FR2168366A1 - Bonded foam products - by electrostatically spraying layers of foam flakes on moving support with reaction mixt and compre - Google Patents

Bonded foam products - by electrostatically spraying layers of foam flakes on moving support with reaction mixt and compre

Info

Publication number
FR2168366A1
FR2168366A1 FR7301329A FR7301329A FR2168366A1 FR 2168366 A1 FR2168366 A1 FR 2168366A1 FR 7301329 A FR7301329 A FR 7301329A FR 7301329 A FR7301329 A FR 7301329A FR 2168366 A1 FR2168366 A1 FR 2168366A1
Authority
FR
France
Prior art keywords
foam
flakes
bonded
moving support
compre
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Withdrawn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
FR7301329A
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.)
SERPO NV
Original Assignee
SERPO NV
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 SERPO NV filed Critical SERPO NV
Publication of FR2168366A1 publication Critical patent/FR2168366A1/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Withdrawn legal-status Critical Current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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
    • B29C44/30—Expanding the moulding material between endless belts or rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
    • 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
    • B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
    • B29C44/32—Incorporating or moulding on preformed parts, e.g. linings, inserts or reinforcements
    • B29C44/326—Joining the preformed parts, e.g. to make flat or profiled sandwich laminates
    • 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
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/20—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored
    • B29C67/207—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored comprising impregnating expanded particles or fragments with a binder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2007/00—Flat articles, e.g. films or sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2009/00—Layered products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00—Composition of foam
    • B32B2266/02—Organic
    • B32B2266/0214—Materials belonging to B32B27/00
    • B32B2266/0278—Polyurethane

Abstract

Bonded foam products are produced by spreading foam flakes on a forwardly moving support layer, electrostatically spraying a reaction mixture on the flakes, and temporarily compressing the sprayed flakes. Used for prodn of bonded foam blocks etc from foam flakes obtd by chopping waste plastic foam, esp polyurethane foam. The electrostatic spraying avoids the displacement of the flakes on the support, and the flakes are sprayed uniformly, so that a uniform products is obtd.
FR7301329A 1972-01-17 1973-01-15 Bonded foam products - by electrostatically spraying layers of foam flakes on moving support with reaction mixt and compre Withdrawn FR2168366A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE2051589 1972-01-17

Publications (1)

Publication Number Publication Date
FR2168366A1 true FR2168366A1 (en) 1973-08-31

Family

ID=3864960

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7301329A Withdrawn FR2168366A1 (en) 1972-01-17 1973-01-15 Bonded foam products - by electrostatically spraying layers of foam flakes on moving support with reaction mixt and compre

Country Status (6)

Country Link
BE (1) BE778106A (en)
DE (1) DE2301949A1 (en)
ES (1) ES410632A1 (en)
FR (1) FR2168366A1 (en)
IT (1) IT977614B (en)
NL (1) NL7300283A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19506565B4 (en) * 1995-02-24 2007-06-14 Bayerische Motoren Werke Ag Method for producing hollow bodies by conglutination of plastic flakes

Also Published As

Publication number Publication date
ES410632A1 (en) 1976-01-01
IT977614B (en) 1974-09-20
BE778106A (en) 1972-07-17
NL7300283A (en) 1973-07-19
DE2301949A1 (en) 1973-08-02

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Legal Events

Date Code Title Description
ST Notification of lapse