公开(公告)号：EP1278686A1

公开(公告)日：2003-01-29

申请号：EP01933389.7

申请日：2001-05-03

Applicant: EASTMAN CHEMICAL COMPANY

Inventor： DONELSON, Michael, E. ,  COPPARI, Lawrence, A. ,  WEINHOLD, Stephen ,  SHELBY, Marcus, D. ,  DUNCAN, Steven, S. ,  ESTEP, Robert, N.

IPC: B65D81/38 ,  B65D23/08 ,  B65D23/00

CPC classification number: B65D23/085 ,  B65D23/001 ,  B65D23/0814 ,  B65D81/18 ,  B65D81/3846 ,  B65D81/3881 ,  B65D81/3883 ,  B65D81/3886 ,  Y02W30/807

Abstract: A fluid container (10) with a reflective external layer (14) over greater than 50 % of a container body wall that reduces heat gain through the wall. The reflectivity is greater than 70 %. The container body may be received by a passive base cup (30) having an outer layer (44) that also reflects radiation to further increase the thermal resistance of the container. The base cup may serve to actively cool the fluid in the container, by including a compartment (66) with a fluid (68) that can be frozen. A foamed layer (24) can be used under or over the reflective layer, on the container body and/or the cup, to also reduce heat gain. The reflective layer materials have a density different than the container body/cup materials to facilitate recycling.

公开(公告)号：EP1181140A1

公开(公告)日：2002-02-27

申请号：EP00936303.7

申请日：2000-05-25

Applicant: EASTMAN CHEMICAL COMPANY

Inventor： SHELBY, Marcus, David ,  DONELSON, Michael, Eugene ,  WEINHOLD, Stephen ,  HALL, Harry, Probert

IPC: B29B9/06

CPC classification number: B29B9/06 ,  B29C47/00 ,  B29C47/0011 ,  B29C47/0021 ,  B29C55/00 ,  B29C2071/022 ,  B29C2793/009 ,  B29K2067/00 ,  B29K2995/0041

Abstract: The present invention relates to a process for introducing strain-induced crystallization to polyesters. Specifically, amorphous polymer from the melt phase reactor (1) is first extruded through a traditional strand die. However, instead of going directly into a pelletizer/cutter (7), it is stretched uniaxially at a temperature only slightly higher than Tg. The chain alignment resulting from stretching makes crystallization occur at a considerably higher rate than with traditional thermal crystallization. After this stretching process, the strand is annealed and fed to the pelletizer and chopped. The process of the present invention is advantageous for crystallizing polymers having slow rate of thermal crystallization half time from the glass. Optically clear polymers having at least about 15 % crystallinity and a single melting point endotherm are produced.

公开(公告)号：EP2235088A1

公开(公告)日：2010-10-06

申请号：EP09703813.7

申请日：2009-01-08

Applicant: Eastman Chemical Company

Inventor： WHITE, Alan, Wayne ,  QUILLEN, Donna, Rice ,  WEINHOLD, Stephen ,  PEARCY, Barry, Glen ,  JENKINS, Jason, Christopher

IPC: C08G63/84 ,  C08K5/00 ,  C08K5/13

CPC classification number: C08G63/84 ,  C08K5/13 ,  Y10T428/1352 ,  C08L67/02

Abstract: Articles comprising at least one polyester polymer melt phase product comprising at least one polyethylene terephthalate polyester; at least one metal compound chosen from alkali metal-aluminum compounds; and from 5 ppm to 1000 ppm of at least one phenolic stabilizer. Also provided is a melt phase process for making a polyester polymer melt phase product comprising: forming a slurry comprising at least one glycol chosen from ethylene glycol and derivatives of ethylene glycol and at least one acid chosen from terephthalic acid and derivatives of terephthalic acid; adding 5 ppm to 1000 ppm of at least one phenolic stabilizer; and reacting said at least one glycol and said at least one acid in the presence of at least one catalyst chosen from alkali metal- aluminum catalysts.

