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Hard to find ingredients
Hello,
I’ve been having a really tough time locating these 2 ingredients for use in nail polish formulations. Can anyone here point me in the right direction or let me know of suitable alternatives?1. Adipic acid/neopentyl glycol/trimellitic anhydride copolymer (cas 28407-73-0)2. Phthalic Anhydride/Trimellitic Anhydride/Glycol Copolymer (cas 000000-75-2)Thank you for your time. -
8 Replies
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The first took me about 45 seconds to get a good lead, the second seems to be proprietary to Avon. Where have you been looking?
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I was all over Google. I also checked out ULProspector and even Alibaba (though i’d rather not import if possible),
Are there any other good chem/material search engines I should be looking at? I finally found a supplier this morning (Dorsett and Jackson) that looks like they can take care of the first one.The second one I can’t seem to locate anywhere. It’s in a bunch of nail polishes from various brands too… might need an alternative for this one. -
pcpc buyers guide is always my starting point. The fact that the guide doesn’t recognize the second one as a valid INCI name makes me suspicious. It does list the first as being made by Unitex Chemical Corporation, which is now a part of Lanxess Corporation.
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@Bobzchemist, if you put “glycols” instead of “glycol” in the second name, you’ll find the sole supplier (Estron Chemical Inc.); other sources suggest the trade name of this material is Polynex, though I couldn’t find any details about it on their website
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Thanks, Bill!
I gave myself a time limit of 5 minutes to look for info, but even if I had taken an hour, I wouldn’t have caught that.Not to shill for the PCPC, but this kind of computer-stymieing misspelling is exactly why a paper copy of the INCI dictionary is still valuable. Used copies of prior editions are available for a more reasonable price, and still have 80-90% of the information needed. -
Of course, if the PCPC wanted to invest a bit more money in their online product, search problems like that could be readily remedied.
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I don’t think they ever will, but it’s a real shame. With a better search, more frequent updates, and some minimal time taken to verify supplier information, they could have easily been the very best source of information on anything with an INCI name. Google licenses their search engine to websites, so there’s no reason except for money to have a sub-standard search ability.
Instead, they’re at a point where they’re rapidly falling behind ULProspector and SpecialChem. Right now, there’s not one single site that consolidates everything, but I can see it coming - and it won’t be the buyers guide. I think the PCPC’s anachronistic, desperate desire to prevent their source material from being easily and freely available on the web has clouded their judgement - they money that they could have made from small, discrete ads would have vastly overwhelmed the money they are currently extorting for new editions of the Dictionary, etc. by now. -
for what it’s worth, I just found it by searching for “phthalic anhydride” on the PCPC website
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