ALIPHATIC EPOXY-TERMINATED POLYSULFIDE POLYMER

• Main Authors: BURKHARDT, Volker, KLOBES, Olaf, PROBST, Christian
• Format: Patent
• Language: English
• Published: 25.11.2021
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

An aliphatic epoxy-terminated polysulfide polymer has the formula R″-CHOH-CH2-S-R-(Sy-R)t-S-CH2-CHOH-R″ and is formed by a process, where each R is independently chosen from branched alkanediyl or branched arenediyl groups and groups with the structure -(CH2)a-O-(CH2)b-O-(CH2)c- and about 0 to about 20% of the number of R-groups are branched alkanediyl or branched arenediyl groups and about 80 to about 100% of the number of R-groups have the structure -(CH2)a-O-(CH2)b-O-(CH2)c-, where t is from about 1 to about 60, y is an average value of from about 1.0 to about 2.5, b is an integer value of from about 1 to about 8, and a and c are independently integers from about 1 to about 10, and where each R″ is independently a particular radical where, m, n, o, p, q and r independently have a value of from about 1 to about 10.