Eastman-kodak Company

Eastman Chemical Company

Jerome L Stavinoha

Thomas Allen Puckette

Thomas James Devon

Gerald W Phillips

Jeffrey James Vanderbilt

Anthony W McCollum

John Robert Monnier

George L Oltean

Ginette Struck Tolleson

David Martin Hitch

Timothy Richard Nolen

Gregory O Nelson

Anthony W McColllum

John D Tolleson

Disclosed herein is an improved gas phase process for the selective epoxidation of non-allylic olefins wherein the epoxidation is carried out in the presence of certain inert, paraffin hydrocarbons. Such hydrocarbons possess higher heat capacities as compared to other materials, e.g., nitrogen, argon, methane and helium, typically used as inert diluents in olefin epoxidations. The disclosed process is particularly useful for the continuous manufacture of 3,4-epoxy-1-butene from 1,3-butadiene.

Gas phase process for the epoxidation of non-allylic olefins

Disclosed are bis-phosphine compounds having the general formula ##STR1## wherein: each of A.sup.1, A.sup.2, A.sup.3 and A.sup.4 is an arylene radical wherein (i) each phosphorus atom P is bonded to a ring carbon atom of A.sup.1 and A.sup.2 and to a ring carbon atom of A.sup.3 and A.sup.4, (ii) A.sup.1 and A.sup.2, and A.sup.3 and A.sup.4 are bonded to each other by ring carbon atoms and (iii) each of the residues ##STR2## constitutes a 5-membered ring; each of A.sup.5 and A.sup.6 is an arylene radical wherein A.sup.5 and A.sup.6 are bonded to each other and to residues R.sup.1 --C--R.sup.2 and R.sup.3 --C--R.sup.4 by ring carbon atoms and R.sup.1 --C--R.sup.2 and R.sup.3 --C--R.sup.4 are connected to each other through a chain of 4 carbon atoms; and

Hydroformylation process using novel phosphine-rhodium catalyst system

Disclosed are improved processes for the recovery of 3,4-epoxy-1-butene (EpB) from an epoxidation effluent comprising EpB, butadiene, oxygen and butane obtained by the selective epoxidation of butadiene with an oxygen-containing gas in the presence of a catalyst and an inert gas. EpB is separated from the effluent by means of an absorption process using liquid mixture of butadiene and butane as the absorbent material. The inclusion of butane in the epoxidation and recovery processes permits the use of lower pressures in the absorption of the EpB product.

Recovery of 3,4-epoxy-1-butene from 1,3,-butadiene oxidation effluents

Disclosed are processes for the manunfacture of 3,4-epoxy-1-butene (EpB) and, particularly, for the recovery of EpB from an epoxidation effluent comprising EpB, butadiene, oxygen and an inert gas obtained by the selective epoxidation of butadiene with an oxygen-containing gas in the presence of a catalyst and an inert gas. EpB is separated from the effluent by means of an absorption process using liquid butadiene as the absorbent material.

Recovery of 3,4-epoxy-1-butene from 1,3-butadiene oxidation effluents

A process is disclosed for preparing biaryl, bidentate ligands comprising:

Preparation of bidentate ligands

The hydroformylation of olefins with rhodium complex catalysts is described. The catalysts employed comprise a rhodium complex with at least one bidentate ligand having a specified structure, ##STR1## Hydroformylation reactions at relatively low temperatures and pressure and yet with high rates of reaction and high selectivity to aldehyde product are obtained by the practice of the present invention.

Low pressure rhodium catalyzed hydroformylation of olefins

Novel heat-curable compositions are obtained by combining a bis(2-hydroxyethyl)dicyclopentadiene containing polyester and an unsaturated polyester. These compositions can be cross-linked by heating at temperatures above 135.degree. C., and do not require cross-linking agents or radical initiators. The compositions of the present invention are useful as coatings and adhesives having superior qualities.

Heat-curable compositions comprising a mixture of bis(2-hydroxyethyl)

A novel ligand for use in hydroformylation reactions wherein at least one olefin having from 2 to 20 carbon atoms is contacted in a reaction zone at a temperature of from about 20.degree. C. to about 250.degree. C. and a pressure of from about 50 psig to about 800 psig with hydrogen, carbon monoxide, and a catalyst containing rhodium, the ligand having the formula ##STR1## wherein: n is 1-4;

Chelate ligands for low pressure hydroformylation catalyst and process

Novel esters and polyesters are prepared by reacting cyclopentadienylethanol, bis(2-hydroxyethyl)dicyclopentadiene, or mixtures of the two with monobasic acid esters and dibasic acid diesters. These esters and polyesters are characterized by a reversible cross-linking mechanism and have utility as superior coatings and adhesives. High molecular weight, cross-linked polymers are also prepared in the present invention by reacting cyclopentdienylethanol with a polyolefin wax having an ester, acid or anhydride functional group.

Cyclopentadienylethanol and bis(2-hydroxyethyl)dicyclopentadiene esters

Novel hydroxyethylnorbornene esters are disclosed which are prepared by reacting cyclopentadienylethanol with an acrylate ester. Novel polyesters are disclosed which are prepared by the self-polymerization of the hydroxyethylnorborane (HEN) esters. Novel polyesters are also obtained by reacting HEN compounds and a diol or other polyol in the presence of diacids or their esters or anhydrides. The polyesters of the present invention are useful as tackifying agents, adhesives, coatings, and for other purposes.

Hydroxyethylnorbornene compounds and a process for their preparation

The process for preparing a bidentate ligand comprising the steps,

Growing community of inventors

Longview, TX, United States of America

Jerome L Stavinoha