Adhesion promoter for solventborne clearcoat materials

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United States of America Patent

PATENT NO 10344179
APP PUB NO 20160312057A1
SERIAL NO

15104615

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The present invention relates to a solventborne clearcoat material which comprises at least one additive preparable by reacting at least one alpha,omega-hydroxy-functionalized oligoester which has an OH number of 30 to 160 mg KOH/g, a theoretical carbon-carbon double bond content of 1 to 2.5 mmol/g, a number-average molecular weight of 1000 to 3000 g/mol, and a weight-average molecular weight of 2800 to 10 000 g/mol, and at least one alkoxysilane which possesses an OH-reactive functional group, the sum of the weight percentage fractions of all additives of the invention being 0.5 to 10 wt %, based on the total amount of the solventborne clearcoat material. The present invention further relates to a process for producing multicoat paint systems, and to multicoat paint systems producible by means of said process. The invention further relates to the use of the above-identified additive in solventborne clearcoat materials for the purpose of improving adhesion.

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Patent Owner(s)

Patent OwnerAddress
BASF COATINGS GMBHGLASURITSTR 1 MUENSTER 48165

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Andersen, Audree Havixbeck, DE 8 39
Boshe-Plois, Stefanie Ochtrup, DE 7 20
Corten, Cathrin Unna, DE 22 53
Feigl, Andreas Drensteinfurt, DE 10 22
Freitag, Nicole Muenster, DE 10 31
Niemeier, Manuela Drensteinfurt, DE 21 189
Raka, Fatmir Muenster, DE 19 35
Weiher, Christian Muenster, DE 8 24

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