ES8203923A1 - Modified vinyl-aromatic polymers - Google Patents

Modified vinyl-aromatic polymers

Info

Publication number
ES8203923A1
ES8203923A1 ES499086A ES499086A ES8203923A1 ES 8203923 A1 ES8203923 A1 ES 8203923A1 ES 499086 A ES499086 A ES 499086A ES 499086 A ES499086 A ES 499086A ES 8203923 A1 ES8203923 A1 ES 8203923A1
Authority
ES
Spain
Prior art keywords
polymers
modified vinyl
toluene
weight
aromatic polymers
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
Application number
ES499086A
Other languages
Spanish (es)
Other versions
ES499086A0 (en
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.)
Montedison SpA
Original Assignee
Montedison 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 Montedison SpA filed Critical Montedison SpA
Publication of ES8203923A1 publication Critical patent/ES8203923A1/en
Publication of ES499086A0 publication Critical patent/ES499086A0/en
Granted 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
    • C08F279/00—Macromolecular compounds obtained by polymerising monomers on to polymers of monomers having two or more carbon-to-carbon double bonds as defined in group C08F36/00
    • C08F279/02—Macromolecular compounds obtained by polymerising monomers on to polymers of monomers having two or more carbon-to-carbon double bonds as defined in group C08F36/00 on to polymers of conjugated dienes
    • C08F279/04—Vinyl aromatic monomers and nitriles as the only monomers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Graft Or Block Polymers (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

Modified vinyl-aromatic polymers, which are suited for being moulded or vacuum-formed and which have an improved resistance to fissuring under stress, containing from 6% to 12% by weight of an ethylenically unsaturated nitrile and having the following characteristics: a) at least 23% by weight of an elastomeric phase insoluble in toluene b) the elastomeric phase has a swelling index in toluene greater than 10 c) a melt-index of at least 1.5 d) a bending-modulus greater than 15,000 kg/sq.cm e) a torsional modulus greater than 5,500 kg/sq.cm and f) an Izod resistance at 23 DEG C greater than 7 kg cm/cm. The polymers are obtained in the Examples by an inversion process, i.e. a bulk prepolymerization followed by an aqueous suspension polymerization stage. The polymers adhere well to polyurethane and are resistant to perfluorinated refrigerant fluids.
ES499086A 1980-01-16 1981-01-15 PROCEDURE FOR THE PREPARATION OF MODIFIED VINYL-AROMATIC POLYMERS WITH IMPROVED RESISTANCE TO STRESS CRACKING Granted ES499086A0 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT19220/80A IT1193356B (en) 1980-01-16 1980-01-16 MODIFIED VINYL-AROMATIC POLYMERS HAVING IMPROVED CRACK RESISTANCE UNDER STRESS

Publications (2)

Publication Number Publication Date
ES8203923A1 true ES8203923A1 (en) 1982-05-01
ES499086A0 ES499086A0 (en) 1982-05-01

Family

ID=11155892

Family Applications (1)

Application Number Title Priority Date Filing Date
ES499086A Granted ES499086A0 (en) 1980-01-16 1981-01-15 PROCEDURE FOR THE PREPARATION OF MODIFIED VINYL-AROMATIC POLYMERS WITH IMPROVED RESISTANCE TO STRESS CRACKING

Country Status (12)

Country Link
JP (1) JPH0611774B2 (en)
AT (1) AT368761B (en)
BE (1) BE887080A (en)
CH (1) CH648333A5 (en)
DE (1) DE3100785A1 (en)
ES (1) ES499086A0 (en)
FR (1) FR2473530B1 (en)
GB (1) GB2067579B (en)
IT (1) IT1193356B (en)
NL (1) NL190333C (en)
SE (1) SE450705B (en)
YU (1) YU42375B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59196310A (en) * 1983-04-22 1984-11-07 Japan Synthetic Rubber Co Ltd Thermoplastic resin composition
DE3910942A1 (en) * 1989-04-05 1990-10-11 Basf Ag THERMOPLASTIC MOLDING
US5238719A (en) * 1989-04-27 1993-08-24 Monsanto Kasei Company Thermoplastic resin compositions resistant to fluorinated/chlorinated hydrocarbons and the use thereof
JPH0742393B2 (en) * 1989-04-27 1995-05-10 三菱化学株式会社 CFC-resistant thermoplastic resin composition and use thereof
US5486407A (en) * 1993-06-08 1996-01-23 General Electric Co. High rubber backing multi-layer ABS system which exhibits improved chemical resistance to HCFC blowing agents

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE620108A (en) * 1961-07-11
BE643981A (en) * 1963-03-22 1964-06-15
US3448175A (en) * 1963-08-16 1969-06-03 Dart Ind Inc Process of polymerizing styrene and acrylonitrile with a diolefin rubber
IL23759A (en) * 1964-06-26 1968-12-26 Montedison Spa Preparation of high impact copolymers
US3717688A (en) * 1969-11-22 1973-02-20 Shinetsu Chemical Co Methods for preparing graft polymers and resin compositions
JPS4915478A (en) * 1972-05-17 1974-02-09
DE2262610B2 (en) * 1972-12-21 1980-01-03 Hoechst Ag, 6000 Frankfurt Process for the production of impact-resistant styrene polymers
JPS51125495A (en) * 1975-03-11 1976-11-01 Japan Synthetic Rubber Co Ltd A process for producing high-impact resins with improved moldability
DE2525019B1 (en) * 1975-06-05 1975-12-04 Basf Ag Impact-resistant thermoplastic molding compounds with increased resistance to stress cracking
JPH0896688A (en) * 1994-09-27 1996-04-12 Matsushita Electric Works Ltd Electrical apparatus with terminal portion and combining terminal cover used for the apparatus

Also Published As

Publication number Publication date
GB2067579B (en) 1984-07-04
JPS56112920A (en) 1981-09-05
IT8019220A0 (en) 1980-01-16
CH648333A5 (en) 1985-03-15
BE887080A (en) 1981-07-15
SE450705B (en) 1987-07-20
ATA12981A (en) 1982-03-15
AT368761B (en) 1982-11-10
NL8100105A (en) 1981-08-17
DE3100785C2 (en) 1991-02-14
ES499086A0 (en) 1982-05-01
YU9181A (en) 1983-04-30
NL190333C (en) 1994-01-17
JPH0611774B2 (en) 1994-02-16
YU42375B (en) 1988-08-31
SE8100128L (en) 1981-07-17
DE3100785A1 (en) 1981-12-17
FR2473530B1 (en) 1985-12-27
FR2473530A1 (en) 1981-07-17
GB2067579A (en) 1981-07-30
NL190333B (en) 1993-08-16
IT1193356B (en) 1988-06-15

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20020225