Acrylic film and acrylic backsheet prepared therefrom

Acrylic film and acrylic backsheet prepared therefrom

  • CN 101,792,565 A
  • Filed: 01/08/2010
  • Published: 08/04/2010
  • Est. Priority Date: 01/09/2009
  • Status: Active Application
First Claim
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1. crylic acid film, it comprises:

  • Weight in described film is benchmark, the multistage acrylic polymers of 70-99 weight %, and this multistage acrylic polymers comprises;

    Weight in described multi-stage polymers is benchmark, and first polymkeric substance of 10-75 weight % is a benchmark in the weight of described first polymkeric substance, and this first polymkeric substance comprises following monomer as copolymerization units;

    the methacrylic acid C of 0-20 weight % 1-C 6Alkyl ester, the homopolymer glass transition temperature of described methacrylic ester (" Tg ") is 60-120 ℃

    ;

    And the vinylformic acid C of 80-100 weight % 1-C 12Alkyl ester, the homopolymer Tg of described acrylate is lower than 10 ℃

    ;

    And Weight in described multi-stage polymers is benchmark, second polymkeric substance that in the presence of described first polymkeric substance, forms of 25-90 weight %, weight in described second polymkeric substance is benchmark, and described second polymkeric substance comprises following component as copolymerization units;

    the methacrylic acid C of 50-100 weight % 1-C 6Alkyl ester, the homopolymer glass transition temperature of described methacrylic ester (" Tg ") is 60-120 ℃

    ;

    The vinylformic acid C of 0-20 weight % 1-C 12Alkyl ester, the homopolymer Tg of described acrylate is lower than 10 ℃

    ;

    And the homopolymer Tg of 0-30 weight % is higher than 120 ℃

    polymkeric substance;

    And Weight in described film is benchmark, the pigment of 1-20 weight %.

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