FR2074252A5 - Extrusion moulding of cellular moulding - Google Patents

Extrusion moulding of cellular moulding

Info

Publication number
FR2074252A5
FR2074252A5 FR7046534A FR7046534A FR2074252A5 FR 2074252 A5 FR2074252 A5 FR 2074252A5 FR 7046534 A FR7046534 A FR 7046534A FR 7046534 A FR7046534 A FR 7046534A FR 2074252 A5 FR2074252 A5 FR 2074252A5
Authority
FR
France
Prior art keywords
moulding
cellular
mouldings
extrusion
rods
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
FR7046534A
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.)
Continental AG
Original Assignee
Continental Gummi Werke 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 Continental Gummi Werke AG filed Critical Continental Gummi Werke AG
Application granted granted Critical
Publication of FR2074252A5 publication Critical patent/FR2074252A5/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
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D23/00—Producing tubular articles
    • B29D23/001—Pipes; Pipe joints
    • 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

Abstract

Method comprises extruding expandable thermoplastic polymer through a continuous gap formed among head parts of many rods; the rods are situated in a die fixed to an extruder. Uniform thick cellular mouldings having improved mechanical strength can be produced. The cellular mouldings do not have continuous weld lines in their section. Good surface smoothness is also obtained.
FR7046534A 1969-12-31 1970-12-23 Extrusion moulding of cellular moulding Expired FR2074252A5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691965670 DE1965670A1 (en) 1969-12-31 1969-12-31 Process for the manufacture of hoses from rubber or rubber-like plastics

Publications (1)

Publication Number Publication Date
FR2074252A5 true FR2074252A5 (en) 1971-10-01

Family

ID=5755359

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7046534A Expired FR2074252A5 (en) 1969-12-31 1970-12-23 Extrusion moulding of cellular moulding

Country Status (2)

Country Link
DE (1) DE1965670A1 (en)
FR (1) FR2074252A5 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3415028A1 (en) * 1984-04-19 1985-10-31 Veritas Gummiwerke AG, 6460 Gelnhausen METHOD FOR PRODUCING VULCANIZED RUBBER TUBES
JPH064252B2 (en) * 1985-06-17 1994-01-19 株式会社明治ゴム化成 Hose continuous vulcanization method
JPH01271229A (en) * 1988-04-25 1989-10-30 Yokohama Rubber Co Ltd:The Manufacture of low-permeability hose
US4898703A (en) * 1989-04-07 1990-02-06 The Goodyear Tire & Rubber Company Utilization of polyester in place of lead for use as a sheathing material for curing long length hose
DE10162294B4 (en) * 2001-12-19 2004-07-15 Contitech Schlauch Gmbh Process for the production of elbow hoses

Also Published As

Publication number Publication date
DE1965670A1 (en) 1971-07-15

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Legal Events

Date Code Title Description
ST Notification of lapse