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US 9,006,306 B2Granted
Flame retardant polymer compositions
AssigneeSabic Global Technologies B.V.
InventorsDomenico La Camera, Hendrik Kormelink, Jelena Bo{hacek over (z)}ović-Vukić, Yohana Pérez
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Abstract
In one aspect, the invention relates to crosslinkable, flame retardant polymer compositions are provided comprising a polyamide or polyester; a flame retardant system; a crosslinking agent; and a flame retardant system coagent. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.
Claims34
A flame retardant composition, comprising:
- (a) a polyamide or polyester;
- (b) a crosslinking agent,
- (c) a flame retardant system comprising a metal phosphinate salt, a metal diphosphinate salt, or combination thereof;
- and
- (d) a flame retardant system coagent,
- wherein the flame retardant system and the flame retardant system coagent being different from one another;
- wherein the crosslinking agent comprises two or more groups capable of forming free radicals under beta or gamma radiation;
- and further wherein the flame retardant system coagent is present in an amount of about 1 to about 50 wt % of the total weight of the composition and comprises a mineral flame retardant, a phosphorous flame retardant, boehmite, or a combination thereof.
5 more elements
A flame retardant composition, comprising:
- (a) a polyamide or polyester;
- (b) about 1 to about 20 wt % of a polyallylic compound or a polyol poly(meth)acrylate crosslinking agent;
- (c) about 5 to about 60 wt % of glass fiber;
- (d) about 5 to about 25 wt % of a flame retardant system comprising
- i. a metal phosphinate salt, a metal diphosphinate salt, or a combination thereof;
- and
- ii. optionally at least one nitrogen compound selected from the group consisting of condensation products of melamine and/or reaction products of condensation products of melamine with phosphoric acid, and/or mixtures thereof, melam, melem, melon, melamine cyanurate, melamine phosphate compounds, dimelamine phosphate, melamine pyrophosphate, benzoguanamine compounds, terepthalic ester compounds of tris(hydroxyethyl)isocyanurate, allantoin compounds, glycoluril compounds, ammeline, ammelide, and combinations thereof;
- and
- (e) about 1 to 15 wt % of a flame retardant system coagent;
- wherein all the amounts are based upon the total weight of the composition.
7 more elements
A method of forming a crosslinkable, flame retardant composition comprising:
- (i) blending a polyamide, a crosslinking agent, wherein the crosslinking agent comprises two or more groups capable of forming free radicals under beta or gamma radiation;
- (j) a flame retardant system coagent, and
- (k) a flame retardant system comprising
- i. a metal phosphinate salt, a metal diphosphinate salt, or combination thereof;
- and
- ii. optionally at least one nitrogen compound selected from the group consisting of condensation products of melamine and/or reaction products of condensation products of melamine with phosphoric acid, and/or mixtures thereof, melam, melem, melon, melamine, melamine cyanurate, melamine phosphate compounds, dimelamine phosphate, melamine pyrophosphate, melamine polyphosphate compounds, benzoguanamine compounds, terepthalic ester compounds of tris(hydroxyethyl)isocyanurate, allantoin compounds, glycoluril compounds, ammeline, ammelide, and combinations thereof, to form an intimate blend.
3 more elements
Dependencies are inferred from the claim text.