Velsicol Chemical Corporation

Other

Eastman Specialties Holdings Corporation

Bruce Edward Stanhope

William David Arendt

Jiamin Lang

Franz Josef Luxem

Bruce E Streeter

Thomas Joseph Bohnert

Mark Stephen Holt

Eric R Zimmermann

Eric R Zimmerman

Wesley Wayne McConnell

Monoesters derived from a dihydric alcohol and a carboxylic acid such as benzoic acid are secondary plasticizers for non-aqueous and solventless plastisols containing primary plasticizers that do not contain unreacted alkanol groups.

Plasticizer compositions for non-aqueous plastisols

The addition of at least 20 weight percent of at least one member of a specified class of monobenzoates to at least one member of a specified class of dibenzoates that freeze at 28&#xb0; C. or above results in a mixture that is both a liquid at this temperature and an unexpectedly effective plasticizer for many organic polymers. The plasticized polymer compositions are useful in various end use applications including adhesives and caulks.

Liquid benzoate ester compositions and aqueous polymer compositions containing same as plasticizers

Mixtures of esters produced by reacting a mixture of aromatic and aliphatic monocarboxylic acids with a diol containing from 2 to 12 carbon atoms are effective plasticizers for plastisols containing dispersion grade polymers of vinyl chloride. The freezing point of the present ester mixtures and their efficacy as plasticizers can be varied by adjusting the type and relative concentration of the aliphatic acid used to prepare the plasticizer. The ester mixtures can also be used as plasticizers for other organic polymers.

Plastisol compositions comprising vinyl chloride polymers and mixtures of aromatic and aliphatic esters of diols as plasticizers

A portion of the repeating units in polyesters useful as plasticizers for rigid organic polymers are derived from diethylene glycol and at least one dicarboxylic acid. The percentage of these repeating units that can be present in polyesters that are compatible with the organic polymer into which they are incorporated is inversely proportional to the weight average molecular weight of the polyester.

Polyester plasticizers for halogen-containing polymers

Compositions comprising at least one acrylic, vinyl acetate or epoxide polymer or copolymer as a film-forming ingredient and an ester of benzoic acid wherein the alcohol portion of the ester is alkyl and contains eight carbon atoms exhibit unexpected improvements in film-forming and applied film properties. In preferred compositions this alcohol portion is 2-ethylhexyl. Additionally, the preferred benzoic acid ester frequently interacts synergistically with benzoic acid esters derived from oligomeric ethylene glycols.

Film forming compositions containing benzoic acid esters of 8-carbon alcohols as additives

The addition of at least about 30 weight percent of diethylene glycol (DEG) monobenzoate or dipropylene glycol (DPG) monobenzoate to diethylene glycol (DEG) dibenzoate, which is a solid at 28&deg; C., results in a mixture that is unexpectedly a liquid at this temperature. The resultant mixtures are effective plasticizers for aqueous polymer compositions, including adhesives and caulks.

The present invention provides a continuous series of at least 3 esterification reactions, each of which yields highly pure esters derived from benzoic and at least one alcohol selected from monohydric alcohols containing from 6 to 12 carbon atoms and dihydric alcohols containing from 2 to 8 carbon atoms. At least a portion of the esterification catalyst and high boiling impurities remaining following distillation of the desired ester are used in the reaction mixture for the next reaction of the series.

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Grayslake, IL, United States of America

Bruce Edward Stanhope