STABILIZED PERFLUOROPOLYETHER COMPOSITION

    公开(公告)号:JPH01265049A

    公开(公告)日:1989-10-23

    申请号:JP9169488

    申请日:1988-04-15

    摘要: PURPOSE:To obtain the title composition useful as lubricant, etc., having excellent heat stability even in the presence of metal, by simultaneously blending a perfluoropolyether and a phosphite compound. CONSTITUTION:A perfluoropolyether shown by formula I (Rf is perfluoromethyl or perfluoroethyl; CF2CF2O and CF2O are randomly bonded; m+n are 3-200; m:n=10:90-90:10) is blended with a perfluoropolyether containing a terminal arylamide group, a reaction product of a diacid fluoride of a perfluoropolyether shown by formula II and an N,N'-diarylphenylenediamine and a compound shown by formula III (R' is alkyl or alkylaryl). The blending ratio is about 2.5-3wt.% of the two components based on the compound shown by formula I and the weight ratio of both components is preferably 1:1.

    STABILIZED PRIMARY ALCOHOL ETHOXYLATE

    公开(公告)号:JPS61183241A

    公开(公告)日:1986-08-15

    申请号:JP2191685

    申请日:1985-02-08

    摘要: PURPOSE:To obtain a stabilized odorless aliphatic primary alcohol ethoxylate with very little change in carbonyl value, acid value, pH, hue, etc., with time, by incorporating lactic acid and/or lactate therein. CONSTITUTION:Lactic acid or lactate, e.g. sodium lactate or potassium lactate, or both are incorporated in a 6-30C aliphatic primary alcohol ethoxylate to stabilize the quality thereof. The lactic acid may be prepared by either one of the fermentation and synthetic methods, and the amount to be added is 1-0.05pts. wt. based on 100 pts. wt. aliphatic primary alcohol ethoxylate. Preferably, the pH of the aqueous solution is adjusted to 5-7 range. USE:Surfactants.