Compositions and methods for polymer composites

US7928155B2 · kind B2 · utility

Assignee

• Sabic Innovative Plastics B.V. · NL

Inventors

• Feng Cao · Loudonville, US
• Kwok Pong Chan · Troy, US
• Erik Hagberg · Decatur, US
• Farid Fouad Khouri · Clifton Park, US
• Tara J. Mullen · Greenwood, US
• Roy Ray Odle · Greenwood, US
• James Mitchell White · Niskayuna, US
• Norimitsu Yamaguchi · Newburgh, US

Key dates

• Filing date: Jun 22, 2007
• Grant date: Apr 19, 2011
• Expiry date: Jun 10, 2028

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F2/44
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

In one embodiment, the present invention provides a method of making a polymer-organoclay composite composition comprising (a) contacting under condensation polymerization conditions a first monomer, a second monomer, a solvent, and an organoclay composition, said organoclay composition comprising alternating inorganic silicate layers and organic layers, to provide a first polymerization reaction mixture, wherein one of said first monomer and second monomers is a diamine and the other is an dianhydride; (b) carrying out a stoichiometry verification step on the first polymerization reaction mixture; (c) optionally adding additional reactant (monomer 1, monomer 2, or chainstopper) to the first polymerization reaction mixture to provide a second polymerization reaction mixture; and (d) removing solvent from the first polymerization reaction mixture or the second polymerization reaction mixture to provide a first polymer-organoclay composite composition comprising a polymer component and an organoclay component wherein the organoclay component is at least 10% exfoliated.