	US 11,739,234 B2
	Natural stone sealer compositions
Barry Culkin, Braintree, MA (US); Roger Questel, Arlington, VT (US); Robert Harrington, Plymouth, MA (US); Douglas Croteau, North Springfield, VT (US); Paul Thottathil, New Hyde Park, NY (US); Purushoth Kesavan, Franklin Square, NY (US); John Ryan, Bellmore, NY (US); and Satyabrata Mukherjee, Westbury, NY (US)
Assigned to Questech Corporation, Rutland, VT (US)
Filed by Questech Corporation, Rutland, VT (US)
Filed on Feb. 2, 2021, as Appl. No. 17/248,664.
Claims priority of provisional application 62/975,405, filed on Feb. 12, 2020.
Prior Publication US 2021/0253890 A1, Aug. 19, 2021
Int. Cl. C09D 127/16 (2006.01); C09D 5/02 (2006.01); C09D 7/20 (2018.01); C09D 175/14 (2006.01); C09D 133/04 (2006.01); C04B 41/63 (2006.01); C04B 41/45 (2006.01); C04B 41/48 (2006.01); C04B 41/00 (2006.01)

CPC C09D 127/16 (2013.01) [C04B 41/009 (2013.01); C04B 41/4539 (2013.01); C04B 41/483 (2013.01); C04B 41/4842 (2013.01); C04B 41/4884 (2013.01); C04B 41/63 (2013.01); C09D 5/022 (2013.01); C09D 7/20 (2018.01); C09D 133/04 (2013.01); C09D 175/14 (2013.01)]

24 Claims

1. A two-part composition for sealing natural stone or masonry, comprising:

a. a first part comprising:

i. a polyvinylidene fluoride (PVDF) particulate;

ii. a low evaporation rate organic solvent; and

iii. water; and

b. a second part comprising a blend of a plurality of liquid resins.