Process for the Preparation of a Polyethersulfide

Process for the production of a mercapto-terminated liquid polymer with the formula HS-R-(Sy-R)t-SH, wherein each R is independently selected from branched alkanediyl or branched arenediyi groups and groups with the structure -(CH2)p-O-(CH2)q-O-(CH2)r- and wherein 0-20% of the number or R-groups in...

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Bibliographic Details
Main Authors TOBIS JAN, SONNENBURG GÜNTER, KLOBES OLAF
Format Patent
LanguageEnglish
Published 02.06.2016
Subjects
CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Summary:Process for the production of a mercapto-terminated liquid polymer with the formula HS-R-(Sy-R)t-SH, wherein each R is independently selected from branched alkanediyl or branched arenediyi groups and groups with the structure -(CH2)p-O-(CH2)q-O-(CH2)r- and wherein 0-20% of the number or R-groups in the polymer are branched alkanediyl or branched arenediyl groups and 80-100% of the number or R-groups in the polymer have the structure -(CH2)p-O-(CH2)r-, wherein t has a value in the range 1-60, y is an average value in the range 1.0-1.5, q is an integer the range 1 to 8, and p and r are integers the range 1-10. The resulting polymer has an improved ability of recovering its original shape after release from deforming compression forces and improved tendency to recover during the application of those forces
Bibliography:Application Number: US201414905087