Synonym(s)
CAS number: 9042-82-4; Poly(oxy-1,2-propanediyl), .alpha.-hydro-.omega.-hydroxy-, polymer with 1,1'-methylenebis[4-isocyanatocyclohexane]. (51 mol PO avergae molar ratio)
DefinitionThis section has been translated automatically.
PPG-51 is the acronym for "polypropylene glycol", the polymer of propylene glycol (1,2-propanediol), a dihydric alcohol. The number after "PPG" indicates the average number of propylene glycol molecular units, for "PPG-51" this is 51 propylene glycol molecular units. "SMDI" is the acronym for methylenedicyclohexyl isocyanate "copolymer" bistructural polymers, which are composed of 2 different monomer units (here PPG-51 and SMDI).
The PPG-12/SMDI copolymer is used in cosmetic formulations. The substance mixture acts as a film former (forms a film on skin, hair or nails when applied), hair conditioning agent (makes the hair easy to comb, smooth, soft and shiny and gives it volume) and as a hair fixing agent.
Prof. Dr. med. Peter Altmeyer