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(19)

RU

(11)

2 798 571

(13)

C1

(51)

IPC

C08L75/14(2006-01-01)

C08G18/69(2006-01-01)

C08G18/10(2006-01-01)

C08G18/75(2006-01-01)

(21) (22)

Application

2022119995, 2022-07-21

(24)

Start date

2022-07-21

(22)

Actual filing date

2022-07-21

(45)

Published

2023-06-23

(72)

Inventor

Strelnikov Vladimir NikolaevichSenichev Valerii IulevichSlobodiniuk Aleksei IgorevichShchukina Elena ViktorovnaSharova Natalia OlegovnaChizhev Sergei Anatolevich

(73)

Holder

Federalnoe Gosudarstvennoe Biudzhetnoe Uchrezhdenie Nauki Permskii Federalnyi Issledovatelskii Tsentr Uralskogo Otdeleniia Rossiiskoi Akademii Nauk

CAST POLYURETHANE COMPOSITION Russian patent published in 2023 - IPC C08L75/14 C08G18/69 C08G18/10 C08G18/75 

Abstract RU 2798571 C1

FIELD: hydroacoustics.

SUBSTANCE: molded polyurethane composition used to produce hydroacoustic products for the fishing industry and shipbuilding. Cast polyurethane composition contains 84.8-85.7 wt. pts. of oligobutadiene isoprendiol with a molecular weight of 4000 and a statistical distribution of butadiene and isoprene components, taken in a molar ratio of 70:30, 9.4-9.5 wt. pts. 3-isocyanatomethyl-3,5,5-trimethylcyclohexyl isocyanate and 4.8-5.7 wt. pts. 3.3' -dichloro-4,4' -diaminodiphenylmethane.

EFFECT: resulting composition has optimal acoustic characteristics and an increased level of viability.

1 cl, 1 tbl, 2 ex

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RU 2 798 571 C1

Authors

Strelnikov Vladimir Nikolaevich

Senichev Valerii Iulevich

Slobodiniuk Aleksei Igorevich

Shchukina Elena Viktorovna

Sharova Natalia Olegovna

Chizhev Sergei Anatolevich

Dates

2023-06-23—Published

2022-07-21—Filed

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