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2 454 444

(13)

(51)

IPC

C09J5/00(2006-01-01)

C09J161/24(2006-01-01)

B82B1/00(2006-01-01)

(21) (22)

Application

2011103269/05, 2011-02-01

(24)

Start date

2011-02-01

(22)

Actual filing date

2011-02-01

(45)

Published

2012-06-27

(72)

Inventor

Levin Mark NikolaevichShamaev Vladimir AleksandrovichNikulina Nadezhda SergeevnaKopejkin Jurij Nikolaevich

(73)

Holder

Zakrytoe Aktsionernoe ObshchestvoObshchestvo S Ogranichennoj Otvetstvennost'Ju

METHOD OF CEMENTING MODIFIED TIMBER Russian patent published in 2012 - IPC C09J5/00 C09J161/24 B82B1/00

Abstract RU 2454444 C1

FIELD: process engineering.

SUBSTANCE: invention relates to cementing of modified timber. Proposed method comprises preparation of glue. Said glue is mixed with hardener and applied onto surfaces to be cemented together. Said surface are jointed and kept at 1.6 MPa and 20-120°C for 0.5-5 h. Thereafter, glue layer is processed by pulse magnetic field with intensity of 16-20·10⁴ A/m for 20 min. Said glue contains nanocrystalline cellulose and urea-formaldehyde resin or phenol-formaldehyde resin.

EFFECT: twice as high strength of bond.

1 tbl, 4 ex

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Authors

Levin Mark Nikolaevich

Shamaev Vladimir Aleksandrovich

Nikulina Nadezhda Sergeevna

Kopejkin Jurij Nikolaevich

Dates

2012-06-27—Published

2011-02-01—Filed