Anti-corrosion composition

US10287460B2 · kind B2 · utility

Assignee

• DENSO CORPORATION · JP

Inventors

• Thomas Kaiser · Kelkheim, DE
• Oleg Gryshchuk · Leverkusen, DE

Key dates

• Filing date: Nov 16, 2015
• Grant date: May 14, 2019
• Expiry date: Nov 16, 2035

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09J2423/00
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to an anti-corrosion composition comprising at least one first butyl rubber having an apparent viscosity according to Brookfield measured at 66° C. according to DIN EN ISO 2555 in a range of approximately 400,000 mPa·s to approximately 2,000,000 mPa·s and has an average molecular weight in a range of approximately 20,000 to approximately 60,000 and at least one second butyl rubber having an average molecular weight in a region of approximately 150,000 to approximately 2,000,000 and a Mooney viscosity ML (1+8) measured at 125° C. in a range of approximately 25 MU to approximately 65 MU, measured according to ISO 289.