	US 12,109,336 B2
	Sealing agent for genitals
Eiji Kondo, Kyoto (JP); Hiroaki Maeda, Kyoto (JP); and Shingo Kawabata, Kyoto (JP)
Assigned to SANYO CHEMICAL INDUSTRIES, LTD., Kyoto (JP)
Filed by SANYO CHEMICAL INDUSTRIES, LTD., Kyoto (JP)
Filed on Oct. 26, 2021, as Appl. No. 17/510,574.
Application 17/510,574 is a division of application No. 16/607,180, abandoned, previously published as PCT/JP2018/017127, filed on Apr. 27, 2018.
Claims priority of application No. 2017-089424 (JP), filed on Apr. 28, 2017.
Prior Publication US 2022/0040386 A1, Feb. 10, 2022
Int. Cl. A61L 31/14 (2006.01); A61L 31/06 (2006.01); C08G 18/10 (2006.01); C08G 18/77 (2006.01)

CPC A61L 31/14 (2013.01) [A61L 31/06 (2013.01); C08G 18/10 (2013.01); C08G 18/77 (2013.01)]

13 Claims

1. A method for sealing a reproductive organ, comprising:

applying a sealant to a reproductive organ,

curing the sealant, and

peeling off the cured sealant from the reproductive organ,

wherein the sealant comprises:

an NCO-terminated urethane prepolymer (UP) that is a reaction product of a polyisocyanate component (A) and a polyol component (B) containing a hydrophilic polyol (B1), wherein the polyisocyanate component (A) comprises a fluorine-containing non-aromatic polyisocyanate compound (A1), and the NCO-terminated urethane prepolymer (UP) has a fluorine content of 1 to 23 wt % based on the weight of the NCO-terminated urethane prepolymer (UP), and

when the sealant is spread to a thickness of 120 to 150 μm and cured, a sample of the sealant is obtained as a cured product (X) having a storage modulus G′ of 200 to 2,000 kPa at 25° C.