Abstract: The invention is a process for producing a propylene glycol monoalkyl ether which comprises first reacting propylene oxide and an alcohol in the presence of an alkali or alkaline earth metal alkoxide catalyst to produce an alkoxylation mixture comprising propylene glycol monoalkyl ether; distilling the alkoxylation mixture to produce a first overhead stream comprising propylene oxide and alcohol and a first bottoms stream comprising propylene glycol monoalkyl ether; and then distilling the first bottoms stream to produce purified propylene glycol monoalkyl ether as a second overhead stream. The reaction and/or one or more of the distillation steps occur in the presence of an alkali metal borohydride. The process produces propylene glycol monoalkyl ether with low UV absorbance and reduced carbonyl impurities.

Abstract: This invention relates to a composition containing (a) a component selected from the group of a mono- or poly- vinyl substituted mono- or poly-ether, a mono- or poly- vinyl substituted lactam, or a mixture thereof contained in an acidic medium and (b) an aliphatic, primary or secondary mono- or poly-amine at a concentration sufficient to adjust the pH of the composition above

Abstract: Polyether and polyester poloyols and polyurethane foams are stabilized by including therein stabilizers selected from (1) diphenylaminomethylbenzotriazole substituted by alkyl or phenylalkyl groups or (2) synergistic compositions consisting of (a) benzotriazole or alkylbenzotriazole and (b) secondary aromatic amine substituted by alkyl or phenylalkyl groups wherein the benzotriazole and amine is present in critical ratios. Furthermore, a method is disclosed for preparation of polyurethane foams from polyols and polyisocyanate that have reduced discoloration due to scorch by adding diphenylamino methylbenzotriazole or compositions of benzotriazole and secondary aromatic amine as scorch inhibitors to the polyol, foaming the polyol and curing.

Abstract: Use of amino derivatives supported on inert supports in fluorinated fluids utilized in devices subjected to high specific energies to reduce to levels lower than the toxicity limits the toxic decomposition products of said fluorinated fluids.

Abstract: A stabilizer composition useful as an additive for polyether polyols, particularly those employed in the manufacture of polyurethane foams, is provided which comprises a diphenylamine:isobutylene:diisobutylene reaction product, a sterically hindered phenol and a trihydrocarbyl phosphite.

Abstract: A mixture containing phenothiazines which is obtainable by reacting a mixture of diphenylamines comprising______________________________________ 1 to 5% by weight a) diphenylamine of 8 to 18% by b) 4-tert-butyldiphenylamine weight of 21 to 31% by c) one or more compounds selected from weight of i) 4-tert-octyldiphenylamine ii) 4,4'-di-tert-butyldiphenylamine iii) 2,4,4'-tris-tert-butyldiphenylamine 20 to 31% by d) one or more compounds selected from weight of i) 4-tert-butyl-4'-tert-octyldiphenylamine ii) 2,2'- or 2,4'-di-tert-octyldiphenylamine iii) 2,4-di-tert-butyl-4'-tert-octyldiphenylamine, and 15 to 29% by e) the compound weight of i) 4,4'-di-tert-octyldiphenylamine, or the compounds i) 4,4'-di-tert-octyldiphenylamine and ii) 2,4-di-tert-octyl-4'-tert-butyldiphenylamine, ______________________________________with 1 to 200 mol % of elemental sulfur, in the presence of 0.

Abstract: The invention relates to the high temperature stabilization of polyol heat transfer fluids by the use of N-phenyl-p-phenylenediamines.

Abstract: The invention relates to the use of certain styrenated diphenylamine and hindered phenol compositions for the stabilization of polyether polyols.

Abstract: The present application relates to a novel method of stabilizing the molecular weight of alkoxylates and stable compositions. The polyoxyalkylene compounds have incorporated into them, from the time of reaction of the alkylene oxide, a free radical type inhibitor which significantly improves stability of both the polymer.