公开(公告)号：EP2152805A2

公开(公告)日：2010-02-17

申请号：EP08767824.9

申请日：2008-05-20

Applicant: EASTMAN CHEMICAL COMPANY

Inventor： COLHOUN, Frederick, Leslie ,  STEWART, Mark, Edward ,  WEINHOLD, Stephen ,  PETERS, Richard, Dalton ,  MARTIN, Roger, Lee

IPC: C08L67/02

CPC classification number: C08L67/02 ,  B29C51/002 ,  B29C51/10 ,  B29K2067/00 ,  B29K2995/0041 ,  C08J5/18 ,  C08J2367/02 ,  C08K3/04 ,  C08K3/36 ,  C08L23/06 ,  C08L23/08 ,  C08L77/00 ,  Y10T428/1397 ,  C08L2666/02 ,  C08L2666/04

Abstract: Polymer blends suitable for packaging are disclosed that include one or more impact modifiers; and one or more polyethylene terephthalate homopolymers or copolymers obtained by a melt phase polymerization using a catalyst system comprising aluminum atoms in an amount, for example, from about 3 ppm to about 60 ppm and one or more alkaline earth metal atoms, alkali metal atoms, or alkali compound residues in an amount, for example, from about 1 ppm to about 25 ppm, in each case based on the weight of the one or more polyethylene terephthalate homopolymers or copolymers The polymer blends disclosed exhibit improved low temperature toughness compared with blends made using polymers prepared with conventional catalyst systems.

公开(公告)号：EP1784439A2

公开(公告)日：2007-05-16

申请号：EP05791752.8

申请日：2005-08-29

Applicant: EASTMAN CHEMICAL COMPANY

Inventor： WEINHOLD, Stephen ,  COLHOUN, Frederick, Leslie ,  EKART, Michael, Paul ,  GAMBLE, Benjamin, Bradford

IPC: C08G63/02 ,  C08J3/00 ,  C08G63/16 ,  B29D22/04 ,  C08F6/00

CPC classification number: C08G63/88 ,  Y10T428/1334 ,  Y10T428/1355

Abstract: Spheroidal polyester polymer particles, as well as preforms and stretch blow molded bottles made from the spheroidal particles, are provided which have: A) an lt.V. of at least 0.72 dL/g, and either B) at least two melting peaks (on a DSC first heating scan), wherein one of said at least two melting peaks is a low peak melting point having a peak temperature within a range of 140 °C to 220 °C and having a melting endotherm area of at least the absolute value of 1 J/g, or C) a low degree of crystallinity within a range of at least 20% and a maximum degree of crystallinity Tcmax defined by the equation: Tcmax = 50% - CA - OH where CA is the total mole % of all carboxylic acid residues other than terephthalic acid residues, based on 100 mole % of carboxylic acid residues in the polyester polymer, and OH is the total mole % of hydroxyl functional compound residues other than ethylene glycol residues, based on 100 mole % of the hydroxyl functional compounds residues; or both B) and C); and optionally but: preferably D) 10 ppm or less of residual acetaldehyde.

公开(公告)号：EP0968243A1

公开(公告)日：2000-01-05

申请号：EP98911871.6

申请日：1998-03-19

Applicant: EASTMAN CHEMICAL COMPANY

Inventor： TREECE, Lanney, Calvin ,  OLSEN, Eric, Gray ,  SHELBY, Marcus, David ,  CARROLL, Max, Lamar, Jr. ,  EKART, Michael, Paul ,  WEINHOLD, Stephen

IPC: C08G63/88

CPC classification number: B29C47/367 ,  B29B17/0005 ,  B29C45/1816 ,  B29C45/63 ,  B29C47/0004 ,  B29C47/0014 ,  B29C47/0019 ,  B29C47/364 ,  B29C47/368 ,  B29C47/38 ,  B29C67/246 ,  B29C2045/1883 ,  B29C2045/545 ,  B29K2067/00 ,  B29K2105/0002 ,  C08G63/78 ,  C08G63/785 ,  Y02W30/62

Abstract: An apparatus and a method for molding of polyester articles having low acetaldehyde content directly from a melt without intermediate solidification of the molten polyester. A melt to mold process is used wherein an acetaldehyde stripping agent is mixed into a polyester melt before devolatilization in a flash tank. The devolatilized polyester is pumped out of the flash tank and injected into a mold, thus forming a shaped article. The apparatus may include one or more flash tanks in one devolatilization line, or multiple devolatilization lines may be used stemming from one main polymerization reactor. The final shaped article should contain less than 10 ppm of acetaldehyde.