GB1190379A - Moulding Plastics - Google Patents

Moulding Plastics

Info

Publication number
GB1190379A
GB1190379A GB5496466A GB5496466A GB1190379A GB 1190379 A GB1190379 A GB 1190379A GB 5496466 A GB5496466 A GB 5496466A GB 5496466 A GB5496466 A GB 5496466A GB 1190379 A GB1190379 A GB 1190379A
Authority
GB
United Kingdom
Prior art keywords
mould
heated
melting point
thermoplastic
materials
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
GB5496466A
Inventor
James Michael Adsett
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.)
AQUITAINE FISONS Ltd
Original Assignee
AQUITAINE FISONS 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 AQUITAINE FISONS Ltd filed Critical AQUITAINE FISONS Ltd
Priority to GB5496466A priority Critical patent/GB1190379A/en
Priority to FR1604824D priority patent/FR1604824A/en
Publication of GB1190379A publication Critical patent/GB1190379A/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
    • B29C41/04—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould

Abstract

1,190,379. Rotational casting of thermoplastic powders. AQUITAINE-FISONS Ltd. 7 Dec., 1967 [8 Dec., 1966], No. 54964/66. Heading B5A. Hollow mouldings of a thermoplastic polymeric material, which are internally lined with a second polymeric material of higher melting point, are moulded by charging both materials to a mould which is heated to a temperature, intermediate the respective melting points, as the mould is rotated about one or more axes so that a reservoir of unsintered particles remain at the lowest point of the mould as an outer continuous skin of the low melting point thermoplastic material is formed by sintering, the mould then being heated to a temperature above the higher melting point to complete the sintering of the particles to form the internal lining. The mould is heated by a hot liquid spray, e.g. of molten salts, or may be jacketed and oil heated. The mould may be heated to above the higher melting point before all the first material particles are sintered whereby bonding between the layers of material is enhanced. The thermoplastic polymeric materials may comprise combinations of a low density polyethylene with polyaminoundecanoamide, polyvinyl chloride with polyvinyl alcohol or a polyamide or a polyethylene. Other materials which may be used are polypropylene, polycaprolactam or cellulose acetate butyrate.
GB5496466A 1966-12-08 1966-12-08 Moulding Plastics Expired GB1190379A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB5496466A GB1190379A (en) 1966-12-08 1966-12-08 Moulding Plastics
FR1604824D FR1604824A (en) 1966-12-08 1967-12-07 Rotational casting of two thermoplastic polymers into - hollow mouldings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5496466A GB1190379A (en) 1966-12-08 1966-12-08 Moulding Plastics

Publications (1)

Publication Number Publication Date
GB1190379A true GB1190379A (en) 1970-05-06

Family

ID=10472584

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5496466A Expired GB1190379A (en) 1966-12-08 1966-12-08 Moulding Plastics

Country Status (2)

Country Link
FR (1) FR1604824A (en)
GB (1) GB1190379A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997038839A1 (en) * 1996-04-16 1997-10-23 Linpac Mouldings Pty. Ltd. Improved rotational moulding process
US6180203B1 (en) 1997-04-09 2001-01-30 Peter J. Unkles Rotational moulding process
EP1422059A1 (en) * 2002-11-21 2004-05-26 ATOFINA Research Multilayer rotational moulding

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0644714Y2 (en) * 1990-11-19 1994-11-16 新藤販売株式会社 Bound paper products such as calendars
FR2813232B1 (en) * 2000-08-30 2002-10-11 Commissariat Energie Atomique METHOD FOR MANUFACTURING A REVOLUTION PART BY ROTOMOLDING AND A PART OBTAINED

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997038839A1 (en) * 1996-04-16 1997-10-23 Linpac Mouldings Pty. Ltd. Improved rotational moulding process
GB2328396A (en) * 1996-04-16 1999-02-24 Linpac Mouldings Pty Ltd Improved rotational moulding process
GB2328396B (en) * 1996-04-16 1999-12-15 Linpac Mouldings Pty Ltd Improved rotational moulding process
US6180203B1 (en) 1997-04-09 2001-01-30 Peter J. Unkles Rotational moulding process
EP1422059A1 (en) * 2002-11-21 2004-05-26 ATOFINA Research Multilayer rotational moulding
WO2004045849A1 (en) * 2002-11-21 2004-06-03 Total Petrochemicals Research Feluy Multilayer rotational moulding
AU2003288138B2 (en) * 2002-11-21 2009-12-24 Total Petrochemicals Research Feluy Multilayer rotational moulding
US20130011643A1 (en) * 2002-11-21 2013-01-10 Total Petrochemicals Research Feluy Multilayer Rotational Moulding
US9962911B2 (en) * 2002-11-21 2018-05-08 Total Research & Technology Feluy Multilayer rotational moulding

Also Published As

Publication number Publication date
FR1604824A (en) 1972-04-17

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees