公开(公告)号：CA2111062A1

公开(公告)日：1994-06-24

申请号：CA2111062

申请日：1993-12-09

Applicant: PHILLIPS PETROLEUM CO

Inventor： MOCZYGEMBA GEORGE A ,  TREPKA WILLIAM J

IPC: C08F297/04 ,  C08G81/02 ,  C08F299/00 ,  C08L53/02 ,  C08L25/06

Abstract: A method for preparing tapered block copolymers in a polymerization process by sequentially charging. (1) an initiator and monovinylaromatic monomers in the presence of a randomizer; (2) an initiator and monovinylaromatic monomers; (3) a mixture of monovinylaromatic and conjugated diene monomers; (4) conjugated diene monomers; and (5) a coupling agent; to produce a polymodal tapered block copolymer. The copolymers are particularly useful for applications such as packaging and food or drink containers which require transparency and good environmental stress crack resistance.

公开(公告)号：CA1228347A

公开(公告)日：1987-10-20

申请号：CA416509

申请日：1982-11-26

Applicant: PHILLIPS PETROLEUM CO

Inventor： SCHIFF SIDNEY ,  TREPKA WILLIAM J

IPC: C08C19/02 ,  C08F8/04 ,  C10M143/00 ,  C10M119/02

Abstract: Hydrogenated completely random conjugated diene/monovinylarene copolymers with a conjugated diene content above about 50 weight percent, monovinylarene content below about 50 weight percent, vinyl unsaturation (normalized) at least about 25 weight percent, block polymonovinylarene below about 5 weight percent, and molecular weight Mn in the range of about 30,000-200,000, are soluble in synthetic poly(.alpha.-olefin) lubricating oils providing therein effective viscosity index control, pour point, and shear loss at low concentrations.

公开(公告)号：CA835487A

公开(公告)日：1970-02-24

申请号：CA835487D

Applicant: PHILLIPS PETROLEUM CO

Inventor： URANECK CARL A ,  TREPKA WILLIAM J

公开(公告)号：CA833660A

公开(公告)日：1970-02-03

申请号：CA833660D

Applicant: PHILLIPS PETROLEUM CO

Inventor： TREPKA WILLIAM J ,  SONNENFELD RICHARD J

公开(公告)号：AT241655T

公开(公告)日：2003-06-15

申请号：AT94115370

申请日：1994-09-29

Applicant: PHILLIPS PETROLEUM CO

Inventor： TREPKA WILLIAM J ,  MOCZYGEMBA GEORGE A ,  NASH LARRY L ,  DEPORTER CRAIG D ,  STACY NATHAN E ,  FARRAR RALPH C ,  SELMAN CHARLES M

IPC: C08F297/04

Abstract: A method for preparing resinous polymodal monovinylarene-conjugated diene block copolymers and polymers produced thereby are provided. The method comprises sequentially contacting under polymerization conditions: (a) a monovinylarene monomer and initiator; (b) initiator and a monovinylarene monomer; (c) a sequence of at least two charges selected from the group consisting of (i) initiator and a monovinylarene monomer, (ii) a mixture of monovinylarene monomer and conjugated diene monomer, (iii) a conjugated diene monomer, (iv) a monovinylarene monomer; (d) a coupling agent; wherein the sequence of at least two charges in step (c) can be made in any order. In a preferred embodiment, at least three initiator charges are provided. In another preferred embodiment, at least three monovinylarene charges precede the first charge containing conjugated diene. In another preferred embodiment, at least four monovinylarene charges precede the first charge containing conjugated diene.

公开(公告)号：DE69413931T2

公开(公告)日：1999-03-18

申请号：DE69413931

申请日：1994-12-01

Applicant: PHILLIPS PETROLEUM CO

Inventor： MOCZYGEMBY GEORGE A ,  TREPKA WILLIAM J ,  KNIGHT NANCY R ,  STACY NATHAN E

IPC: C08F297/02 ,  C08F297/04 ,  C08G81/02 ,  C08L53/02

Abstract: A copolymer is prepd. in a reaction zone by: (a) introducing a monovinylaromatic monomer and an initiator in the presence of a randomiser and polymerising until no free monomer is present; (b) adding an initiator and a monovinylaromatic monomer and polymerising until no free monomer is present; (c) adding a mixt. of monovinylaromatic monomer and conjugated diene and polymerising until no free monomer is present; (d) adding a mixt. of monovinylaromatic monomer and conjugated diene monomer and polymerising until no free monomer is present; (e) adding a conjugated diene monomer and allowing complete polymerisation to occur until no free monomer is present; and (f) adding a coupling agent. Only two initiator charges are present and are added in steps (a) and (b). Also claimed are (i) polymodal copolymers produced by the method; (ii)-articles made from the copolymers, and (ii) a polymodal coupled block copolymer having chains resulting from coupling; S-S-B/S-B/S-B-Li S-B/S-B/S-B-Li S = monovinyl aromatic block; B = conjugated diene block; B/S = tapered B and S block; and Li = living polymer or coupling site.

