C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
C09D 5/32 (2006.01) B32B 11/04 (2006.01) B32B 27/30 (2006.01) C09D 133/08 (2006.01) E04D 7/00 (2006.01) C08L 33/08 (2006.01)
Patent
CA 2092324
17 UNITED STATES/CANADA TITLE: Roofing Composition and Method of Applying the Composition to a Roof INVENTOR: Thomas Wilhelm Urbanek ABSTRACT OF THE DISCLOSURE A new roofing composition provides for the application of an acrylic polymer to a hot or cold asphaltic layer. The acrylic polymer is provided with barrier characteristics that resist the movement of mobile phases into the shield layer. The barrier characteristics are provided by ensuring that the polymer include a minor (preferably less than 5%) amount of metal complexes. The polymer should be present in an amount sufficient to ensure that it can form a continuous film on application to the base asphaltic layer. Pigment volume concentration should not be present in an amount that would interfere with the barrier characteristics, with the pigment volume concentration being less than 35%.
Lambert Anthony R.
Polymer Science Corporation
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