Halogenated aromatic polymer/metal phosphinate polymer flame retardant composition

Claim 2

A composition having flame retardant properties comprising A. a synthetic aromatic polymer containing chlorine, bromine, or mixtures thereof chemically bound to an aromatic ring and B. an amount sufficient to reduce the flammability of A up to about 20% by weight of A plus B of a linear polymeric metal phosphinate of the recurring structural formula selected from the group consisting of [M(OPRR'O).sub.m ].sub.n (I) [m'(b).sub.z (OPRR'O).sub.m ].sub.n (II) [m"(h.sub.2 o).sub.a (OH).sub.c (OPRR'O).sub.q . pH.sub.2 O].sub.n (III) wherein R and R' may be the same or different and represent alkyl or aryl radicals, M is a metal selected from the group consisting of Co, Mn, Cr, Ni, Zn, Zr, Ti, and M' is a member selected from the group consisting of Ti and Zr; B is a member selected from the group consisting of oxo, alkoxy, aryloxy and z equals 1 when B equals oxo, z equals 2 when B equals alkoxy and aryloxy and z equals 0 when m equals 3; M" is Cr(III); a+ p equals 1, q may vary from 1 to 3, c may vary from 0 to 3. m may vary from 1 to 3, and n is at least 10.

Claim 3

The composition according to claim 1 wherein the synthetic halogen containing aromatic polymer is selected from the group consisting of polyesters, polycarbonates, polyurethanes and polyamides.

Claim 4

The composition of claim 1 wherein said polymeric metal is present in an amount which may vary from about 5 to 20% by weight of A plus B.

Claim 5

A composition having flame retardant properties comprising A. a halogenated aromatic polyester of the recurring structural formula ##STR18## where X is chlorine or bromine, R and R' may be the same or different and represent lower alkyl groups, hydrogen, or together constitute a cyclic hydrocarbon group, n = at least 25, with said aromatic polyester being a product of a tetrabromobisphenol and a mixture of 45 to 75 percent by weight of isophthalic acid or the ester forming derivatives thereof and correspondingly about 55 to 25 percent by weight of terephthalic acid or the ester forming derivatives thereof when X = Br, and with said halogenated polymer being a product of a tetrachlorobisphenol, and a mixture of 90 to 40 percent by weight isophthalic acid or the ester forming derivatives thereof and correspondingly about 10 to 60 percent by weight terephthalic acid or ester forming derivatives thereof when X = Cl, and B. an amount sufficient to reduce the flammability of A up to about 20% by weight of A plus B of a linear polymeric metal phosphinate of the recurring structural formula selected from the group consisting of [M(OPRR'O).sub.m ].sub.n (I) [m'(b).sub.z (OPRR'O).sub.m ].sub.n (II) [m"(h.sub.2 o).sub.a (OH).sub.c (OPRR'O).sub.q . pH.sub.2 O].sub.n (III) wherein R and R' may be the same or different and represent alkyl or aryl radicals, M is a metal selected from the group consisting of Co, Mn, Cr, Ni, Zn, Zr, Ti, and M' is a member selected from the group consisting of Ti and Zr; B is a member selected from the group consisting of oxo, alkoxy, aryloxy and z equals 1 when B equals oxo, z equals 2 when 8 equals alkoxy and aryloxy and z equals 0 when m equals 3; M" is Cr(III); and a+p equals 1; m may vary from 1 to 3; q may vary from 1 to 3; c may vary from 0 to 3 and n is at least 10.

Claim 6

A composition having flame retardant properties comprising A. a halogenated aromatic polyester of the recurring structural formula ##STR18## where X is chlorine or bromine, R and R' may be the same or different and represent lower alkyl groups, hydrogen, or together constitute a cyclic hydrocarbon group, n = at least 25, with said aromatic polyester being a product of a tetrabromobisphenol and a mixture of 45 to 75 percent by weight of isophthalic acid or the ester forming derivatives thereof and correspondingly about 55 to 25 percent by weight of terephthalic acid or the ester forming derivatives thereof when X = Br, and with said halogenated polymer being a product of a tetrachlorobisphenol, and a mixture of 90 to 40 percent by weight isophthalic acid or the ester forming derivatives thereof and correspondingly about 10 to 60 percent by weight terephthalic acid or ester forming derivatives thereof when X = Cl, and B. an amount sufficient to reduce the flammability of A up to about 20% by weight of A plus B of a linear polymeric metal phosphinate of the recurring structural formula selected from the group consisting of [M(OPRR'O).sub.m ].sub.n (I) [m'(b).sub.z (OPRR'O).sub.m ].sub.n (II) [m"(h.sub.2 o).sub.a (OH).sub.c (OPRR'O).sub.q . pH.sub.2 O].sub.n (III) wherein R and R' may be the same or different and represent alkyl or aryl radicals, M is a metal selected from the group consisting of Co, Mn, Cr, Ni, Zn, Zr, Ti, and M' is a member selected from the group consisting of Ti and Zr; B is a member selected from the group consisting of oxo, alkoxy, aryloxy and z equals 1 when B equals oxo, z equals 2 when 8 equals alkoxy and aryloxy and z equals 0 when m equals 3; M" is Cr(III); and a+p equals 1; m may vary from 1 to 3; q may vary from 1 to 3; c may vary from 0 to 3 and n is at least 10.

