US 12,104,000 B2
Photopolymerizable compositions including a polypropylene oxide component, articles, and methods
Ahmed S. Abuelyaman, Woodbury, MN (US); Zeba Parkar, Marietta, GA (US); and John M. Riedesel, San Jose, CA (US)
Assigned to Solventum Intellectual Properties Company, Maplewood, MN (US)
Appl. No. 16/960,566
Filed by 3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US)
PCT Filed Mar. 6, 2019, PCT No. PCT/IB2019/051815
§ 371(c)(1), (2) Date Jul. 8, 2020,
PCT Pub. No. WO2019/175716, PCT Pub. Date Sep. 19, 2019.
Claims priority of provisional application 62/643,431, filed on Mar. 15, 2018.
Prior Publication US 2020/0332046 A1, Oct. 22, 2020
Int. Cl. C08F 299/02 (2006.01); B29C 64/135 (2017.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B33Y 70/00 (2020.01); C07C 69/54 (2006.01); C07C 271/22 (2006.01); C08F 2/46 (2006.01); C08F 2/50 (2006.01); C08G 61/04 (2006.01); B29C 64/393 (2017.01); B29K 71/00 (2006.01); B33Y 50/02 (2015.01)
CPC C08F 299/024 (2013.01) [B29C 64/135 (2017.08); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 70/00 (2014.12); C07C 69/54 (2013.01); C07C 271/22 (2013.01); B29C 64/393 (2017.08); B29K 2071/02 (2013.01); B33Y 50/02 (2014.12)] 20 Claims
 
1. A photopolymerizable composition comprising a blend of:
a. 1 to 80 wt. %, inclusive, of at least one polypropylene oxide component based on the total weight of the photopolymerizable composition, wherein the at least one polypropylene oxide component is of any of Formula VII, Formula VIII, Formula IX, Formula X, Formula XI, or Formula XII:

OG Complex Work Unit Chemistry
wherein n is 5 to 70;

OG Complex Work Unit Chemistry
wherein n is 5 to 70 or 5 to 40;

OG Complex Work Unit Chemistry
wherein n is 5 to 70 or 15 to 20;

OG Complex Work Unit Chemistry
wherein n is 5 to 70 or 15 to 20;

OG Complex Work Unit Chemistry
wherein n is 5 to 70 or 15 to 20; or

OG Complex Work Unit Chemistry
n is 5 to 70 or 15 to 20;
b. optionally 30 wt. % or greater of at least one urethane component, if present, based on the total weight of the photopolymerizable composition;
with the proviso that when the at least one urethane component is not present then the at least one polypropylene oxide component is of Formulae IX, X, or XI, and
with the proviso that when the at least one polypropylene oxide component is of Formula VII, then the at least one urethane component is present;
c. optionally at least one multifunctional reactive diluent in an amount of 1 to 30 wt. %, inclusive, if present, based on the total weight of the photopolymerizable composition;
d. 0.1 to 5 wt. %, inclusive, of at least one initiator; and
e. an optional inhibitor in an amount of 0.001 to 1 wt. %, inclusive, if present, based on the total weight of the photopolymerizable composition.