Patent · US Active

Method for producing expanded thermoplastic polymers

US11186695B2 · kind B2 · utility

0Cited by

2References

15Claims

0Family size

Assignee

HUNTSMAN INTERNATIONAL LLC · US

Inventors

Alexander Klein · Troisdorf, DE
Jan Vandenbroeck · Zichem, BE
Maria Richard Koen Kemel · Kessel-Lo, BE
Joseph M. Brennan · Aarschot, BE

Key dates

Filing date	Nov 14, 2017
Grant date	Nov 30, 2021
Priority date	—
Expiry date	May 12, 2038

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08J2375/04
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

An improved process for fabricating expanded thermoplastic polymers (eTP) starting from non-expanded TP is disclosed whereby said process has improved thermal control, uses preferably environmentally friendly foaming gasses, avoids anisotropy and sticking of the eTP during the processing and minimises the duration of the charging step.

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