| (19) |
 |
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(11) |
EP 0 297 199 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
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12.07.1989 Bulletin 1989/28 |
| (43) |
Date of publication A2: |
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04.01.1989 Bulletin 1989/01 |
| (22) |
Date of filing: 25.09.1987 |
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| (84) |
Designated Contracting States: |
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AT BE CH DE ES FR GB GR LI LU NL SE |
| (30) |
Priority: |
30.06.1987 IT 2112787
|
| (71) |
Applicant: FISI FIBRE SINTETICHE S.p.A. |
|
I-22059 Robbiate (Como) (IT) |
|
| (72) |
Inventors: |
|
- Siniscalchi, Lucio
I-22059 Robbiate (Como) (IT)
- Siniscalchi, Marciano
I-22059 Robbiate (Como) (IT)
|
| (74) |
Representative: Cicogna, Franco |
|
Ufficio Internazionale Brevetti
Dott.Prof. Franco Cicogna
Via Visconti di Modrone, 14/A
20122 Milano
20122 Milano (IT) |
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| |
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|
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Remarks: |
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The title of the invention has been amended (Guidelines for Examination in the EPO,
A-III, 7.3). |
|
| (54) |
Method for making a thermally insulating wadding useful for clothing and upholstery |
(57) The present invention relates to a method for making an improved thermal insulation
characteristic wadding, particularly designed for making cloth, furniture and the
like articles, which comprises the step of preparing, by means of carding machines,
a lap consisting of a mixture of polyester or other nature fibres, which have been
possibly siliconized, and subjecting this lap to a subsequent resin treating step,
on at least a face thereof, by using cross-linked glues.
The resin treated lap is then calendered, under controlled temperature and pressure
conditions, so as to obtain, on its surface, a soft and resilient film and, inside
it, an air chamber so as to provide a low thermal exchange coefficient and, accordingly,
a proper temperature controlling of the body temperature.