公开(公告)号：US20170306054A1

公开(公告)日：2017-10-26

申请号：US15482910

申请日：2017-04-10

Applicant: Eastman Chemical Company

Inventor： Matthew Allen Boone ,  Christopher Harlan Burk ,  Peter Borden Mackenzie ,  Jennifer A. Fish ,  Eduardo Gallas Cervo ,  Elaine Beatrice Mackenzie ,  Robert Joseph Maleski ,  Wesley McConnell ,  David William Norman ,  Tabatha Stearns ,  Bin Wang

IPC: C08B3/16

Abstract: Regioselectively substituted cellulose esters having a plurality of pivaloyl substituents and a plurality of aryl-acyl substituents are disclosed along with methods for making the same. Such cellulose esters may be suitable for use in films, such as +A optical films, and/or +C optical films. Optical films prepared employing such cellulose esters have a variety of commercial applications, such as, for example, as compensation films in liquid crystal displays and/or waveplates in creating circular polarized light used in 3-D technology.

公开(公告)号：US09714206B2

公开(公告)日：2017-07-25

申请号：US14585915

申请日：2014-12-30

Applicant: Eastman Chemical Company

Inventor： Andrew James Vetter ,  Jonathan Michael Penney ,  David William Norman

IPC: C07C45/00 ,  C07C45/49 ,  B01J31/24 ,  C07C29/16 ,  C07C45/50 ,  C07C51/12

CPC classification number: C07C45/49 ,  B01J31/2409 ,  B01J2231/34 ,  B01J2531/845 ,  C07C29/16 ,  C07C45/50 ,  C07C51/12 ,  C07C47/06 ,  C07C53/08 ,  C07C31/08

Abstract: Disclosed is a process for the reductive carbonylation of a low molecular weight alcohol to produce the homologous aldehyde and/or alcohol. The process includes conducting the reaction to produce the aldehyde in the presence of a catalyst complex composed of cobalt, an onium cation and iodide in a ratio of 1:2:4 with a phosphine ligand. A ruthenium co-catalyst is used in the production of the homologous alcohol. The reductive carbonylation reaction does not require an additional iodide promoter and produces a crude reductive carbonylation product substantially free of methyl iodide.

公开(公告)号：US20150080628A1

公开(公告)日：2015-03-19

申请号：US14031697

申请日：2013-09-19

Applicant: Eastman Chemical Company

Inventor： David William Norman ,  Joy Lynn Laningham

IPC: C07C2/34

CPC classification number: C07C2/34 ,  B01J31/143 ,  B01J31/2404 ,  B01J31/2447 ,  B01J2231/20 ,  B01J2531/847

Abstract: Disclosed are novel catalyst solutions comprising an organic complex of nickel, an alkyl aluminum compound, a solvent, and a phosphine compound, that are useful for the preparation of butenes, pentenes and hexenes by the co-dimerization or cross-dimerization of ethylene and propylene. Also disclosed are processes for the dimerization of ethylene and propylene that utilize these catalyst solutions. The catalyst systems described herein demonstrate that, depending on the choice of phosphine compound used with the catalytically active nickel, it is indeed possible to lower the concentration of hexene olefins relative to butenes and pentenes, even in the presence of excess propylene. The selectivity to the linear or branched pentene product can also be controlled by the selection of the phosphine compound. The catalyst solutions may be used with mixtures of olefins.

Abstract translation: 公开了包含镍，烷基铝化合物，溶剂和膦化合物的有机络合物的新型催化剂溶液，其可用于通过乙烯和丙烯的共二聚或交叉二聚制备丁烯，戊烯和己烯 。 还公开了利用这些催化剂溶液的乙烯和丙烯二聚的方法。 本文描述的催化剂体系证明，根据与催化活性镍一起使用的膦化合物的选择，即使在过量丙烯存在下，确实可以降低己烯烯烃相对于丁烯和戊烯的浓度。 对于直链或支链戊烯产物的选择性也可以通过选择膦化合物来控制。 催化剂溶液可与烯烃混合物一起使用。

公开(公告)号：US20150025272A1

公开(公告)日：2015-01-22

申请号：US14509517

申请日：2014-10-08

Applicant: Eastman Chemical Company

Inventor： David William Norman ,  Greg Alan King

IPC: B01J27/199 ,  C07C51/353

CPC classification number: B01J27/199 ,  B01J21/063 ,  B01J23/002 ,  B01J27/198 ,  B01J35/002 ,  B01J37/03 ,  B01J37/086 ,  B01J2523/00 ,  B01J2523/13 ,  B01J2523/47 ,  B01J2523/51 ,  B01J2523/55 ,  C07C51/353 ,  C07C57/04

Abstract: The invention relates to a catalyst composition comprising a mixed oxide of vanadium, titanium, and phosphorus modified with alkali metal. The titanium component is derived from a water-soluble, redox-active organo-titanium compound. The catalyst composition is highly effective at facilitating the vapor-phase condensation of formaldehyde with acetic acid to generate acrylic acid, particularly using an industrially relevant aqueous liquid feed.

Abstract translation: 本发明涉及包含用碱金属改性的钒，钛和磷的混合氧化物的催化剂组合物。 钛组分衍生自水溶性，氧化还原活性有机钛化合物。 催化剂组合物在促进甲醛与乙酸的气相缩合以产生丙烯酸方面是非常有效的，特别是使用工业上相关的水性液体进料。

公开(公告)号：US20140088326A1

公开(公告)日：2014-03-27

申请号：US13624035

申请日：2012-09-21

Applicant: EASTMAN CHEMICAL COMPANY

Inventor： David William Norman ,  Damon Ray Billodeaux ,  Melissa Dawn Page

IPC: C07C29/141 ,  C07C45/45

CPC classification number: C07C29/175 ,  C07C45/002 ,  C07C45/45 ,  C07C45/74 ,  C07C51/02 ,  C07C47/06 ,  C07C47/02 ,  C07C47/21 ,  C07C31/125

Abstract: Disclosed is a process for the production of higher aldehydes from lower alcohols using a two-stage vapor phase heterogeneous catalyst system. Ethanol feeds afford aldehydes such as butyraldehyde and crotonaldehyde while butanol feeds yield 2-ethylhexanal and 2-ethylhexenal. Higher product selectivities are obtained when the alcohol is first dehydrogenated in the upper catalyst stage followed by aldol condensation of the resulting lower aldehyde to a higher aldehyde.

Abstract translation: 公开了一种使用两级气相多相催化剂体系从低级醇生产较高级醛的方法。 乙醇进料得到醛类如丁醛和巴豆醛，而丁醇进料产生2-乙基己醛和2-乙基己烯醛。 当醇在上部催化剂阶段首先被脱氢，然后将所得到的低级醛醛醛缩合成高级醛时，获得较高的产物选择性。