I do like the story that Post-It notes were invented by someone trying to create a new low-cost superglue, failing spectacularly, and then finding a way to market that failurehttps://twitter.com/mattdpearce/status/1230316704284020736?s=19 …
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At that point it ceased to be a solution for their existing engineering problem and the problem became finding a problem it was a solution to (i.e. a marketing problem)
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I know more about this than average because this is the exact field (adhesive polymers) my dad worked in when I was a kid and he used to talk about the big dream of ending up rich the way the 3M guy did
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Unfortunately it doesn't seem that many opportunities for striking it rich in adhesives exist anymore, although he did apparently work on a patent for the polymer emulsions used to screen print ceramics
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what does it do under higher pressure or heat? like, could you iron post-its to make them permanent? (sorry if this is a stupid question, not sure what counts as easy for no easy way)
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No, the microsphere can't un-microsphere without breaking down chemically and no longer being adhesive at all
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