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2 550 775

(13)

(51)

IPC

C04B24/00(2006-01-01)

(21) (22)

Application

2013151766/03, 2013-12-30

(24)

Start date

2013-12-30

(22)

Actual filing date

2013-12-30

(45)

Published

2015-05-10

(72)

Inventor

Khromova Tat'Jana LeonidovnaPoljakov Vjacheslav SergeevichBazarov Jurij MikhajlovichPadokhin Valerij Alekseevich

(73)

Holder

Federal'Noe Gosudarstvennoe Bjudzhetnoe Obrazovatel'Noe Uchrezhdenie Vysshego Professional'Nogo Obrazovanija Gosudarstvennyj Khimiko-Tekhnologicheskij Universitet" Vpo

COMPLEX ADDITIVE FOR CONCRETE MIXTURES Russian patent published in 2015 - IPC C04B24/00

Abstract RU 2550775 C1

FIELD: chemistry.

SUBSTANCE: complex additive contains, wt %: caprolactam oligomers recovered by filtration from extraction waters from the stage of granulated polyamide-6 extraction after preparing by hydrolytic polymerisation of caprolactam - 60-75; sodium sulphate - 2-5; polyvinyl alcohol - 15-20 and water - 8-15.

EFFECT: higher strength, lower water absorption and improved plasticising ability of the additive.

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RU 2 550 775 C1

Authors

Khromova Tat'Jana Leonidovna

Poljakov Vjacheslav Sergeevich

Bazarov Jurij Mikhajlovich

Padokhin Valerij Alekseevich

Dates

2015-05-10—Published

2013-12-30—Filed