Claim 7

The composition according to claim 4 wherein said halogenated aromatic polyester of the recurring structural formula is a product of a tetrabromobisphenol and a mixture of about 45 to 75% by weight isophthalic acid or the ester forming derivatives thereof, and correspondingly about 55 to 45% by weight terephthalic acid or the ester forming derivatives thereof.

Claim 8

The composition according to claim 4 wherein said halogenated aromatic polyester of the recurring structural formula is a product of tetrabromobisphenol A and the mixture of about 60% by weight isophthaloyl chloride and correspondingly about 40% by weight terephthaloyl chloride.

Claim 9

The composition according to claim 4 wherein said polymeric metal phosphinate is present in an amount which may vary from about 5 to 20% by weight of A plus B.

Claim 10

The composition according to claim 4 wherein X equals chlorine and said halogenated aromatic polyester of the recurring structural formula is a product of a tetrachlorobisphenol and a mixture of 80 to 60% by weight isophthalic acid or the ester forming derivatives thereof and correspondingly about 20 to 40% by weight of terephthalic acid or the ester forming derivatives thereof.

Claim 11

The composition according to claim 4 wherein said halogenated aromatic polyester of the recurring structural formula is a product of tetrachlorobisphenol A and a mixture of about 70% by weight of isophthaloyl chloride and correspondingly about 30% by weight terephthaloyl chloride.

Claim 12

The composition according to claim 4 wherein the metal of the polymeric metal phosphinate of the recurring structural formulas is titanium.

Claim 13

The composition according to claim 4 wherein the metal of said polymeric metal phosphinate of the recurring structural formula is zirconium.

Claim 14

A process for providing a composition having flame retardant properties comprising: blending A. a halogenated aromatic polyester of the recurring structural formula ##STR19## where X is chlorine or bromine, R and R' may be the same or different and represent lower alkyl groups, hydrogen, or together constitute a cyclic hydrocarbon group, n = at least 25, with said aromatic polyester being a product of a tetrabromobisphenol and a mixture of 45 to 75 percent by weight of isophthalic acid or the ester forming derivatives thereof and correspondingly about 55 to 25 percent by weight of terephthalic acid or the ester forming derivatives thereof when X = Br, and with said halogenated polymer being a product of a tetrachlorobisphenol, and a mixture of 90 to 40 percent by weight isophthalic acid or the ester forming derivatives thereof and correspondingly about 10 to 60 percent by weight terephthalic acid or ester forming derivatives thereof when X = Cl, with; B. an amount sufficient to reduce the flammability of A up to about 20% by weight of A plus B of a polymeric metal phosphinate of the recurring structural formula selected from the group consisting of [M(OPRR'O).sub.m ].sub.n (I) [m'(b).sub.z (OPRR'O).sub.m ].sub.n (II) [m"(h.sub.2 o).sub.a (OH).sub.c (OPRR'O).sub.q . pH.sub.2 O].sub.n (III) wherein R and R' may be the same or different and represent alkyl or aryl radicals, M is a metal selected from the group consisting of Co, Mn, Cr, Ni, Zn, Zr, Ti, M' is a member selected from the group consisting of Ti and Zr; B is a member selected from the group consisting of oxo, alkoxy, and aryloxy, z equals 1 when B equals oxo and z equals 2 when B equals alkoxy and aryloxy; z equals 0 when m equals 3; M" is Cr(III); a+p equals 1; q may vary from 1 to 3; m may vary from 1 to 3, c may vary from 0 to 3 and n is at least 10.

