FR2164463A1 - Foam cored grp sandwich panels - with grp bridge profiles at frequent intervals for greater strength, for boat hulls - Google Patents

Foam cored grp sandwich panels - with grp bridge profiles at frequent intervals for greater strength, for boat hulls

Info

Publication number
FR2164463A1
FR2164463A1 FR7145919A FR7145919A FR2164463A1 FR 2164463 A1 FR2164463 A1 FR 2164463A1 FR 7145919 A FR7145919 A FR 7145919A FR 7145919 A FR7145919 A FR 7145919A FR 2164463 A1 FR2164463 A1 FR 2164463A1
Authority
FR
France
Prior art keywords
grp
foam
laying
panels
sandwich panels
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.)
Granted
Application number
FR7145919A
Other languages
French (fr)
Other versions
FR2164463B3 (en
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.)
BARNEL CLAUDE
Original Assignee
BARNEL CLAUDE
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 BARNEL CLAUDE filed Critical BARNEL CLAUDE
Priority to FR7145919A priority Critical patent/FR2164463A1/en
Publication of FR2164463A1 publication Critical patent/FR2164463A1/en
Application granted granted Critical
Publication of FR2164463B3 publication Critical patent/FR2164463B3/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • B32B5/22—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/245—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it being a foam layer
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • 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
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/18—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by an internal layer formed of separate pieces of material which are juxtaposed side-by-side
    • 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
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
    • E04C2/34—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts
    • 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
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/02—Composition of the impregnated, bonded or embedded layer
    • B32B2260/021—Fibrous or filamentary layer
    • 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
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/04—Impregnation, embedding, or binder material
    • B32B2260/046—Synthetic resin
    • 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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/101—Glass fibres

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Laminated Bodies (AREA)

Abstract

Sandwich panels with GRP outer layers and an intermediate layer of bonded synthetic foam, where the structure incorporates long bridging elements of resin impregnated glass which are bonded to both facing panels by faces linked by rounded corners. Pref. the reinforcing panels are shaped like troughs with lips having a combined surface area similar to the area of the base of the trough, and the structures are assembled by lining a mould with one resin impregnated facing layer, over-laying this at intervals with shaped strips of core foam, laying up bridge elements over the foam strips either as preshaped profiles or by direct spray-up, then laying up the rest of the foam between the bridging elements and finally laying on the other sandwich panel. Strengthening effect can be sufficient to allow satisfactory use of polyurethane foams weighing 40 kg/m3 instead of PVC foams fo >100 kg/m3.
FR7145919A 1971-12-21 1971-12-21 Foam cored grp sandwich panels - with grp bridge profiles at frequent intervals for greater strength, for boat hulls Granted FR2164463A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7145919A FR2164463A1 (en) 1971-12-21 1971-12-21 Foam cored grp sandwich panels - with grp bridge profiles at frequent intervals for greater strength, for boat hulls

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7145919A FR2164463A1 (en) 1971-12-21 1971-12-21 Foam cored grp sandwich panels - with grp bridge profiles at frequent intervals for greater strength, for boat hulls

Publications (2)

Publication Number Publication Date
FR2164463A1 true FR2164463A1 (en) 1973-08-03
FR2164463B3 FR2164463B3 (en) 1974-08-23

Family

ID=9087789

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7145919A Granted FR2164463A1 (en) 1971-12-21 1971-12-21 Foam cored grp sandwich panels - with grp bridge profiles at frequent intervals for greater strength, for boat hulls

Country Status (1)

Country Link
FR (1) FR2164463A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998052744A1 (en) * 1997-05-19 1998-11-26 The Secretary Of State For Defence Composite structure
US7051489B1 (en) 1999-08-12 2006-05-30 Hunter Douglas Inc. Ceiling system with replacement panels

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998052744A1 (en) * 1997-05-19 1998-11-26 The Secretary Of State For Defence Composite structure
US7051489B1 (en) 1999-08-12 2006-05-30 Hunter Douglas Inc. Ceiling system with replacement panels

Also Published As

Publication number Publication date
FR2164463B3 (en) 1974-08-23

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Legal Events

Date Code Title Description
ST Notification of lapse