US 11,753,527 B2
Flame retardant composition and flame-retardant synthetic resin composition containing same
Michio Nakamura, Saitama (JP); Tsutomu Umeki, Saitama (JP); Tetsuo Kamimoto, Saitama (JP); and Genta Kokura, Saitama (JP)
Assigned to ADEKA CORPORATION, Tokyo (JP)
Appl. No. 16/490,916
Filed by ADEKA CORPORATION, Tokyo (JP)
PCT Filed Mar. 29, 2018, PCT No. PCT/JP2018/013141
§ 371(c)(1), (2) Date Sep. 4, 2019,
PCT Pub. No. WO2018/181676, PCT Pub. Date Oct. 4, 2018.
Claims priority of application No. 2017-072745 (JP), filed on Mar. 31, 2017.
Prior Publication US 2020/0010642 A1, Jan. 9, 2020
Int. Cl. C08K 5/52 (2006.01); C08K 3/32 (2006.01); C08K 5/18 (2006.01); C08K 5/3492 (2006.01); C09K 21/04 (2006.01); C09K 21/10 (2006.01); C08L 101/00 (2006.01)
CPC C08K 5/5205 (2013.01) [C08K 3/32 (2013.01); C08K 5/18 (2013.01); C08K 5/34922 (2013.01); C09K 21/04 (2013.01); C09K 21/10 (2013.01); C08K 2003/323 (2013.01); C08L 101/00 (2013.01); C08L 2201/02 (2013.01)] 11 Claims
 
1. A flame retardant composition comprising an amine (poly) phosphate and having an amine excess of 0.01 to 10 mol %, the amine excess being represented by formula (1):
Amine excess (mol %)=[Σ(An×Bn(mol))−phosphorus atoms (mol) contained in flame retardant composition]/phosphorus atoms (mol) contained in flame retardant composition×100   (1)
wherein n represents the number of the kinds of the amines in the amine (poly) phosphate; A1 to An each represent the maximum number of dissociation stages of the respective amines, the maximum number of dissociation stages being defined as the maximum number of the dissociation stages in which the base dissociation constant pKb is in the range of from 0 to 13 at 25° C.; and B1 to Bn each represent the number of moles of the respective amines of the amine (poly) phosphate when the amine is assumed to be present alone;
wherein the amine of the amine (poly) phosphate comprises melamine and piperazine, and further comprises at least one member selected from the group consisting of a monoalkylamine, a dialkylamine, a trialkylamine, an aromatic amine, a 5-membered aromatic heterocyclic amine with 2 to 4 carbon atoms, polycyclic aromatic heterocyclic amine with 5 to 12 carbon atoms, ethanolamine, and diethanolamine;
wherein said aromatic amine comprises an aromatic monoamine, an aromatic diamine or 1,3,5-triaminobenzene; and
wherein said monoalkylamine is of the formula R1NH2, wherein R1 represents a straight or branched chain alkyl group having 1 to 8 carbon atoms.