ES2055748T3 - Composiciones termodegradables a base de homo- o copolimeros cristalinos y procedimiento para degradar estos polimeros. - Google Patents

Composiciones termodegradables a base de homo- o copolimeros cristalinos y procedimiento para degradar estos polimeros.

Info

Publication number
ES2055748T3
ES2055748T3 ES89101465T ES89101465T ES2055748T3 ES 2055748 T3 ES2055748 T3 ES 2055748T3 ES 89101465 T ES89101465 T ES 89101465T ES 89101465 T ES89101465 T ES 89101465T ES 2055748 T3 ES2055748 T3 ES 2055748T3
Authority
ES
Spain
Prior art keywords
copolymers
thermodegradable
degrade
polymers
procedure
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
ES89101465T
Other languages
English (en)
Inventor
Antonio Addeo
Annibale Vezzoli
Stefano Saccardi
Corrado Brichta
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Enichem SpA
Original Assignee
Enichem SpA
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 Enichem SpA filed Critical Enichem SpA
Application granted granted Critical
Publication of ES2055748T3 publication Critical patent/ES2055748T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • C08F8/00—Chemical modification by after-treatment
    • C08F8/50—Partial depolymerisation
    • 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
    • C08F2800/00—Copolymer characterised by the proportions of the comonomers expressed
    • C08F2800/20—Copolymer characterised by the proportions of the comonomers expressed as weight or mass percentages
    • 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
    • C08F2810/00—Chemical modification of a polymer
    • C08F2810/10—Chemical modification of a polymer including a reactive processing step which leads, inter alia, to morphological and/or rheological modifications, e.g. visbreaking
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S525/00—Synthetic resins or natural rubbers -- part of the class 520 series
    • Y10S525/938—Polymer degradation

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Silicon Polymers (AREA)
  • Biological Depolymerization Polymers (AREA)

Abstract

SE LLEVA A CABO LA TERMO DEGRADACION SELECTIVA DE HOMO O COPOLIMEROS DE PROPILENO, SIN OCURRENCIA DE FENOMENOS DE TERMOOXIDACION, TRATANDO EL POLIMERO DE 250 A 350 (GRADOS) C CONANTIOXIDANTES PRIMARIOS O SECUNDARIOS Y UN DERIVADO DE BENZOPINACOL DE FORMULA(I), EN LA QUE CUANDO N ES 1 Y X ES 1, Z1 Y Z2 FORMAN JUNTOS UN GRUPO (III); A Y B SON EL GRUPO (IV) (EN EL QUE R1, R2 Y R3 SON RADICALES ALQUILO O ARILO); Y CUANDO X VALE DE 3 A 20, A Y B SON GRUPOS R1 - SI - R2 QUE FORMAN PARTE DE UN OLIGOMERO DE FORMULA(II) Y CUANDO N ES 0 YX ES 1 TIENEN OTROS SIGNIFICADOS QUE SE ESPECIFICAN EN LA INVENCION.
ES89101465T 1988-01-28 1989-01-27 Composiciones termodegradables a base de homo- o copolimeros cristalinos y procedimiento para degradar estos polimeros. Expired - Lifetime ES2055748T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT8819233A IT1216719B (it) 1988-01-28 1988-01-28 Composizioni termodegradabili abase di omo o copolimeri cristallini del propilene eprocedimento per effettuare la degradazione selettiva di tali omo e copolimeri.

Publications (1)

Publication Number Publication Date
ES2055748T3 true ES2055748T3 (es) 1994-09-01

Family

ID=11155982

Family Applications (1)

Application Number Title Priority Date Filing Date
ES89101465T Expired - Lifetime ES2055748T3 (es) 1988-01-28 1989-01-27 Composiciones termodegradables a base de homo- o copolimeros cristalinos y procedimiento para degradar estos polimeros.

