US 11,753,335 B2
Glass mat and method of making the glass mat
Jeffrey H. Peet, Southborough, MA (US); Nancy E. Brown, New Braintree, MA (US); Tao Yu, Wellesley, MA (US); and Gary Charles Hildreth, North Oxford, MA (US)
Assigned to SAINT-GOBAIN ADFORS CANADA, LTD., Grand Island, NY (US)
Filed by SAINT-GOBAIN ADFORS CANADA, LTD., Grand Island, NY (US)
Filed on Jan. 16, 2020, as Appl. No. 16/744,511.
Application 16/744,511 is a division of application No. 15/199,266, filed on Jun. 30, 2016, granted, now 10,995,032.
Claims priority of provisional application 62/187,012, filed on Jun. 30, 2015.
Prior Publication US 2020/0223751 A1, Jul. 16, 2020
Int. Cl. C08J 5/04 (2006.01); C03C 25/34 (2006.01); C03C 25/26 (2018.01); E04C 2/16 (2006.01); E04C 2/22 (2006.01)
CPC C03C 25/34 (2013.01) [C03C 25/26 (2013.01); C08J 5/043 (2013.01); E04C 2/16 (2013.01); E04C 2/22 (2013.01); C08J 2333/06 (2013.01); C08J 2361/24 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A glass mat comprising:
an assembly of glass fibers consisting essentially of glass fibers, wherein the assembly of glass fibers are dimensionally constrained to reduce voids between the assembly of glass fibers and are substantially randomly oriented with a tensile anisotropy of less than about 6 in any two directions, wherein the tensile anisotropy is the ratio of a tensile strength of the glass mat taken in the two directions; and
a binder composition comprising an organic resin, wherein the organic resin comprises a urea-formaldehyde composition, a latex composition, a stryrene-butadiene rubber (SBR) composition, a vinyl acetate ethylene composition, a blend or combination thereof and wherein the binder composition comprises the latex present at an amount of up to about 5% by weight based on the total weight % of the binder composition;
wherein the glass mat having the dimensionally constrained assembly of glass fibers has a surface roughness of a root-mean-square deviation of the surface when measured with an Optical Surface Profilometer of more than about 10% lower than an equivalent glass mat having an assembly of naturally packed glass fibers with an equivalent fiber diameter size.