HK194096A - Method for molding saturated crystalline polyesters and molding equipment therefor - Google Patents

Method for molding saturated crystalline polyesters and molding equipment therefor

Info

Publication number
HK194096A
HK194096A HK194096A HK194096A HK194096A HK 194096 A HK194096 A HK 194096A HK 194096 A HK194096 A HK 194096A HK 194096 A HK194096 A HK 194096A HK 194096 A HK194096 A HK 194096A
Authority
HK
Hong Kong
Prior art keywords
molding
saturated crystalline
crystalline polyesters
equipment therefor
resin
Prior art date
Application number
HK194096A
Other languages
English (en)
Inventor
Hiroji Niimi
Takashi Satake
Kunio Tomita
Original Assignee
Mitsui Petrochemical Ind
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
Priority claimed from JP63321162A external-priority patent/JP2625187B2/ja
Priority claimed from JP63321161A external-priority patent/JP2625186B2/ja
Priority claimed from JP63321159A external-priority patent/JP2625184B2/ja
Priority claimed from JP63321160A external-priority patent/JP2625185B2/ja
Priority claimed from JP63321163A external-priority patent/JPH02165914A/ja
Application filed by Mitsui Petrochemical Ind filed Critical Mitsui Petrochemical Ind
Publication of HK194096A publication Critical patent/HK194096A/xx

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B13/00Conditioning or physical treatment of the material to be shaped
    • B29B13/06Conditioning or physical treatment of the material to be shaped by drying
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B13/00Conditioning or physical treatment of the material to be shaped
    • B29B13/02Conditioning or physical treatment of the material to be shaped by heating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C31/00Handling, e.g. feeding of the material to be shaped, storage of plastics material before moulding; Automation, i.e. automated handling lines in plastics processing plants, e.g. using manipulators or robots
    • B29C31/04Feeding of the material to be moulded, e.g. into a mould cavity
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/0001Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor characterised by the choice of material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/18Feeding the material into the injection moulding apparatus, i.e. feeding the non-plastified material into the injection unit
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/36Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/45Axially movable screws
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C2045/0096Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor drying the moulding material before injection, e.g. by heating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/285Feeding the extrusion material to the extruder
    • B29C48/288Feeding the extrusion material to the extruder in solid form, e.g. powder or granules
    • B29C48/2886Feeding the extrusion material to the extruder in solid form, e.g. powder or granules of fibrous, filamentary or filling materials, e.g. thin fibrous reinforcements or fillers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/285Feeding the extrusion material to the extruder
    • B29C48/29Feeding the extrusion material to the extruder in liquid form
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING 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
    • B29K2067/00Use of polyesters or derivatives thereof, as moulding material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING 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
    • B29K2105/00Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/0079Liquid crystals
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING 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
    • B29K2105/00Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/12Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/65Processes of preheating prior to molding
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/90Direct application of fluid pressure differential to shape, reshape, i.e. distort, or sustain an article or preform and heat-setting, i.e. crystallizing of stretched or molecularly oriented portion thereof
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/90Direct application of fluid pressure differential to shape, reshape, i.e. distort, or sustain an article or preform and heat-setting, i.e. crystallizing of stretched or molecularly oriented portion thereof
    • Y10S264/904Maintaining article in fixed shape during heat-setting
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/907Direct application of fluid pressure differential to shape, reshape, i.e. distort, or sustain an article or preform and crystallizing of nonstretched or molecularly unoriented portion thereof
    • Y10S264/908Crystallizing of neck portion of hollow article or hollow preform
HK194096A 1988-12-20 1996-10-24 Method for molding saturated crystalline polyesters and molding equipment therefor HK194096A (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP63321162A JP2625187B2 (ja) 1988-12-20 1988-12-20 飽和結晶性ポリエステルの成形装置
JP63321161A JP2625186B2 (ja) 1988-12-20 1988-12-20 飽和結晶性ポリエステルの成形装置
JP63321159A JP2625184B2 (ja) 1988-12-20 1988-12-20 飽和結晶性ポリエステルの成形方法
JP63321160A JP2625185B2 (ja) 1988-12-20 1988-12-20 飽和結晶性ポリエステルの成形方法
JP63321163A JPH02165914A (ja) 1988-12-20 1988-12-20 飽和結晶性ポリエステルの成形装置

Publications (1)

Publication Number Publication Date
HK194096A true HK194096A (en) 1996-11-01

Family

ID=27531113

Family Applications (1)

Application Number Title Priority Date Filing Date
HK194096A HK194096A (en) 1988-12-20 1996-10-24 Method for molding saturated crystalline polyesters and molding equipment therefor

