Abstract: The present invention disclose an improved carboxylate-alumoxanes nano sheets nucleating agent of formula (I), for advanced nucleation of thermoplastic semi-crystalline polymer, at low concentration; [Formula should be inserted here] where 2x+y+z=3 wherein; G represents a Phenyl ring or Naphthyl ring or fused aromatic rings R is independently selected from the group consisting of H,(C1-C6)alkyl, (C1-C6)alkoxy, aryloxy, hydroxy, halogen, aryl, arylalkyl and carbocyclic ring with adjacent carbon atoms of the parent phenyl ring; E is either oxygen or a bond; F is either CH2 or a bond; n=2?50.

Abstract: The present invention disclose an improved carboxylate-alumoxanes nano sheets nucleating agent of formula (I), for advanced nucleation of thermoplastic semi-crystalline polymer, at low concentration; [Formula should be inserted here] where 2x+y+z=3 wherein; G represents a Phenyl ring or Naphthyl ring or fused aromatic rings R is independently selected from the group consisting of H,(C1-C6)alkyl, (C1-C6)alkoxy, aryloxy, hydroxy, halogen, aryl, arylalkyl and carbocyclic ring with adjacent carbon atoms of the parent phenyl ring; E is either oxygen or a bond; F is either CH2 or a bond; n=2-50

Abstract: The present invention provides nucleated polyolefins using shellac based nucleating agents wherein the nucleated polyolefins obtained have improved crystallization temperature (Tc) and smaller spherulitic size and hence improved transparency characteristics.

Abstract: The present invention provides a process for the preparation of gels of alkali and alkaline earth metal salts of organic carboxylic salts useful as nucleating agents for polyolefins and a process for incorporating nucleating agents in polyolefins in which a nucleating agent in solvent gel form is mixed with a polyolefin polymer by mechanical mixing and optionally compounded with other ingredients after removal of solvent by blowing air followed by extrusion resulting in a composition having higher crystallization temperature and smaller size of spherulites than the composition in which the nucleating agent is incorporated in polypropylene composition as a solid powder or by spraying solution of the nucleating agent in low boiling solvent.

Abstract: The present invention relates to a plastic composition having improved crystallization temperature (Tc) and reduced spherulitic size and hence improved transparency characteristics which comprises a polymer selected from aliphatic polyolefins (PO) and copolymers containing at least one aliphatic olefin and one or more ethylenically unsaturated aliphatic comonomers and an imide alone or in combination with aliphatic fatty acids or its salts in an amount sufficient to improve crystallization temperature, reduce spherulitic size and hence improve transparency.

Abstract: The present invention provides nucleated polyolefins using shellac based nucleating agents wherein the nucleated polyolefins obtained have improved crystallization temperature (Tc) and smaller spherulitic size and hence improved transparency characteristics.