GB1015445A - Improvements in or relating to latex dipping - Google Patents

Improvements in or relating to latex dipping

Info

Publication number
GB1015445A
GB1015445A GB23805/64A GB2380564A GB1015445A GB 1015445 A GB1015445 A GB 1015445A GB 23805/64 A GB23805/64 A GB 23805/64A GB 2380564 A GB2380564 A GB 2380564A GB 1015445 A GB1015445 A GB 1015445A
Authority
GB
United Kingdom
Prior art keywords
formers
former
contact
latex
balloons
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
GB23805/64A
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.)
Oak Rubber Co
Original Assignee
Oak Rubber Co
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 Oak Rubber Co filed Critical Oak Rubber Co
Publication of GB1015445A publication Critical patent/GB1015445A/en
Expired 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
    • 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
    • B29C41/14—Dipping a core
    • 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
    • B29K2021/00—Use of unspecified rubbers as moulding material
    • 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
    • B29K2105/0058—Liquid or visquous
    • B29K2105/0064—Latex, emulsion or dispersion

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulding By Coating Moulds (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

1,015,445. Dip-moulding balloons and the like. OAK RUBBER CO. June 9, 1964 [July 24, 1963], No. 23805/64. Heading B5A. In a process where articles such as balloons are formed by dip moulding, an electrical potential obtained from a D.C. source or by an electrostatic method is formed between the dipping tank 7 and each former 1 at the instant when the latter enters latex 8, thereby, according to the invention, preventing the formation of blisters at the point of contact. In the embodiment shown, the formers 1 are pivoted to a rod 12 moved by a conveyor 14, and the formers move into and out of tank 7 by cooperation of a cam track 16 and rotatable sleeves 15. The sleeves make appropriately timed contact with contact-areas 19. The formers may be of metal such as aluminium or of non-conductive material such as glass, porcelain, wood or plastics in which case a conductor is passed through the former to a metal tip positioned thereon at the point of initial contact with the latex. Alternatively a plastics former may have a thin metal coating. In a further embodiment, Fig. 1 (not shown), a number of formers are attached to a manually movable support. The applied voltage may vary between 5 and 1000 V. depending on the weight of the former, e.g. 350-400 V. for formers having a weight range 4 ozs.-1 pound. The latex may be of natural or synthetic rubber and a preferred coagulant is a solution of calcium nitrate in alcohol. Detailed examples are given.
GB23805/64A 1963-07-24 1964-06-09 Improvements in or relating to latex dipping Expired GB1015445A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US297295A US3402239A (en) 1963-07-24 1963-07-24 Process for latex dipping

Publications (1)

Publication Number Publication Date
GB1015445A true GB1015445A (en) 1965-12-31

Family

ID=23145707

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23805/64A Expired GB1015445A (en) 1963-07-24 1964-06-09 Improvements in or relating to latex dipping

Country Status (5)

Country Link
US (1) US3402239A (en)
BE (1) BE650309A (en)
DE (1) DE1273805B (en)
GB (1) GB1015445A (en)
NL (1) NL6407290A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5116551A (en) * 1987-05-07 1992-05-26 Davidson Roderick I Method and apparatus for producing an article by microwave heating
JP2504631B2 (en) * 1991-04-30 1996-06-05 住友ゴム工業株式会社 Glove manufacturing method
DE202017002515U1 (en) 2017-05-04 2017-05-29 Ulrik von Kotzebue Device for the production of goods made of rubber and / or flexible films
DE102017004528B4 (en) * 2017-05-04 2020-09-17 Ulrik von Kotzebue Device for manufacturing goods from rubber and / or flexible films
DE202017002516U1 (en) 2017-05-04 2017-05-17 Ulrik von Kotzebue Device for the production of goods made of rubber and / or flexible films

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1193883A (en) * 1916-08-08 Method oe producing articles of a vttlcamtzable plastic
US2492000A (en) * 1946-06-15 1949-12-20 F B Killian & Company Method of making thin rubberlike films
US3200057A (en) * 1960-12-27 1965-08-10 Ford Motor Co Electrophoretic coating process
BE640626A (en) * 1961-08-23

Also Published As

Publication number Publication date
BE650309A (en) 1964-11-03
US3402239A (en) 1968-09-17
NL6407290A (en) 1965-01-25
DE1273805B (en) 1968-07-25

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