Patent · US Active

Adhesion aging protection in corded rubber articles

US10737882B2 · kind B2 · utility

0Cited by

8References

15Claims

0Family size

Assignee

ContiTech USA, Inc. · US

Inventors

Katja Henning · Oettingen, DE
Stefan Sostmann · Langenhagen, DE
Stavros Podias · Oettingen, DE
Thomas George Burrowes · North Canton, US

Key dates

Filing date	Apr 25, 2019
Grant date	Aug 11, 2020
Priority date	—
Expiry date	Apr 25, 2039

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08K2003/2296
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A conveyor belt including a carry cover layer, a reinforcement layer which is situated below the carry cover layer, and a pulley cover layer which is situated below the reinforcement layer, where the reinforcement layer is comprised of steel cordage and rubber matrix, and wherein the rubber matrix includes zinc oxide in an amount greater than 5 phr and a cobalt derivative in an amount of 1 phr or greater. In some cases, the rubber matrix includes zinc oxide in an amount of 11 phr or greater, or even in an amount of 16 phr or greater. In some cases, the rubber matrix includes the cobalt derivative in an amount of 2 phr or greater, or even in an amount of from 3 phr to 4 phr. In some aspects, the rubber matrix is devoid of lead oxide.

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