公开(公告)号：DE69415935D1

公开(公告)日：1999-02-25

申请号：DE69415935

申请日：1994-11-14

Applicant: PHILLIPS PETROLEUM CO

Inventor： TREPKA WILLIAM J ,  STACY NATHAN E ,  MOCZYGEMBA GEORGE A ,  FARRAR JR RALPH C

IPC: C08F8/44 ,  C08F297/02 ,  C08F297/04 ,  C08G81/02 ,  C08L25/04 ,  C08L25/06 ,  C08L53/02

Abstract: A method of preparing a polymer under solution polymerization conditions in a reaction zone comprising: (a) charging a monovinylaromatic monomer and an initiator in the presence of a randomizer; thereafter (b) charging an initiator and a monovinylaromatic monomer; thereafter (c) charging a mixture of a monovinylaromatic monomer and conjugated diene monomer; thereafter (d) optionally charging a mixture of monovinylaromatic monomer and conjugated diene monomer; and thereafter (e) charging the reaction mixture with a coupling agent, wherein in each of steps (a) and (d) polymerization is conducted until essentially no free monomer is present.

公开(公告)号：ES2122135T3

公开(公告)日：1998-12-16

申请号：ES94118996

申请日：1994-12-01

Applicant: PHILLIPS PETROLEUM CO

Inventor： MOCZYGEMBY GEORGE A ,  TREPKA WILLIAM J ,  KNIGHT NANCY R ,  STACY NATHAN E

IPC: C08F297/02 ,  C08F297/04 ,  C08G81/02 ,  C08L53/02

Abstract: A copolymer is prepd. in a reaction zone by: (a) introducing a monovinylaromatic monomer and an initiator in the presence of a randomiser and polymerising until no free monomer is present; (b) adding an initiator and a monovinylaromatic monomer and polymerising until no free monomer is present; (c) adding a mixt. of monovinylaromatic monomer and conjugated diene and polymerising until no free monomer is present; (d) adding a mixt. of monovinylaromatic monomer and conjugated diene monomer and polymerising until no free monomer is present; (e) adding a conjugated diene monomer and allowing complete polymerisation to occur until no free monomer is present; and (f) adding a coupling agent. Only two initiator charges are present and are added in steps (a) and (b). Also claimed are (i) polymodal copolymers produced by the method; (ii)-articles made from the copolymers, and (ii) a polymodal coupled block copolymer having chains resulting from coupling; S-S-B/S-B/S-B-Li S-B/S-B/S-B-Li S = monovinyl aromatic block; B = conjugated diene block; B/S = tapered B and S block; and Li = living polymer or coupling site.

公开(公告)号：NO303227B1

公开(公告)日：1998-06-15

申请号：NO944630

申请日：1994-12-01

Applicant: PHILLIPS PETROLEUM CO

Inventor： MOCZYGEMBA GEORGE A ,  KNIGHT NANCY R ,  TREPKA WILLIAM J ,  STACY NATHAN E

IPC: C08F297/02 ,  C08F297/04

Abstract: A copolymer is prepd. in a reaction zone by: (a) introducing a monovinylaromatic monomer and an initiator in the presence of a randomiser and polymerising until no free monomer is present; (b) adding an initiator and a monovinylaromatic monomer and polymerising until no free monomer is present; (c) adding a mixt. of monovinylaromatic monomer and conjugated diene and polymerising until no free monomer is present; (d) adding a mixt. of monovinylaromatic monomer and conjugated diene monomer and polymerising until no free monomer is present; (e) adding a conjugated diene monomer and allowing complete polymerisation to occur until no free monomer is present; and (f) adding a coupling agent. Only two initiator charges are present and are added in steps (a) and (b). Also claimed are (i) polymodal copolymers produced by the method; (ii)-articles made from the copolymers, and (ii) a polymodal coupled block copolymer having chains resulting from coupling; S-S-B/S-B/S-B-Li S-B/S-B/S-B-Li S = monovinyl aromatic block; B = conjugated diene block; B/S = tapered B and S block; and Li = living polymer or coupling site.

公开(公告)号：CA2060020C

公开(公告)日：1996-09-17

申请号：CA2060020

申请日：1992-01-28

Applicant: PHILLIPS PETROLEUM CO

Inventor： TREPKA WILLIAM J ,  MOCZYGEMBA GEORGE A ,  FARRAR RALPH C JR

IPC: C08F297/04

Abstract: A method for preparing tapered block copolymers in a polymerization process by sequentially charging: (1) an initiator and monovinylaromatic monomers in the presence of a randomizer; (2) an initiator and a mixture of monovinylaromatic and conjugated diene monomers; (3) an initiator and a mixture of monovinylaromatic and conjugated diene monomers; and (4) a coupling agent to produce a polymodal tapered block copolymer. The copolymers are particularly useful for packaging applications which require good environmental stress crack resistance.