Patent · US Active

Process for making polyester nanocomposites

US8357743B2 · kind B2 · utility

1Cited by

5References

9Claims

0Family size

Assignee

E.I. DU PONT DE NEMOURS AND COMPANY · US

Inventors

Surbhi Mahajan · Newark, US
Nathaniel A. Barney · Wilmington, US

Key dates

Filing date	Jun 24, 2010
Grant date	Jan 22, 2013
Priority date	—
Expiry date	Mar 31, 2031

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08K9/04
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A method for making polyester nanocomposite materials by polymerization in the presence of exfoliated fibrous clay nanoparticles includes dispersing the nanoparticles in a mixture of diol, water, and sodium salt before polymerization, thereby improving the dispersion of the nanoparticles in the final nanocomposite. This results in enhanced mechanical properties, such as modulus, in articles made from the nanocomposite.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.