CS247723B1 - Method and device for monomeric compounds triturating in moulds for contact lenses centrifugal casting - Google Patents

Method and device for monomeric compounds triturating in moulds for contact lenses centrifugal casting Download PDF

Info

Publication number: CS247723B1
Authority: CS; Czechoslovakia
Prior art keywords: molds; frequency; container; tubular container; contact lenses
Prior art date: 1984-01-26

Application number

CS84590A

Other languages

Czech (cs)

English (en)

Inventor

Otto Wichterle

Jiri Vodnansky

Original Assignee

Otto Wichterle

Jiri Vodnansky

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.)

1984-01-26

Filing date

1984-01-26

Publication date

1987-01-15

1984-01-26 Application filed by Otto Wichterle, Jiri Vodnansky filed Critical Otto Wichterle

1984-01-26 Priority to CS84590A priority Critical patent/CS247723B1/cs

1985-01-14 Priority to US06/691,424 priority patent/US4722813A/en

1985-01-16 Priority to GB08501026A priority patent/GB2153291B/en

1985-01-25 Priority to FR8501041A priority patent/FR2558766B1/fr

1985-01-26 Priority to JP60013378A priority patent/JPS60210411A/ja

1987-01-15 Publication of CS247723B1 publication Critical patent/CS247723B1/cs

Links

238000000034 method Methods 0.000 title claims abstract description 13
238000009750 centrifugal casting Methods 0.000 title claims abstract description 6
150000001875 compounds Chemical class 0.000 title 1
239000000203 mixture Substances 0.000 claims abstract description 23
239000000178 monomer Substances 0.000 claims abstract description 20
238000003892 spreading Methods 0.000 claims abstract description 4
230000007480 spreading Effects 0.000 claims abstract description 4
230000007246 mechanism Effects 0.000 claims description 2
238000006116 polymerization reaction Methods 0.000 description 4
IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
238000000576 coating method Methods 0.000 description 2
230000000737 periodic effect Effects 0.000 description 2
230000008569 process Effects 0.000 description 2
239000010409 thin film Substances 0.000 description 2
238000009736 wetting Methods 0.000 description 2
230000008901 benefit Effects 0.000 description 1
238000005266 casting Methods 0.000 description 1
239000011248 coating agent Substances 0.000 description 1
238000010586 diagram Methods 0.000 description 1
238000009826 distribution Methods 0.000 description 1
230000000694 effects Effects 0.000 description 1
239000010408 film Substances 0.000 description 1
238000004519 manufacturing process Methods 0.000 description 1
230000005499 meniscus Effects 0.000 description 1
238000012986 modification Methods 0.000 description 1
230000004048 modification Effects 0.000 description 1
229910052757 nitrogen Inorganic materials 0.000 description 1
NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical class C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
238000003756 stirring Methods 0.000 description 1

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
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C41/04—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould
- B29C41/06—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould about two or more axes
- 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
- B29D11/00115—Production of contact lenses made by rotational casting
- 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
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C41/04—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould
- B29C41/042—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould by rotating a mould around its axis of symmetry
- B29C41/045—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould by rotating a mould around its axis of symmetry the axis being placed vertically, e.g. spin casting
- 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
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/0002—Condition, form or state of moulded material or of the material to be shaped monomers or prepolymers
- 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
- 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

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Health & Medical Sciences (AREA)
Manufacturing & Machinery (AREA)
Ophthalmology & Optometry (AREA)
Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Eyeglasses (AREA)

CS84590A 1984-01-26 1984-01-26 Method and device for monomeric compounds triturating in moulds for contact lenses centrifugal casting CS247723B1 (en)

Priority Applications (5)

Application Number	Priority Date	Filing Date	Title
CS84590A CS247723B1 (en)	1984-01-26	1984-01-26	Method and device for monomeric compounds triturating in moulds for contact lenses centrifugal casting
US06/691,424 US4722813A (en)	1984-01-26	1985-01-14	Method and apparatus for spreading monomer mixtures in molds for the centrifugal casting of contact lenses
GB08501026A GB2153291B (en)	1984-01-26	1985-01-16	Centrifugal casting of contact lenses
FR8501041A FR2558766B1 (fr)	1984-01-26	1985-01-25	Procede et equipement pour l'etalement de melanges de monomeres dans des moules en vue du moulage centrifuge de lentilles de contact
JP60013378A JPS60210411A (ja)	1984-01-26	1985-01-26	モノマ−混合体の遠心流し込み成形方法及びその装置

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CS84590A CS247723B1 (en)	1984-01-26	1984-01-26	Method and device for monomeric compounds triturating in moulds for contact lenses centrifugal casting

Publications (1)

Publication Number	Publication Date
CS247723B1 true CS247723B1 (en)	1987-01-15

Family

ID=5338256

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CS84590A CS247723B1 (en)	1984-01-26	1984-01-26	Method and device for monomeric compounds triturating in moulds for contact lenses centrifugal casting

Country Status (5)

Country	Link
US (1)	US4722813A (ja)
JP (1)	JPS60210411A (ja)
CS (1)	CS247723B1 (ja)
FR (1)	FR2558766B1 (ja)
GB (1)	GB2153291B (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CS272334B1 (en) *	1988-05-13	1991-01-15	Sulc Jiri	Method of lenses rotating casting and equipment for realization of this method
JP3651698B2 (ja) *	1995-04-28	2005-05-25	株式会社アサヒオプティカル	プラスチックレンズの製造方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4153349A (en) *	1961-12-27	1979-05-08	Npd Technologies, Inc.	Soft contact lens with thin edge
US3337662A (en) *	1963-10-10	1967-08-22	Allied Chem	Process for cavity wetting
US3652760A (en) *	1969-01-15	1972-03-28	Spheres Inc	Process for casting acrylic spheres
NL7406977A (en) *	1974-05-24	1974-09-25		Moulding appts for hollow thermoplastic articles mass prodn. - by sintering in oscillating, rotating, heat conducting mould bodies
SU933473A1 (ru) *	1980-06-23	1982-06-07	Львовский Ордена Ленина Политехнический Институт Им.Ленинского Комсомола	Способ изготовлени контактных линз центробежным формованием
US4424175A (en) *	1982-07-27	1984-01-03	Neefe Charles W	Spin casting
US4422984A (en) *	1982-09-13	1983-12-27	Neefe Charles W	Centrifugal casting of contact lenses
US4517139A (en) *	1983-05-02	1985-05-14	International Hydron Corporation	Device and method for centrifugally casting articles on a continuous basis
CS243055B1 (en) *	1983-05-23	1986-05-15	Otto Wichterle	Contact lenses production equipment

1984
- 1984-01-26 CS CS84590A patent/CS247723B1/cs unknown
1985
- 1985-01-14 US US06/691,424 patent/US4722813A/en not_active Expired - Lifetime
- 1985-01-16 GB GB08501026A patent/GB2153291B/en not_active Expired
- 1985-01-25 FR FR8501041A patent/FR2558766B1/fr not_active Expired
- 1985-01-26 JP JP60013378A patent/JPS60210411A/ja active Granted

Also Published As

Publication number	Publication date
GB8501026D0 (en)	1985-02-20
GB2153291A (en)	1985-08-21
FR2558766B1 (fr)	1988-05-27
US4722813A (en)	1988-02-02
FR2558766A1 (fr)	1985-08-02
GB2153291B (en)	1987-07-08
JPS60210411A (ja)	1985-10-22
JPH0441888B2 (ja)	1992-07-09

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US3703348A (en)	1972-11-21	Apparatus for molding hollow objects from thermoplastic materials
US4431046A (en)	1984-02-14	Automated low-pressure casting mechanism and method
US4766771A (en)	1988-08-30	Shaking apparatus
US3590905A (en)	1971-07-06	Apparatus for forming ceramic shell molds
US4722813A (en)	1988-02-02	Method and apparatus for spreading monomer mixtures in molds for the centrifugal casting of contact lenses
US5315905A (en)	1994-05-31	Method and apparatus for shaping antiperspirant sticks and similar products
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US4519762A (en)	1985-05-28	Multi-mold molding apparatus for producing a molded skin product
CS272334B1 (en)	1991-01-15	Method of lenses rotating casting and equipment for realization of this method
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US3973889A (en)	1976-08-10	Decorative rod making equipment
SU572188A3 (ru)	1977-09-05	Устройство дл поворота заливочного ковша центробежной машины
US2297459A (en)	1942-09-29	Apparatus for producing articles from artificial materials
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KR0183456B1 (ko)	1999-05-15	아라미드 펄프제조용 회분식 배향시스템
SU418333A1 (ja)	1974-03-05
SU791457A1 (ru)	1980-12-30	Устройство дл заливки литейных форм
SU859169A1 (ru)	1981-08-30	Установка дл отливки изделий
US4217124A (en)	1980-08-12	Method of forming conoid surfaces
US1492738A (en)	1924-05-06	Apparatus for making bodies in the form of shells from plastic chocolate or the like
SU804473A1 (ru)	1981-02-15	Способ изготовлени многоцветныхиздЕлий ТипА СТЕРжНЕй C чЕТКОйгРАНицЕй МЕжду МАТЕРиАлАМи РАзНОгОцВЕТА
US84593A (en)	1868-12-01	Improved apparatus tor moulding- pots and crucibles
JPH11291022A (ja)	1999-10-26	傾動注湯方法及びその装置