A flame-retardant compound, a process for forming a flame-retardant compound, and an article of manufacture are disclosed. The flame-retardant compound includes a tetrazine moiety and at least one organophosphorus moiety. The process includes obtaining starting materials, which include a benzonitrile compound, a phosphorus-based compound, and hydrazine. The process also includes reacting the starting materials to form a tetrazine flame retardant. The article of manufacture includes a polymer and a flame-retardant compound having a tetrazine moiety and at least one organophosphorus moiety.

A flame-retardant compound, a process for forming a flame-retardant compound, and an article of manufacture are disclosed. The flame-retardant compound includes a tetrazine moiety and at least one organophosphorus moiety. The process includes obtaining starting materials, which include a benzonitrile compound, a phosphorus-based compound, and hydrazine. The process also includes reacting the starting materials to form a tetrazine flame retardant. The article of manufacture includes a polymer and a flame-retardant compound having a tetrazine moiety and at least one organophosphorus moiety.

Scavenging compounds and compositions useful in reducing sulfide emissions from asphalt, such as polymer-treated asphalt, are disclosed. The scavenger compositions may include sulfide-scavenging agents. The scavenger compositions also include a metal-containing compound and optionally a solvent. Any of the compositions, sulfide-scavenging agents and metal-containing compounds may be anhydrous. Methods of using the compositions to reduce hydrogen sulfide emissions from asphalt are also disclosed.

Scavenging compounds and compositions useful in reducing sulfide emissions from asphalt, such as polymer-treated asphalt, are disclosed. The scavenger compositions may include sulfide-scavenging agents. The scavenger compositions also include a metal-containing compound and optionally a solvent. Any of the compositions, sulfide-scavenging agents and metal-containing compounds may be anhydrous. Methods of using the compositions to reduce hydrogen sulfide emissions from asphalt are also disclosed.

Treated wood composite materials including a wood component and a plastic component are disclosed. The wood component can include wood flour. The treated wood composite materials can further include a treatment formulation. The treatment formulation can be applied to the wood composite materials at various stages in the manufacturing process, and can also be applied in various ways.

Treated wood composite materials including a wood component and a plastic component are disclosed. The wood component can include wood flour. The treated wood composite materials can further include a treatment formulation. The treatment formulation can be applied to the wood composite materials at various stages in the manufacturing process, and can also be applied in various ways.

A flame-retardant thermoplastic polyurethane resin composition is provided, containing: a thermoplastic polyurethane resin; at least one melamine salt selected from the group consisting of melamine orthophosphate, melamine pyrophosphate, and melamine polyphosphate; at least one piperazine salt selected from the group consisting of piperazine orthophosphate, piperazine pyrophosphate, and piperazine polyphosphate; and wet process silica having an oil absorption of 200 ml/100 g or more. The composition preferably contains zinc oxide.

A flame-retardant thermoplastic polyurethane resin composition is provided, containing: a thermoplastic polyurethane resin; at least one melamine salt selected from the group consisting of melamine orthophosphate, melamine pyrophosphate, and melamine polyphosphate; at least one piperazine salt selected from the group consisting of piperazine orthophosphate, piperazine pyrophosphate, and piperazine polyphosphate; and wet process silica having an oil absorption of 200 ml/100 g or more. The composition preferably contains zinc oxide.

Provided is an additive for imparting low heat build-up to a rubber component, wherein the additive includes a tetrazine compound represented by general formula (1):

##STR00001##

(wherein X.sup.1 and X.sup.2 are the same or different and represent a hydrogen atom or an alkyl, alkylthio, aralkyl, aryl, arylthio, heterocyclic, or amino group; and each of these groups may have one or more substituents), or a salt thereof.

Provided is an additive for imparting low heat build-up to a rubber component, wherein the additive includes a tetrazine compound represented by general formula (1):

##STR00001##

(wherein X.sup.1 and X.sup.2 are the same or different and represent a hydrogen atom or an alkyl, alkylthio, aralkyl, aryl, arylthio, heterocyclic, or amino group; and each of these groups may have one or more substituents), or a salt thereof.