Claim 15

A process for providing a composition having flame retardant properties comprising: blending A. a halogenated aromatic polyester of the recurring structural formula ##STR19## where X is chlorine or bromine, R and R' may be the same or different and represent lower alkyl groups, hydrogen, or together constitute a cyclic hydrocarbon group, n = at least 25, with said aromatic polyester being a product of a tetrabromobisphenol and a mixture of 45 to 75 percent by weight of isophthalic acid or the ester forming derivatives thereof and correspondingly about 55 to 25 percent by weight of terephthalic acid or the ester forming derivatives thereof when X = Br, and with said halogenated polymer being a product of a tetrachlorobisphenol, and a mixture of 90 to 40 percent by weight isophthalic acid or the ester forming derivatives thereof and correspondingly about 10 to 60 percent by weight terephthalic acid or ester forming derivatives thereof when X = Cl, with; B. an amount sufficient to reduce the flammability of A up to about 20% by weight of A plus B of a polymeric metal phosphinate of the recurring structural formula selected from the group consisting of [M(OPRR'O).sub.m ].sub.n (I) [m'(b).sub.z (OPRR'O).sub.m ].sub.n (II) [m"(h.sub.2 o).sub.a (OH).sub.c (OPRR'O).sub.q . pH.sub.2 O].sub.n (III) wherein R and R' may be the same or different and represent alkyl or aryl radicals, M is a metal selected from the group consisting of Co, Mn, Cr, Ni, Zn, Zr, Ti, M' is a member selected from the group consisting of Ti and Zr; B is a member selected from the group consisting of oxo, alkoxy, and aryloxy, z equals 1 when B equals oxo and z equals 2 when B equals alkoxy and aryloxy; z equals 0 when m equals 3; M" is Cr(III); a+p equals 1; q may vary from 1 to 3; m may vary from 1 to 3, c may vary from 0 to 3 and n is at least 10.

Claim 16

The process according to claim 12 wherein the metal of the polymeric metal phosphinate is selected from the group consisting of titanium and zirconium.

Claim 17

The process according to claim 12 wherein R is phenyl, and R' is methyl.

Claim 18

The process according to claim 12 wherein X equals bromine, and said halogenated aromatic polyester of the recurring structural formula is a product of a tetrabromobisphenol and a mixture of about 45 to 75% by weight isophthalic acid or the ester derivatives thereof and correspondingly about 55 to 25% by weight terephthalic acid of the ester forming derivatives thereof.

Claim 19

The process according to claim 12 wherein said halogenated aromatic polyester of the recurring structural formula is a product of tetrabromobisphenol A and a mixture of about 60% by weight isophthaloyl chloride and correspondingly about 40% by weight terephthaloyl chloride.

Claim 20

The process according to claim 12 wherein X equals chlorine and said halogenated fibrous material of the recurring structural formula is a product of a tetrachlorobisphenol and a mixture of 80 to 60% by weight isophthalic acid or the ester forming derivatives thereof and correspondingly about 20 to 40% by weight of terephthalic acid of the ester forming derivatives thereof.

Claim 21

The process according to claim 12 wherein said halogenated aromatic polyester of the recurring structural formula is a product of tetrachlorobisphenol A and a mixture of about 70% by weight isophthaloyl chloride correspondingly about 30% by weight terephthaloyl chloride.

Claim 22

The process according to claim 12 wherein the amount of polymeric metal phosphinate which is blended with the halogenated aromatic polyester may vary from about 5 to about 20% by weight of the blend.

Claim 23

A composition having flame retardant properties comprising A. a halogenated aromatic polyester of the recurring structural formula ##STR20## where X is bromine, R and R' may be the same or different and represent lower alkyl groups, hydrogen, or together constitute a cyclic hydrocarbon group, n = at least 25, with said aromatic polyester being a product of tetrabromobisphenol A and a mixture of 45 to 75% by weight isophthalic acid or the ester forming derivatives thereof and correspondingly about 55 to 25 percent by weight of terephthalic acid or the ester forming derivatives thereof; and B. an amount sufficient to reduce the flammability of A up to about 20% by weight of A plus B of a linear polymeric metal phosphinate of the recurring structural formula selected from the group consisting of [M(OPRR'O).sub.m ].sub.n (I) [m'(b).sub.z (OPRR'O).sub.m ].sub.n (II) wherein R and R' may be the same or different and represent alkyl or aryl radicals, M is a metal selected from the group consisting of Co, Cr, Ni, Zn, Zr, Ti, and M' is a member selected from the group consisting of Ti and Zr; B is a member selected from the group consisting of oxo, alkoxy, aryloxy and z equals 1 when B equals oxo, z equals 2 when B equals alkoxy and aryloxy and z equals 0 when m equals 3; m may vary from 1 to 3; and n is at least 10.

