GB1487965A - Method for increasing the hydrophilicity of a silicone rubber surface - Google Patents

Method for increasing the hydrophilicity of a silicone rubber surface

Info

Publication number
GB1487965A
GB1487965A GB4628574A GB4628574A GB1487965A GB 1487965 A GB1487965 A GB 1487965A GB 4628574 A GB4628574 A GB 4628574A GB 4628574 A GB4628574 A GB 4628574A GB 1487965 A GB1487965 A GB 1487965A
Authority
GB
United Kingdom
Prior art keywords
silicone rubber
glow discharge
water
oxygen
torr
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.)
Expired
Application number
GB4628574A
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.)
Agfa Gevaert AG
Original Assignee
Agfa Gevaert AG
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 Agfa Gevaert AG filed Critical Agfa Gevaert AG
Publication of GB1487965A publication Critical patent/GB1487965A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/12—Chemical modification
    • C08J7/123—Treatment by wave energy or particle radiation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2383/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
    • C08J2383/04—Polysiloxanes

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Eyeglasses (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

1487965 Rendering silicone rubber hydrophilic by glow discharge treatment. AGFAGEVAERT AG 25 Oct 1974 [25 Oct 1973] 46285/74 Addition to 1362939 Heading C3T The surface of a body of silica-filled silicone rubber is rendered hydrophilic by mounting it on an electrode of a gas glow discharge apparatus and subjecting the surface at a temperature not exceeding 60‹ C. to bombardment by ions and electrons produced by glow discharge through an atmosphere in the apparatus consisting substantially wholly of oxygen at 10<SP>-1</SP> to 10<SP>-3</SP> Torr, the kinetic energy of the oxygen ions being such as to create a surface layer on the body of SiO 2 from decomposed silicone rubber and exposed silica filler. The oxygen preferably contains 0À1-1% water vapour, and the treated surface may subsequently be treated with water or water vapour at 80‹ C. for 12 or more hours. In the Example a 2 cm. x 5 mm. disc of benzoylperoxide-cured silicone rubber is placed on one of two electrodes 25 cm. apart and subjected to a discharge of I mA/cm.<SP>2</SP> through O 2 at 10-1 Torr for 2 mins.; the disc is then boiled in water for 24 hours.
GB4628574A 1973-10-25 1974-10-25 Method for increasing the hydrophilicity of a silicone rubber surface Expired GB1487965A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732353495 DE2353495C3 (en) 1973-10-25 1973-10-25 Process for producing a hydrophilic surface on polysiloxane elastomers

Publications (1)

Publication Number Publication Date
GB1487965A true GB1487965A (en) 1977-10-05

Family

ID=5896398

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4628574A Expired GB1487965A (en) 1973-10-25 1974-10-25 Method for increasing the hydrophilicity of a silicone rubber surface

Country Status (9)

Country Link
JP (1) JPS5314276B2 (en)
AU (1) AU501069B2 (en)
BR (1) BR7408821D0 (en)
CA (1) CA1027515A (en)
DE (1) DE2353495C3 (en)
FR (1) FR2249112B1 (en)
GB (1) GB1487965A (en)
HK (1) HK42578A (en)
IT (1) IT1021897B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2174397A (en) * 1985-04-18 1986-11-05 Cambridge Contact Lens Technol Hard contact lenses and methods of manufacture

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56831A (en) * 1979-06-18 1981-01-07 Shin Etsu Chem Co Ltd Surface treatment of silicone resin molded product
DE3004685C2 (en) * 1980-02-08 1986-07-31 Titmus Eurocon Kontaktlinsen GmbH, 8750 Aschaffenburg Process for making contact lenses made of silicone rubber hydrophilic
FR2483310A1 (en) * 1980-05-29 1981-12-04 Fibar Ste Civile Immob TREATMENT PROCESS FOR MAKING HYDROPHILIC CONTACT LENSES HYDROPHILIC
JPS58128835A (en) * 1982-01-28 1983-08-01 Nok Corp Method of treating surface of molded rubber material
JP2763776B2 (en) * 1988-05-27 1998-06-11 日本原子力研究所 Manufacturing method of microporous contact lens
DE19946252A1 (en) * 1999-09-27 2001-04-05 Fraunhofer Ges Forschung Process for the production of self-organized structures on a substrate surface

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2174397A (en) * 1985-04-18 1986-11-05 Cambridge Contact Lens Technol Hard contact lenses and methods of manufacture

Also Published As

Publication number Publication date
FR2249112A1 (en) 1975-05-23
BR7408821D0 (en) 1975-09-16
IT1021897B (en) 1978-02-20
HK42578A (en) 1978-08-11
JPS5074676A (en) 1975-06-19
AU501069B2 (en) 1979-06-07
AU7407574A (en) 1976-04-15
CA1027515A (en) 1978-03-07
JPS5314276B2 (en) 1978-05-16
DE2353495B2 (en) 1976-04-08
DE2353495A1 (en) 1975-04-30
FR2249112B1 (en) 1978-08-11
DE2353495C3 (en) 1984-02-02

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Legal Events

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