公开(公告)号：US3171829A

公开(公告)日：1965-03-02

申请号：US11851561

申请日：1961-06-21

Applicant: ALLIED CHEM

Inventor： WIESNER ALBERT H ,  SNIDER ORVILL E ,  APOSTLE BASIL G

IPC: C08G69/16

CPC classification number: C08G69/16

公开(公告)号：US3317519A

公开(公告)日：1967-05-02

申请号：US45785365

申请日：1965-05-21

Applicant: ALLIED CHEM

Inventor： LAZARUS STANLEY D ,  TWILLEY IAN C ,  SNIDER ORVILL E

IPC: C07C51/09 ,  C07D201/12

CPC classification number: C07D201/12 ,  C07C51/09 ,  Y10S525/938

公开(公告)号：US3090773A

公开(公告)日：1963-05-21

申请号：US71156658

申请日：1958-01-28

Applicant: ALLIED CHEM

Inventor： PAPERO JR PATRICK V ,  SNIDER ORVILL E ,  DUGGAN RAYMOND J

IPC: C08G69/16 ,  D01F6/60

CPC classification number: C08G69/16 ,  D01F6/60

公开(公告)号：US3679368A

公开(公告)日：1972-07-25

申请号：US3679368D

申请日：1969-10-20

Applicant: ALLIED CHEM

Inventor： BALINT LASZLO J ,  ROTH DAVID W H JR ,  SNIDER ORVILL E

IPC: B01J19/18 ,  C08F2/00 ,  C08G18/08 ,  C08G63/78 ,  C08G69/04 ,  B01D1/22 ,  C08F1/98

CPC classification number: B01J19/1862 ,  B01J2219/00159 ,  B01J2219/00162 ,  B01J2219/00168 ,  C08G18/0895 ,  C08G63/785 ,  C08G69/04 ,  Y10S159/10 ,  Y10S159/36

Abstract: APPARATUS FOR CONTINUOUS ESTERIFICATION AND POLYCONDENSATION COMPRISING A RECTIFICATION UNIT HAVING A FEED OUTLET THEREFROM TO A MULTIPLE ZONE SUBSTANTIAL VERTICAL ESTERIFICATION MEANS CONTAINING AGITATORS AND WEIRS (WHEREIN SAID AGITATORS ARE CONICAL IN SHAPE) AND INTERPOSITIONED WITH RESPECT TO SAID WEIRS, AND DEVOLATILIZATION MEANS LOCATED BETWEEN SAID MULTIPLE ZONE ESTERIFICATION MEANS AND A PLUG FLOW MEANS.

公开(公告)号：US3141036A

公开(公告)日：1964-07-14

申请号：US12714061

申请日：1961-07-27

Applicant: ALLIED CHEM

Inventor： WINSTROM LEON O ,  SNIDER ORVILL E

IPC: C07C51/36

CPC classification number: C07C51/36 ,  C07C61/08

公开(公告)号：US3544525A

公开(公告)日：1970-12-01

申请号：US3544525D

申请日：1968-03-26

Applicant: ALLIED CHEM

Inventor： BALINT LASZLO J ,  ABOS RAMON LUIS ,  SNIDER ORVILL E

IPC: B29B9/06 ,  B29B13/06 ,  C08G63/80 ,  C08G63/88 ,  C08J3/12 ,  C08G17/003

CPC classification number: C08J3/12 ,  B29B9/06 ,  B29B13/065 ,  B29K2067/00 ,  C08G63/80 ,  C08G63/88 ,  C08J2367/02

Abstract: 1,257,967. Solid state polymerisation. SNIA VISCOSA SOC: NAZIONALE INDUSTRIA APPLICAZIONI VISCOSA S.p.A. 4 Feb., 1969 [26 March, 1968], No. 5907/69. Heading B1X. [Also in Divisions C3 and F4] Crystallised polyester pellets are simultaneously dried and solid-state polymerised by passing them continuously through a vessel 47 in countercurrent to a heated inert gas. Polyester which has been either pelletised and crystallised in a fluidised bed enters at the top of vessel 47 and falls as a bed under gravity, the pellets being removed at the base of the vessel by discharge rotary valve 58. The inert gas is first heated to a temperature of from 160 to 212‹C in heater 43 and then enters vessel 47 via plenum chamber 46, leaving via chamber 51. The gas velocity is kept below fluidization rates (below 2.1 ft/sec.). A level controller 50 is provided for controlling the residence time of the polymer in the vessel. The vessel should preferably have a height of at least six times its diameter and a cross-sectional area of at least twice that of the fluidised crystalliser used in the preceding step. Specified dimensions for the vessel are given in Examples 7-10.

公开(公告)号：US3406167A

公开(公告)日：1968-10-15

申请号：US50706065

申请日：1965-11-09

Applicant: ALLIED CHEM

Inventor： CHAO-SHING CHENG ,  HECKER RICHARD C ,  APOSTLE BASIL G ,  SNIDER ORVILL E

IPC: C07D201/16

CPC classification number: C07D201/16

公开(公告)号：US3182055A

公开(公告)日：1965-05-04

申请号：US25934663

申请日：1963-02-18

Applicant: ALLIED CHEM

Inventor： BONFIELD JOHN H ,  HECKER RICHARD C ,  SNIDER ORVILL E ,  APOSTLE BASIL G

IPC: C07D201/12

CPC classification number: C07D201/12

公开(公告)号：US3602014A

公开(公告)日：1971-08-31

申请号：US3602014D

申请日：1968-05-31

Applicant: ALLIED CHEM

Inventor： MACDONALD JAMES JR ,  BALLENTINE THOMAS F ,  SNIDER ORVILL E

IPC: D01D5/253 ,  D04B1/24 ,  D04B1/16

CPC classification number: D01D5/253 ,  D02G3/22 ,  D04B1/24 ,  D10B2331/02 ,  D10B2501/021

Abstract: Textile garments such as ladies'' hosiery and panty hose have improved stretch characteristics when knitted from bifilament yarns possessing a figure-eight-type cross section comprised of two prominent lobes connected by concave side portions of uniform symmetry. The particular geometry of these bifilaments causes preferential alignment at yarn crossing points whereby a random amount of twist is imparted to a knitted construction and entrapped between loop sections forming the network of the garments to enhance their stretch characteristics as compared to garments prepared from yarns having differently shaped cross sections.

公开(公告)号：US3294756A

公开(公告)日：1966-12-27

申请号：US27727763

申请日：1963-05-01

Applicant: ALLIED CHEM

Inventor： RUSSELL WILLIAM N ,  WIESNER ALBERT H ,  SNIDER ORVILL E

IPC: C08G69/16

CPC classification number: C08G69/16