FR2335335A1 - Bicycle inner tubes prodn. - by dipping a former into butyl rubber latex, then into natural or synthetic rubber latex and covulcanising composite rubber layer formed - Google Patents

Bicycle inner tubes prodn. - by dipping a former into butyl rubber latex, then into natural or synthetic rubber latex and covulcanising composite rubber layer formed

Info

Publication number
FR2335335A1
FR2335335A1 FR7538344A FR7538344A FR2335335A1 FR 2335335 A1 FR2335335 A1 FR 2335335A1 FR 7538344 A FR7538344 A FR 7538344A FR 7538344 A FR7538344 A FR 7538344A FR 2335335 A1 FR2335335 A1 FR 2335335A1
Authority
FR
France
Prior art keywords
dipping
former
rubber latex
natural
prodn
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.)
Withdrawn
Application number
FR7538344A
Other languages
French (fr)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7538344A priority Critical patent/FR2335335A1/en
Publication of FR2335335A1 publication Critical patent/FR2335335A1/en
Withdrawn legal-status Critical Current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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)

Abstract

Prodn. of dipped rubber tubes which are impermeable to air, esp. inner tubes for racing bicycles, comprises (a) dipping a hollow cylindrical former of suitable dimensions into an artificial butyl rubber latex contg. polyisoprene molecule, opt. using the multilayer technique, to give a vulcanisable polyisobutylene tube 0.03-0.25mm (esp. 0.05-0.15mm) thick. Process further comprises (b) dipping the former, covered with the predried polyisobutylene tube, into a natural or synthetic rubber latex (opt. after first dipping the tube in a bath of coagulating agent if the latex is not thermosensitised) to give a composite tube with an external covering of natural or synthetic rubber 0.20-0.60 mm thick; (c) gelling the composite tube, e.g. by circulating hot water inside the tubular former; and (d) simultaneously vulcanising the two layers of rubber. Process allows industrial scale prodn. of air-impermeable tubes with a single vulcanisation of the two layers of rubber.
FR7538344A 1975-12-15 1975-12-15 Bicycle inner tubes prodn. - by dipping a former into butyl rubber latex, then into natural or synthetic rubber latex and covulcanising composite rubber layer formed Withdrawn FR2335335A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7538344A FR2335335A1 (en) 1975-12-15 1975-12-15 Bicycle inner tubes prodn. - by dipping a former into butyl rubber latex, then into natural or synthetic rubber latex and covulcanising composite rubber layer formed

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7538344A FR2335335A1 (en) 1975-12-15 1975-12-15 Bicycle inner tubes prodn. - by dipping a former into butyl rubber latex, then into natural or synthetic rubber latex and covulcanising composite rubber layer formed

Publications (1)

Publication Number Publication Date
FR2335335A1 true FR2335335A1 (en) 1977-07-15

Family

ID=9163754

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7538344A Withdrawn FR2335335A1 (en) 1975-12-15 1975-12-15 Bicycle inner tubes prodn. - by dipping a former into butyl rubber latex, then into natural or synthetic rubber latex and covulcanising composite rubber layer formed

Country Status (1)

Country Link
FR (1) FR2335335A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2455977A1 (en) * 1979-05-07 1980-12-05 Tubi Lattice Spa Butyl rubber coated bicycle tyre inner tube mfr. - in which tubing lengths are coated, vulcanised and turned inside out
DE102017118314A1 (en) 2017-08-11 2019-02-14 Tpu Plus Gmbh Multilayer inner tube

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1052546A (en) *
US1969071A (en) * 1929-10-10 1934-08-07 Hood Rubber Co Inc Apparatus for the manufacture of rubber tubes
US2308724A (en) * 1940-05-29 1943-01-19 Int Latex Corp Rubber article
US2371883A (en) * 1943-11-06 1945-03-20 Gammeter Dipped synthetic rubber article and method of making
US2525272A (en) * 1947-02-05 1950-10-10 Goodrich Co B F Pen sac and method of making same
FR1145179A (en) * 1954-10-29 1957-10-23 Pirelli Method and apparatus for manufacturing tubular articles using latex
FR1440728A (en) * 1965-04-14 1966-06-03 Manuf Nationale Du Caoutchouc Protective glove
FR92518E (en) * 1967-04-26 1968-11-22 Manuf Nationale Du Caoutchouc Protective glove

