Bicyclo[2.2.1]heptane dicarboxylate salts as polyolefin nucleators
AssigneeMilliken & Company
InventorsXiaodong Edward Zhao, Darin L. Dotson
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Abstract
Compounds and compositions comprising specific metal salts of bicyclo[2.2.1 ]heptane dicarboxylate salts in order to provide highly desirable properties within polyolefin articles are provided. The inventive salts and derivatives thereof are useful as nucleating and/or clarifying agents for such polyolefin, provide excellent crystallization temperatures, stiffness, and calcium stearate compatibility within target polyolefin. Also, such compounds exhibit very low hygroscopicity and therefore excellent shelf stability as powdered or granular formulations. Polyolefin additive compositions and methods of producing polyolefin with such compounds are also contemplated within this invention.
Claims21
A thermoplastic article comprising at least one compound conforming to the structure of Formula (I)
- wherein M1 and M2 are the same or different, such that M1 and M2 may individually constitute monovalent cations, or M1 and M2 may be combined to form a single multivalent cation;
- wherein M1 and M2 are independently selected from the group consisting of at least one metal cation and at least one organic cation, and R1, R2, R3, R4, R5, R6, R7, R8, R9, and R10 are individually selected from the group consisting of hydrogen, C1-C9 alkyl, hydroxy, C1-C9 alkoxy, C1-C9 alkyleneoxy, amine, C1-C9 alkylamine, halogen, phenyl, alkylphenyl, and geminal or vicinal C1-C9 carbocyclic.
A polymer additive composition comprising at least one compound conforming to the structure of Formula (I)
- wherein M1 and M2 are the same or different, such that M1 and M2 may individually constitute monovalent cations, or M1 and M2 may be combined to form a single multivalent cation;
- wherein M1 and M2 are independently selected from the group consisting of at least one metal cation and at least one organic cation, and R1, R2, R3, R4, R5, R6, R7, R8, R9, and R10 are individually selected from the group consisting of hydrogen, C1-C9 alkyl, hydroxy, C1-C9 alkoxy, C1-C9 alkyleneoxy, amine, C1-C9 alkylamine, halogen, phenyl, alkylphenyl, and geminal or vicinal C1-C9 carbocyclic;
- wherein said additive composition is present in a form selected from the group consisting of a powder, a pellet, and a liquid, and wherein said composition also comprises at least one polymer, and, optionally, at least one compound selected from the group consisting of plasticizers, acid scavengers, antioxidants, antimicrobials, flame retardants, light stabilizers, antistatic agents, colorants, pigments, and any combination thereof.
A thermoplastic article comprising at least one saturated bicyclo 2.2.1heptane dicarboxylate salt compound.
Dependencies are inferred from the claim text.