Claim 24

A composition having flame retardant properties comprising A. a halogenated aromatic polyester of the recurring structural formula ##STR20## where X is bromine, R and R' may be the same or different and represent lower alkyl groups, hydrogen, or together constitute a cyclic hydrocarbon group, n = at least 25, with said aromatic polyester being a product of tetrabromobisphenol A and a mixture of 45 to 75% by weight isophthalic acid or the ester forming derivatives thereof and correspondingly about 55 to 25 percent by weight of terephthalic acid or the ester forming derivatives thereof; and B. an amount sufficient to reduce the flammability of A up to about 20% by weight of A plus B of a linear polymeric metal phosphinate of the recurring structural formula selected from the group consisting of [M(OPRR'O).sub.m ].sub.n (I) [m'(b).sub.z (OPRR'O).sub.m ].sub.n (II) wherein R and R' may be the same or different and represent alkyl or aryl radicals, M is a metal selected from the group consisting of Co, Cr, Ni, Zn, Zr, Ti, and M' is a member selected from the group consisting of Ti and Zr; B is a member selected from the group consisting of oxo, alkoxy, aryloxy and z equals 1 when B equals oxo, z equals 2 when B equals alkoxy and aryloxy and z equals 0 when m equals 3; m may vary from 1 to 3; and n is at least 10.

Claim 25

The composition according to claim 20 wherein said halogenated aromatic polyester of the recurring structural formula is a product of tetrabromobisphenol A and a mixture of about 60% by weight isophthaloyl chloride and correspondingly about 40% by weight terephthaloyl chloride.

Claim 26

The composition according to claim 20 wherein said polymeric metal phosphinate is present in an amount which may vary from about 5 to 20% by weight of A plus B.

Claim 27

The composition according to claim 20 wherein the metal of the polymeric metal phosphinate of the recurring structural formula is titanium.

Claim 28

The composition according to claim 20 wherein the metal of said polymeric metal phosphinate of the recurring structural formula is zirconium.

Claim 29

A process for providing a composition having flame retardant properties comprising: blending A. a halogenated aromatic polyester of the recurring structural formula ##STR21## where X is bromine, R and R' may be the same or different and represent lower alkyl groups, hydrogen, or together constitute a cyclic hydrocarbon group, n = at least 25, with said aromatic polyester being a product of tetrabromobisphenol A and a mixture of 45 to 75 percent by weight of isophthalic acid or the ester forming derivatives thereof and correspondingly about 55 to 25 percent by weight of terephthalic acid or the ester forming derivatives thereof, with; B. an amount sufficient to reduce the flammability of A up to about 20% by weight of A plus B of a polymeric metal phosphinate of the recurring structural formula selected from the group consisting of [M(OPRR'O).sub.m ].sub.n (I) [m'(b).sub.z (OPRR'O).sub.m ].sub.n (II) wherein R and R' may be the same or different and represent alkyl or aryl radicals, M is a metal selected from the group consisting of Co, Mn, Cr, Ni, Zn, Zr, Ti, M' is a member selected from the group consisting of Ti and Zr; B is a member selected from the group consisting of oxo, alkoxy, and aryloxy, z equals 1 when B equals oxo and z equals 2 when B equals alkoxy and aryloxy; z equals 0 when m equals 3; m may vary from 1 to 3; and n is at least 10.

Claim 30

A process for providing a composition having flame retardant properties comprising: blending A. a halogenated aromatic polyester of the recurring structural formula ##STR21## where X is bromine, R and R' may be the same or different and represent lower alkyl groups, hydrogen, or together constitute a cyclic hydrocarbon group, n = at least 25, with said aromatic polyester being a product of tetrabromobisphenol A and a mixture of 45 to 75 percent by weight of isophthalic acid or the ester forming derivatives thereof and correspondingly about 55 to 25 percent by weight of terephthalic acid or the ester forming derivatives thereof, with; B. an amount sufficient to reduce the flammability of A up to about 20% by weight of A plus B of a polymeric metal phosphinate of the recurring structural formula selected from the group consisting of [M(OPRR'O).sub.m ].sub.n (I) [m'(b).sub.z (OPRR'O).sub.m ].sub.n (II) wherein R and R' may be the same or different and represent alkyl or aryl radicals, M is a metal selected from the group consisting of Co, Mn, Cr, Ni, Zn, Zr, Ti, M' is a member selected from the group consisting of Ti and Zr; B is a member selected from the group consisting of oxo, alkoxy, and aryloxy, z equals 1 when B equals oxo and z equals 2 when B equals alkoxy and aryloxy; z equals 0 when m equals 3; m may vary from 1 to 3; and n is at least 10.

Claim 31

The process according to claim 25 wherein the metal of the polymeric metal phosphinate is a member selected from the group consisting of titanium and zirconium.

Claim 32

The process according to claim 25 wherein R is phenyl, and R' is methyl.

Claim 33

The process according to claim 25 wherein said halogenated aromatic polyester of the recurring structural formula is a product of tetrabromobisphenol A and a mixture of about 60% by weight isophthaloyl chloride and correspondingly about 40% by weight terephthaloyl chloride.

Claim 34

The process according to claim 25 wherein the amount of polymeric metal phosphinate which is blended with the halogenated aromatic polyester may vary from about 5 to about 20% by weight of the blend of A plus B.