Rhodia Operations

Solvay (china) Co., Ltd.

Rhodia Poliamida E Especialidades S.a.

Rhodia (china) Co. Ltd.

Rhodia Brasil S.a.

Tingting Zhang

Floryan De Campo

Junli Li

Annelyse Murillo

Ronaldo Nascimento

Darlene Felix

The present invention aims a new fragrance composition comprising a fragrance compound and a solvent or carrier, wherein at least 10% by weight based on the total weight of solvent and carrier of the fragrance composition is one or more specific low vapor pressure volatile organic compound (VOC). The new fragrance composition is particularly well adapted to air care devices like wicking or electrical systems (plug-in, reed diffusers . . . ).

Fragrance compositions and air care devices

A process for stabilizing hypophosphite salt is provided, which comprises the following steps: a) washing the hypophosphite salt at least one time under a controlled pH value of 4-11, preferably 5-8, as the said hypophosphite salt in an aqueous solution and/or in a solid state; and b) drying the said hypophosphite salt under reduced pressure to remove the volatiles. The process can prevent or minimize the formation of a dangerous quantity of phosphine from hypophosphite salts, more particularly in the flame retardant of the application. The flame retardant polymer composition is also provided, which comprises a polymer and the hypophosphite salt stabilized by the above process.

Process for stabilizing hypophosphite

The current invention relates to a process for stabilizing a hypophosphite salt, comprising the step of heating the hypophosphite salt at a temperature of between 150 and 370&#xb0; C. during a sufficient period of time to prevent the formation of a dangerous quantity of phosphine in their application as FR in polymers and a flame retardant polymer composition comprising a polymer and 0.1 to 30 weight percent based on the total weight of the composition of the hypophosphite salt thermally stabilized by the above process.

Process for stabilizing hypophosphite salts

Growing community of inventors

Shanghai, China

Tingting Zhang