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US 2003/0229160 A1Published application
Non-wood fiber plastic composites
AssigneeLonza Ltd.
InventorsJoseph B. Williams, Kenneth S. Geick, Ahmed M. Tafesh, Xiao Jiang
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AssigneeLonza Ltd.
InventorsJoseph B. Williams, Kenneth S. Geick, Ahmed M. Tafesh, Xiao Jiang
Estimating the term…
This invention is directed to an extrudable compound, an extrusion method using a polymer, a cellulosic fiber, and at least one lubricant selected from the group consisting of ethoxylated esters of hydantoins, ethoxylated esters of sorbitol and sorbitan, and ethylene bisamides made from fatty acids containing 6-10 carbons and composites manufactured through such processes which simulate conventional wood products. Another embodiment of the invention is directed to a composition containing polymer, a cellulosic fiber from an agricultural waste product and a lubricant containing a mixture of an alkylene bisamide derived from a C10-C18 is fatty acid and an alkaline earth salt of a fatty acid.
A polymer-cellulosic fiber composition comprising from about 30 to about 70 wt. % polymer admixed with about 70 to about 30 wt. % cellulosic fiber and from about 1 to about 7 wt. % lubricant selected from the group consisting of ethoxylated esters of hydantoins, ethoxylated esters of sorbitol and sorbitan, and ethylene bisamides made from fatty acids containing 6-10 carbons.
A process for the preparation of a polymer-cellulosic fiber plastic composite, comprising:
An extrudable composition comprising from about 30 to about 70 wt. % polymer, from about 70 to about 30 wt. % cellulosic fiber and from about 1 to about 7 wt. % lubricant selected from the group consisting of ethoxylated esters of hydantoins, ethoxylated esters of sorbitan, ethylene bisamides made from fatty acids containing 6-10 carbons and combinations thereof.
A composition prepared by the process comprising:
A polymer-cellulosic fiber composition comprising from about 30 to about 70% wt. % polymer admixed with about 70 to about 30 wt. % cellulosic fiber derived from an agricultural waste product and from about 1 to about 7 wt. % lubricant selected from the group consisting of an amide, an alkylene bisamide or a combination thereof.
Dependencies are inferred from the claim text.