The process was invented by a Russian, Via wikipedia:
"The Russian chemist Sergei Vasilyevich Lebedev was the first to polymerize butadiene in 1910....
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...In 1926 he invented a process for manufacturing butadiene from ethanol, and in 1928, developed a method for producing polybutadiene using sodium as a catalyst.
The government of the Soviet Union strove to use polybutadiene as an alternative to natural rubber ...
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That War Department technical manual codified how the US Army would apply mechanized logistics - pallets, forklifts and warehousing using same - world wide.
But as the figure I used above noted, Ukraine is mostly flat and that is bad for DSMAC accuracy.
An analysis of the data bases of downed Shaheds will yield the landmarks these drones are using.
That data, plus an AI analysis of past Shahed trajectories in GNSS jammed...
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...areas, plus maps of Ukrainian cell phone tower networks that Shahed SIM cards access, should allow operational analysis predictions of future Shahed landmark checkpoints to set up quick reaction Ukrainian TDF mobile AA gun "flak traps."
The British Army in WW2 need it's "Phantom" or "J-Service" to listen to its own army's radio circuits to get accurate reports to senior leaders that were slow and...call it...garbled on the way to senior leadership.
The WW2 US Army duplicated this practice and created a dedicated radio units called SIAM - Signal Information and Monitoring - whose sole mission was to monitor the radio traffic of US units for violations of signal procedures and cipher security.
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Ukraine's use of landlines and Starlink in lieu of point to point HF/VHF/UHF radio to beat Russian electronic warfare will require something very different than a WW2 British J-Service or US Army SIAM platoon.
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OSINT & Western intelligence now needs to be looking for mass deployments of Chinese 21st century prefabricated Mulberry harbor equivalents.⬇️
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The @thinkdefence article on the Expeditionary Elevated Causeway (ELCAS) will give anyone caring to look an idea of what to be searching for in Chinese ports and military exercises.