Adeka Corporation

Genta Kokura

Michio Nakamura

Yutaka Yonezawa

Yuri Yokota

Tetsuo Kamimoto

Kohei Omori

Yang Ni

Tomomasa Tezuka

Kei Asai

Tatsuya Shimizu

Yohei Inagaki

Tsutomu Umeki

Provided are: a phosphate amine salt composition which can be used as a flame retardant that is capable of imparting excellent flame retardancy and weather resistance to synthetic resins without a risk of corroding a processing machine; a phosphate amine salt flame retardant composition; a flame-retardant synthetic resin composition containing the same; and a molded article thereof. The phosphate amine salt composition contains at least one phosphate amine salt, and the ammonium cation content therein is 100 to 2,000 ppm by mass. An amine in the phosphate amine salt composition is preferably melamine or piperazine.

Phosphate amine salt composition, phosphate amine salt flame retardant composition, flame retardant synthetic resin composition containing same, and molded article of flame retardant synthetic resin composition

In a flame retardant composition containing (poly)phosphoric acid amine salts, the amine excess ratio (mol %) represented by formula (I) is 0.01-10 mol %. In the formula, n represents the number of types of amines in the (poly)phosphoric acid amine salt, and A-Arepresent the maximum number of dissociation steps of each amine. Here, the maximum number of dissociation steps is the maximum number of dissociation steps with a base dissociation constant pKb at 25&#xb0; C. in the 0-13 range. B-Brepresent the number of mol of the amine when an amine is assumed to be present alone in the (poly)phosphoric acid amine salt.

Flame retardant composition and flame-retardant synthetic resin composition containing same

A flame retardant composition according to the present invention is a phosphate-based flame retardant including a (poly)phosphate, in which F and N satisfy 8.0&#xd7;10&#x2264;F/N&#x2264;20.0 and F&#x2264;21.0, assuming that F (ppm) is a content of elemental iron and N (ppm) is a content of elemental sodium in the flame retardant composition as measured in accordance with the following procedure.

Flame retardant composition, flame-retardant resin composition using same, molded article, and method for producing molded article

A flame retardant composition containing a piperazine phosphate, a melamine phosphate, and an oil having a siloxane bond and a specific gravity of 0.930 to less than 0.970 at 25&#xb0; C. The oil is present in an amount of 0.01 to 5 parts by mass per 100 parts by mass of the sum of the piperazine phosphate and the melamine phosphate. The flame retardant composition preferably further contains 0.01 to 5 parts by mass, per 100 parts by mass of the sum of the piperazine phosphate and the melamine phosphate, of a methylhydrogen silicone oil having hydrogen as part of the side chains of polysiloxane and a specific gravity of 0.970 to less than 1.01 at 25&#xb0; C.

Flame retardant composition and flame-retardant resin composition containing same

Disclosed is a flame retardant composition having excellent flame retardancy and processability, providing a flame-retardant synthetic resin composition including this flame retardant composition and having excellent flame retardancy and processability. Specifically, the following components are used in combination: as component (A), 20 to 50 parts by mass of at least one type of melamine salt selected from the group consisting of melamine orthophosphate, melamine pyrophosphate, and melamine polyphosphate; as component (B), 50 to 80 parts by mass of at least one type of piperazine salt selected from the group consisting of piperazine orthophosphate, piperazine pyrophosphate, and piperazine polyphosphate (the total of component (A) and component (B) is 100 parts by mass); and as component (C), 0.01 to 20.0 parts by mass of a bicyclophosphoric ester compound represented by the following general formula (1). The details of formula (1) are as described in the Description.

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Genta Kokura