Country Status (9)

Country Link
US (1) US5034177A (fr)
EP (1) EP0375405B1 (fr)
KR (1) KR920010136B1 (fr)
AT (1) ATE134558T1 (fr)
CA (1) CA2005995C (fr)
DE (1) DE68925804T2 (fr)
ES (1) ES2086321T3 (fr)
HK (1) HK194096A (fr)
SG (1) SG42317A1 (fr)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4030964A1 (de) * 1990-10-01 1992-04-02 Happich Gmbh Gebr Verfahren zum herstellen eines kunststofformteils
DE4110135A1 (de) * 1991-03-27 1992-10-01 Windmoeller & Hoelscher Verfahren und vorrichtung zur bestimmung der von einem extruder aus einem aufgabebehaelter ueber die zeit abgezogenen menge
US5443378A (en) * 1994-07-11 1995-08-22 Ferromatik Milacron Maschinenbau Gmbh Apparatus for the sandwich method of injection molding
AR002773A1 (es) 1995-07-07 1998-04-29 Continental Pet Technologies Metodo para el moldeado por inyeccion de un articulo plastico y aparato para llevarlo a cabo.
US6217818B1 (en) * 1995-07-07 2001-04-17 Continental Pet Technologies, Inc. Method of making preform and container with crystallized neck finish
US5868991A (en) * 1996-07-26 1999-02-09 Kimberly-Clark Worldwide, Inc. Method for low temperature injection molding of hydrodisintegratable compositions
US6090337A (en) 1997-07-30 2000-07-18 Plastipak Packaging, Inc. Method for making multi-layer plastic preform for blow molding
AU6221399A (en) * 1998-10-21 2000-05-08 Devro Plc Cellulose extrusion
DE10012532A1 (de) * 2000-03-15 2001-09-27 Remaplan Anlagenbau Gmbh Verfahren zum Spritzpressen von Kunststoffmischungen, insbesondere Kunststoffmischungen aufweisend mindestens eine thermoplastische Plyesterkomponente und mindestens eine Modifierkomponente, insbesondere deren Recyclate sowie Vorrichtung zum Durchführen des Verfahrens
KR101159845B1 (ko) * 2004-12-29 2012-06-25 에스케이케미칼주식회사 폴리에스테르 수지 및 이의 제조방법
DE102005053690A1 (de) * 2005-11-10 2007-05-31 Airbus Deutschland Gmbh Werkzeug, Anordnung und Verfahren zum Herstellen eines Bauteils, Bauteil
ES2293861B1 (es) * 2007-10-04 2009-04-01 Plasticos Hidrosolubles, S.L. Procedimiento para la inyeccion de piezas de polietenol.
ES2351839B1 (es) * 2007-10-04 2011-09-16 Plasticos Hidrosolubles, S.L. Procedimiento para la inyección de piezas de polietanol y piezas así obtenidas.
JP5213492B2 (ja) * 2008-03-25 2013-06-19 Jx日鉱日石エネルギー株式会社 硫黄固化体の製造方法及び製造装置
CN103619556B (zh) * 2011-06-24 2016-12-07 本田技研工业株式会社 注塑成形方法及其装置
CN110465223B (zh) * 2019-09-06 2021-09-21 韩山师范学院 一次性可降解航空餐勺生产装置
CN111421759A (zh) * 2020-04-23 2020-07-17 山西一饭科技有限公司 一种注塑合模一体化设备
CN112192782A (zh) * 2020-10-12 2021-01-08 王永成 一种塑料生产用注塑原料干燥装置

