公开(公告)号：ES2127957T3

公开(公告)日：1999-05-01

申请号：ES95104209

申请日：1995-03-22

Applicant: PHILLIPS PETROLEUM CO

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

IPC: C08F297/04

Abstract: Preparing a polymer comprises: sequentially contacting under polymerisation conditions and in the presence of a randomiser; (a) a monovinylaromatic monomer and an initiator; (b) an initiator and a monovinylaromatic monomer; (c) a conjugated diene;(d) an initiator and a mixt. of monovinylaromatic monomer and conjugated diene monomer; (e) a conjugated diene; and (f) a coupling agent; and wherein no more than three initiator charges are present. Also claimed are: Copolymers produced as above. Articles made from the above polymer.

公开(公告)号：AT175686T

公开(公告)日：1999-01-15

申请号：AT94117957

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：CA2134027C

公开(公告)日：1998-10-13

申请号：CA2134027

申请日：1994-10-21

Applicant: PHILLIPS PETROLEUM CO

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

IPC: C08F297/02 ,  C08F297/04 ,  C08L53/02 ,  C08L25/04

Abstract: A method for preparing tapered block copolymers in a polymerization process by sequentially charging: (1) an initiator and monovinylaromatic monomer in the presence of a randomizer; (2) an initiator and monovinylaromatic monomer; (3) a mixture of monovinylaromatic and conjugated diene monomers; (4) a mixture of monovinylaromatic and conjugated diene monomers; (5) conjugated diene monomer; and (6) a coupling agent; and the polymodal tapered block copolymers prepared thereby. The copolymers are particularly useful neat or in blends for applications such as packaging and food or drink containers which require transparency and good environmental stress crack resistance.

公开(公告)号：CA2039379C

公开(公告)日：1997-12-30

申请号：CA2039379

申请日：1991-03-28

Applicant: PHILLIPS PETROLEUM CO

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

IPC: C08F297/02 ,  C08F297/04 ,  C08G81/02 ,  C08F295/00

Abstract: A method for preparing resinous copolymers by sequential charge copolymerization of at least two charges, at least one being a conjugated diene and at least one being a monovinylarene; followed by a charge of a polyfunctional coupling agent; and the final charge being an essentially difunctional coupling agent.

公开(公告)号：CA2052387A1

公开(公告)日：1992-06-21

申请号：CA2052387

申请日：1991-09-27

Applicant: PHILLIPS PETROLEUM CO

Inventor： MOCZYGEMBA GEORGE A ,  TREPKA WILLIAM J

IPC: C08F297/04

Abstract: A method for preparing tapered block copolymers in a polymerization process by charging an initiator and monomers sequentially with one or more charges of first one of the monomers, then with a mixture of the two monomers, and then with one or more charges of the first monomer to produce a polymodal tapered block copolymer. Suitable monomers include conjugated dienes and monovinylaromatic compounds. The copolymers are particularly useful for applications requiring environmental stress crack resistance.

公开(公告)号：CA2347535A1

公开(公告)日：2000-04-20

申请号：CA2347535

申请日：1999-09-02

Applicant: PHILLIPS PETROLEUM CO

Inventor： KUANG JIANXIN ,  NASH LARRY L ,  AHMED IQBAL ,  MOCZYGEMBA GEORGE A

IPC: C08J5/00 ,  C08F297/04 ,  C08L53/02 ,  C08F293/00

Abstract: This invention provides a process to produce coupled block copolymers and sa id coupled block copolymers.

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：IN182265B

公开(公告)日：1999-02-27

申请号：IN1005CA1994

申请日：1994-12-02

Applicant: PHILLIPS PETROLEUM CO

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

IPC: C08F2/00 ,  C08F279/00

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.