GB1010389A - Improvements in the manufacture of hollow articles by dip moulding - Google Patents

Improvements in the manufacture of hollow articles by dip moulding

Info

Publication number
GB1010389A
GB1010389A GB1948563A GB1948563A GB1010389A GB 1010389 A GB1010389 A GB 1010389A GB 1948563 A GB1948563 A GB 1948563A GB 1948563 A GB1948563 A GB 1948563A GB 1010389 A GB1010389 A GB 1010389A
Authority
GB
United Kingdom
Prior art keywords
former
heating
gelling
oil
temperature
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
GB1948563A
Inventor
Stanley Alan Spouse
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.)
Veedip Ltd
Original Assignee
Veedip 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
Application filed by Veedip Ltd filed Critical Veedip Ltd
Priority to GB1948563A priority Critical patent/GB1010389A/en
Publication of GB1010389A publication Critical patent/GB1010389A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulding By Coating Moulds (AREA)

Abstract

1,010,389. Formers or cores for use in dipmoulding. VEEDIP Ltd. Aug. 14, 1964 [May 16, 1963], No. 19485/63. Heading B5A. A former or core for use in dip-moulding is provided internally with heating means which are such that the surface temperature of the former may be substantially uniformly raised at a rate of at least 2‹ C. and preferably at 10‹ C. per second or higher. The mouldable material may be natural or synthetic rubber or synthetic plastics, in particular, P.V.C. in paste form. The heating means may be electrical, but are preferably those utilizing the circulation of hot oil, e.g. silicone oil. The heating may be effected as soon as the former has been removed from the dipping bath, although heating may begin while the former is immersed to its full extent provided that the temperature does not exceed the gelation temperature of the material. The former may be cooled by circulation of cold oil. In a process according to the invention the surface temperature of the former is raised, after removal from the tank, such that pregelling occurs in less than one minute and complete gelling within a further four minutes and preferably such that pre-gelling occurs in less than 0À25 minutes and complete gelling within a total time of one minute. Specific examples concern the manufacture of lined or unlined gloves and the formers used may be of metal, e.g. aluminium, each having an inlet oil pipe which terminates in a perforated head within the palm or is branched to extend into the fingers and thumb.
GB1948563A 1963-05-16 1963-05-16 Improvements in the manufacture of hollow articles by dip moulding Expired GB1010389A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1948563A GB1010389A (en) 1963-05-16 1963-05-16 Improvements in the manufacture of hollow articles by dip moulding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1948563A GB1010389A (en) 1963-05-16 1963-05-16 Improvements in the manufacture of hollow articles by dip moulding

Publications (1)

Publication Number Publication Date
GB1010389A true GB1010389A (en) 1965-11-17

Family

ID=10130149

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1948563A Expired GB1010389A (en) 1963-05-16 1963-05-16 Improvements in the manufacture of hollow articles by dip moulding

Country Status (1)

Country Link
GB (1) GB1010389A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3617588A (en) * 1969-06-16 1971-11-02 Dow Chemical Co Dip-coating process for preparing cellulose ether capsule shells

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3617588A (en) * 1969-06-16 1971-11-02 Dow Chemical Co Dip-coating process for preparing cellulose ether capsule shells

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