Small-formaldehyde-emission-amount molded article composed of melamine/formaldehyde foam
    1.
    发明专利
    Small-formaldehyde-emission-amount molded article composed of melamine/formaldehyde foam 有权
    甲醛/甲醛泡沫组合的小型甲醛排放量成型品

    公开(公告)号:JP2005119269A

    公开(公告)日:2005-05-12

    申请号:JP2004226647

    申请日:2004-08-03

    CPC classification number: B29C44/5636 B29C44/569

    Abstract: PROBLEM TO BE SOLVED: To provide a molded article of melamine/formaldehyde foam, which makes the amount of emitted formaldehyde smaller.
    SOLUTION: In this molded article composed of the melamine/formaldehyde foam, the amount of formaldehyde emitted from the molded article, which is measured according to the Deutsche Industrie Norm 55666, is smaller than 0.1 ppm. The molded article is obtained by the following treatments: (a) a foam is manufactured from a melamine/formaldehyde pre-condensate wherein a molar ratio between melamine and formaldehyde is higher than 0.5; (b) the foam, which is formed by the treatment (a), is annealed at a temperature lower than 200; and (c) the annealed foam is molded in a compressor for 15-120 seconds at a temperature of 160-240°C under an absolute pressure of 5-100 bars, so that the molded article can be obtained.
    COPYRIGHT: (C)2005,JPO&NCIPI

    Abstract translation: 要解决的问题:提供三聚氰胺/甲醛泡沫塑料的模制品,这使得排出的甲醛的量更小。 解决方案:在由三聚氰胺/甲醛泡沫体组成的模塑制品中,根据德国工业标准55666测量的模制品发射的甲醛的量小于0.1ppm。 通过以下处理获得成型品:(a)由三聚氰胺/甲醛预缩合物制造泡沫体,其中三聚氰胺与甲醛的摩尔比高于0.5; (b)通过处理(a)形成的泡沫体在低于200℃的温度下退火; 和(c)将退火的泡沫在压缩机中在160-240℃的温度下在5-100巴的绝对压力下在压缩机中模制15-120秒,从而可以获得模塑制品。 版权所有(C)2005,JPO&NCIPI

    6.
    发明专利
    未知

    公开(公告)号:DE502004005548D1

    公开(公告)日:2008-01-03

    申请号:DE502004005548

    申请日:2004-07-31

    Applicant: BASF AG

    Abstract: Shaped article (A) of melamine-formaldehyde foam that has formaldehyde emission below 0.1 ppm, as measured by DIN 556661. Shaped article (A) of melamine-formaldehyde foam that has formaldehyde emission below 0.1 ppm, as measured by DIN 556661, is prepared by: (a) generating a foam from a precondensate having melamine:formaldehyde mole ratio over 0.5; (b) conditioning the foam at below 200[deg]C; and (c) compressing the foam, in a press, at 160-240[deg]C and 5-100 bar (absolute) for 15-120 s. Independent claims are also included for the following: (1) method for preparing (A), as described; and (2) melamine-formaldehyde foam with formaldehyde emission below 0.1 ppm, prepared by steps (a) and (b) above.

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