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Safety envelope for foaming resins that release dangerous gases, especially phenol- and urea-formaldehyde resins
Safety envelope for foaming resins that release dangerous gases, especially phenol- and urea-formaldehyde resins
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机译:释放危险气体的发泡树脂(特别是酚醛和脲醛树脂)的安全外壳
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摘要
The present invention relates to a safety envelope (1) for foaming resins that release dangerous gases, especially phenolic and urea-formaldehyde resins, in which envelope the components of the foam (2, 3) are mixed, especially for the production of wedging, blocking or damming devices. Envelope characterised in that it is provided, preferably in its upper portion, with a safety device (4) producing the filtering and the fixing of the toxic gases released during the foaming reaction. IMAGE
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