminescent device having the outer layer made of closed-cell plastic foam provides increased luminous area, unsusceptibility to ambient temperature, and enhanced softness and shock-absorbability to achieve satisfactory luminescent effect, safety and reliability. The outer layer may have an outer surface formed with an irregularity to provide further enhanced luminescent effect.

Abstract: The chemiluminescent device has a luminous body capable of generating light through a chemiluminescent reaction, and an outer layer for covering the luminous body. The outer layer is made of closed-cell plastic foam having a forming ratio in the range of 3 to 50%, preferably in the range of 20 to 30%. Closed-cell foamed polyethylene having no adverse environmental effect may be advantageously used as the closed-cell plastic foam. The chemiluminescent device having the outer layer made of closed-cell plastic foam provides increased luminous area, unsusceptibility to ambient temperature, and enhanced softness and shock-absorbability to achieve satisfactory luminescent effect, safety and reliability. The outer layer may have an outer surface formed with an irregularity to provide further enhanced luminescent effect.

Abstract: This invention relates to a biphenylmethane derivative represented by the formula (1): ##STR1## wherein A represents a group ##STR2## in which R.sup.1, X, Y, Z and B are as defined in the Specification. The compounds have potent angiotensin II antagonist activity and anti-hypertensive effect. They have therapeutic utility for circulatory diseases such as hypertension, heart diseases and cerebral apoplexy.

Abstract: Isoindoline derivatives represented by the formula (I) and their salts are disclosed. ##STR1## There are many varieties for the compound depending on the types of residues R.sup.1 -R.sup.9 and X. The compounds can be prepared from quinoline derivatives of the formula (II) and an isoindoline derivatives of the formula (III). The compounds of formula (I) and their salts have excellent antibacterial activities against both gram positive and gram negative microorganisms. They can be used as a medicine, an agrichemical, and a food preservative.