EP0565392B1
Expired / Lapsed
EP
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Method for manufacturing a mat-like product containing mineral fibres and a binding agent; and obtained product
Assignee: Rockwool AS
•
Filing: 1993-03-09
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Granted: 1996-05-22
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Expires: 2013-03-09
Abstract
No abstract record available.
Inventors
- 👤 Jarmo Simola
- 👤 Jean Le Bell
- 👤 Ulf Westerlund
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 18:39
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/70; D04H1/72; D04H1/732; D04H1/40; D04H1/42; D04H1/4209; D04H1/54; D04H1/542; D04H1/58; D04H1/60
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
133 words
Method for manufacturing a mat-like product containing mineral fibres and a binding agent, according to which the binding agent is mixed together with the fibres before the formation of the product, characterized in that the binding agent consists of thermoplastic particles, such as fibres, a powder, or particles in a dispersion, which are, in connection with the manufacture of the mineral fibres, mixed with the mineral fibres formed of melted material and supplied into air, and in that the mixture of fibres and binding agent is carried away by a turbulent air flow, in which the heat contained in the melted material and in the fibres formed of it is utilized for melting or softening the thermoplastic particles into a state, in which they effect the binding of the fibres to each other.
Claim 2
Dependent Claim
56 words
Method according to claim 1, characterized in that a cooling agent (1) is supplied to the mixture of fibres and thermoplastic particles carried in the air flow, and in that the quantity and/or the temperature of said cooling agent is used to adjust the temperature of the air surrounding the thermoplastic particles to a suitable level.
Claim 3
Dependent Claim
44 words
Method according to claim 1 or 2, characterized in that the binding agent is mixed with the fibres by conveying it by a separate flow (3), such as a gas flow carrying fibres or powder, or a liquid flow carrying particles in a dispersion.
Claim 4
Dependent Claim
32 words
Method according to one of the claims 1 to 3, characterized in that the mixture of fibres and thermoplastic particles is formed in a chamber (5) substantially closed from the surrounding air.
Claim 5
Dependent Claim
59 words
Method according to claim 4, characterized in that the fibres and the thermoplastic particles are collected into a mineral fibre mat at the distant end of the chamber (5), as seen in the main direction of the air flow, on a movable, air-permeable support (8), through which the air flow having carried the mixture in the chamber is passed.
Claim 6
Dependent Claim
38 words
Method according to claim 5, characterized in that the mat is cooled down e.g. by an air flow (9) blown through it, whereby the thermoplastic binding agent is hardened and binds the mineral fibre mat in its shape.
Claim 7
Dependent Claim
44 words
Method according to claim 6, characterized in that the mat is calendered at the end of the cooling stage for compressing the mixture of fibres and the binding agent into its final density and/or for pressing the surface of the mat into a pattern.
Claim 8
Dependent Claim
57 words
Method according to one of the claims 1 to 7, characterized in that the air flow having carried the fibres and the binding agent and/or the air flow (9) having cooled the mat formed thereof is conducted (12) to the beginning of the process and used for adjusting the temperature of the air surrounding the thermoplastic particles.
Claim 9
Dependent Claim
34 words
Use of products manufactured by the method according to one of the claims 1 to 8 and containing mineral fibres and a solidified thermoplastic binding agent for the manufacture of compression-moulded mineral fibre products.
References Cited (Backward Citations)
No citation records indexed.
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