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2309729A (en) * 1938-09-30 1943-02-02 Du Pont Molding of polymeric materials
US2442368A (en) * 1945-05-04 1948-06-01 Prophylactic Brush Co Method of making plastic articles by injection molding
US2831214A (en) * 1956-01-12 1958-04-22 Foster Grant Co Inc Injection molding apparatus
JPS48101450A (fr) * 1972-04-04 1973-12-20
DE2424364B2 (de) * 1974-05-16 1980-03-06 Ikegai Tekko K.K., Tokio Verfahren und Vorrichtung zum vernetzenden Formpressen von hochmolekularen Stoffen
US4022863A (en) * 1975-06-04 1977-05-10 Caristrap Corporation Polymer plastic strapping from polyethylene terephthalate
DE2638840C2 (de) * 1975-08-30 1983-12-22 Chang Shao Shizuoka Chi Verfahren zur Herstellung von Produkten aus Polyäthylenterephthalat
JPS5739937A (en) * 1980-08-22 1982-03-05 Toray Ind Inc Manufacture of chippy material for injection molding
JPS5841182B2 (ja) * 1980-12-23 1983-09-10 東洋製罐株式会社 熱間充填可能なプラスチツク容器の製法
US4501713A (en) * 1983-06-15 1985-02-26 Phillips Petroleum Company Stabilizing melt crystallization temperature in arylene sulfide polymer heat treatment
DE3417316C2 (de) * 1984-05-10 1994-02-10 Klaus Kalwar Vorrichtung zum Extrudieren einer aus thermoplastischen Kunststoffen bestehenden Folienbahn
JPS61184538A (ja) * 1985-02-12 1986-08-18 Konishiroku Photo Ind Co Ltd 写真用反射支持体の製造方法
FR2599665B1 (fr) * 1986-06-06 1988-11-04 Rhone Poulenc Fibres Procede et dispositif de regeneration de dec hets a base de polymeres fusibles
CA1285113C (fr) * 1986-08-11 1991-06-25 John J. Granata Methode et dispositif de moulage par injection et soufflage de contenants pour animaux familiers
JPH0617014B2 (ja) * 1988-04-27 1994-03-09 石川島播磨重工業株式会社 押出機
US4867665A (en) * 1988-07-07 1989-09-19 Nakatani Kikai Kabushiki Kaisha Plastic material molding apparatus

Also Published As

Publication number Publication date
EP0375405A2 (fr) 1990-06-27
DE68925804D1 (de) 1996-04-04
CA2005995C (fr) 1994-03-22
EP0375405B1 (fr) 1996-02-28
ES2086321T3 (es) 1996-07-01
US5034177A (en) 1991-07-23
DE68925804T2 (de) 1997-02-06
CA2005995A1 (fr) 1990-06-20
EP0375405A3 (fr) 1991-07-31
KR900009241A (ko) 1990-07-02
KR920010136B1 (ko) 1992-11-16
ATE134558T1 (de) 1996-03-15
SG42317A1 (en) 1997-08-15

Similar Documents

Publication Publication Date Title
HK194096A (en) Method for molding saturated crystalline polyesters and molding equipment therefor
IL58549A (en) Method and apparatus for producing molded plastic articles
ATE155446T1 (de) Verfahren zum pressen von produkten sowie vorrichtung zum durchführen des verfahrens
DE69006079D1 (de) Gestufter Spritztopf zum Spritzgiessen.
EP0312049A3 (en) Process for producing synthetic resin molded articles
HK1041668A1 (zh) 芳香族聚酯類樹脂模內發泡成型體的製造方法
EP0293756A3 (fr) Procédé pour traiter des matières plastiques fondues
ATE130546T1 (de) Herstellung von spritzgussteilen aus thermoplastischen kunststoffen.
EP0953598A4 (fr) Procede pour recristalliser du diacetal dans une resine de polyolefine
ES481317A1 (es) Dispositivo de boquilla mejorado para el moldeo por inyec- cion, la extrusion u otro tratamiento de material sintetico.
GR3018923T3 (en) Method and apparatus for manufacturing of a container
EP0657503A3 (fr) Polyesters modifiés par le fluor ayant une processibilité améliorée.
ATE44493T1 (de) Verfahren und vorrichtung zum verstaerken des halses einer kunststoffflasche.
GB2126156B (en) A method of controlling the temperature of a parison during injection stretch-blow moulding
DE3160730D1 (en) Process for producing a moulded article from pulverulent to granular thermoplastic synthetics
JPS57201631A (en) Staturated polyester resin made bottle and manufacture thereof
JPS5688458A (en) Injection molding method and mold for producing crystalline polyethylene terephthalate molded product
EP0428756A4 (en) Method of producing lightweight foamed concrete
JPS6471723A (en) Method for elevating temperature of injection molding machine
GR3030145T3 (en) Process for the production of polyurea based articles.
GB9017870D0 (en) A mold for producing thermoplastic products by a blow molding process
SE8704203D0 (sv) Forfarande for styrning av plastmassans smelttemperatur vid framstellning av plastprodukter
JPS56151540A (en) Injection molding of polyester resin
IT1318357B1 (it) Procedimento per la fabbricazione di capsule di chiusura inpolietilentelenftalato per contenitori e capsule cosi' costruite.
IT1318328B1 (it) Procedimento per lo stampaggio a compressione ad alta velocita' diproduzione di oggetti che debbano preservare elevate caratteristiche

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: 20071220