Country Status (8)

Country Link
US (1) US4948820A (es)
EP (1) EP0326166B1 (es)
JP (1) JPH023439A (es)
BR (1) BR8900349A (es)
CA (1) CA1336217C (es)
DE (1) DE68910991T2 (es)
ES (1) ES2055748T3 (es)
IT (1) IT1216719B (es)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5194457A (en) * 1990-01-24 1993-03-16 Enimont Augusta Industriale S.R.L Zeolitic nucleants for crystalline polyolefines modified by means of macroradicalic degradation
IT1252388B (it) * 1991-11-12 1995-06-12 Sviluppo Settori Impiego Srl Polimeri e copolimeri del propilene aggraffati con vinilpolibutadiene e procedimento di preparazione
US5518730A (en) 1992-06-03 1996-05-21 Fuisz Technologies Ltd. Biodegradable controlled release flash flow melt-spun delivery system
IT1264437B1 (it) * 1993-05-13 1996-09-23 Spherilene Srl Polimeri del propilene aggraffati con polialchenileni e processo per la loro preparazione
US5814404A (en) * 1994-06-03 1998-09-29 Minnesota Mining And Manufacturing Company Degradable multilayer melt blown microfibers
EP0785968B1 (en) * 1994-10-12 1999-11-17 Kimberly-Clark Worldwide, Inc. Melt-extrudable thermoplastic polypropylene composition and nonwoven web prepared therefrom
IT1272915B (it) * 1995-01-20 1997-07-01 Commer Spa Polimeri e copolimeri propilenici graffati
US5738745A (en) * 1995-11-27 1998-04-14 Kimberly-Clark Worldwide, Inc. Method of improving the photostability of polypropylene compositions
JP3358441B2 (ja) * 1996-06-04 2002-12-16 住友化学工業株式会社 ポリプロピレンブロック共重合体
US6967229B2 (en) 2003-07-07 2005-11-22 Acushnet Company Carbon-carbon initiators for use in golf balls
US9056227B2 (en) 2007-07-03 2015-06-16 Acushnet Company Golf ball comprising a core having a shallow hardness gradient
US8968117B2 (en) 2007-07-03 2015-03-03 Acushnet Company Dual-core comprising zero gradient center and positive gradient outer core layer

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3144436A (en) * 1961-01-04 1964-08-11 Du Pont Process for degrading stereoregular polymers
DK107446C (da) * 1963-04-03 1967-05-29 Bayer Ag Fremgangsmåde til fremstilling af stabile forpolymerisater ved katalytisk polymerisation.
FR2094611A5 (es) * 1970-06-26 1972-02-04 Aquitaine Petrole
US3931355A (en) * 1971-12-24 1976-01-06 Bayer Aktiengesellschaft Radical-initiated polymerization reactions and mixture
US4360606A (en) * 1972-10-26 1982-11-23 Owens-Illinois, Inc. Photo-degradable polymer compositions
NL168232C (nl) * 1976-07-17 1982-03-16 Bayer Ag Werkwijze voor het bereiden van hardbare harsmengsels, werkwijze voor het bereiden van daarvoor als initiator geschikte silylethers, alsmede uit deze harsmengsels vervaardigde gevormde voortbrengselen.
DE3151444A1 (de) * 1981-12-24 1983-07-07 Bayer Ag, 5090 Leverkusen Neue silylether, verfahren zu ihrer herstellung und ihre verwendung als polymerisationsinitiatoren
EP0131323A1 (en) * 1983-07-11 1985-01-16 Akzo N.V. Process for the degradation of (co)polymers of propylene
US4535174A (en) * 1984-11-02 1985-08-13 General Electric Company Free-radical initiators and method for making
JPS61174203A (ja) * 1985-01-29 1986-08-05 Nippon Oil & Fats Co Ltd ポリプロピレンの分子量低下方法
US4675426A (en) * 1986-06-11 1987-06-23 General Electric Company Free-radical, initiators, curable compositions, and methods

Also Published As

Publication number Publication date
CA1336217C (en) 1995-07-04
IT1216719B (it) 1990-03-08
IT8819233A0 (it) 1988-01-28
EP0326166A2 (en) 1989-08-02
JPH023439A (ja) 1990-01-09
US4948820A (en) 1990-08-14
EP0326166B1 (en) 1993-12-01
DE68910991D1 (de) 1994-01-13
DE68910991T2 (de) 1994-03-24
EP0326166A3 (en) 1990-10-24
BR8900349A (pt) 1989-09-19

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