Author
Michael E. Brennan
Other affiliations: ARCO
Bio: Michael E. Brennan is an academic researcher from Texaco. The author has contributed to research in topics: Polyurethane & Polyol. The author has an hindex of 15, co-authored 47 publications receiving 609 citations. Previous affiliations of Michael E. Brennan include ARCO.
Papers
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Patent•
17 May 1976TL;DR: In this article, an improved process for selectively preparing a predominantly noncyclic polyalkylene polyamine compound is disclosed wherein an alkyleneamine compound was contacted with an alkanolamine compound in the presence of a catalytically effective amount of a phosphorus-containing substance at a temperature of from about 250° to about 350° C under a pressure sufficient to maintain the mixture essentially in liquid phase.
Abstract: An improved process for selectively preparing a predominantly noncyclic polyalkylene polyamine compound is disclosed wherein an alkyleneamine compound is contacted with an alkanolamine compound in the presence of a catalytically effective amount of a phosphorus-containing substance at a temperature of from about 250° to about 350° C under a pressure sufficient to maintain the mixture essentially in liquid phase and the polyalkylene polyamine is then recovered from the resultant reaction mixture. In a preferred embodiment ethylenediamine is contacted with monoethanolamine to produce a predominantly linear polyethylene polyamine product with very low yields of heterocyclic amine materials. The desired polyethylene polyamines produced can be directly recovered from the reaction products by known purification procedures.
72 citations
Patent•
18 Nov 1983TL;DR: In this article, Terephthalic esters are made to remain in a liquid form by reacting recycled or scrap polyethylene terephthalate (PET) with diethylene glycol and one or more oxyalkylene glyols.
Abstract: Terephthalic esters may be made to remain in a liquid form by reacting recycled or scrap polyethylene terephthalate (PET) with diethylene glycol and one or more oxyalkylene glycols and stripping out some of the ethylene glycol present. The mole ratio of glycols to scrap PET should also be greater than 1.2:1. This process keeps any diesters from separating out of the solution as solids. These liquid terephthalic esters are useful as polyol extenders in rigid polyurethane foams and as the sole polyol component in polyisocyanurate foams.
41 citations
Patent•
26 Sep 1983TL;DR: A mixture of aromatic polyester polyols useful in preparing rigid foams is described in this article, where the polyols are made by first reacting recycled polyethylene terephthalate (PET) scrap with an alkylene glycol to form a reaction product which is then reacted with a propylene oxide.
Abstract: A mixture of aromatic polyester polyols useful in preparing rigid foams is described. The polyols are made by first reacting recycled polyethylene terephthalate (PET) scrap with an alkylene glycol to form a reaction product which is then reacted with an alkylene oxide, such as propylene oxide. The resultant mixture of aromatic polyester polyols is a homogeneous liquid which does not precipitate solids upon standing, as do some prior art PET-derived polyols.
29 citations
TL;DR: In this paper, a mixture of aromatic polyols containing ester functionalities suitable for use as polyol extenders in rigid foams prepared by reacting dibasic acid residues with an alkylene glycol residue, the reaction product of which is reacted with recycled polyethylene terephthalate is described.
28 citations
Patent•
05 Dec 1980TL;DR: A detergent additive represented by the formula: R--[O--CH.sub.2] as mentioned in this paper, where R is a hydrocarbyl radical having from 8 to 18 carbon atoms and y is about 2 to 6.
Abstract: A detergent additive represented by the formula: R--[O--CH.sub.2 --CH(CH.sub.3)].sub.y --NH--(CH.sub.2).sub.3 --NH.sub.2 in which R is a hydrocarbyl radical having from 8 to 18 carbon atoms and y is about 2 to 6, and a gasoline motor fuel composition containing same.
27 citations
Cited by
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TL;DR: A review of the literature pertaining to catalysis by cation exchange resins is presented in this paper, where approaches for the interpretation of kinetic data and modeling have been reviewed, and the type of reactor to be employed for carrying out ion exchange resin catalyzed reactions has been discussed.
378 citations
Patent•
14 Apr 1999TL;DR: In this paper, a process for increasing the molecular weight of polyesters, polyester copolymers or polyester blends is described, which comprises heating a polyester blended with a tetracarboxylic acid dianhydride and a sterically hindered hydroxyphenylalkylphosphonic acid ester or half-ester to above the melting point of the polyester.
Abstract: A process is disclosed for increasing the molecular weight of polyesters, polyester copolymers or polyester blends, which comprises heating a polyester blended with a tetracarboxylic acid dianhydride and a sterically hindered hydroxyphenylalkylphosphonic acid ester or half-ester to above the melting point (glass transition temperature) of the polyester.
125 citations
Patent•
27 Jan 1998
TL;DR: In this article, the synthesis from PET (virgin, recycled, post consumer, or precursor raw materials) of novel water dispersible or water emulsifiable polyester resins having improved hydrophobicity or non-polar characteristics is described.
Abstract: This invention relates to the synthesis from PET (virgin, recycled, post consumer, or precursor raw materials) of novel water dispersible or water emulsifiable polyester resins having improved hydrophobicity or non-polar characteristics. These characteristics give the applied film of these dispersions or emulsions much improved water repellency while at the same time retaining their redispersible or reemulsifiable properties. Such resins can be used for many applications in the paper, textile, coatings, paint, construction, and other industries.
104 citations
Patent•
11 Jun 2010
TL;DR: In this paper, the authors describe processes for the chemocatalytic conversion of a glucose source to an adipic acid product via glucaric acid or derivatives thereof, including catalytic oxidation and hydrodeoxygenation.
Abstract: The present invention generally relates to processes for the chemocatalytic conversion of a glucose source to an adipic acid product. The present invention includes processes for the conversion of glucose to an adipic acid product via glucaric acid or derivatives thereof. The present invention also includes processes comprising catalytic oxidation of glucose to glucaric acid or derivative thereof and processes comprising the catalytic hydrodeoxygenation of glucaric acid or derivatives thereof to an adipic acid product. The present invention also includes products produced from adipic acid product and processes for the production thereof from such adipic acid product.
102 citations
Patent•
10 Mar 1986TL;DR: In this article, the acid catalyzed condensation of the amine reactant with the hydroxy reactant was used to obtain improved additives/detergents for lubricant and fuel compositions by condensing a hydroxyalkyl or hydroxyaryl compound with an amine compound.
Abstract: Improved additives/detergents for lubricant and fuel compositions are obtained by condensing a hydroxyalkyl or hydroxyaryl compound with an amine compound. The condensates according to the present invention are produced by the acid catalyzed condensation of the amine reactant with the hydroxy reactant.
85 citations