BR7402113D0 - Composicao de gaxeta para molde de lentes - Google Patents

Composicao de gaxeta para molde de lentes

Info

Publication number
BR7402113D0
BR7402113D0 BR742113A BR211374A BR7402113D0 BR 7402113 D0 BR7402113 D0 BR 7402113D0 BR 742113 A BR742113 A BR 742113A BR 211374 A BR211374 A BR 211374A BR 7402113 D0 BR7402113 D0 BR 7402113D0
Authority
BR
Brazil
Prior art keywords
gasket composition
lens template
template
lens
gasket
Prior art date
Application number
BR742113A
Other languages
English (en)
Inventor
B Goodwin
D Rotenberg
Original Assignee
American Optical Corp
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 American Optical Corp filed Critical American Optical Corp
Publication of BR7402113D0 publication Critical patent/BR7402113D0/pt

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00009—Production of simple or compound lenses
    • B29D11/00413—Production of simple or compound lenses made by moulding between two mould parts which are not in direct contact with one another, e.g. comprising a seal between or on the edges
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/0038—Moulds or cores; Details thereof or accessories therefor with sealing means or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00009—Production of simple or compound lenses
    • B29D11/0048—Moulds for lenses
    • B29D11/00528—Consisting of two mould halves joined by an annular gasket
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/08—Copolymers of ethene
    • C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
    • C08L23/0853—Vinylacetate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
    • 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
    • B29L2031/76—Office equipment or accessories
    • B29L2031/7602—Maps
    • 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
    • Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
    • Y10S425/808—Lens mold
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/21—Circular sheet or circular blank
    • Y10T428/215—Seal, gasket, or packing

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Ophthalmology & Optometry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
BR742113A 1973-03-21 1974-03-19 Composicao de gaxeta para molde de lentes BR7402113D0 (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00343615A US3821333A (en) 1973-03-21 1973-03-21 Gasket for lens mold from a blend of epdm and ethylene/vinyl acetate copolymer

Publications (1)

Publication Number Publication Date
BR7402113D0 true BR7402113D0 (pt) 1974-11-19

Family

ID=23346830

Family Applications (1)

Application Number Title Priority Date Filing Date
BR742113A BR7402113D0 (pt) 1973-03-21 1974-03-19 Composicao de gaxeta para molde de lentes

Country Status (3)

Country Link
US (1) US3821333A (pt)
BR (1) BR7402113D0 (pt)
FR (1) FR2222197B1 (pt)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3941859A (en) * 1974-08-02 1976-03-02 The B. F. Goodrich Company Thermoplastic polymer blends of EPDM polymer, polyethylene and ethylene-vinyl acetate copolymer
US4159292A (en) * 1977-05-25 1979-06-26 Neefe Optical Lab. Inc. Method of controlling the release of a cast plastic lens from a resinous lens mold
GB2007685B (en) * 1977-10-11 1982-05-12 Asahi Dow Ltd Composition for drawn film cold drawn film made of said composition and process for manufacture of said film
US4131654A (en) * 1977-11-28 1978-12-26 The B. F. Goodrich Company Thermoplastic polymer blends comprising EPDM, E/EA copolymer and optionally P.E.
US4364878A (en) * 1978-08-10 1982-12-21 Omnitech Inc. Method for molding ophthalmic lenses
FR2449522A1 (fr) * 1979-02-20 1980-09-19 Essilor Int Procede de moulage, et moule correspondant, notamment pour moulage de lentilles ophtalmiques en matiere organique
US4243576A (en) * 1979-04-02 1981-01-06 National Distillers And Chemical Corp. Blends of ethylene-vinyl acetate copolymer rubbers with elastomers
US4303571A (en) * 1980-01-17 1981-12-01 Exxon Research & Engineering Co. Film-forming thermoplastic elastomeric polymer compositions
US5034078A (en) * 1985-05-08 1991-07-23 Exxon Chemical Patents Inc. Method of making an elastomeric film
US4693446A (en) * 1985-09-20 1987-09-15 Techna Vision, Inc. Gasket for molding plastic lenses
US5218036A (en) * 1987-01-19 1993-06-08 Tonen Sekiyukagaku K.K. Shrinkable film from ethylene-vinyl acetate polymer talc and ethylene-propylene copolymers blend
ES2018706B3 (es) * 1987-03-13 1991-05-01 Der Groep Lambertus Adrianus Van Composicion polimera, un procedimiento para obtener una composicion polimera y el uso de dicha composicion.
GB9106511D0 (en) 1991-03-27 1991-05-15 Lingner & Fischer Gmbh Novel article
US6178582B1 (en) 1992-03-25 2001-01-30 Smithkline Beecham Consumer Healthcare Gmbh Toothbrush comprising a resilient flex region
US5690865A (en) * 1995-03-31 1997-11-25 Johnson & Johnson Vision Products, Inc. Mold material with additives
KR100455046B1 (ko) 1997-02-24 2004-11-06 스미쓰클라인 비참 콘수머 헬쓰케어 게엠베하 칫솔
US6936197B1 (en) 1998-07-24 2005-08-30 Duane L. Wires Method and compositions for manufacturing coated photochromatic articles
AU5224299A (en) * 1998-07-24 2000-02-14 Optical Molding Systems, Inc. Method and compositions for manufacturing coated photochromatic articles
JP3430938B2 (ja) * 1998-10-06 2003-07-28 住友電装株式会社 柔軟性を有する難燃性樹脂組成物及びこれを用いた電線
BR0313516A (pt) * 2002-08-16 2005-06-14 Johnson & Johnson Vision Care Moldes para a produção de lente de contato
WO2017075021A1 (en) 2015-10-29 2017-05-04 Celanese EVA Performance Polymers Corporation Medical tube

Also Published As

Publication number Publication date
FR2222197A1 (pt) 1974-10-18
US3821333A (en) 1974-06-28
FR2222197B1 (pt) 1976-10-08

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