GB844488A - A process for the production of filamentary materials from polycarbonates - Google Patents

A process for the production of filamentary materials from polycarbonates

Info

Publication number
GB844488A
GB844488A GB118058A GB118058A GB844488A GB 844488 A GB844488 A GB 844488A GB 118058 A GB118058 A GB 118058A GB 118058 A GB118058 A GB 118058A GB 844488 A GB844488 A GB 844488A
Authority
GB
United Kingdom
Prior art keywords
dihydroxydiphenyl
propane
polycarbonates
derivable
butane
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
GB118058A
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.)
Bayer AG
Original Assignee
Bayer AG
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 Bayer AG filed Critical Bayer AG
Publication of GB844488A publication Critical patent/GB844488A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/0011—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for shaping plates or sheets
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
    • D01F6/62—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters
    • D01F6/64—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters from polycarbonates

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

Filamentary materials or films of thermoplastic polycarbonates of high molecular weight are made by stretching a crystallisable polycarbonate in the form of a filamentary material or film at or above the conversion temperature and below the melting point of the polycarbonate. Stretching is preferably carried out at 20-30 DEG C., above the conversion temperature, which is defined as the point of intersection of the two linear parts of the refractive index-temperature curve. Suitable polycarbonates include those derivable from 1, 1-(4, 41-dihydroxydiphenyl) ethane, -butane, -isobutane, and -cyclohexane, and from 2, 2-(4, 41-dihydroxydiphenyl)-propane and -butane, all of which have conversion temperatures within the range 123-170 DEG C. Polycarbonates derivable from 2, 2-(4, 41 dihydroxydiphenyl) pentane, 2, 2-(4, 41-dihydroxydicresyl) propane, and from mixtures of 2, 2-(4, 41-dihydroxydiphenyl)-propane and 4, 41-dihydroxy diphenyl methane; 2, 2-(4, 41-dihydroxydiphenyl)-propane and 1, 1-(4, 41-dihydroxydiphenyl)-cyclohexane; 2, 2-(4, 41-dihydroxydiphenyl)-propane and 2, 6-dihydroxynaphthalene; 2, 2-(4, 41-dihydroxydiphenyl)-propane and 4, 41-dihydroxydiphenyl; 2, 2-(4, 41-dihydroxydiphenyl) propane and hydroquin one; 2, 2-(4, 41-dihydroxydiphenyl)-propane and xylylene glycol; 2, 2-(4, 41-dihydroxydiphenyl)propane and 2, 2-(4, 41-dihydroxydicyclohexyl)propane; and polycarbonates derivable from 4, 41-dihydroxydiphenylsulphone, 4, 41-dihydroxydiphenyl sulphoxide, 4, 41 dihydroxydiphenyl ether and 4, 41-dihydroxydiphenyl sulphide may also be used. Specifications 772,627, 808,485, 808,486 and 809,735 are referred to.
GB118058A 1957-01-17 1958-01-13 A process for the production of filamentary materials from polycarbonates Expired GB844488A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF22158A DE1190167B (en) 1957-01-17 1957-01-17 Process for the production of molded structures from polycarbonates with increased tensile strength

Publications (1)

Publication Number Publication Date
GB844488A true GB844488A (en) 1960-08-10

Family

ID=7090340

Family Applications (1)

Application Number Title Priority Date Filing Date
GB118058A Expired GB844488A (en) 1957-01-17 1958-01-13 A process for the production of filamentary materials from polycarbonates

Country Status (4)

Country Link
BE (1) BE564009A (en)
DE (1) DE1190167B (en)
FR (1) FR1190170A (en)
GB (1) GB844488A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1282842B (en) * 1963-04-11 1969-02-20 Bayer Ag Finely crystalline stretchable threads or films made of high molecular weight linear polycarbonates and processes for their production

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3214500A (en) * 1960-09-30 1965-10-26 Du Pont Process for making filamentary structures prepared from the polycarbonate of 2, 2-(4, 4'-dihydroxydiphenyl) propane
DE3341557A1 (en) * 1983-10-22 1985-05-02 Bayer Ag, 5090 Leverkusen FILLED POLYCARBONATE FILMS, THEIR PRODUCTION AND USE
DE3421647A1 (en) * 1984-06-09 1985-12-12 Bayer Ag, 5090 Leverkusen METHOD FOR PRODUCING POLYCARBONATE INJECTION MOLDED BODIES

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE831313C (en) * 1942-02-12 1952-02-11 Wingfoot Corp Method and device for the continuous, stepless stretching of films, foils or the like made of organic, plastic plastics, in particular rubber hydrochloride
GB753603A (en) * 1953-12-31 1956-07-25 Ici Ltd Improvements in and relating to the manufacture of films
BE536955A (en) * 1954-03-30

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1282842B (en) * 1963-04-11 1969-02-20 Bayer Ag Finely crystalline stretchable threads or films made of high molecular weight linear polycarbonates and processes for their production

Also Published As

Publication number Publication date
BE564009A (en)
DE1190167B (en) 1965-04-01
FR1190170A (en) 1959-10-09

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