MX166468B - Procedimiento para preparar un copolimero de bloque - Google Patents

Procedimiento para preparar un copolimero de bloque

Info

Publication number
MX166468B
MX166468B MX005579A MX557987A MX166468B MX 166468 B MX166468 B MX 166468B MX 005579 A MX005579 A MX 005579A MX 557987 A MX557987 A MX 557987A MX 166468 B MX166468 B MX 166468B
Authority
MX
Mexico
Prior art keywords
stage
monomer
conjugated diene
polymerization
monovinylaromatic
Prior art date
Application number
MX005579A
Other languages
English (en)
Inventor
Alonzo Gene Kitichen
Frank John Szalla
Original Assignee
Phillips Petroleum Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Phillips Petroleum Co filed Critical Phillips Petroleum Co
Publication of MX166468B publication Critical patent/MX166468B/es

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F293/00—Macromolecular compounds obtained by polymerisation on to a macromolecule having groups capable of inducing the formation of new polymer chains bound exclusively at one or both ends of the starting macromolecule
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F297/00—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer
    • C08F297/02—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the anionic type
    • C08F297/04—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the anionic type polymerising vinyl aromatic monomers and conjugated dienes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Inorganic Chemistry (AREA)
  • Graft Or Block Polymers (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
  • Polymerization Catalysts (AREA)
  • Cosmetics (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

La presente invención se refiere a un procedimiento para preparar un copolímero de bloque caracterizado porque comprende: polimerizar bajo condiciones de polimerización en solución, por lo menos un monómero monovinilaromático que contiene de 8 a 12 átomos de carbono, y por lo menos un monómero de dieno conjugado que contiene de 4 a 6 átomos de carbonos, en una realación de aproximadamente 55 a 95 por ciento en peso de monómero monovinilaromático, y de 45 a 5 por ciento en peso de monómero de dieno conjugado, mediante un procedimiento de polimerización en carga secuencia, en donde por lo menos dod cargas separadas que consisten de dicho monómero monovinilaromático y un iniciador de metal organomonoalcalino, preceden una carga separada de monómero de dieno conjugado, seguida por una carga separada adicional de dicho monómero monovinilaromático y el iniciador referido, antes de una carga final del citado monómero monovinilaromático y dicho monómero de dieno conjugado, polimerizándose cada carga de monómero hasta un término sustancial antes de la adición de cualquier carga subsecuente; en donde el citado procedimiento de polimerización de carga secuencial, emplea una secuencia de cinco etapas; etapa 1: (Si), Etapa 2: (Si), etapa 3: (B) etapa 4: (Si), Etapa 5: (B) y (S) representan un monómero de conjugado y un monómero moovinilaromático, por lo cual se producen cpolímeros resinosos lineales, transparentes, de un color bajo, resistentes al agrietamiento, polimodales, cada uno con un bloque de copolímero terminado en punta, de dichos monómeros.
MX005579A 1986-03-24 1987-03-13 Procedimiento para preparar un copolimero de bloque MX166468B (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/843,443 US4704434A (en) 1986-03-24 1986-03-24 Craze-resistant polymodal linear block copolymers with terminal tapered blocks

Publications (1)

Publication Number Publication Date
MX166468B true MX166468B (es) 1993-01-12

Family

ID=25289993

Family Applications (1)

Application Number Title Priority Date Filing Date
MX005579A MX166468B (es) 1986-03-24 1987-03-13 Procedimiento para preparar un copolimero de bloque

Country Status (13)

Country Link
US (1) US4704434A (es)
EP (1) EP0242614B1 (es)
JP (1) JPS62232419A (es)
KR (1) KR930002902B1 (es)
CN (1) CN87100183A (es)
AT (1) ATE90951T1 (es)
CA (1) CA1257029A (es)
DE (1) DE3786295T2 (es)
ES (1) ES2041250T3 (es)
HK (1) HK83794A (es)
IN (1) IN168085B (es)
MX (1) MX166468B (es)
ZA (1) ZA871595B (es)

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Also Published As

Publication number Publication date
IN168085B (es) 1991-02-02
ZA871595B (en) 1987-08-26
ES2041250T3 (es) 1993-11-16
CA1257029A (en) 1989-07-04
DE3786295T2 (de) 1993-09-30
JPS62232419A (ja) 1987-10-12
EP0242614A3 (en) 1989-06-14
CN87100183A (zh) 1988-07-27
HK83794A (en) 1994-08-26
US4704434A (en) 1987-11-03
KR930002902B1 (ko) 1993-04-15
ATE90951T1 (de) 1993-07-15
EP0242614A2 (en) 1987-10-28
EP0242614B1 (en) 1993-06-23
JPH0545605B2 (es) 1993-07-09
KR870008923A (ko) 1987-10-22
DE3786295D1 (de) 1993-07-29

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