Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Formaldehyde | HCID 712 | — |
| Reactant | p-Toluenesulfonic acid | HCID 6101 | — |
| Reactant | 4-Hydroxybiphenyl | HCID 7103 | — |
| Solvent | Toluene | HCID 1140 | — |
| Product | HCID 68541953 | HCID 68541953 | — |
Reaction Steps
A mixture composed of 170 parts of p-phenylphenol, 22.5 parts of 80% paraformaldehyde, 1.7 parts of p-toluenesulfonic acid, and 200 parts of toluene was heated at 100° C. for 2 hours. The reaction product was freed of toluene and water by distillation under reduced pressure. Thus there was obtained 172 parts of light brown p-phenylphenol-formaldehyde-resin having a softening point of 85° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US04920186 |
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| Source dataset | uspto-grants-1990_04 |
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| ORD ID | ord-5b7010ae0f9841fd852c71306ac7ae63 |
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| Source note | uspto-grants-1990_04 |
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