Patent · US Expired

Thermoplastic vulcanizate and its method of production

US6774162B1 · kind B1 · utility

9Cited by

5References

17Claims

0Family size

Assignee

PolyOne Corporation · US

Inventors

Jörg Vortkort · Garstedt, DE
Friedrich Wilhelm Gräbner · Seevetal, DE
Andre Bontemps · Hamburg, DE
Stefan Volkmann · Eschede, DE

Key dates

Filing date	Aug 15, 2001
Grant date	Aug 10, 2004
Priority date	—
Expiry date	Aug 15, 2021

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L2207/04
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The invention relates to a thermoplastic vulcanizate comprising four components (A, B. C, D), notably: a thermoplastic (A); a substantially non-cross-linked polyethylene (B); an at least partially vulcanized rubber (C); a softener (D); as well as standard blend ingredients (E). The above mixture contains between 5 and 20% by weight thermoplastic (A), in relation to the sum of the four components (A, B, C, D). The invention also relates to advantageous material parameters and process steps.

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