Abstract: A method of indirect liquid phase heat transfer which comprises continuously circulating between a heat generating and a heating source or water-soluble or water-dispersible polymer having a viscosity of less than about 100 centistokes at 100.degree. F., of the formula:R(OAR').sub.xwhereinR is a C.sub.5 to C.sub.36 linear branched or alicyclic aliphatic hydrocarbyl group;O is oxygen;A is a polyoxyalkylene residue having oxyalkylene units derived from ethylene oxide or ethylene oxide and at least one other lower alkylene oxide having 3 or 4 carbon atoms;R' is hydrogen, a C.sub.1 to C.sub.8 alkyl group or nonbornyl; andx is an integer having a value of 1 to 6, wherein for values of x greater than 1 each AR' may be the same or different.

Abstract: A method of indirect liquid phase heat transfer utilizing as a heat transfer fluid a composition comprising polytetra(methylene oxide) or poly(trimethylene oxide) homopolymers having molecular weights of from about 300 to about 1,000.

Abstract: A stabilizer system containing at least one compound of the formula I ##STR1## and one compound of the formula II ##STR2## the substituents R.sup.1, R.sup.2, R and R' having the meanings defined in the text, and x being 1 to 3. This stabilizer system is suitable for use as an additive to a polyalkylene glycol base liquid for preventing the formation of rust, especially on iron-containing surfaces, the use of these lubricant compositions being possible also in the high-temperature range.

Abstract: Polyoxyalkylene polyether polyols are stabilized against oxidative degradation by incorporating therein a synergistic stabilizing composition containing (1) a mixture of butylated phenols consisting of 2-tertiary butyl phenol, 3,5-ditertiary butyl-4-hydroxyhydrocinnamate and 1,6-hexamethylene bis(3,5-ditertiary-butyl-4-hydroxyhydrocinnamate) or tetrakis [methylene(3,5-ditertiary butyl-4-hydroxyhydrocinnamate)] methane (2) a p,p'-dialkyldiphenylamine such as p,p'-dioctyldiphenylamine and (3) a phenothiazine compound. Polyurethane foams are stabilized against scorching when the stabilized polyols are utilized in the foam preparation or the stabilizing composition is added with other reactants.

Abstract: The autoxidation of aqueous detergent slurries containing major quantities of nonionic surfactant during spray-drying is inhibited by the use of a charge-transfer agent. The charge-transfer agent may be a charge-transfer acceptor or a charge-transfer donor or a precursor of either of these. The agent may be present in an amount of from 0.05 to 2% by weight and the nonionic surfactant in an amount of 3% or more by weight based on the weight of the fully formulated detergent powder. The preferred charge-transfer agent is potassium iodide.

Abstract: Color-stabilized nonionic surfactants which contain chemically bonded poly(alkylene oxide) groups with terminal hydroxyl groups, wherein the color stabilizer is from 0.1 to 5% by weight, based on surfactant, of one or more compounds of the formula ##STR1## where X is O, CH.sub.2, C.sub.2 H.sub.4 or C.sub.3 H.sub.6, Y is O or NH and Z is H, CH.sub.3 or CH.sub.2 OH.

Abstract: Perfluoropolyether compounds and mixtures thereof having the formula:A--O--(C.sub.3 F.sub.6 O).sub.P --(CF.sub.2 O).sub.Q --(C.sub.2 F.sub.4 O).sub.R --CF(Z)--CO--N(R)Arwherein the perfluoroalkyleneoxy groups are randomly distributed and A is a perfluoroalkyl group or a --CF(Z)--CO--N(R)Ar group; P, Q and R are zero but not simultaneously or numbers from 1 to 100, the sum of P, Q and R being 3 to 200; Z is a fluorine atom or a CF.sub.3 group; Ar is an aryl group; and R is hydrogen, alkyl, alkyl-aryl or an aryl group.These compounds are excellent stabilizers for perfluoropolyether fluids of the formula:X--O--(C.sub.3 F.sub.6 O).sub.P --(CF.sub.2 O).sub.q --(C.sub.2 F.sub.4 O).sub.r --Ywherein p, q and r are each zero or numbers from 1 to 100, the sum of p, q and r being 6 to 200, and X and Y are the same or different and are perfluoroalkyl groups having 1 to 3 carbon atoms.