Abstract:
The present invention relates to the use of aromatic P-piperazine-compounds in flame retardant polymer compositions. These compositions are especially useful for the manufacture of flame retardant compositions based on thermoplastic polymers, especially polyolefin homo-and copolymers, polycondensates, such as polyamines or polyesters and duroplastic polymers, such as polyepoxides.
Abstract:
The invention relates to a flame-retardant system comprising: a) at least one sulfur compound of the formula (I), where the definitions of the symbols and indices are as follows: R, being identical or different, preferably identical, is C6-C12-aryl, a 5-10-membered heteroaryl group which comprises one or more heteroatoms from the group of N, O, and S, C1-C18-alkyl, C2-C18-alkenyl, C3-C18-alkynyl, or C3-C10-cycloalkyl; X, being identical or different, preferably identical, is OR2, SR2, NR2R3, COOR2, CONR2, SO2R2, F, Cl, Br, R, H, or a -Y1-P(Y2)pR'R'' group; Y1 is O, S, or NR'''; Y2 is O or S; p is 0 or 1; R' and R'', being identical or different, preferably identical, are C1-C18-alkyl, C2-C18-alkenyl, C2-C18-alkynyl, C6-C12-aryl, C3-C10-cycloalkyl, C6-C12-aryl-C1-C18-alkyl, a heteroaryl group or heteroaryloxy group which comprises one or more heteroatoms from the group of N, O, and S, O-(C1-C18)-alkyl, O-(C2-C18)-alkenyl, O-(C2-C10)-alkynyl, O-(C6-C12)-aryl, O-(C3-C10)-cycloalkyl or (C6-C12)-aryl-(C1-C18)-alkyl-O; R''' is H, C1-C18-alkyl, or (P(Y2)pR'R''); R1, being identical or different, preferably identical, is C1-C18-alkyl, C2-C18-alkenyl, C2-C18-alkynyl, C6-C12-aryl, C3-C10-cycloalkyl, C6-C12-aryl-C1-C18-alkyl, a heteroaryl group which comprises one or more heteroatoms from the group of N, O, and S, O-(C1-C18)-alkyl, O-(C2-C18)-alkenyl, O-(C3-C18)-alkynyl, O-(C6-C12)-aryl, O-(C3-C10)-cycloalkyl, (C6-C12)-aryl-(C1-C18)-alkyl-O, S-(C1-C18)-alkyl, S-(C1-C18)-alkenyl, S-(C2-C18)-alkynyl, S-(C6-C12)-aryl, S-(C3-C10)-cycloalkyl, (C6-C12)-aryl-(C1-C18)-alkyl-S, OH, F, Cl, Br or H; R2 and R3,being identical or different, preferably identical, are H, C1-C18-alkyl, C2-C18-alkenyl, C2-C18-alkynyl, C6-C12-aryl, C3-C10-cycloalkyl, C6-C12-aryl-C1-C18-alkyl, or a heteroaryl group which comprises one or more heteroatoms from the group of N, O, and S; n is an integer from 1 to 8, and m is a number from 1 to 1000; b) at least one halogen-free organophosphorus compound with phosphorus content in the range from 0.5 to 40% by weight, based on the phosphorus compound.
Abstract:
The invention relates to curable compounds that comprise epoxy resins, amino hardeners and a phosphonate from formula (I). By adding of phosphonate from formula (I), hardened epoxy resins are obtained according to the invention, which hardened epoxy resins have both an improved fire retardancy and an increased glass transition temperature relative to the corresponding resins without said addition.
Abstract:
The invention relates to the use of 1, 3 substituted imidazolium salts of the formula (I), R1 and R3 independently representing an organic group having 1 to 20 C atoms, R2, R4, and R5 independently representing a H atom or an organic group having 1 to 20 C atoms, R4 and R5 also together being able to form an aliphatic or aromatic ring, and X representing a thiocyanate anion as a latent catalyst for curing compositions comprising epoxy compounds.
Abstract:
The invention relates to a flame retardant containing a) at least one sulphur compound of formula (I), A1-( Z1)m- (S)n- (Z2)p- A2 (l) wherein the symbols and indices have the following meanings, A1, A2 are both or independently of one another C6-C12 aryl, cyclohexyl, Si(ORa)3, a saturated, partially unsaturated or aromatic, monocyclic or bicyclic ring having 3 to 12 ring members which contains one or more heteroatoms from the group N, O and S, and is unsubstituted or is substituted by one or more substituents of the group O, OH, S, SH, COORb, CONRcRd, C1-C18 alkyl, C1-C18 alkoxy, C1-C18 thioalkyl, C6-C12 aryl, C6-C12 aryloxy, C2-C18 alkenyl, C2-C18 alkenoxy, C2-C18 alkinyl and C2-C18 alkinoxy; Z1, Z2 are both or independently of one another -CO- or -CS-; Ra is C1-C18 alkyl; Rb, Rc, Rd are both or independently of one another H, C1-C18 alkyl, C6-C12 aryl or an aromatic, monocyclic or bicyclic ring having 3 to 12 ring members which contains one or more heteroatoms from the group N, O and S; m, p are both or independently of one another 0 or 1 and n is a natural number from 2 to 10, and b) at least one halogen-free organic phosphorus compound having a phosphorus content in the range from 5 to 80 wt %, based on the phosphorus compound, is suitable in particular for protection of foams based on styrene polymers.
Abstract:
The invention relates to the use of 1,3-substituted imidazolium salts of formula (I), wherein R1 and R3 independently represent an organic group with 1 to 20 C atoms, R2, R4, and R5 independently represent an H atom or an organic group with 1 to 20 C atoms, with R4 and R5 being capable of forming together an aliphatic or aromatic ring, X represents the anion of an oxygen acid of phosphorus, and n is 1, 2 or 3, as latent catalyst for curing compositions that contain epoxy compounds.
Abstract:
The invention relates to the use of 1,3-substituted imidazolium salts of formula (I), wherein R1 and R3 independently represent an organic group with 1 to 20 C atoms, R2, R4, and R5 independently represent an H atom or an organic group with 1 to 20 C atoms, with R4 and R5 being capable of forming together an aliphatic or aromatic ring, X represents the anion of an oxygen acid of phosphorus, and n is 1, 2 or 3, as latent catalyst for curing compositions that contain epoxy compounds.
Abstract:
The invention relates to the use of 1, 3 substituted imidazolium salts of the formula (I), R1 and R3 independently representing an organic group having 1 to 20 C atoms, R2, R4, and R5 independently representing a H atom or an organic radical having 1 to 20 C atoms, R4 and R5 also together being able to form an aliphatic or aromatic ring, and X representing a dicyanamide anion as a latent catalyst for curing compositions comprising epoxy compounds.