Flame retardant polyolefin pallets and flame retardant master batch for their production
First Claim
1. A flame retardant molded polyolefin pallet comprising one or more subassemblies, at least one subassembly comprising a polyolefin containing a flame retardant package comprising as flame retardant componentsa) 4-14% halogenated organic flame retardant, b) 4-15% alumina trihydrate, and c) 1-5% antimony trioxide, said percentages based on the weight of polyolefin and the sum of flame retardant components a) to c).
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Accused Products
Abstract
Polyolefin-based pallets capable of passing standard pallet flammability tests are prepared by molding the pallet or one or more subassemblies thereof, of a polyolefin molding resin containing a flame retardant package containing a halogenated organic flame retardant, alumina trihydrate, and antimony trioxide. The flame retardants are advantageously supplied as a master batch at a concentration higher than that desired in the pallet or subassembly, in a polyolefin-compatible polymer.
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Citations
20 Claims
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1. A flame retardant molded polyolefin pallet comprising one or more subassemblies, at least one subassembly comprising a polyolefin containing a flame retardant package comprising as flame retardant components
a) 4-14% halogenated organic flame retardant, b) 4-15% alumina trihydrate, and c) 1-5% antimony trioxide, said percentages based on the weight of polyolefin and the sum of flame retardant components a) to c).
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9. A process for the manufacture of a flame retardant polyolefin pallet or subassembly thereof, comprising
a) supplying a polyolefin molding resin b) supplying a flame retardant package comprising flame retardant components b)i) from 4-14% halogenated organic flame retardant; -
b)ii) from 4-15% alumina trihydrate;
b)iii) from 1-5% antimony trioxide;
c) uniformly blending said polyolefin resin with the components b)i to b)iii of said flame retardant package to form a flame retardant-containing polyolefin molding resin; and
d) molding a polyolefin pallet or subassembly thereof from said flame retardant-containing polyolefin molding resin. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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Specification