Patent · US Active

Process for the manufacture of lonomeric polybutylene terephthalate from polyethylene terephthalate, and compositions and articles thereof

US7928150B2 · kind B2 · utility

27Cited by

29References

43Claims

0Family size

Assignee

Sabic Innovative Plastics B.V. · NL

Inventors

Ganesh Kannan · Saginaw, US
Dhaval Shah · Evansville, US
Rama Konduri · Evansville, US

Key dates

Filing date	May 6, 2008
Grant date	Apr 19, 2011
Priority date	—
Expiry date	Apr 13, 2029

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L67/02
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

An ionomeric, modified poly(1,4-butylene terephthalate) copolymer comprising: polyester units comprising non-ionomeric ester units and ionomeric ester units substituted with an inorganic ionic group; and polyester units having at least one residue that is derived from a polyethylene terephthalate component selected from the group consisting of polyethylene terephthalate and polyethylene terephthalate copolymers is described.

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