GB9807763D0 - Method and apparatus for forming elongate ptfe material and ptfe material particularly dental floss - Google Patents

Method and apparatus for forming elongate ptfe material and ptfe material particularly dental floss

Info

Publication number
GB9807763D0
GB9807763D0 GBGB9807763.9A GB9807763A GB9807763D0 GB 9807763 D0 GB9807763 D0 GB 9807763D0 GB 9807763 A GB9807763 A GB 9807763A GB 9807763 D0 GB9807763 D0 GB 9807763D0
Authority
GB
United Kingdom
Prior art keywords
ptfe material
dental floss
forming elongate
particularly dental
material particularly
Prior art date
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.)
Granted
Application number
GBGB9807763.9A
Other versions
GB2323538A (en
GB2323538B (en
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.)
Ranir Ltd
Original Assignee
Westone Products Ltd
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 GB9419859A external-priority patent/GB9419859D0/en
Application filed by Westone Products Ltd filed Critical Westone Products Ltd
Priority to GB9807763A priority Critical patent/GB2323538B/en
Publication of GB9807763D0 publication Critical patent/GB9807763D0/en
Publication of GB2323538A publication Critical patent/GB2323538A/en
Application granted granted Critical
Publication of GB2323538B publication Critical patent/GB2323538B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
    • B29C55/04—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique
    • B29C55/06—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique parallel with the direction of feed
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C15/00—Devices for cleaning between the teeth
    • A61C15/04—Dental floss; Floss holders
    • A61C15/041—Dental floss
    • 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
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
    • B29C55/023—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets using multilayered plates or sheets
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • 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
    • B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
    • B29K2027/12—Use of polyvinylhalogenides or derivatives thereof as moulding material containing fluorine
    • B29K2027/18—PTFE, i.e. polytetrafluorethene, e.g. ePTFE, i.e. expanded polytetrafluorethene

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
GB9807763A 1994-10-03 1995-10-02 PTFE dental floss and suture Expired - Fee Related GB2323538B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9807763A GB2323538B (en) 1994-10-03 1995-10-02 PTFE dental floss and suture

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9419859A GB9419859D0 (en) 1994-10-03 1994-10-03 Method and apparatus for forming elongate PTFE material and PTFE material particularly dental floss
GB9706339A GB2308827B (en) 1994-10-03 1995-10-02 Method and apparatus for forming elongate PTFE material and PTFE material particularly dental floss
GB9807763A GB2323538B (en) 1994-10-03 1995-10-02 PTFE dental floss and suture

Publications (3)

Publication Number Publication Date
GB9807763D0 true GB9807763D0 (en) 1998-06-10
GB2323538A GB2323538A (en) 1998-09-30
GB2323538B GB2323538B (en) 1999-02-24

Family

ID=26305724

Family Applications (2)

Application Number Title Priority Date Filing Date
GB9706339A Revoked GB2308827B (en) 1994-10-03 1995-10-02 Method and apparatus for forming elongate PTFE material and PTFE material particularly dental floss
GB9807763A Expired - Fee Related GB2323538B (en) 1994-10-03 1995-10-02 PTFE dental floss and suture

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB9706339A Revoked GB2308827B (en) 1994-10-03 1995-10-02 Method and apparatus for forming elongate PTFE material and PTFE material particularly dental floss

Country Status (1)

Country Link
GB (2) GB2308827B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2415906A (en) * 2004-06-16 2006-01-11 Ian Max Dental floss

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE392582B (en) * 1970-05-21 1977-04-04 Gore & Ass PROCEDURE FOR THE PREPARATION OF A POROST MATERIAL, BY EXPANDING AND STRETCHING A TETRAFLUORETENE POLYMER PREPARED IN AN PASTE-FORMING EXTENSION PROCEDURE
CH549454A (en) * 1971-04-28 1974-05-31 Polygest Ag PROCESS FOR MANUFACTURING A SHEET OR TAPE OF LOW DENSITY POLYTETRAFLUORAETHYLENE.
US4208745A (en) * 1976-01-21 1980-06-24 Sumitomo Electric Industries, Ltd. Vascular prostheses composed of polytetrafluoroethylene and process for their production
JPS603842B2 (en) * 1976-09-03 1985-01-31 住友電気工業株式会社 Asymmetric pore diameter thin film material and its manufacturing method
GB1541681A (en) * 1977-07-13 1979-03-07 Metal Box Co Ltd Drawn polymer articles
DE2947743C2 (en) * 1978-11-30 1983-12-08 Sumitomo Electric Industries, Ltd., Osaka Uniform, porous tubular structure made of polytetrafluoroethylene
AT370674B (en) * 1981-09-24 1983-04-25 Chemiefaser Lenzing Ag METHOD FOR PRODUCING MONOAXIAL STRETCHED FILMS FROM POLYTETRAFLUORAETHYLENE
US4817643A (en) * 1987-07-30 1989-04-04 Olson Mary Lou C Chinese finger cuff dental floss
US5033488A (en) * 1988-03-29 1991-07-23 Colgate-Palmolive Co. Dental floss

Also Published As

Publication number Publication date
GB2323538A (en) 1998-09-30
GB2308827A (en) 1997-07-09
GB9706339D0 (en) 1997-05-14
GB2323538B (en) 1999-02-24
GB2308827B (en) 1998-12-23

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20021002