EP0041054A2
Expired / Lapsed
EP
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A foam composite material impregnated with resin
Assignee: Kemanord AB
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Filing: 1981-05-06
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Granted: —
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Expires: 2001-05-06
Abstract
Abstract The invention relates to a foam composite material which comprises a material in web form impregnated with a curable resin. The resin in the foam composite material is in the B-stage. The foam composite material further contains expanded thermoplastic particles which are essentially uniformly distributed in the resin and in the web material. The invention also relates to laminates prepared by use of the foam composite material and a method for the manufacture of such laminates.
Inventors
- 👤 Bengt Andersson
- 👤 Olof Tanner
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-30 05:33
CPC Classifications
B; B32; B32B; B32B5/00; B32B5/18; B32B7/00; B32B7/04; C; C08; C08J; C08J9/00; C08J9/22; C08J9/228; C08J9/236; C08J9/32; D; D04; D04H; D04H1/00; D04H1/40; D04H1/42; D04H1/4209; D04H1/4218; D04H1/58; D04H1/587; D04H1/64; D04H1/645; D04H1/68; D06; D06N; D06N3/00; D06N3/04; D06N3/042; B32B2260/00; B32B2260/04; B32B2260/046; B32B2266/00; B32B2266/02; B32B2266/0214; B32B2266/0285; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249971; Y10T428/249972; Y10T428/249981; Y10T428/249986; Y10T442/00; Y10T442/30; Y10T442/3325; Y10T442/3341; Y10T442/335; Y10T442/60; Y10T442/647; Y10T442/649
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
67 words
A laminate, characterized in, that it comprises at least one foam composite material, which includes a material in the form of a web, a cured resin and expanded thermoplastic particles essentially uniformly distributed in the resin and in the web material, and at least one further such a material or another material, whereby the materials are bonded by use of the resin in the foam composite material.
Claim 2
Dependent Claim
67 words
A laminate, characterized in, that it comprises at least one foam composite material, which includes a material in the form of a web, a cured resin and expanded thermoplastic particles essentially uniformly distributed in the resin and in the web material, and at least one further such a material or another material, whereby the materials are bonded by use of the resin in the foam composite material.
Claim 3
Dependent Claim
26 words
The laminate of claim I, characterized in, that it comprises a foam composite material wherein the web material has a thickness between 0.1 and 5 mm.
Claim 4
Dependent Claim
17 words
The laminate of claim 1, characterized in that it comprises at least two foam composite material sheets.
Claim 5
Dependent Claim
27 words
The laminate of claim 1, characterized in, that the resin in the foam composite material consists of a formaldehyde-based resin with phenol, resorcinol, urea and/ or melamine.
Claim 6
Independent Claim
84 words
A method for the manufacture of a laminate, characterized in, that at least one foam composite material is first prepared, including a material in the form of a web, a curable resin in the B-stage and expanded thermoplastic particles essentially uniformly distributed in the resin and in the material, that the foam composite material is assembled with at least one further such material or another material and that the materials are bonded to each other by use of a final curing of the resin.
Claim 7
Independent Claim
84 words
A method for the manufacture of a laminate, characterized in, that at least one foam composite material is first prepared, including a material in the form of a web, a curable resin in the B-stage and expanded thermoplastic particles essentially uniformly distributed in the resin and in the material, that the foam composite material is assembled with at least one further such material or another material and that the materials are bonded to each other by use of a final curing of the resin.
Claim 8
Dependent Claim
22 words
The material of claim 5, characterized in, that the final curing of the resin takes place under influence of heat and pressure.
Claim 9
Dependent Claim
49 words
The method of claim 5, characterized in that the foam composite material is prepared by impregnation of the web material with expandable thermoplastic particles and a solution of the resin and that heat is then added to expand the thermoplastic particles and to transform the resin into the B-stage.
Claim 10
Dependent Claim
54 words
A foam composite material, characterized in that it comprises a material in the form of a web, impregnated with a curable resin, which resin in the foam composite material is in the B-stage, and in that it contains expanded thermoplastic particles which are essentially uniformly distributed in the resin and in the web material.
Claim 11
Dependent Claim
54 words
A foam composite material, characterized in that it comprises a material in the form of a web, impregnated with a curable resin, which resin in the foam composite material is in the B-stage, and in that it contains expanded thermoplastic particles which are essentially uniformly distributed in the resin and in the web material.
Claim 12
Dependent Claim
25 words
A foam composite material according to claim 8, characterized in that, the curable resin is a formaldehyde based resin with phenol, resorcinol, carbamide or melamine.
Claim 13
Dependent Claim
30 words
A foam composite material according to claims 8 or 9, characterized in that the expanded thermoplastic particles have a shell made up from a copolymer of vinylidene chloride and acrylonitrile.
Claim 14
Dependent Claim
33 words
ll. A foam composite material according to any of claims 8 to 10, characterized in that the expanded thermoplastic particles are present in an amount of 70-95, preferably 85-95, per cent by volume.
References Cited (Backward Citations)
No citation records indexed.
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