The present invention relates to the use of specific eugenol derivatives as stabilizers of organic materials against oxidative, thermal and/or actinic degradation. The present invention also relates to stabilized organic material and to specific eugenol derivatives which are suitable as stabilizers.

The present invention relates to the use of specific eugenol derivatives as stabilizers of organic materials against oxidative, thermal and/or actinic degradation. The present invention also relates to stabilized organic material and to specific eugenol derivatives which are suitable as stabilizers.

Polyurethane resin compositions are used to seal objects such as electrical and electronic components in order to provide protection from condensation and contamination. Such polyurethane resin compositions are often used in high-temperature environments. Thus, a polyurethane resin composition having high heat resistance is provided.

The polyurethane resin composition is obtained by reacting a hydroxyl-group-containing compound (A) with an isocyanate-group-containing compound (B) and contains an antioxidant (C) having an alkylthio group.

Polyurethane resin compositions are used to seal objects such as electrical and electronic components in order to provide protection from condensation and contamination. Such polyurethane resin compositions are often used in high-temperature environments. Thus, a polyurethane resin composition having high heat resistance is provided.

The polyurethane resin composition is obtained by reacting a hydroxyl-group-containing compound (A) with an isocyanate-group-containing compound (B) and contains an antioxidant (C) having an alkylthio group.

A compound having the following formula (I): ##STR00001##
is disclosed. A method of preparing the compound of formula (I) is also disclosed.

A compound having the following formula I: ##STR00001##
is disclosed. A method of preparing the compound of formula I is also disclosed.

A compound having the following formula I: ##STR00001##
is disclosed. A method of preparing the compound of formula I is also disclosed.

Antifoulant compositions and methods are used for inhibiting fouling on structural parts of a system exposed to a fluid hydrocarbon or petrochemical stream. The antifoulant compositions may comprise at least one polyalkylene anhydride ester (PAAE) dispersant. Other antifoulant compositions may comprise an alkylphenol sulfide (APS).

Antifoulant compositions and methods are used for inhibiting fouling on structural parts of a system exposed to a fluid hydrocarbon or petrochemical stream. The antifoulant compositions may comprise at least one polyalkylene anhydride ester (PAAE) dispersant. Other antifoulant compositions may comprise an alkylphenol sulfide (APS).

The present invention provides a titanium ligand-modified black phosphorus and the preparation method and use thereof. The titanium ligand-modified black phosphorus is a complex of black phosphorus and a titanium ligand having a structure represented by formula (I): ##STR00001##
wherein in the formula (I), R.sub.1 comprises C.sub.1-C.sub.6 alkyl, or phenyl optionally further substituted with 0 to 5 groups each independently selected from halogen atom, C.sub.1-C.sub.6 alkyl, nitro, hydroxy, amino or C.sub.1-C.sub.3 alkoxy; the C.sub.1-C.sub.6 alkyl or C.sub.1-C.sub.3 alkoxy is optionally further substituted with 0 to 3 groups each independently selected from halogen atom, nitro, hydroxy, amino, methyl, ethyl or n-propyl. The titanium ligand-modified black phosphorus of the present invention is not likely oxidized without changing inherent properties of the black phosphorus, and the antioxidant capacity is greatly enhanced.