Preparation of ketone-formaldehyde resins

Details Preparation of ketone-formaldehyde resins Preparation of ketone-formaldehyde resins

2007-02-27

2007-02-27

Truong, Duc (Department: 1711)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From ketone or ketene reactant

C528S220000, C528S228000, C528S482000, C528S493000, C528S495000, C528S501000, C528S503000, C428S524000

Reexamination Certificate

active

10922909

ABSTRACT:
A process for preparing ketone-formaldehyde resins, especially acetophenone- and cyclohexanone-formaldehyde resins, having a low water content and high thermal stability and yellowing resistance, and a process for their production and their use.

REFERENCES:
patent: 4731434 (1988-03-01), Dorffel

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