SOLUTION FOR CLEANING MOLDS FROM DEPOSIT Russian patent published in 1999 - IPC

Abstract RU 2132410 C1

FIELD: manufacture of laminated plates for removing melamine- carbamide resin deposit from press gaskets. SUBSTANCE: solution comprises water and cleaning components such as Cr6+ ions, potassium bifluoride and nitric acid, ratio of components being as follows, %: compounds Cr6+ (in terms of CrO3, 2-3; potassium bifluoride, KHF2 4-6; nitric acid; 3.5-5; and water, the balance. EFFECT: shorter cleaning time and excellent quality of cleaning. 2 cl, 4 ex, 1 tbl

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RU 2 132 410 C1

Authors

Lebedeva S.V.

Kazennova E.I.

Chumaevskij V.A.

Dates

1999-06-27Published

1997-12-30Filed