FR2146263A1 - Smooth surfaced foamed mouldings - by coating the mould with ptfe - Google Patents

Smooth surfaced foamed mouldings - by coating the mould with ptfe

Info

Publication number
FR2146263A1
FR2146263A1 FR7225303A FR7225303A FR2146263A1 FR 2146263 A1 FR2146263 A1 FR 2146263A1 FR 7225303 A FR7225303 A FR 7225303A FR 7225303 A FR7225303 A FR 7225303A FR 2146263 A1 FR2146263 A1 FR 2146263A1
Authority
FR
France
Prior art keywords
mould
ptfe
coating
smooth surfaced
mouldings
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Withdrawn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
FR7225303A
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
Publication of FR2146263A1 publication Critical patent/FR2146263A1/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Withdrawn legal-status Critical Current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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/37—Mould cavity walls, i.e. the inner surface forming the mould cavity, e.g. linings
    • 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
    • B29C33/62—Releasing, lubricating or separating agents based on polymers or oligomers

Abstract

The mouldings are made by the extrusion moulding process and come out of the mould quite easily without the use of special release agents. The surface is sufficiently smooth and does not have to be reworked. The mould and feed lines are coated with PTFE or a similar material prior to use.
FR7225303A 1971-07-21 1972-07-12 Smooth surfaced foamed mouldings - by coating the mould with ptfe Withdrawn FR2146263A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1071271A CH533003A (en) 1971-07-21 1971-07-21 Process for the production of smooth plastic molded parts by injection molding, a mold suitable for carrying out the process and a molded part produced by the process

Publications (1)

Publication Number Publication Date
FR2146263A1 true FR2146263A1 (en) 1973-03-02

Family

ID=4366022

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7225303A Withdrawn FR2146263A1 (en) 1971-07-21 1972-07-12 Smooth surfaced foamed mouldings - by coating the mould with ptfe

Country Status (4)

Country Link
CH (1) CH533003A (en)
DE (1) DE2230404A1 (en)
FR (1) FR2146263A1 (en)
IT (1) IT962841B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58203044A (en) * 1982-05-21 1983-11-26 株式会社　潤工社 Fluoroplastic shape and its manufacture
JP3382281B2 (en) * 1993-01-22 2003-03-04 株式会社太洋工作所 Mold for thermoplastic resin injection molding
DE19908936C2 (en) * 1999-03-02 2002-10-31 Feinwerktechnik Wetzlar Gmbh Injection molding device and method for producing precision optical and precision mechanical parts from a thermoplastic

Also Published As

Publication number Publication date
IT962841B (en) 1973-12-31
CH533003A (en) 1973-01-31
DE2230404A1 (en) 1973-02-01

Similar Documents

Publication Publication Date Title
AT332564B (en) PRODUCTION OF AN ARTICLE FROM POLYURETHANE FOAM WITH LYOPHILE SURFACE
CA953969A (en) Iridescent plastic article and method of production
SE396035B (en) RAIL-LAYED COATING MATERIAL OF SPACE POLYMERIZED PLASTIC WITH STRUCTURED, DISCONTINUINARY SURFACE AND PROCEDURE FOR PRODUCTION OF COATING MATERIAL
YU35373B (en) Ea and formaldehyde process for the continuous preparation of plastics from ur
FR2146263A1 (en) Smooth surfaced foamed mouldings - by coating the mould with ptfe
CA930627A (en) Production of a composite article of phenolic resin foam with a fiber-containing surface layer
YU298277A (en) Multiple-layer plastic coating
AT307755B (en) Process for the continuous production of a flexible, porous multilayer material web with a high-gloss outer surface
CA989127A (en) Scrapless forming of plastic articles
AT305194B (en) Process for the production of a flexible, flat, synthetic, breathable multi-layer material with a pile-like exterior
GB2013132A (en) Process for the Partial Coating of Plastics Mouldings Produced by Injection Moulding
FR2124315A1 (en) Plastic mouldings - reinforced by laminar mica particles
FR2071797A5 (en) Plastic moulding with separate coating of - other material
NL7413730A (en) PROCESS FOR THE MANUFACTURE OF IMPREGNATED AND COATED PLASTIC RESINS FOR SURFACE FINISHING WITH HARDABLE PLASTIC RESINS.
ES380466A1 (en) Dipping form for making skin-type articles from plastic material
ZA72296B (en) A process for the production of an injection moulded article
CA969316A (en) Process for the manufacture of thermosetting plastic moulded articles having a glossy stain resistant surface
BR7201672D0 (en) COATING AND MOLDING COMPOSITES AND PROCESS FOR THE PRODUCTION OF THESE MOLDINGS AND COATINGS
ATA857275A (en) PROCESS FOR THE PRODUCTION OF COATED PLASTICS WITH FIBER-LIKE SURFACE AND LAMINATE PRODUCED AFTER THAT
GB1351251A (en) Compression-coated plastic foam cores
CA854252A (en) Process for the production of mouldings from polyurethane plastic foam covered with a continuous surface coating
FR2086734A5 (en) Coating surfaces with fluorocarboncompds
CA1015083A (en) Process for the production of a latex composition which is processable into a non-gelling vulcanizable solid foam and a process for coating a substrate with said foam
CA965314A (en) Process for improving th property of the surface of an optical material by providing a coating and an article improved thereby
AT311032B (en) Process for the production of a combination of wood and foamed plastic

Legal Events

Date Code Title Description
ST Notification of lapse