GB1426524A - Process for crystallizing polycarbonates and products obtained - Google Patents

Process for crystallizing polycarbonates and products obtained

Info

Publication number
GB1426524A
GB1426524A GB938673A GB938673A GB1426524A GB 1426524 A GB1426524 A GB 1426524A GB 938673 A GB938673 A GB 938673A GB 938673 A GB938673 A GB 938673A GB 1426524 A GB1426524 A GB 1426524A
Authority
GB
United Kingdom
Prior art keywords
crystallizing
polycarbonates
polycarbonate
weight
hydroxyphenyl
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
GB938673A
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.)
Unibra SA
Original Assignee
Unibra SA
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
Priority claimed from FR7206646A external-priority patent/FR2173681A1/en
Application filed by Unibra SA filed Critical Unibra SA
Publication of GB1426524A publication Critical patent/GB1426524A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G64/00—Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
    • C08G64/40—Post-polymerisation treatment
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
    • C08K13/02—Organic and inorganic ingredients
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
    • C08K5/0083—Nucleating agents promoting the crystallisation of the polymer matrix

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

1426524 Crystallizing polycarbonates UNIBRA SA 26 Feb 1973 [28 Feb 1972 27 July 1972] 9386/73 Heading C3R A process for crystallizing a polycarbonate comprises adding a finely divided nucleating agent selected from salts of carbonic or carboxylic acids to the polycarbonate together with a plasticizing agent compatible with the polycarbonate and crystallizing the mixture thus obtained at a temperature higher than the vitreous transition temperature, i.e. the minimum temperature at which the polymer will crystallize from the mixture. Preferably from 0À01 to 20% by weight of the nucleating agent and from 1 to 50% by weight of the plasticizer are used, the percentages based on the total weight of the composition. The examples describe crystallizing polycarbonates derived from bisphenol A. bis(hydroxyphenyl)methane or bis(hydroxyphenyl)sulphide using various nucleating agents (e.g. CaCO 3 , Na 2 CO 3 or sodium benzoate) and plasticizing agents (e.g. esters of trimellitic acid, tritolylphosphate or n-butylbenzylphthalate). Glass fibres may also be present.
GB938673A 1972-02-28 1973-02-26 Process for crystallizing polycarbonates and products obtained Expired GB1426524A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7206646A FR2173681A1 (en) 1972-02-28 1972-02-28 Crystalline polycarbonate polymers - by heating mixture of polycarbonate, seeding agent and plasticiser above glass
FR7227165A FR2208938B2 (en) 1972-02-28 1972-07-27

Publications (1)

Publication Number Publication Date
GB1426524A true GB1426524A (en) 1976-03-03

Family

ID=26216937

Family Applications (1)

Application Number Title Priority Date Filing Date
GB938673A Expired GB1426524A (en) 1972-02-28 1973-02-26 Process for crystallizing polycarbonates and products obtained

Country Status (9)

Country Link
JP (1) JPS48103651A (en)
BE (1) BE795989A (en)
CA (1) CA1014293A (en)
DD (1) DD102394A5 (en)
DE (1) DE2309450C3 (en)
FR (1) FR2208938B2 (en)
GB (1) GB1426524A (en)
IT (1) IT977804B (en)
NL (1) NL7302539A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4368288A (en) 1979-09-21 1983-01-11 Imperial Chemical Industries Limited Fast crystallizing polyester compositions
US4677148A (en) * 1984-03-23 1987-06-30 Mobay Corporation Thermoplastic compositions having improved mechanical properties

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH621706A5 (en) * 1977-06-17 1981-02-27 Firmenich & Cie
US4454261A (en) * 1982-03-15 1984-06-12 Mobay Chemical Corporation Polycarbonate-calcite compositions
CA1248676A (en) * 1982-06-04 1989-01-10 Enichem Tecnoresine S.P.A. Self-extinguishing polycarbonate composition
DE3371993D1 (en) * 1983-07-13 1987-07-16 Gen Electric Method for promoting and enhancing the optical transparency of a polycarbonate resin prepared by the transesterification of a diaryl carbonate and a dihydric phenol
DE3562256D1 (en) * 1984-03-23 1988-05-26 Mobay Corp Thermoplastic compositions having improved mechanical properties

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4368288A (en) 1979-09-21 1983-01-11 Imperial Chemical Industries Limited Fast crystallizing polyester compositions
US4677148A (en) * 1984-03-23 1987-06-30 Mobay Corporation Thermoplastic compositions having improved mechanical properties

Also Published As

Publication number Publication date
NL7302539A (en) 1973-08-30
IT977804B (en) 1974-09-20
FR2208938A2 (en) 1974-06-28
DE2309450C3 (en) 1980-08-28
DD102394A5 (en) 1973-12-12
FR2208938B2 (en) 1976-08-13
AU5247373A (en) 1974-08-22
BE795989A (en) 1973-08-27
JPS48103651A (en) 1973-12-26
CA1014293A (en) 1977-07-19
DE2309450A1 (en) 1973-09-06
DE2309450B2 (en) 1979-12-13

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee