IT202000000586A1 - Procedimento di realizzazione di uno stampo di formatura, e relativo stampo - Google Patents

Procedimento di realizzazione di uno stampo di formatura, e relativo stampo

Info

Publication number
IT202000000586A1
IT202000000586A1 IT102020000000586A IT202000000586A IT202000000586A1 IT 202000000586 A1 IT202000000586 A1 IT 202000000586A1 IT 102020000000586 A IT102020000000586 A IT 102020000000586A IT 202000000586 A IT202000000586 A IT 202000000586A IT 202000000586 A1 IT202000000586 A1 IT 202000000586A1
Authority
IT
Italy
Prior art keywords
mold
making
relative
forming
forming mold
Prior art date
Application number
IT102020000000586A
Other languages
English (en)
Inventor
Leonardo Pesi
Original Assignee
Leonardo Vision S R L
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 Leonardo Vision S R L filed Critical Leonardo Vision S R L
Priority to IT102020000000586A priority Critical patent/IT202000000586A1/it
Priority to PCT/IT2021/050008 priority patent/WO2021144821A1/en
Publication of IT202000000586A1 publication Critical patent/IT202000000586A1/it

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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/0011—Moulds or cores; Details thereof or accessories therefor thin-walled moulds
    • B29C33/0016—Lost moulds, e.g. staying on the moulded object
    • 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
    • B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
    • B29C33/40—Plastics, e.g. foam or rubber
    • 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
    • B29C33/42—Moulds or cores; Details thereof or accessories therefor characterised by the shape of the moulding surface, e.g. ribs or grooves
    • B29C33/424—Moulding surfaces provided with means for marking or patterning
    • 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
    • B29C39/22—Component parts, details or accessories; Auxiliary operations
    • B29C39/26—Moulds or cores
    • 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
    • B29D11/00038—Production of contact lenses
    • 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
    • B29D11/00038—Production of contact lenses
    • B29D11/00125—Auxiliary operations, e.g. removing oxygen from the mould, conveying moulds from a storage to the production line in an inert atmosphere
    • 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
    • B29D11/00519—Reusable moulds
    • 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
    • B29D11/00317—Production of lenses with markings or patterns
    • B29D11/00346—Production of lenses with markings or patterns having nanosize structures or features, e.g. fillers
    • 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
    • B29K2871/00—Use of polyethers, e.g. PEEK, i.e. polyether-etherketone or PEK, i.e. polyetherketone or derivatives thereof, as mould 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
    • B29K2881/00—Use of polymers having sulfur, with or without nitrogen, oxygen, or carbon only, in the main chain, as mould material
    • B29K2881/06—PSU, i.e. polysulfones; PES, i.e. polyethersulfones or derivatives thereof
    • 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
    • B29L2011/00—Optical elements, e.g. lenses, prisms
    • B29L2011/0016—Lenses
    • B29L2011/0041—Contact lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/02—Lenses; Lens systems ; Methods of designing lenses
    • G02C7/04—Contact lenses for the eyes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Eyeglasses (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
IT102020000000586A 2020-01-14 2020-01-14 Procedimento di realizzazione di uno stampo di formatura, e relativo stampo IT202000000586A1 (it)

Priority Applications (2)

Application Number Priority Date Filing Date Title
IT102020000000586A IT202000000586A1 (it) 2020-01-14 2020-01-14 Procedimento di realizzazione di uno stampo di formatura, e relativo stampo
PCT/IT2021/050008 WO2021144821A1 (en) 2020-01-14 2021-01-12 Method to produce a forming mold, and corresponding mold

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102020000000586A IT202000000586A1 (it) 2020-01-14 2020-01-14 Procedimento di realizzazione di uno stampo di formatura, e relativo stampo

Publications (1)

Publication Number Publication Date
IT202000000586A1 true IT202000000586A1 (it) 2021-07-14

Family

ID=70295750

Family Applications (1)

Application Number Title Priority Date Filing Date
IT102020000000586A IT202000000586A1 (it) 2020-01-14 2020-01-14 Procedimento di realizzazione di uno stampo di formatura, e relativo stampo

Country Status (2)

Country Link
IT (1) IT202000000586A1 (it)
WO (1) WO2021144821A1 (it)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0662877A1 (en) * 1992-09-29 1995-07-19 BAUSCH & LOMB INCORPORATED Method of making plastic molds and process for cast molding contact lenses
EP2116888A1 (en) * 2007-01-16 2009-11-11 Menicon Co., Ltd. Contact lens and process for producing the same

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SG172188A1 (en) * 2008-12-18 2011-07-28 Novartis Ag Reusable lens molds, methods of use thereof and ophthalmic lenses
WO2014012016A1 (en) * 2012-07-13 2014-01-16 University Of Florida Research Foundation, Inc. Contact lens with spatially heterogeneous surface patterns for improved lubricity

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0662877A1 (en) * 1992-09-29 1995-07-19 BAUSCH & LOMB INCORPORATED Method of making plastic molds and process for cast molding contact lenses
EP2116888A1 (en) * 2007-01-16 2009-11-11 Menicon Co., Ltd. Contact lens and process for producing the same

Also Published As

Publication number Publication date
WO2021144821A1 (en) 2021-07-22

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