METAPHENYLENEDIAMINE-BASED COPOLY(URETHANE-IMIDE) POLYMER COMPOSITES WITH SHAPE MEMORY EFFECT Russian patent published in 2022 - IPC C08G73/10 

Abstract RU 2778883 C1

FIELD: polymers.

SUBSTANCE: invention relates to a copoly(propylene glycol urethane-metaphenylene pyromellithymide) PM-2300-MF used for producing composite materials for the manufacture of articles for structural, electrotechnical, general, and special purposes used in automobile-, aircraft-, and shipbuilding, in the petrochemical industry, and in medicine. Copoly(urethane-imide) PM-2300-MF constitutes a compound based on a 2,4-toluylene diisocyanate-terminated polypropylene glycol with a molecular weight of 2,300, metaphenylene diamine, and a pyromellite anhydride by the formula

where the value of n is such that the resulting characteristic viscosity of copoly(urethane-imide) is 1.03*100 cm3/g. The value of the degree of polymerisation of polypropylene glycol k is 32.

EFFECT: composites based on copoly(urethane-imide) PM-2300-MF have a shape memory effect.

1 cl, 5 dwg, 4 tbl

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RU 2 778 883 C1

Authors

Didenko Andrei Leonidovich

Vaganov Gleb Viacheslavovich

Svetlichnyi Valentin Mikhailovich

Kuznetsov Danila Aleksandrovich

Kudriavtsev Vladislav Vladimirovich

Iudin Vladimir Evgenevich

Popova Elena Nikolaevna

Kamalov Almaz

Dates

2022-08-29Published

2021-08-04Filed