HK1026394A1 - Process for preparing optical thermoplastic urethane resin lenses and lenses prepared thereby - Google Patents

Process for preparing optical thermoplastic urethane resin lenses and lenses prepared thereby

Info

Publication number
HK1026394A1
HK1026394A1 HK00105729A HK00105729A HK1026394A1 HK 1026394 A1 HK1026394 A1 HK 1026394A1 HK 00105729 A HK00105729 A HK 00105729A HK 00105729 A HK00105729 A HK 00105729A HK 1026394 A1 HK1026394 A1 HK 1026394A1
Authority
HK
Hong Kong
Prior art keywords
lenses
urethane resin
thermoplastic urethane
preparing optical
prepared
Prior art date
Application number
HK00105729A
Other languages
English (en)
Inventor
Zhou Yang
Zhenya Zhu
Yinnian Lin
Tadashi Kobayashi
Yuyoshi Saito
Original Assignee
Asahi Lite Optical Co Ltd
Optima Inc
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 Asahi Lite Optical Co Ltd, Optima Inc filed Critical Asahi Lite Optical Co Ltd
Publication of HK1026394A1 publication Critical patent/HK1026394A1/xx

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
    • B29D11/00423—Plants for the production of simple or compound 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
    • G02B1/041—Lenses
    • 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
    • B29C2791/00—Shaping characteristics in general
    • B29C2791/001—Shaping in several steps
    • 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
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0011—Combinations of extrusion moulding with other shaping operations combined with compression moulding
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • 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
    • B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ophthalmology & Optometry (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Eyeglasses (AREA)
HK00105729A 1997-04-21 2000-09-12 Process for preparing optical thermoplastic urethane resin lenses and lenses prepared thereby HK1026394A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP10348397A JP3999305B2 (ja) 1997-04-21 1997-04-21 光学用熱可塑性ウレタン樹脂レンズの製造方法とそのレンズ
PCT/JP1998/001764 WO1998047694A1 (fr) 1997-04-21 1998-04-17 Procede de preparation de lentilles optiques thermoplastiques de resine urethanne et lentilles fabriquees selon ce procede

Publications (1)

Publication Number Publication Date
HK1026394A1 true HK1026394A1 (en) 2000-12-15

Family

ID=14355265

Family Applications (1)

Application Number Title Priority Date Filing Date
HK00105729A HK1026394A1 (en) 1997-04-21 2000-09-12 Process for preparing optical thermoplastic urethane resin lenses and lenses prepared thereby

Country Status (8)

Country Link
US (1) US6309568B1 (ja)
EP (1) EP1013410B1 (ja)
JP (1) JP3999305B2 (ja)
CN (1) CN1064309C (ja)
DE (1) DE69832395T2 (ja)
ES (1) ES2251768T3 (ja)
HK (1) HK1026394A1 (ja)
WO (1) WO1998047694A1 (ja)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE317758T1 (de) * 2001-01-24 2006-03-15 Novartis Pharma Gmbh Verfahren zur herstellung von linsen
US6887401B2 (en) * 2001-11-05 2005-05-03 Essilor International Compagnie General D'optique Method for making transparent polythiourethane substrates in particular optical substrates
ITTO20070125A1 (it) * 2007-02-21 2008-08-22 F Lli Maris S P A Procedimento di conduzione di una reazione chimica in fase liquida entro un estrusore bivite.
US20110011832A1 (en) * 2008-03-17 2011-01-20 Hoya Corporation Method for producing plastic lens

