US 12,091,573 B2
Polysiloxane-based protective coating composition for hard surfaces
Frans A. Audenaert, Kaprijke (BE); Christoph T. R. Schuell, Neuss (DE); Bernd Kühneweg, Duesseldorf (DE); Hugo R. Lens, Boechout (BE); Philip A. Jinks; Wayne W. Fan, Cottage Grove, MN (US); and Inge Nuyts, Steendorp (BE)
Assigned to 3M Innovative Properties Company, St. Paul, MN (US)
Appl. No. 15/733,678
Filed by 3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US)
PCT Filed May 31, 2019, PCT No. PCT/IB2019/054528
§ 371(c)(1), (2) Date Sep. 28, 2020,
PCT Pub. No. WO2019/234566, PCT Pub. Date Dec. 12, 2019.
Claims priority of application No. 18176711 (EP), filed on Jun. 8, 2018.
Prior Publication US 2021/0079257 A1, Mar. 18, 2021
Int. Cl. C09D 183/04 (2006.01); C08G 77/388 (2006.01); C08G 77/392 (2006.01); C08K 5/544 (2006.01); C09D 7/20 (2018.01); C09D 7/63 (2018.01)
CPC C09D 183/04 (2013.01) [C08G 77/388 (2013.01); C08G 77/392 (2013.01); C08K 5/544 (2013.01); C09D 7/20 (2018.01); C09D 7/63 (2018.01)] 14 Claims
OG exemplary drawing
 
1. A protective coating composition for a hard surface, wherein the protective coating composition comprises
an organic solvent in an amount greater than 50 weight percent based on a total weight of the protective coating composition; and
a polysiloxane having the general formula (I):
(R8)3-p(R7O)pSi-M-Z—B—Si(R3)(R4)—[—O—Si(R1)(R2)—]n-A-Y-L-Si(OR5)m(R6)3-m  (I)
wherein:
R1, R2, R3, R4, R5, R6, R7 and R8 are independently an alkyl group having from 1 to 8 carbon atoms;
Y and Z are independently a divalent linking group selected from the group consisting of urea, urethane, oxygen atom, sulfur atom and alkylene having from 1 to 8 carbon atoms;
A, B, L and M are independently a divalent linking group selected from the group consisting of alkylene having from 1 to 8 carbon atoms, with the proviso that if the combined linking groups formed by -A-Y-L-and-M-Z—B— are independently an alkylene, then the alkylene is independently different from ethylene;
n is an integer from 5 to 1500; and
m and p are independently an integer from 1 to 3.