Abstract:
There are provided: a flame retarding composition that is used for allowing a synthetic resin to be flame-retardant and is excellent in flame resistance and water resistance; a flame-retardant resin composition including it; and a molded article thereof. The flame retarding composition is powdery and includes a polyphosphate (A), the rate of particles (p2) having a particle diameter of 80 μm or more and less than 170 μm is 9 to 99.9% by volume in the flame retarding composition, the flame-retardant resin composition includes the flame retarding composition and a thermoplastic resin, and the molded article is formed using the flame-retardant resin composition.
Abstract:
Disclosed is a flame retardant composition that has excellent heat resistance and in which the risk of corroding processing machines at the time of compounding resin is reduced. The flame retardant composition includes 20 to 50 parts by mass of component (A) described below, 50 to 80 parts by mass of component (B) described below (the total of the component (A) and the component (B) is 100 parts by mass), and 0.01 to 5 parts by mass of component (C) described below:component (A): at least one type of melamine salt selected from melamine orthophosphate, melamine pyrophosphate, melamine polyphosphate, or a mixture including two or more types of the melamine salts;component (B): at least one type of piperazine salt selected from piperazine orthophosphate, piperazine pyrophosphate, piperazine polyphosphate, or a mixture including two or more types of the piperazine salts; andcomponent (C): a hydrotalcite compound.
Abstract:
Provided are: a flame retardant agent composition which has excellent flame retardancy as well as an excellent balance of dust suppression and powder flowability; a flame-retardant resin composition containing the same; and a molded article thereof. The flame retardant agent composition contains at least one phosphate compound represented by Formula (1) or (2). When the loose bulk density of the flame retardant agent composition is defined as d (g/cm3), and the 10% cumulative particle size and the 50% cumulative particle size of the flame retardant agent composition in a volume-based particle size distribution are defined as D10 (μm) and D50 (μm), respectively, d, D10 (μm), and D50 (μm) satisfy 0.030≤d/(D50−D10)≤0.110.
Abstract:
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 8.0×10−4≤F/N≤20.0 and F≤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.
Abstract:
This invention provides a flame retardant agent composition capable of imparting excellent flame retardancy to a synthetic resin, a flame-retardant resin composition having excellent flame retardancy as well as water resistance and impact resistance, and a molded body thereof. Provided is a flame retardant agent composition containing the following components (A) and (B): component (A): a phosphate-based flame retardant agent containing at least any one of the following components (A-1) to (A-3): component (A-1): one or more melamine salts selected from the group consisting of melamine orthophosphate, melamine pyrophosphate, and melamine polyphosphate; component (A-2): one or more piperazine salts selected from the group consisting of piperazine orthophosphate, piperazine pyrophosphate, and piperazine polyphosphate; and component (A-3): one or more ammonium salts selected from the group consisting of ammonium orthophosphate, ammonium pyrophosphate, and ammonium polyphosphate; and component (B): one or more acid-modified polyolefins.
Abstract:
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.
Abstract:
Provided are: a polyphosphate amine salt composition which does not foam during processing, has excellent workability and excellent weather resistance, and can impart excellent flame retardancy to synthetic resins; a polyphosphate amine salt flame retardant composition; a flame-retardant synthetic resin composition containing the same; and a molded article thereof. The polyphosphate amine salt composition contains an orthophosphate amine salt and a polyphosphate amine salt, and the orthophosphate amine salt is contained in an amount of 0.1 to 6.0% by mass. An amine in the polyphosphate amine salt composition is preferably melamine or piperazine.
Abstract:
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 A1-An represent 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° C. in the 0-13 range. B1-Bn represent the number of mol of the amine when an amine is assumed to be present alone in the (poly)phosphoric acid amine salt.
Abstract:
A process for producing a pyrophosphate, particularly melamine pyrophosphate useful as a flame retardant, efficiently in high yield is provided. The process includes firing an orthophosphate, preferably melamine orthophosphate, in the presence of a silicone oil, preferably methylphenyl silicone oil preferably at 120° to 350° C. Examples of useful firing equipment include a hot air dryer, a kneader, a Henschel mixture, a fluidized bed dryer, a rotary kiln, a paddle dryer, an extruder, a vibrating dryer, a far-infrared conveyor furnace, and a microwave firing furnace.