Flame retardant polymer blends, and method for making
AssigneeGeneral Electric Company
InventorsJos Herman Peter Bastiaens, John Robert Campbell, Luc Carlos Govaerts
Life of this patent
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Abstract
Flame retardant blends comprising at least one polyestercarbonate, at least one addition polymer such as a styrene-acrylonitrile or ABS copolymer, and at least one phosphoryl flame retardant have high temperature stability properties superior to those of similar blends containing polycarbonate in place of polyestercarbonate.
Claims76
A resin composition comprising the following and any reaction products thereof:
- a) at least one polyestercarbonate comprising structural units of the formula I:
- wherein D is a divalent aromatic radical;
- and repeating or recurring structural units of the formula II:
- —O—R1—O—D— (II)
- wherein D has the meaning previously ascribed to it and R1 is at least one divalent moiety selected from those of the formulae III and IV:
- b) at least one addition polymer;
- and
- c) at least one phosphoryl compound having a glass transition point of at least about 0° C. of the formula V:
- wherein Q is oxygen or sulfur;
- and R2, R3, and R4 are each independently an alkyloxy, alkylthio, aryloxy, or arylthio residue, or an aryloxy or arylthio residue containing at least one alkyl or halogen substitution, or mixture thereof;
- or an amine residue.
A resin composition comprising the following and any reaction products thereof:
- a) at least one polyestercarbonate comprising structural units of the formula I:
- wherein D is a divalent aromatic radical;
- and repeating or recurring structural units of the formula II:
- —O—R1—O—D— (II)
- wherein D has the meaning previously ascribed to it and R1 is at least one divalent moiety selected from those of the formulae III and IV:
- b) at least one addition polymer;
- and
- c) at least one phosphoramide having a glass transition point of at least about 0° C. of the formula XIV:
- wherein
- each Q is independently oxygen or sulfur;
- and
- each of A11-16 is independently an alkyloxy, alkylthio, aryloxy, or arylthio residue, or an aryloxy or arylthio residue containing at least one alkyl substitution;
- or an amine residue.
A resin composition comprising the following and any reaction products thereof:
- a) at least one polyestercarbonate comprising structural units of the formula I:
- wherein D is a divalent aromatic radical;
- and repeating or recurring structural units of the formula II:
- —O—R1—O—D— (II)
- wherein D has the meaning previously ascribed to it and R1 is at least one divalent moiety selected from those of the formulae III and IV:
- b) at least one addition polymer;
- and
- c) at least one cyclic phosphoramide having a glass transition point of at least about 0° C. of the formula XVIII:
- wherein Q is oxygen or sulfur;
- each R18-21 is independently a hydrogen or an alkyl radical;
- X3 is a alkylidene radical;
- n is 0 or 1;
- and A24 is a group derived from a primary or secondary amine that can be aliphatic, alicyclic, aromatic, or alkaryl, or A24 is a group derived from a heterocyclic amine, or A24 is a hydrazine compound.
A resin composition comprising the following and any reaction products thereof:
- a) at least one polyestercarbonate comprising structural units of the formula I:
- wherein D is a divalent aromatic radical;
- and repeating or recurring structural units of the formula II:
- —O—R1—O—D— (II)
- wherein D has the meaning previously ascribed to it and R1 is at least one divalent moiety selected from those of the formulae III and IV:
- b) at least one addition polymer;
- and
- c) at least one cyclic phosphoramide having a glass transition point of at least about 0° C. of the formula XIX:
- wherein each Q is independently oxygen or sulfur;
- each of R22-29 is independently a hydrogen or an alkyl radical;
- and A25 is
- wherein G1 is sulfur, an alkyl, aryl, or alkaryl radical, X4 is an alkylidene radical, each of m and n is independently 0 or 1, and each Z3 is independently an alkyl radical or an aryl radical, or
- wherein A25 is
- wherein G2is alkyl, aryl, or alkaryl, and Y2 is alkyl.
A resin composition consisting essentially of:
- a) at least one polyestercarbonate comprising structural units of the formula I:
- wherein D is a divalent aromatic radical;
- and repeating or recurring structural units of the formula II:
- —O—R1—O—D— (II)
- wherein D has the meaning previously ascribed to it and R1 is at least one divalent moiety selected from those of the formulae III and IV:
- b) at least one addition polymer;
- and
- c) at least one phosphoryl compound having a glass transition point of at least about 0° C. of the formula V:
- wherein R2, R3, and R4 are each independently an alkoxy residue, aryloxy residue, or amine residue, or an aryloxy residue containing at least one alkyl substitution;
- and Q is oxygen or sulfur.
A method to increase the heat distortion temperature of a flame resistant composition containing an amount of a phosphoryl compound effective to render the composition a flame rating of at least V-2 in the Underwriter's Laboratory UL-94 protocol when measured on a test specimen of about 0.125 inch by about 0.5 inch by about 5 inch dimensions, wherein the method comprises combining:
- a) at least one polyestercarbonate comprising structural units of the formula I:
- wherein D is a divalent aromatic radical;
- and repeating or recurring structural units of the formula II:
- —O—R1—O—D— (II)
- wherein D has the meaning previously ascribed to it and R1 is at least one divalent moiety selected from those of the formulae III and IV:
- b) at least one addition polymer;
- and
- c) at least one phosphoryl compound having a glass transition point of at least about 0° C. of the formula V:
- wherein Q is oxygen or sulfur;
- and R2, R3, and R4 are each independently an alkyloxy, alkylthio, aryloxy, or arylthio residue, or an aryloxy or arylthio residue containing at least one alkyl or halogen substitution, or mixture thereof;
- or an amine residue.
A resin composition comprising the following and any reaction products thereof:
- a) at least one polyestercarbonate comprising structural units of the formula I:
- wherein D is a divalent aromatic radical;
- and repeating or recurring structural units of the formula II:
- —O—R1—O—D— (II)
- wherein D has the meaning previously ascribed to it and R1 is at least one divalent moiety selected from those of the formulae III and IV:
- b) at least one addition polymer;
- and
- c) a phosphoramide having a glass transition point of at least about 20° C. of the formula XII:
- wherein each Q1 is oxygen;
- and each A moiety is a 2,6-dimethylphenoxy moiety.
A method to increase the heat distortion temperature of a flame resistant composition containing an amount of a phosphoryl compound effective to render the composition a flame rating of at least V-2 in the Underwriter's Laboratory UL-94 protocol when measured on a test specimen of about 0.125 inch by about 0.5 inch by about 5 inch dimensions, wherein the method comprises combining:
- a) at least one polyestercarbonate comprising structural units of the formula I:
- wherein D is a divalent aromatic radical;
- and repeating or recurring structural units of the formula II:
- —O—R1—O—D— (II)
- wherein D has the meaning previously ascribed to it and R1 is at least one divalent moiety selected from those of the formulae III and IV:
- b) at least one addition polymer;
- and
- c) a phosphoramide having a glass transition point of at least about 20° C. of the formula XII:
- wherein each Q1 is oxygen;
- and each A moiety is a 2,6-dimethylphenoxy moiety.
Dependencies are inferred from the claim text.