公开(公告)号：US2641600A

公开(公告)日：1953-06-09

申请号：US19848250

申请日：1950-11-30

Applicant: STANDARD OIL CO

Inventor： HARBAN ARTHUR A ,  JOHNSON CARL E

IPC: C07D307/36

CPC classification number: C07D307/36

公开(公告)号：US2667496A

公开(公告)日：1954-01-26

申请号：US13616449

申请日：1949-12-30

Applicant: STANDARD OIL CO

Inventor： HARBAN ARTHUR A ,  JOHNSON CARL E

IPC: C07D333/08

CPC classification number: C07D333/08

公开(公告)号：US2522618A

公开(公告)日：1950-09-19

申请号：US11874549

申请日：1949-09-30

Applicant: STANDARD OIL CO

Inventor： JOHNSON CARL E ,  HARBAN ARTHUR A

IPC: C07C7/10 ,  C10G21/22

CPC classification number: C10G21/22 ,  C07C7/10 ,  C07C15/00

公开(公告)号：US2522619A

公开(公告)日：1950-09-19

申请号：US11874649

申请日：1949-09-30

Applicant: STANDARD OIL CO

Inventor： HARBAN ARTHUR A ,  JOHNSON CARL E

IPC: C10G21/22

CPC classification number: C07C45/80 ,  C07C29/86 ,  C10G21/22 ,  C07C49/04 ,  C07C31/125

公开(公告)号：US2814070A

公开(公告)日：1957-11-26

申请号：US50622455

申请日：1955-05-05

Applicant: STANDARD OIL CO

Inventor： BULKLEY WILLIAM L ,  HARBAN ARTHUR A ,  KREBS JOHN R ,  RYANT JR CHARLES J

IPC: B29C47/54 ,  B29C47/80

CPC classification number: B29C47/54 ,  B29C47/0016 ,  B29C47/0021 ,  B29C47/0023 ,  B29C47/822 ,  B29C47/862

公开(公告)号：US2813089A

公开(公告)日：1957-11-12

申请号：US52353655

申请日：1955-07-21

Applicant: STANDARD OIL CO

Inventor： TWADDLE WARREN W ,  HARBAN ARTHUR A ,  ARNOLD VERNON W

IPC: C08F12/08

CPC classification number: C08F12/08 ,  C08F2/06

公开(公告)号：CA607938A

公开(公告)日：1960-11-01

申请号：CA607938D

Applicant: STANDARD OIL CO

Inventor： TWADDLE WARREN W ,  ARNOLD VERNON W ,  HARBAN ARTHUR A

公开(公告)号：GB842665A

公开(公告)日：1960-07-27

申请号：GB3378157

申请日：1957-10-29

Applicant: STANDARD OIL CO

Inventor： TWADDLE WARREN W ,  HARBAN ARTHUR A ,  ARNOLD VERNON W

IPC: C08F12/08

Abstract: Polystyrene is made by polymerizing a prepared solution of styrene in an inert hydrocarbon liquid e.g. xylene, of boiling point close to that of styrene, under controlled reduced pressure, at a temperature in the range of 50 to 100 DEG C. in the presence of a finely divided sodium catalyst, removing the sodium from the polymer solution, removing the solvent, and if desired subsequently extruding the polystyrene as ribbon or rod and pelletizing it by conventional methods. The solution of styrene is preferably obtained by dehydrogenating ethylbenzene contained in a C8 aromatic stream obtained from hydroformed naphtha and substantially freeing the resulting solution of styrene monomer from tar and water. Natural and/or synthetic rubber may be mixed with the polystyrene either during or after polymerization. The molecular weight of the polymer may be controlled by the addition of an ether modifier such as methylethyl or dimethylether. The solvent is preferably removed by flash distillation and subsequent vacuum treatment. The whole process i.e. from the preparation of the styrene in solution to the pelleting of the polystyrene may be effected continuously and the Specification includes a flow diagram showing this continuous process.