US 11,952,455 B2
Foam and composition for foam
Takabumi Kubo, Tokyo (JP); Tomoya Tanaka, Tokyo (JP); and Ryota Watanabe, Tokyo (JP)
Assigned to ALCARE CO., LTD., Tokyo (JP)
Appl. No. 16/474,865
Filed by ALCARE CO., LTD., Tokyo (JP)
PCT Filed Dec. 28, 2017, PCT No. PCT/JP2017/047376
§ 371(c)(1), (2) Date Jun. 28, 2019,
PCT Pub. No. WO2018/124303, PCT Pub. Date Jul. 5, 2018.
Claims priority of application No. 2016-258014 (JP), filed on Dec. 29, 2016.
Prior Publication US 2019/0322795 A1, Oct. 24, 2019
Int. Cl. A61L 15/26 (2006.01); A61L 15/42 (2006.01); A61L 27/26 (2006.01); A61L 27/56 (2006.01); A61L 28/00 (2006.01); C08G 18/00 (2006.01); C08G 18/08 (2006.01); C08G 18/42 (2006.01); C08G 18/48 (2006.01); C08G 18/73 (2006.01); C08G 18/76 (2006.01); C08L 1/06 (2006.01); C08L 1/28 (2006.01); C08L 5/06 (2006.01); C08L 75/04 (2006.01)
CPC C08G 18/76 (2013.01) [A61L 15/26 (2013.01); A61L 15/425 (2013.01); A61L 27/26 (2013.01); A61L 27/56 (2013.01); A61L 28/0015 (2013.01); A61L 28/0053 (2013.01); C08G 18/14 (2013.01); C08G 18/42 (2013.01); C08G 18/48 (2013.01); C08G 18/73 (2013.01); C08L 1/286 (2013.01); C08L 5/06 (2013.01)] 16 Claims
 
10. A composition for a foam comprising:
at least one polyol;
a compound having at least one isocyanate group; and
a hydrophilic polymer, wherein the hydrophilic polymer contains at least calcium alginate and 10 to 20.5 mass % water, wherein:
the foam is generated due to the reaction of water contained in the hydrophilic polymer,
the composition does not contain any surfactant, and
a content of the at least one polyol is 25 to 80 mass %;
a content of the compound having at least one isocyanate group is 5 to 30 mass %; and
a content of hydrophilic polymer is 5 to 50 mass %.