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US 4,059,650 AGranted
Anti-drip additive system for fire retardant polypropylene
AssigneeThe Standard Oil Company
InventorsFrancis J. Slama, Ivor R. Fielding
Life of this patent
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Abstract
Non-dripping, preferably fire retardant polypropylene compositions comprising modified polypropylene component and a cross-linker. Conventional fire retardants can also be present.
Claims9
A composition comprising;
- a. a resinous polymer of propylene comprising an alpha, beta-ethylenically unsaturated carboxylic acid modified resinous polymer of propylene;
- and
- b. polyfunctional cross-linker containing vicinal polyepoxides wherein said polyfunctional cross-linker is present in a concentration of 0.5 to 15 parts by weight cross-linker per 100 parts by weight resinous polymer of propylene.
Dependencies are inferred from the claim text.