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(19)

RU

(11)

2 768 453

(13)

C1

(51)

IPC

C09D5/44(2006-01-01)

C09D5/14(2006-01-01)

C23F11/173(2006-01-01)

C25D13/04(2006-01-01)

(21) (22)

Application

2021101247, 2019-06-14

(24)

Start date

2019-06-14

(22)

Actual filing date

2019-06-14

(45)

Published

2022-03-24

(72)

Inventor

Bezer, SilviaZawacky, Steven R.Puodziukynaite, Egle

(73)

Holder

Ppg Industries Ohio, Inc.

METHOD FOR IMPROVING CORROSION RESISTANCE OF METAL SUBSTRATE Russian patent published in 2022 - IPC C09D5/44 C09D5/14 C23F11/173 C25D13/04 

Abstract RU 2768453 C1

FIELD: chemistry.

SUBSTANCE: invention can be used to produce an electrodeposited protective coating. Method of improving corrosion resistance of a metal substrate involves electrophoretic deposition of a curable composition on the substrate and curing the obtained coating by heating. Curable composition contains a resin phase dispersed in an aqueous medium. Said resin phase contains a non-thickened resin containing active hydrogen atoms with cationic salt groups, at least partially blocked polyisocyanate curing agent and an inorganic lamellar pigment having an average equivalent spherical particle diameter of at least 0.2 mcm. Weight ratio of pigment to binder is at least 0.5. Curable composition contains less than 8 wt. % of grinding carrier.

EFFECT: technical result consists in improvement of corrosion resistance of coating.

11 cl, 3 tbl, 7 ex

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RU 2 768 453 C1

Authors

Bezer, Silvia

Zawacky, Steven R.

Puodziukynaite, Egle

Dates

2022-03-24—Published

2019-06-14—Filed

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