US 12,145,313 B2
Method of manufacturing rubber product
Yasuo Ohsawa, Tokyo (JP)
Assigned to BRIDGESTONE CORPORATION, Tokyo (JP)
Appl. No. 17/609,714
Filed by BRIDGESTONE CORPORATION, Tokyo (JP)
PCT Filed Nov. 26, 2019, PCT No. PCT/JP2019/046197
§ 371(c)(1), (2) Date Nov. 8, 2021,
PCT Pub. No. WO2020/255443, PCT Pub. Date Dec. 24, 2020.
Claims priority of application No. 2019-112262 (JP), filed on Jun. 17, 2019.
Prior Publication US 2022/0220278 A1, Jul. 14, 2022
Int. Cl. B29C 64/153 (2017.01); B29C 64/141 (2017.01); B29C 64/268 (2017.01); B33Y 10/00 (2015.01); B33Y 70/00 (2020.01); C08K 3/22 (2006.01)
CPC B29C 64/153 (2017.08) [B29C 64/141 (2017.08); B29C 64/268 (2017.08); B33Y 10/00 (2014.12); B33Y 70/00 (2014.12); C08K 3/22 (2013.01); C08K 2003/2206 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A method of manufacturing a rubber product, the method comprising:
performing adhesion prevention treatment on uncrosslinked rubber powder, which is a material of the rubber product, to prevent mutual adhesion of the uncrosslinked rubber powder; and
sequentially and repeatedly forming layers of the rubber product layer-by-layer by supplying the uncrosslinked rubber powder, on which the adhesion prevention treatment has been performed, and irradiating the supplied uncrosslinked rubber powder with an electron beam to crosslink the uncrosslinked rubber powder, wherein the formed layers follow a shape of the rubber product.