Formaldehyde → Resorcinol-formaldehyde resin

HRID 963926Notes

Reaction equation

[C:1]1([CH:8]=[CH:7][CH:6]=[C:4]([OH:5])[CH:3]=1)[OH:2].[CH2:9]=[O:10].[OH-].[Na+]>>[C:1]1([CH:8]=[CH:7][CH:6]=[C:4]([OH:5])[CH:3]=1)[OH:2].[CH2:9]=[O:10]

Participants

Reactant 3

HCID 712Formaldehyde

HCID 5054Resorcinol

HCID 14798Sodium Hydroxide

Product 1

HCID 159980Resorcinol-formaldehyde resin

Procedure

The present invention provides a further method for preparing such a treating agent which comprises adding resorcinol and formaldehyde to an aqueous sodium hydroxide solution, followed by aging to obtain a resorcinol/formaldehyde mixture, and adding a latex to the resorcinol/formaldehyde mixture to obtain RFL, wherein a surfactant is added in a divided fashion firstly during the polymerization of the polymer component of the latex, and subsequently to the latex component after the polymerization and/or after the preparation of the RFL.

Workup

customThe present invention provides a further method
customfor preparing such a treating agent which

Sources & evidence

ORD record: ord-55c3d6f3f37f481990c0472b99a27c3f
Source dataset: uspto-grants-1998_06
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US05766762

Reaction notes

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