Patent · US Active

Hollow polystyrene body obtained by injection stretch blow moulding

US8545953B2 · kind B2 · utility

6Cited by

11References

10Claims

0Family size

Assignee

Styrolution GmbH · DE

Inventors

Stefan Burgdörfer · Mutterstadt, DE
Walter Heckmann · Weinheim, DE
Hans-Jürgen Renner · Schifferstadt, DE
Christian Schade · Ludwigshafen, DE
Hans-Dieter Schwaben · Freisbach, DE

Key dates

Filing date	Dec 17, 2007
Grant date	Oct 1, 2013
Priority date	—
Expiry date	Mar 31, 2030

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/1397
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A blow molding having capacity of at least 250 ml, having a shell which is composed of impact-resistant polystyrene and which is produced via injection stretch blow molding where an average aspect ratio of rubber particles derived from longitudinal section and an average aspect ratio of rubber particles derived from cross section measured in transmission electron micrographs is greater than 4 respectively, and a biaxial orientation of the rubber particles, given by the ratio of the aspect ratio derived from cross section to the aspect ratio derived from longitudinal section is smaller than 3.

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