ALIPHATIC POLYSULPHIDE POLYMER WITH TERMINAL EPOXY GROUPS Russian patent published in 2022 - IPC C08G75/14 C08G59/30 

Abstract RU 2784965 C2

FIELD: chemistry.

SUBSTANCE: invention can be used in manufacturing adhesives, coatings, and sealing agents. Proposed is an aliphatic polysulphide polymer with terminal epoxy groups by the formula R"-CHOH-CH2-S-R-(Sy-R)t-S-CH2-CHOH-R", wherein each R is independently selected from branched alkanediyl or arenediyl groups and groups with the structure -(CH2)a-O-(CH2)b-O-(CH2)c-, wherein t is from 1 to 60, y is from 1.0 to 2.5, b is from 1 to 8, and a, c are from 1 to 10, and wherein each R" independently represents a radical by the following formula:

,

wherein m, n, o, p, q, and r are from 1 to 10. Also proposed is a method for producing the aliphatic polysulphide polymer.

EFFECT: improved stability during storage and flexibility of the polysulphide polymer.

14 cl, 4 dwg, 1 tbl, 3 ex

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RU 2 784 965 C2

Authors

Probst, Kristian

Klobes, Olaf

Burkkhardt, Folker

Dates

2022-12-01Published

2021-05-18Filed