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：CA2117708A1

公开(公告)日：1995-03-31

申请号：CA2117708

申请日：1994-09-20

Applicant: PHILLIPS PETROLEUM CO

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

IPC: C08F297/04 ,  C08F297/00

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：NO944630D0

公开(公告)日：1994-12-01

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 ,  C08F

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：DE69415935T2

公开(公告)日：1999-06-02

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：ES2126045T3

公开(公告)日：1999-03-16

申请号：ES94117957

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：CA2134026C

公开(公告)日：1998-06-09

申请号：CA2134026

申请日：1994-10-21

Applicant: PHILLIPS PETROLEUM CO

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

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

Abstract: A method for preparing tapered block copolymers which are particularly useful for blend components in blends with polymers of styrene. In the first embodiment of this invention the copolymers are prepared 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; and (4) a coupling agent; to produce a polymodal tapered block copolymer. In a second embodiment of the invention tapered block copolymers are prepared 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) a mixture of monovinylaromatic and conjugated diene monomers; and (5) a coupling agent; to produce a polymodal tapered block copolymer. The invention copolymers and blends of the invention copolymers with polymers of styrene are particularly useful for applications such as packaging and food or drink containers which require transparency, low blueness, colorlessness, good impact strength and ductility.

公开(公告)号：SG28226A1

公开(公告)日：1996-04-01

申请号：SG1995000130

申请日：1995-03-21

Applicant: PHILLIPS PETROLEUM CO

Inventor： DEPORTER CRAIG D ,  FARRAR RALPH C JR ,  STACY NATHAN E ,  MOCZYGEMBA GEORGE A

IPC: C08F297/04

公开(公告)号：NO944630L

公开(公告)日：1995-06-06

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：CA2134026A1

公开(公告)日：1995-05-16

申请号：CA2134026

申请日：1994-10-21

Applicant: PHILLIPS PETROLEUM CO

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

IPC: C08F8/44 ,  C08F297/02 ,  C08F297/04 ,  C08G81/02 ,  C08L25/04 ,  C08L25/06 ,  C08L53/02 ,  C08F297/00

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.