PHOTOINITIATORS FOR POLYOLEFINS Russian patent published in 2023 - IPC C07C49/786 C07C49/84 C07C69/738 C08F2/50 C08F255/02 C08J3/22 C08J3/24 C08J5/18 C08K5/07 

FIELD: chemical industry.

SUBSTANCE: present invention relates to the use of an alkoxybenzophenone as a photoinitiator in a process for crosslinking at least one polyolefin. Alkoxybenzophenone has the general formula (I):

where R₁ represents -O-(CH₂)_n-CH₃ where n is from 0 to 3, or -O-(CH₂)_n-(C=O)-O-(CH₂)_m-CH₃ where n is from 1 to 3 and m is from 0 to 3; R₂ is -O-(CH₂)_n-CH₃, where n is an integer from 4 to 15; and R₃ is -H or -O-(CH₂)_n-CH₃, where n is an integer from 4 to 15. The invention also relates to a compound of formula I, to a photoinitiator, to a composition and master batch for crosslinking at least one polyolefin, as well as to a method for crosslinking at least one polyolefin.

EFFECT: development of a family of alkoxybenzophenones, which should be used for crosslinking polyolefins as photoinitiators, demonstrating a high degree of photocuring into high compatibility with the cross-linkable polyolefin or copolymers.

14 cl, 5 tbl