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1052546A (en) *
US1969071A (en) * 1929-10-10 1934-08-07 Hood Rubber Co Inc Apparatus for the manufacture of rubber tubes
US2308724A (en) * 1940-05-29 1943-01-19 Int Latex Corp Rubber article
US2371883A (en) * 1943-11-06 1945-03-20 Gammeter Dipped synthetic rubber article and method of making
US2525272A (en) * 1947-02-05 1950-10-10 Goodrich Co B F Pen sac and method of making same
FR1145179A (en) * 1954-10-29 1957-10-23 Pirelli Method and apparatus for manufacturing tubular articles using latex
FR1440728A (en) * 1965-04-14 1966-06-03 Manuf Nationale Du Caoutchouc Protective glove
FR92518E (en) * 1967-04-26 1968-11-22 Manuf Nationale Du Caoutchouc Protective glove

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2455977A1 (en) * 1979-05-07 1980-12-05 Tubi Lattice Spa Butyl rubber coated bicycle tyre inner tube mfr. - in which tubing lengths are coated, vulcanised and turned inside out
DE102017118314A1 (en) 2017-08-11 2019-02-14 Tpu Plus Gmbh Multilayer inner tube
WO2019030320A2 (en) 2017-08-11 2019-02-14 Tpu Plus Gmbh Multilayer inner tube

Similar Documents

Publication Publication Date Title
DE3574946D1 (en) METHOD FOR PRODUCING HOLLOW BODIES FROM THERMOPLASTIC PLASTIC.
ATA319671A (en) METHOD FOR PRODUCING A COMPOSITE MATERIAL BASED ON VULCANIZED ELASTOMERS
YU39184B (en) Process for manufacture of two-or multilayer articles, made of a thermoplastic material impermeable to gases, vapours or odours, by means of co-extrusion of at least two different thermoplastic polyers one of which is polyvinyl alcohol
ES8102512A1 (en) Method for the manufacture of a cycle or auto-cycle wheel rim
ATE18155T1 (en) THERMOPLASTIC ARTICLES AND METHOD AND APPARATUS FOR THEIR MANUFACTURE.
AT311069B (en) Process for the production of a composite body
ATA287570A (en) METHOD OF MANUFACTURING A TUBULAR HOLLOW BODY
FR2335335A1 (en) Bicycle inner tubes prodn. - by dipping a former into butyl rubber latex, then into natural or synthetic rubber latex and covulcanising composite rubber layer formed
ATE46651T1 (en) DEVICE AND METHOD FOR EXTRUDING PLASTIC PIPES WITH MULTI-LAYER WALLS.
SE8603549D0 (en) PROCEDURES AND PROCEDURES FOR RECOVERY OF THERMAL INSULATED PIPE
ES421890A1 (en) Multi-layer tubular film especially for use as a sausage casing for cooking and scalding sausages
AT335240B (en) METHOD OF MANUFACTURING REINFORCED PRESSURE HOSE
DE3779134D1 (en) METHOD AND DEVICE FOR PRODUCING RIBBED TUBES.
JPS5346380A (en) Process and apparatus for making hollow tubing * especially packing tubes of laminated composite material
JPS57103822A (en) Manufacturing method and apparatus of tubular container body
AT347607B (en) METHOD FOR PRODUCING A NEW PROSTAGLANDINE
JPS5628602A (en) Production of liquid separating pipe
AT290370B (en) Process for the production of a composite body
FR2227119A1 (en) Moulded rubber profiled pipes - forming central hollow core by introduce. of pressure medium, for use in motor vehicles
JPS6477523A (en) Manufacture of high pressure rubber hose
ES257863A1 (en) A procedure for molding tubular plastic pieces, special application for surgical and clinical uses (Machine-translation by Google Translate, not legally binding)
DE2107765B2 (en) Medical pressure arm cuff bag - is moulded in one piece with its tubes by a dipping process
ATA747172A (en) METHOD FOR PRODUCING A FLAT MULTI-LAYER COMPOSITE MATERIAL
FR2122346A2 (en) Thin reinforced synthetic leather moulding prodn - by prefilling mould with melt or paste contg volatile plasticizers
ES413392A1 (en) Manufacture of hose

Legal Events

Date Code Title Description
ST Notification of lapse