Glass mat for roofing products
AssigneeSaint-Gobain Adfors Canada, Ltd.
InventorsWayne R. Vliet, Missy R. Miller, Ronald L. Franklin, Jr., Charles G. Herbert, Nancy E. Brown, Fei Wang
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Abstract
A glass mat includes an assembly of glass fibers, a binder composition and an asphaltic coating. The binder composition includes an organic resin and an adhesion promoter. The glass mat has an at least 2% increase in tear strength as measured using the methods specified in ASTM D3462, compared to an asphaltic coated glass mat having a binder composition without the adhesion promoter. Further provided is an asphalt roofing product including the glass mat and a method of increasing tear strength in an asphalt roofing product.
Claims20
A glass mat comprising:
- an assembly of glass fibers;
- and
- a binder composition comprising an organic resin and an adhesion promoter comprising a resin acid additive, a tall oil fatty acid, a rosin, a tall oil derivative, or combination thereof, wherein the adhesion promoter increases adhesion of the binder to the assembly of glass fibers.
Dependencies are inferred from the claim text.