Self-flame-retardant copolyesteramide
The invention relates to a self-retardant copolyesteramide, characterised in that it is obtained by means of polycondensation of at least one polyamide monomer with at least one phosphorus-containing diol. The invention also relates to the use of such a copolyesteramide according to the invention for the manufacture of electrical and/or electrotechnical objects, tubes, cables, electrical safety objects, moulded objects, and/or objects obtained by 3D printing.
1 . A self-flame-retardant copolyesteramide, wherein it is obtained by polycondensation of at least one polyamide monomer with at least one phosphorus-containing diol,
wherein the phosphorus-containing diol is selected from oligomeric phosphonate diols of formula:
in which:
R 1 represents a methyl, ethyl, propyl, butyl or isobutyl group, or a group —[—O—R 4 ] in which R 4 represents a methyl, ethyl, propyl or butyl group,
R 2 and R 3 are identical or different and represent a methylene, ethylene or propylene group, and
x and y are identical or different and each represent a number from 1 to 10.
2 . The copolyesteramide as claimed in claim 1 , wherein
R 1 represents a methyl, ethyl or propyl group,
R 2 and R 3 are identical or different and represent a methylene, ethylene or propylene group and x and y each represent a number from 1.2 to 1.9.
3 . The copolyesteramide as claimed in claim 2 , wherein R 1 represents a methyl group and x and y each represent a number from 1.5 to 1.7.
4 . The copolyesteramide as claimed in claim 1 , wherein said at least one polyamide monomer is selected from the following polyamide monomers: 12, 11, 6, 59, 510, 512, 513, 514, 516, 518, 536, 69, 610, 612, 613, 614, 616, 618, 636, 109, 1010, 1012, 1013, 1014, 1016, 1018, 1036, 10T, 129, 1210, 1212, 1213, 1214, 1216, 1218, 1236, 9T, 10T, 11T, 12T, and mixtures thereof.
5 . The copolyesteramide as claimed in claim 1 , wherein the percentage by weight of atomic phosphorus in the copolymer is within a range from 0.1% to 10%, based on the total weight of copolyesteramide, which represents 100%.
6 . The copolyesteramide as claimed in claim 1 , wherein it further comprises at least one other difunctional polymer block having terminal alcohol or amine functions.
7 . The copolyesteramide as claimed in claim 6 , wherein said polymer is selected from: polyether; polyester; polysiloxane; polyolefin; polycarbonate; and mixtures thereof.
8 . A self-flame-retardant copolyesteramide, wherein it is obtained by polycondensation of at least one polyamide monomer with at least one phosphorus-containing diol,
wherein the phosphorus-containing diol is selected from oligomeric phosphonate diols of formula:
in which:
R 1 represents a methyl, ethyl, propyl, butyl or isobutyl group, or a group —[—O—R 4 ] in which R 4 represents a methyl, ethyl, propyl or butyl group,
R 2 and R 3 are identical or different and represent a methylene, ethylene or propylene group, and
x represents a number from 1 to 10.
9 . The copolyesteramide as claimed in claim 8 , wherein said at least one polyamide monomer is selected from the following polyamide monomers: 12, 11, 6, 59, 510, 512, 513, 514, 516, 518, 536, 69, 610, 612, 613, 614, 616, 618, 636, 109, 1010, 1012, 1013, 1014, 1016, 1018, 1036, 10T, 129, 1210, 1212, 1213, 1214, 1216, 1218, 1236, 9T, 10T, 11T, 12T, and mixtures thereof.
10 . The copolyesteramide as claimed in claim 8 , wherein the percentage by weight of atomic phosphorus in the copolymer is within a range from 0.1% to 10%, based on the total weight of copolyesteramide, which represents 100%.
11 . The copolyesteramide as claimed in claim 8 , wherein it further comprises at least one other difunctional polymer block having terminal alcohol or amine functions.
12 . The copolyesteramide as claimed in claim 11 , wherein said polymer is selected from: polyether; polyester; polysiloxane; polyolefin; polycarbonate; and mixtures thereof.
13 . A non-halogenated flame-retardant composition, wherein comprises at least one copolyesteramide as claimed in claim 1 diluted in a thermoplastic polymer matrix.
14 . The composition as claimed in claim 13 , wherein said polymer matrix comprises at least one homopolymeric or copolymeric thermoplastic polymer selected from: polyolefins, polyamides, fluoropolymers, saturated polyesters, polycarbonate, styrene resins, PMMA, thermoplastic polyurethanes (TPUs), ethylene-vinyl acetate (EVA) copolymers, copolymers having polyamide blocks and polyether blocks, copolymers having polyester blocks and polyether blocks, copolymers having polyamide blocks, polyether blocks and polyester blocks, copolymers of ethylene and an alkyl (meth)acrylate, copolymers of ethylene and vinyl alcohol (EVOH), ABS, SAN, ASA, polyacetal, polyketones, and mixtures thereof.
15 . The composition as claimed in claim 13 , comprising from 1% to 99% by weight of said copolyesteramide and from 1% to 99% by weight of said polymer matrix, based on the total weight of the composition, which represents 100%.
16 . A non-halogenated flame-retardant composition, wherein comprises at least one copolyesteramide as claimed in claim 8 diluted in a thermoplastic polymer matrix.
17 . The composition as claimed in claim 16 , wherein said polymer matrix comprises at least one homopolymeric or copolymeric thermoplastic polymer selected from: polyolefins, polyamides, fluoropolymers, saturated polyesters, polycarbonate, styrene resins, PMMA, thermoplastic polyurethanes (TPUs), ethylene-vinyl acetate (EVA) copolymers, copolymers having polyamide blocks and polyether blocks, copolymers having polyester blocks and polyether blocks, copolymers having polyamide blocks, polyether blocks and polyester blocks, copolymers of ethylene and an alkyl (meth)acrylate, copolymers of ethylene and vinyl alcohol (EVOH), ABS, SAN, ASA, polyacetal, polyketones, and mixtures thereof.
18 . The composition as claimed in claim 16 , comprising from 1% to 99% by weight of said copolyesteramide and from 1% to 99% by weight of said polymer matrix, based on the total weight of the composition, which represents 100%.
19 . The composition as claimed in claim 16 , wherein it further comprises at least one flame-retardant additive added by physical mixing, and selected from: hydrated fillers of the aluminum trihydroxide and/or magnesium dihydroxide type, melamine derivatives, phosphorus-containing flame retardants, metal salts of phosphinic acid, metal salts of diphosphinic acid, and mixtures thereof.
20 . The composition as claimed in claim 13 , wherein it further comprises at least one flame-retardant additive added by physical mixing, and selected from: hydrated fillers of the aluminum trihydroxide and/or magnesium dihydroxide type, melamine derivatives, phosphorus-containing flame retardants, metal salts of phosphinic acid, metal salts of diphosphinic acid, and mixtures thereof.
21 . An article comprising a copolyesteramide as claimed in claim 1 , the article being selected from the group consisting of electrical articles, articles for electrical engineering, tubes, cables, electrical safety articles, molded articles, and articles obtained by 3D printing.
22 . An article obtained by injection molding, extrusion, coextrusion, hot compression molding, multi-shot injection molding or by 3D printing from at least one copolyesteramide as claimed claim 1 .
23 . An article comprising a copolyesteramide as claimed in claim 8 , the article being selected from the group consisting of electrical articles, articles for electrical engineering, tubes, cables, electrical safety articles, molded articles, and articles obtained by 3D printing.
24 . An article obtained by injection molding, extrusion, coextrusion, hot compression molding, multi-shot injection molding or by 3D printing from at least one copolyesteramide as claimed claim 8 .