FR2168384A1 - Moulding foamed rubber latex - by contacting with wax coated mould and heating to partly cure latex - Google Patents

Moulding foamed rubber latex - by contacting with wax coated mould and heating to partly cure latex

Info

Publication number
FR2168384A1
FR2168384A1 FR7301414A FR7301414A FR2168384A1 FR 2168384 A1 FR2168384 A1 FR 2168384A1 FR 7301414 A FR7301414 A FR 7301414A FR 7301414 A FR7301414 A FR 7301414A FR 2168384 A1 FR2168384 A1 FR 2168384A1
Authority
FR
France
Prior art keywords
latex
mould
foamed rubber
contacting
heating
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
FR7301414A
Other languages
French (fr)
Other versions
FR2168384B1 (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.)
Uniroyal Ltd Great Britain
Original Assignee
Uniroyal Ltd Great Britain
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 Uniroyal Ltd Great Britain filed Critical Uniroyal Ltd Great Britain
Publication of FR2168384A1 publication Critical patent/FR2168384A1/en
Application granted granted Critical
Publication of FR2168384B1 publication Critical patent/FR2168384B1/fr
Granted 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
    • B29C44/30—Expanding the moulding material between endless belts or rollers
    • B29C44/302—Expanding the moulding material in flexible endless moulds
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/56—Coatings, e.g. enameled or galvanised; Releasing, lubricating or separating agents
    • B29C33/60—Releasing, lubricating or separating agents
    • 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
    • B29C41/24—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 indefinite length
    • B29C41/28—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 indefinite length by depositing flowable material on an endless belt
    • 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)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Laminated Bodies (AREA)

Abstract

Moist, ungelled, foamed rubber latex with viscosity >=10,000 cP is moulded by (a) contacting the foam layer, before any skin has formed on its surface, with a wax coated mould having projections sepd. by a distance of >=0.31 cm. (b) at least partly curing the foam as it is in contact with the mould, while heating the mould and the foam to a temp. above the m.p. of the wax, (c) removing the mould from the foam layer when it is sufficiently coherent to retain its moulded shape, and (d) completing the cure of the foam layer. The latex contains a thickening agent. The moulded foam layer does not adhere to the mould. High quality moulded foamed rubber latex is obtd.
FR7301414A 1972-01-17 1973-01-16 Moulding foamed rubber latex - by contacting with wax coated mould and heating to partly cure latex Granted FR2168384A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB211172 1972-01-17

Publications (2)

Publication Number Publication Date
FR2168384A1 true FR2168384A1 (en) 1973-08-31
FR2168384B1 FR2168384B1 (en) 1975-04-04

Family

ID=9733814

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7301414A Granted FR2168384A1 (en) 1972-01-17 1973-01-16 Moulding foamed rubber latex - by contacting with wax coated mould and heating to partly cure latex

Country Status (6)

Country Link
BE (1) BE794050A (en)
DE (1) DE2302026A1 (en)
FR (1) FR2168384A1 (en)
IT (1) IT977613B (en)
LU (1) LU66836A1 (en)
NL (1) NL7300600A (en)

Also Published As

Publication number Publication date
NL7300600A (en) 1973-07-19
DE2302026A1 (en) 1973-07-26
FR2168384B1 (en) 1975-04-04
IT977613B (en) 1974-09-20
LU66836A1 (en) 1973-03-19
BE794050A (en) 1973-07-16

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Legal Events

Date Code Title Description
ST Notification of lapse