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(19)

RU

(11)

2 678 316

(13)

C1

(51)

IPC

H01B3/18(2006-01-01)

H01B3/02(2006-01-01)

H01B7/295(2006-01-01)

(21) (22)

Application

2018105833, 2018-02-15

(24)

Start date

2018-02-15

(22)

Actual filing date

2018-02-15

(45)

Published

2019-01-28

(72)

Inventor

Golosova Nina ValerevnaChumaevskij Viktor Alekseevich

(73)

Holder

Zakrytoe Aktsionernoe Obshchestvo

COMPOSITION FOR ELECTRICAL INSULATION OF ISOTROPIC ELECTRICAL STEEL Russian patent published in 2019 - IPC H01B3/18 H01B3/02 H01B7/295 

Abstract RU 2678316 C1

FIELD: chemistry; electricity.

SUBSTANCE: invention relates to the field of electrical insulation compositions for isotropic electrical steel. Composition for electrical insulation of isotropic electrical steel contains, by wt. %: orthophosphoric acid – 12.4–17.9, magnesium oxide – 0.33–0.83, aluminum hydroxide – 0.29–0.87, surfactant – C9H19C6H4O(C2H4O)nH – 0.2–1.2, dipropylene-glycol mono n-butyl ether – 0.01–0.3, polyvinyl alcohol – 4–5, chemical purified water – up to 100.

EFFECT: invention allows to obtain a composition with high moisture resistance, electrical resistance, with non-adhesion of the processed steel sheets in coils, fire resistance due to the exclusion of organic solvents.

1 cl, 1 tbl, 4 ex

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RU 2 678 316 C1

Authors

Golosova Nina Valerevna

Chumaevskij Viktor Alekseevich

Dates

2019-01-28—Published

2018-02-15—Filed

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