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2302918A (en) * 1940-09-12 1942-11-24 Univis Lens Co Method of molding blanks of predetermined mass
JPS63109044A (ja) 1986-10-27 1988-05-13 Dainippon Printing Co Ltd フレネルレンズ板の製造法
FR2623120B1 (fr) 1987-11-12 1990-04-27 Saint Gobain Vitrage Procede et dispositif pour la fabrication d'une feuille de matiere plastique de haute qualite optique comprenant une couche de polyurethane obtenue par extrusion et pressage
US4886866A (en) * 1987-12-21 1989-12-12 W. R. Grace & Co.-Conn. Contact lenses based on biocompatible polyurethane and polyurea-urethane hydrated polymers
US5322649A (en) * 1992-08-03 1994-06-21 Kabi Pharmacia Ophthalmics, Inc. Method of manufacturing surgical implants
JP2695599B2 (ja) 1993-09-29 1997-12-24 ホーヤ株式会社 ポリウレタンレンズの製造方法
JP3220614B2 (ja) * 1994-04-08 2001-10-22 三井化学株式会社 ウレタン系プラスチックレンズ用組成物、それよりなるプラスチックレンズおよびその製造方法
JP2538520B2 (ja) * 1994-06-21 1996-09-25 株式会社三木田興業 管渠等の閉塞方法及び装置
US5679756A (en) * 1995-12-22 1997-10-21 Optima Inc. Optical thermoplastic thiourethane-urethane copolymers
US6015512A (en) * 1998-01-28 2000-01-18 Optima Inc. Extrusion-compression molding of optical articles
US5908976A (en) * 1998-02-13 1999-06-01 Pioneer Hi-Bred International, Inc. Soybean variety 95B71

Also Published As

Publication number Publication date
EP1013410B1 (en) 2005-11-16
CN1064309C (zh) 2001-04-11
US6309568B1 (en) 2001-10-30
EP1013410A1 (en) 2000-06-28
JPH10291257A (ja) 1998-11-04
WO1998047694A1 (fr) 1998-10-29
DE69832395D1 (de) 2005-12-22
CN1252751A (zh) 2000-05-10
ES2251768T3 (es) 2006-05-01
DE69832395T2 (de) 2006-08-24
JP3999305B2 (ja) 2007-10-31
EP1013410A4 (en) 2004-09-15

Similar Documents

Publication Publication Date Title
GB9716774D0 (en) Thermoplastic copolymer for optical use and process for preparing the same
EP0976772A4 (en) PROCESS FOR PRODUCING POLYCARBONATE RESIN
KR19987001688A (en) Process for preparing water-absorbent resin
HK1007049A1 (en) Polythiol process for producing same sulfur-containing urethane-base resin prepared from the polythiol process for producing the resin and lens
AU3007989A (en) Highly-refractive plastic lens and process for making the lens
SG43003A1 (en) Method of resin molding and resin molding machine for the same
EP0735073A3 (de) Verfahren zur Herstellung von thermoplastischem Polycarbonat
EP0796723A4 (en) METHOD FOR THE PRODUCTION OF CONTACT LENSES AND THE CONTACT LENSES PRODUCED IN THIS PROCESS
EP0506315A3 (en) Optical urethane resins and plastic lenses comprising the same
EP0698798A3 (de) Beschichtete optische Kunststofflinse
IL126125A0 (en) Optical lens preforms
GB9606068D0 (en) Injection moulding apparatus
EP1008608A4 (en) BRANCHED POLYCARBONATE AND METHOD FOR THE PRODUCTION THEREOF
IL130197A0 (en) Polymeric processing system for producing ophthalmic lenses
GB2276583B (en) Plastic moulding apparatus
EP0754653A3 (en) Process for press molding an optical element
SG70124A1 (en) Method for making thermoplastic resin pellets
EP0801320A4 (en) PLASTIC EYE LENSES WITH HIGH REFRACTING INDEX
HK1026394A1 (en) Process for preparing optical thermoplastic urethane resin lenses and lenses prepared thereby
AU5852498A (en) Process and device for producing blow-moulded plastic mouldings
HK1015318A1 (en) Method for manufacturing preforms and method for manufacturing and molding optical elements
AU676798B2 (en) Synthetic resin lens and process for producing the same
AU5245698A (en) Method and apparatus for making lenticular plastics
EP0457855A4 (en) Method for forming plastic optical quality spectacle
GB2299780B (en) Moulding process

Legal Events

Date Code Title Description
PF Patent in force
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20060417