Arco Chemical Technology, L.p.

Lyondell Chemical Technology, L.p.

Frank J Liotta, Jr

Haven S Kesling, Jr

Steven A Schwartz

Edward T Shawl

Jeffrey A Klang

Daniel B Pourreau

Mahmoud K Faraj

Lawrence J Karas

Michael J Cannarsa

Robert M Arrell

Scott E Smyth

Sallie J Lee

John A Sofranko

Rangasamy Pitchai

David C Dehm

Mark A Liepa

Paul E Galick

Jeffrey M McFarland

Edward A Barsa

A drycleaning method is disclosed. The method uses a composition comprising 30 to 90 wt. % of a dipropylene glycol C-Calkyl ether, 5 to 65 wt. % of one or more C-Chydrocarbons, and 1 to 10 wt. % of water. The method combines acceptable stain removal with faster-than-expected evaporability, particularly at the elevated temperatures used in commercial drycleaning.

Drycleaning method

A gypsum composition comprising water, stucco, clay, an amine compound, a polyoxyalkylene, and a comb-branched copolymer is disclosed. The gypsum composition has improved fluidity. A method for preparing the gypsum composition is also disclosed. The method comprises mixing the components to form a slurry, casting the slurry into a product, and drying the product.

Gypsum composition

A comb-branched polymer is disclosed. The polymer comprises recurring units of an unsaturated carboxylic monomer, an oxypropylene-rich poly(oxyethylene-oxypropylene) macromonomer and an oxyethylene-rich poly(oxyethylene-oxypropylene) macromonomer. The comb-branched polymer can be used as a water reducing agent in cement. It gives significantly lower air entrainment in cement admixture.

Preparation of comb-branched polymers

A gypsum composition containing a sulfonate-containing comb-branched copolymer is disclosed. The sulfonate-containing comb-branched copolymer comprises recurring units of a polyether macromonomer, an acrylic monomer, and a sulfonate monomer. The sulfonate-containing comb-branched copolymer not only increases the fluidity of gypsum slurry but also has reduced retardation on the gypsum setting.

Preparation of gypsum compositions

A gypsum composition suitable for use in the manufacture of gypsum products is provided. The gypsum composition includes gypsum, water, and a solid dispersant comprising a supported acrylic/polyether comb-branched copolymer. A method of making a gypsum composition is also provided. The method includes mixing together, in any combination, gypsum, water, and a solid dispersant comprising a supported acrylic/polyether comb-branched copolymer.

Solid supported comb-branched copolymers as an additive for gypsum compositions

Cementitious compositions are prepared using a dry, flowable admixture containing an ester of carbonic acid such as propylene carbonate and a solid, particulate support which is non-reactive toward the ester such as silica fume. Such admixtures accelerate the set and increase the thixotropy of unhardened mixtures containing hydraulic cement and water, yet can be readily handled and stored in stable form until ready to be used.

Supported carbonic acid esters useful as set accelerators and thixotropic agents in cement

The present invention relates to a low sulfur diesel fuel which contains a propylene, butylene or ethylene glycol monoalkyl ether or polyol in amount sufficient to reduce particulate matter emissions.

Diesel fuel

The present invention provides a process for the production of dialkyl peroxides by reaction of an alcohol and/or an olefin with an organic hydroperoxide, using a solid acidic zeolite catalyst.

Preparation of dialkyl peroxides

Plasticized polyvinyl acetal resins based on 4-hydroxybutanal are disclosed. Laminar structures that include the resins, a process for making the resins, and a process for making an internally plasticized polyvinyl acetal resin by esterification, are also revealed.

Polyvinyl acetal resins based on hydroxyaldehydes and use of the resins

The present invention provides a process the production of dialkyl peroxides by reaction of an alcohol and/or an olefin with an organic hydroperoxide, using an acidic resin catalyst, especially a highly cross-linked hydrophobic acidic resin catalyst.

The present invention relates to a diesel fuel which contains a synergistic combination of an organic peroxidic additive such as ditertiary butyl peroxide in combination with a propylene or butylene glycol monoalkyl ether or polyol, the combination of additives providing for reduced fuel emissions and improved fuel economy.

An integrate process is provided for the production of ditertiary butyl peroxide wherein isobutane oxidate containing tertiary butyl alcohol and tertiary butyl hydroperoxide is reacted in the presence of an aqueous acidic catalyst, the reaction mixture is phase separated, the aqueous catalyst is recovered and recycled, and the product peroxide is recovered from the organic phase by water extraction.

Integrated process for the production of ditertiary butyl peroxide

The present invention relates to a low sulfur diesel fuel which contains a dialkyl and a trialkyl derivative of glycerol in amount sufficient to reduce particulate matter emissions.

Growing community of inventors

Collegeville, PA, United States of America

Frank J Liotta, Jr