DE2740545C2 - Verfahren zum Gießen von Polymerenstäben - Google Patents

Verfahren zum Gießen von Polymerenstäben

Info

Publication number
DE2740545C2
DE2740545C2 DE2740545A DE2740545A DE2740545C2 DE 2740545 C2 DE2740545 C2 DE 2740545C2 DE 2740545 A DE2740545 A DE 2740545A DE 2740545 A DE2740545 A DE 2740545A DE 2740545 C2 DE2740545 C2 DE 2740545C2
Authority
DE
Germany
Prior art keywords
weight
parts
vinylpyrrolidone
mixture
tube
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
DE2740545A
Other languages
German (de)
English (en)
Other versions
DE2740545A1 (de
Inventor
Patricia M. Dudley Mass. Cuffee
Albert R. Sturbridge Mass. LeBoeuf
Edwar A. Southbridge Mass. Travnicek
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.)
Novartis AG
Original Assignee
AO Inc., Southbridge, Mass.
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 AO Inc., Southbridge, Mass. filed Critical AO Inc., Southbridge, Mass.
Publication of DE2740545A1 publication Critical patent/DE2740545A1/de
Application granted granted Critical
Publication of DE2740545C2 publication Critical patent/DE2740545C2/de
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
    • B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • B29C39/02—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • 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
    • B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • B29C39/003—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor characterised by the choice of material
    • B29C39/006—Monomers or prepolymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2025/00—Use of polymers of vinyl-aromatic compounds or derivatives thereof as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2055/00—Use of specific polymers obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of main groups B29K2023/00 - B29K2049/00, e.g. having a vinyl group, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2827/00—Use of polyvinylhalogenides or derivatives thereof as mould material
    • B29K2827/12—Use of polyvinylhalogenides or derivatives thereof as mould material containing fluorine
    • B29K2827/18—PTFE, i.e. polytetrafluorethene, e.g. ePTFE, i.e. expanded polytetrafluorethene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/06—Rods, e.g. connecting rods, rails, stakes

Landscapes

  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Prostheses (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Polymerisation Methods In General (AREA)
  • Eyeglasses (AREA)
  • Materials For Medical Uses (AREA)
DE2740545A 1976-09-13 1977-09-06 Verfahren zum Gießen von Polymerenstäben Expired DE2740545C2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/722,960 US4127638A (en) 1976-09-13 1976-09-13 Process for casting polymer rods

Publications (2)

Publication Number Publication Date
DE2740545A1 DE2740545A1 (de) 1978-03-16
DE2740545C2 true DE2740545C2 (de) 1987-05-07

Family

ID=24904186

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2740545A Expired DE2740545C2 (de) 1976-09-13 1977-09-06 Verfahren zum Gießen von Polymerenstäben

Country Status (5)

Country Link
US (1) US4127638A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS5335764A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE2740545C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR2364109A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1549543A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6045209B2 (ja) * 1976-07-20 1985-10-08 住友化学工業株式会社 連続重合方法
AU538943B2 (en) * 1979-01-22 1984-09-06 Mobil Oil Corp. Converting s and n containing organic charge with zsm-20 catalyst
JPS5921367B2 (ja) * 1979-05-29 1984-05-19 大同特殊鋼株式会社 含クロム鋼の精錬方法
US4931228A (en) * 1989-04-05 1990-06-05 Coastvision Method of manufacturing soft contact lens buttons
JP4855650B2 (ja) * 2004-04-16 2012-01-18 第一工業製薬株式会社 ビニルピロリドン重合体の製造方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1513299A (fr) * 1966-09-02 1968-02-16 Verreries De Goetzenbruck S A Procédé de fabrication d'écrans ou d'oculaires composites en matière organique
US3621079A (en) * 1968-10-21 1971-11-16 Patent Structures Inc Graft of hydroxyalkyl methacrylate onto polyvinylpyrrolidone
US3639524A (en) * 1969-07-28 1972-02-01 Maurice Seiderman Hydrophilic gel polymer insoluble in water from polyvinylpyrrolidone with n-vinyl-2-pyrrolidone and methacrylic modifier
BE759530A (fr) * 1969-11-28 1971-04-30 Griffin Lab Inc Lentille de contact et son procede de fabrication
US3839304A (en) * 1973-02-12 1974-10-01 American Optical Corp Soft contact lens and method of production thereof
US3894129A (en) * 1973-03-15 1975-07-08 American Optical Corp Method of manufacture of strain free contact lenses
US3978164A (en) * 1974-11-21 1976-08-31 Warner-Lambert Company Pyrrolidone-methacrylate graft copolymers from 3-stage polymerization process

Also Published As

Publication number Publication date
JPS6159890B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1986-12-18
FR2364109A1 (fr) 1978-04-07
US4127638A (en) 1978-11-28
JPS5335764A (en) 1978-04-03
FR2364109B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1980-05-16
DE2740545A1 (de) 1978-03-16
GB1549543A (en) 1979-08-08

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Legal Events

Date Code Title Description
8128 New person/name/address of the agent

Representative=s name: DIEHL, H., DIPL.-PHYS. DR.RER.NAT., PAT.-ANW., 800

8127 New person/name/address of the applicant

Owner name: AO INC., 07950 SOUTHBRIDGE, MASS., US

8128 New person/name/address of the agent

Representative=s name: DIEHL, H., DIPL.-PHYS. DR.RER.NAT. KRESSIN, H., DI

8110 Request for examination paragraph 44
8128 New person/name/address of the agent

Representative=s name: DIEHL, H., DIPL.-PHYS. DR.RER.NAT., PAT.-ANW., 800

D2 Grant after examination
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: CIBA-GEIGY AG, BASEL, CH

8328 Change in the person/name/address of the agent

Free format text: DIEHL, H., DIPL.-PHYS. DR.RER.NAT., 8000 MUENCHEN GLAESER, J., DIPL.-ING., 2000 HAMBURG HILTL, E., DIPL.-CHEM. DR.RER.NAT. BURGER, E., DIPL.-ING., PAT.-ANWAELTE, 8000 MUENCHEN

8339 Ceased/non-payment of the annual fee