US2005228118A1PendingUtilityA1
Method of producing pelletized polyolefin
Est. expiryDec 11, 2018(expired)· nominal 20-yr term from priority
B29B 9/16B29K 2023/12B29B 7/88B29C 48/00B29C 41/04B29B 9/12B29B 9/14B29B 2009/125B29B 7/603B29K 2023/06B29B 7/90B29B 7/38B29B 9/065
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Claims
Abstract
Rotational moulded products are prepared by producing a mixture of a polyolefin and optionally at least one additive, extruding this mixture in melt form through orifices in a die, pelletizing the mixture extruded through the orifices to form micropellets having a particle size distribution D(v, 0.5) of 0.1 to 1 mm, and a value of the ratio of D(v, 0.9)-D(v, 0.1) to D(v, 0.5) of no more than 1, drying the micropellets to a residual water content of no more than 1% weight, and if desired packaging the micropellets.
Claims
exact text as granted — not AI-modified1 .- 20 . (canceled)
21 . A rotationally moulded polymer article having a pinhole density on its surface of less than 1/cm 2 .
22 . An article as claimed in claim 21 being free of pinholes.Join the waitlist — get patent alerts
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