Plastics petroleum and polymers (from the pizaa pals playzone website) can be dated back to 1972, maybe 1938 according to this image, from the meow wolf wiki.

https://meow-wolf.fandom.com/wiki/Pizza_Pals_Playzone/Documents?file=PPP_1972.jpg

They claim to have a registered trademark for plastic petroleum and polymers (they say plastics petroleum and polymers TM on this image and on the pizza pals playzone website) but I can't find it in US trademark searches. The text in the image talks about de-aging (high degree freemasons believe that sexually abusing kids gives them immortality).