POLYOLEFIN DISPERSION TECHNOLOGY USED FOR POROUS SUBSTRATES

POLYOLEFIN DISPERSION TECHNOLOGY USED FOR POROUS SUBSTRATES

  • CN 104,088,152 A
  • Filed: 10/14/2008
  • Published: 10/08/2014
  • Est. Priority Date: 10/25/2007
  • Status: Active Application
First Claim
Patent Images

1. by water-borne dispersions being applied to matrix of nonwoven filament, form a method for ventilative goods, it comprises:

  • Select matrix of nonwoven filament;

    The moisture transmission rates (MVTR) of the ventilative goods that described in choice for use prepared by matrix of nonwoven filament is 300g/m at least 2every 24 hours, utilize ASTM standard E96-80 to erect agar diffusion method and record;

    Select thermoplastic polymer, dispersant, neutralizer and be enough to prepare a certain amount of water that pH is less than 12 water-borne dispersions;

    Select described thermoplastic polymer, neutralizer and will, from the amount of the water removed with the matrix of nonwoven filament that described water-borne dispersions applies, obtain the selected MVTR of described ventilative goods;

    The selected thermoplastic polymer of melt kneading, dispersant, neutralizer and be enough to form the water of described water-borne dispersions,Thereby water-borne dispersions is applied to the matrix of nonwoven filament that forms initial application on selected matrix of nonwoven filament, the streamline speed wherein substantially equating with the streamline speed of producing with matrix of nonwoven filament, is applied to water-borne dispersions the process integration of this matrix of nonwoven filament to matrix of nonwoven filament production line;

    WithFrom the matrix of nonwoven filament of described initial application, remove at least a portion water, thereby produce the ventilative goods with selected MVTR;

    Wherein said thermoplastic polymer comprises one or more polyolefin, and described dispersant comprises at least one polar polyolefin with polar group as the monomer of comonomer or grafting.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×