GB1311807A - Process for the production of a moulded part of a hard foam - Google Patents

Process for the production of a moulded part of a hard foam

Info

Publication number
GB1311807A
GB1311807A GB2378070A GB2378070A GB1311807A GB 1311807 A GB1311807 A GB 1311807A GB 2378070 A GB2378070 A GB 2378070A GB 2378070 A GB2378070 A GB 2378070A GB 1311807 A GB1311807 A GB 1311807A
Authority
GB
United Kingdom
Prior art keywords
foam
article
moulding
liquid
production
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
GB2378070A
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.)
Siemens AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Publication of GB1311807A publication Critical patent/GB1311807A/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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/30—Mounting, exchanging or centering
    • B29C33/303—Mounting, exchanging or centering centering mould parts or halves, e.g. during mounting
    • B29C33/304—Mounting, exchanging or centering centering mould parts or halves, e.g. during mounting centering cores
    • 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
    • B29C33/76—Cores
    • 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
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/04—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities
    • 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
    • B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
    • B29C33/48—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles with means for collapsing or disassembling
    • B29C33/50—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles with means for collapsing or disassembling elastic or flexible
    • 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
    • B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, 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
    • B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
    • 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
    • B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
    • B29K2105/043—Skinned foam

Abstract

1311807 Injection moulding foamed plastics SIEMENS AG 15 May 1970 [24 May 1969] 23780/70 Heading B5A In a method of moulding an article of polyurethane diisomer foam with a dense closed outer layer 3, a reaction mixture capable of forming the foam 2 is injected into the space between the mould walls (not shown) and a body 1 introduced into the mould and spaced therefrom on all sides. The article may be a fan blade (Fig. 2) or a hot water storage tank (Figs. 3, 4, not shown). The inserted body 1 may be a foam plastics core or a hollow body filled with gas or liquid which is emptied out after the moulding process. The liquid may be heated or cooled or even frozen. In Fig. 2 the body 1 is a copper container filled with water while in, Figs. 3, 4 (not shown), a polypropylene shell is used.
GB2378070A 1969-05-24 1970-05-15 Process for the production of a moulded part of a hard foam Expired GB1311807A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691926688 DE1926688A1 (en) 1969-05-24 1969-05-24 Method for producing a molded part from polyurethane thermoset foam

Publications (1)

Publication Number Publication Date
GB1311807A true GB1311807A (en) 1973-03-28

Family

ID=5735164

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2378070A Expired GB1311807A (en) 1969-05-24 1970-05-15 Process for the production of a moulded part of a hard foam

Country Status (8)

Country Link
BE (1) BE750794A (en)
CH (1) CH515112A (en)
DE (1) DE1926688A1 (en)
ES (1) ES379919A1 (en)
FR (1) FR2043653A1 (en)
GB (1) GB1311807A (en)
LU (1) LU60969A1 (en)
NL (1) NL7005482A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2131737A (en) * 1982-10-21 1984-06-27 Macchi International Spa Shaped bodies and method for their production

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2160245A1 (en) * 1971-11-15 1973-06-29 Maglum Sa Composite hollow mouldings - with optimised combination of flexibility and strength esp for automobile furnishings
DE3439101A1 (en) * 1984-10-25 1986-05-07 Irbit Research + Consulting Ag, Freiburg/Fribourg Composite body production process
DE3525866A1 (en) * 1985-07-19 1987-01-29 Jakob Herrmann DEVICE FOR TESTING AND / OR MACHINING SMALL COMPONENTS
DE4340701A1 (en) * 1993-11-30 1995-06-01 Fehrer Gummihaar Making a form contg. a closed cavity or connected channel
DE19747645A1 (en) * 1997-10-29 1999-05-06 Behr Gmbh & Co Process for producing a foam body and foam body

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2131737A (en) * 1982-10-21 1984-06-27 Macchi International Spa Shaped bodies and method for their production

Also Published As

Publication number Publication date
ES379919A1 (en) 1972-09-01
LU60969A1 (en) 1970-07-23
BE750794A (en) 1970-11-23
NL7005482A (en) 1970-11-26
DE1926688A1 (en) 1971-04-22
CH515112A (en) 1971-11-15
FR2043653A1 (en) 1971-02-19

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Legal Events

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