CA2540100C - Moule permettant d'obtenir un cycle de moulage court - Google Patents

Moule permettant d'obtenir un cycle de moulage court Download PDF

Info

Publication number: CA2540100C
Authority: CA; Canada
Prior art keywords: mold; molding; optical quality; mold half; insert
Prior art date: 1994-06-10
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 - Fee Related

Application number

CA002540100A

Other languages

English (en)

Other versions

CA2540100A1 (fr

Inventor

Victor Lust

W. Anthony Martin

Kornelis Renkema

Wybren Van Der Meulen

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.)

Johnson and Johnson Vision Care Inc

Original Assignee

Johnson and Johnson Vision Care 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.)

1994-06-10

Filing date

1995-06-08

Publication date

2008-07-29

1994-06-10 Priority claimed from US08/257,794 external-priority patent/US5545366A/en

1995-06-08 Application filed by Johnson and Johnson Vision Care Inc filed Critical Johnson and Johnson Vision Care Inc

1995-12-11 Publication of CA2540100A1 publication Critical patent/CA2540100A1/fr

2008-07-29 Application granted granted Critical

2008-07-29 Publication of CA2540100C publication Critical patent/CA2540100C/fr

2015-06-08 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

Links

238000000465 moulding Methods 0.000 title claims abstract description 71
230000003287 optical effect Effects 0.000 claims abstract description 80
238000001816 cooling Methods 0.000 claims abstract description 43
239000002826 coolant Substances 0.000 claims abstract description 27
239000004793 Polystyrene Substances 0.000 claims abstract description 18
229920002223 polystyrene Polymers 0.000 claims abstract description 18
238000000034 method Methods 0.000 claims description 13
239000000463 material Substances 0.000 claims description 10
230000001351 cycling effect Effects 0.000 claims description 3
239000000017 hydrogel Substances 0.000 abstract description 7
230000000295 complement effect Effects 0.000 abstract description 6
229920001169 thermoplastic Polymers 0.000 description 27
239000004416 thermosoftening plastic Substances 0.000 description 26
238000013461 design Methods 0.000 description 15
238000002347 injection Methods 0.000 description 11
239000007924 injection Substances 0.000 description 11
229920000642 polymer Polymers 0.000 description 11
239000000203 mixture Substances 0.000 description 10
238000006116 polymerization reaction Methods 0.000 description 8
108091092889 HOTTIP Proteins 0.000 description 7
238000004519 manufacturing process Methods 0.000 description 7
239000000155 melt Substances 0.000 description 7
230000009467 reduction Effects 0.000 description 5
238000013459 approach Methods 0.000 description 4
238000010276 construction Methods 0.000 description 4
238000007710 freezing Methods 0.000 description 4
230000008014 freezing Effects 0.000 description 4
239000012815 thermoplastic material Substances 0.000 description 4
LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
230000008901 benefit Effects 0.000 description 3
238000001125 extrusion Methods 0.000 description 3
239000000178 monomer Substances 0.000 description 3
239000002904 solvent Substances 0.000 description 3
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
WSSSPWUEQFSQQG-UHFFFAOYSA-N 4-methyl-1-pentene Chemical compound CC(C)CC=C WSSSPWUEQFSQQG-UHFFFAOYSA-N 0.000 description 2
KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
230000015572 biosynthetic process Effects 0.000 description 2
238000005755 formation reaction Methods 0.000 description 2
210000003128 head Anatomy 0.000 description 2
239000004033 plastic Substances 0.000 description 2
229920003023 plastic Polymers 0.000 description 2
-1 polyethylene Polymers 0.000 description 2
230000008569 process Effects 0.000 description 2
239000011877 solvent mixture Substances 0.000 description 2
230000007704 transition Effects 0.000 description 2
108091064702 1 family Proteins 0.000 description 1
NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
239000004952 Polyamide Substances 0.000 description 1
239000004698 Polyethylene Substances 0.000 description 1
239000004743 Polypropylene Substances 0.000 description 1
229910000831 Steel Inorganic materials 0.000 description 1
150000001252 acrylic acid derivatives Chemical class 0.000 description 1
229920001577 copolymer Polymers 0.000 description 1
210000004087 cornea Anatomy 0.000 description 1
239000012530 fluid Substances 0.000 description 1
239000003112 inhibitor Substances 0.000 description 1
238000001746 injection moulding Methods 0.000 description 1
239000011159 matrix material Substances 0.000 description 1
229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
229920002239 polyacrylonitrile Polymers 0.000 description 1
229920002647 polyamide Polymers 0.000 description 1
239000004417 polycarbonate Substances 0.000 description 1
229920000515 polycarbonate Polymers 0.000 description 1
229920000728 polyester Polymers 0.000 description 1
229920000573 polyethylene Polymers 0.000 description 1
239000004926 polymethyl methacrylate Substances 0.000 description 1
229920001155 polypropylene Polymers 0.000 description 1
239000004800 polyvinyl chloride Substances 0.000 description 1
238000012545 processing Methods 0.000 description 1
230000005855 radiation Effects 0.000 description 1
238000000518 rheometry Methods 0.000 description 1
238000006748 scratching Methods 0.000 description 1
230000002393 scratching effect Effects 0.000 description 1
239000000243 solution Substances 0.000 description 1
239000010959 steel Substances 0.000 description 1
239000002344 surface layer Substances 0.000 description 1
230000009897 systematic effect Effects 0.000 description 1
238000012546 transfer Methods 0.000 description 1
238000013022 venting Methods 0.000 description 1

Landscapes

Moulds For Moulding Plastics Or The Like (AREA)

CA002540100A 1994-06-10 1995-06-08 Moule permettant d'obtenir un cycle de moulage court Expired - Fee Related CA2540100C (fr)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
US08/257,794		1994-06-10
US08/257,794 US5545366A (en)	1994-06-10	1994-06-10	Molding arrangement to achieve short mold cycle time and method of molding
CA002151327A CA2151327C (fr)	1994-06-10	1995-06-08	Moule permettant d'obtenir un cycle de moulage court

Related Parent Applications (1)

Application Number	Title	Priority Date	Filing Date
CA002151327A Division CA2151327C (fr)	1994-06-10	1995-06-08	Moule permettant d'obtenir un cycle de moulage court

Publications (2)

Publication Number	Publication Date
CA2540100A1 CA2540100A1 (fr)	1995-12-11
CA2540100C true CA2540100C (fr)	2008-07-29

Family

ID=36283210

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA002540100A Expired - Fee Related CA2540100C (fr)	1994-06-10	1995-06-08	Moule permettant d'obtenir un cycle de moulage court

Country Status (1)

Country	Link
CA (1)	CA2540100C (fr)

1995
- 1995-06-08 CA CA002540100A patent/CA2540100C/fr not_active Expired - Fee Related

Also Published As

Publication number	Publication date
CA2540100A1 (fr)	1995-12-11

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Legal Events

Date	Code	Title	Description
2006-03-20	EEER	Examination request
2014-07-22	MKLA	Lapsed	Effective date: 20140610