Phenol formaldehyde resin (P-F-R-2) home ICD10: L23.9


Formule CAS
   



Background
Phenol formaldehyde resin is based on phenol, resorcinol and formaldehyde containing methylol phenols. When phenol reacts with an excess of formaldehyde under alkaline conditions, a resol resin is produced. As formaldehyde is in excess in the process, various methylol phenol compunds are formed. the resol resins are formable, fusbile and soluble. They can be considered as prepolymers and may be transformed into the final stage simply by heating the resol. Commercially, phenol-formaldehyde resins are most commonly based on phenol itself but other phenols such as cresols, xylenols, resorcinol, bishenol A, and p-tert-butylphenol and nonlyphenol can be used.

Synonyms
Phenol formaldehyde resin
P-F-R-2

Uses
Adhesives
Binders
Casting sand
Electronics (integrated circuits)
Impregnation products
Inks
Laminates
Nails adhesive
Surface coatings
Textiles
Typewriter correction paper (binder for powder)

Cross-Reactions

Unusual Reactions
Airborne contact dermatitis

Back to list of contact allergens


Referenties
1. Fregert, S., Irritant dermatitis from phenol-formaldehyde resin powder. Contact Dermatitis, 1980. 6(7): p. 493.
2. Malten, K.E. and E. Seutter, Phenolformaldehyde resin in paper. Contact Dermatitis, 1984. 11(2): p. 127-8.
3. Bruze, M., Contact sensitizers in resins based on phenol and formaldehyde. Acta Dermato-Venereologica. Supplementum, 1985. 119: p. 1-83.
4. Bruze, M., S. Fregert, and E. Zimerson, Contact allergy to phenol-formaldehyde resins. Contact Dermatitis, 1985. 12(2): p. 81-6.
5. Bruze, M., Simultaneous reactions to phenol-formaldehyde resins colophony/hydroabietyl alcohol and balsam of Peru/perfume mixture. Contact Dermatitis, 1986. 14(2): p. 119-20.
6. Bruze, M., Detection of contact allergy to phenol formaldehyde resins. Contact Dermatitis, 1986. 14(2): p. 127.
7. Bruze, M., et al., Demonstration of contact sensitizers in resins and products based on phenol-formaldehyde. Contact Dermatitis, 1986. 14(3): p. 146-54.
8. van der Willigen, A.H., E. Stolz, and T. van Joost, Sensitization to phenol formaldehyde resin in rubber glue. Contact Dermatitis, 1987. 16(5): p. 291-2.
9. Bruze, M., Patch testing with a mixture of 2 phenol-formaldehyde resins. Contact Dermatitis, 1988. 19(2): p. 116-9.
10. Bruze, M. and G. Almgren, Occupational dermatoses in workers exposed to resins based on phenol and formaldehyde. Contact Dermatitis, 1988. 19(4): p. 272-7.
11. Seidenari, S., et al., Patch and prick test study of 593 healthy subjects. Contact Dermatitis, 1990. 23(3): p. 162-7.
12. Vincenzi, C., et al., Allergic contact dermatitis due to phenol-formaldehyde resins in a knee-guard. Contact Dermatitis, 1992. 27(1): p. 54.


Author(s):
dr. Jan R. Mekkes. Dermatologist, Amsterdam UMC.

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