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IPC

C08L63/02(2006-01-01)

B32B27/38(2006-01-01)

C08J5/24(2006-01-01)

(21) (22)

Application

2009110884/05, 2009-03-26

(24)

Start date

2009-03-26

(22)

Actual filing date

2009-03-26

(45)

Published

2011-06-10

(72)

Inventor

Ushakov Andrej Evgen'EvichKlenin Jurij GeorgievichSorina Tat'Jana GeorgievnaKorobko Anatolij PetrovichPenskaja Tat'Jana Vladimirovna

(73)

Holder

Obshchestvo S Ogranichennoj Otvetstvennost'Ju Ispytatel'Nyj Tsentr Apatehk-Dubna" Apatehk-Dubna")

METHOD OF PRODUCING BINDER FOR PREPREG (VERSIONS), BINDER FOR PREPREG (VERSIONS), PREGREG AND ARTICLE Russian patent published in 2011 - IPC C08L63/02 B32B27/38 C08J5/24

Abstract RU 2420547 C2

FIELD: chemistry.

SUBSTANCE: binder is obtained through the following steps. High-molecular epoxy resin is dissolved in a true solution of solid epoxy resin with solubility parametre in a ketone solvent not less than 23 MPa^1/2. Phosphorus-containing epoxy resin is dissolved in the ketone solvent. The obtained solution of the phosphorus-containing epoxy resin is added to a mixture prepared from at least one liquid epoxy resin based on bis-phenol A. A latent hardener and an accelerator are added to said mixture. The solution of high-molecular epoxy resin is mixed with a mixture prepared from at least one liquid epoxy resin, the phosphorus epoxy resin, hardener and accelerator.

EFFECT: invention enables to obtain binder with improved adhesion-cohesion characteristics and a prepreg with high combustion resistance.

39 cl, 3 tbl, 4 ex

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RU 2 420 547 C2

Authors

Ushakov Andrej Evgen'Evich

Klenin Jurij Georgievich

Sorina Tat'Jana Georgievna

Korobko Anatolij Petrovich

Penskaja Tat'Jana Vladimirovna

Dates

2011-06-10—Published

2009-03-26—Filed