Three reasons:
1) Because we're all too damn busy formulating products. Research, particularly published research, takes time that our employers would rather we spend making money for them.
2) When we do conduct research, it is almost always to solve a very specific problem. It is nearly impossible to publish those kinds of results without either revealing proprietary information or being so vague as to be mostly useless. As a result, permission to publish research is rarely forthcoming.
3) Little to no payoff for the chemist. Given that work time has to be spent working, even if we do get permission to share some of the results of research we've done, the preparation of an article for publishing/presentation would have to be done at the least on our own time, and possibly even at home. Even if you're accepted to present a paper at a conference, you still have to pay the full conference fee.
As a result, the majority of non-academic chemists doing research are working for suppliers who are trying to sell ingredients, and only just enough research is done to establish talking/selling points for the salesforce. Why would the any of the rest of us bother to do this?
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