公开(公告)号：US11753527B2

公开(公告)日：2023-09-12

申请号：US16490916

申请日：2018-03-29

Applicant: ADEKA CORPORATION

Inventor： Michio Nakamura ,  Tsutomu Umeki ,  Tetsuo Kamimoto ,  Genta Kokura

IPC: C08K5/52 ,  C08K3/32 ,  C08K5/18 ,  C08K5/3492 ,  C09K21/04 ,  C09K21/10 ,  C08L101/00

CPC classification number: C08K5/5205 ,  C08K3/32 ,  C08K5/18 ,  C08K5/34922 ,  C09K21/04 ,  C09K21/10 ,  C08K2003/323 ,  C08L101/00 ,  C08L2201/02

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.