Back to results
US 6,638,996 B1Granted
Pigment for warpage-free polyolefins coloration
AssigneeClariant Finance (BVI) Limited
InventorsBansi Lal Kaul, Bruno Piastra, Till Borchert
Life of this patent
Estimating the term…
Abstract
Use of the pigment of formula (I) in which X stands for Cl or CH3, and of formula (II) wherein R is phenyl or C12H25, for the coloration of polyolefins which do not warp.
Claims3
A method for the coloration of warpage-free polyolefins comprising the step of adding to a polyolefin a pigment of formula (II)
- wherein R is phenyl or C12H25.
Warpage-free polyolefins which have been colored with the pigment of formula (II)
- wherein R is phenyl or C12H25.
High density polyethylene (HDPE) which does not warp and has been colored with the pigment of formula (II)
- R is phenyl or C12H25.
Dependencies are inferred from the claim text.