Patent ID: 11879023
Assignee: UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE AIR FORCE
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. A process of making an article said process comprising casting, direct ink writing, and/or VP 3D printing a composition comprising:
a) a polydiene polymer, polydiene copolymer, hydrogenated vinyl ether-terminated polyolefin and/or vinyl ether terminated poly(tetramethylene oxide);
b) a polythiol crosslinker selected from the group consisting of 1,4-butanedithiol; 4,5-bis(mercaptomethyl)-o-xylene; 1,4-benzenedithiol; 4,4′-biphenyldithiol; 1,3,5-benzenetrithiol; 2,3-butanedithiol; 1,3-benzenedithiol; 1,10-decanedithiol; DL-dithiothreitol; dithioerythritol; 1,5-dimercaptonaphthalene; 3,6-dioxa-1,8-octanedithiol; 3,7-dithia-1,9-nonanedithiol; 1,2-ethanedithiol; 1,6-hexanedithiol; bis(2-mercaptoethyl) sulfide; 1,8-octanedithiol; 1,9-nonanedithiol 1,3-propanedithiol; 1,5-pentanedithiol; 4,4′-thiobisbenzenethiol; tetra(ethylene glycol) dithiol; 1,11-undecanedithiol; hexa(ethylene glycol) dithiol; 1,16-hexadecanedithiol and mixtures thereof;
c) a UV initiator;
d) an optional adjunct;
e) a thermal initiator is present in said composition, based on total composition weight at a level of from about 0.25 wt. % to about 15 wt. %; and
f) an optional inhibitor;, subjecting said composition to UV light during said casting, direct ink writing, and/or VP 3D printing and thermally post curing said article.