Serigraphic Processes Area -
... LARGE FORMAT SERIGRAPHIC PRINTING are carried out here, on all types of supports,
with a choice of special, permanent inks, of a glycerol-ophtalic type, which ...

The French is "glycérophtalique" this is why you haven't found it.
"Glycerophtalic" doesn't seem to be used a lot in English, the English brands usually call this "Alkyd paints" - while in French it is colloquially called "glycéro" only (ex: "j'ai peint cette porte à la glycéro")

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Note added at 2003-05-29 14:45:27 (GMT)
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\"In emulsion paints the vehicle is based on a co-polymer of vinyl acetate and an acrylic ester, whilst in gloss paints it is an alkyd resin, which is a condensation polymer produced from, for example, the reaction of phthalic anhydride with glycerol. \"
http://www.chemical-industry.org.uk/chemfiles/chemfiles.php3...

\"Alkyds require three components; a polyhydric alcohol (usually glycerol or
pentaerythritol), a polybasic acid (normally phthalic anhydride) and an unsaturated
mono acid (normally added in the form of a drying oil). They are therefore often
described as oil-modified polyester paints. Further modification to the alkyd resins can
be achieved by adding compounds such as styrene or vinyl toluene to improve drying
time. Alkyd resins have remained the binding media in the vast majority of all solvent-borne
commercial paints since about the mid 1930’s.\"
http://www.irug.org/documents/1Learner.pdf

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Note added at 2003-05-29 14:54:42 (GMT)
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On peut préciser :
\"Phthalic glycerol alkyd resin\" - si c\'est plus technique et concerne la composition de la peinture -

Ex :

\"Mixture of
Modified phthalic glycerol alkyd resin and butyl alcohol \"
http://www.cdms.net/ldat/mp4DR001.pdf

\"phthalic glycerol alkyd resin, 497.88. demeton, 492.58. prunamide, 457.7. \"
http://bonita.mbnms.nos.noaa.gov/sitechar/socit3.html

Is it rather 'glycérophtalique' = Glycerophtalic: a varnish for exteriors and interiors. Recommended for use on interior and exterior wood. Gives a very hard and solid surface.

According to Collins-Robert Senior, this is what it means, and it is commonly found in DIY stores etc.

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Note added at 2003-06-02 18:31:57 (GMT) Post-grading
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I am very concerned that we may here be perpetuating a spelling mistake; surely it should be glycero-ph-th-alic, with the second \'h\'?

If you check the Google references carefully, most of the ones without the second \'h\' seem to originate from France or French sites

Can anyone confirm for sure one way or the other?