公开(公告)号：US20230002631A1

公开(公告)日：2023-01-05

申请号：US17774496

申请日：2020-10-19

Applicant: BASF SE

Inventor： Rui DING ,  Li CHEN

IPC: C09D11/101 ,  C08F220/58 ,  C08F220/34 ,  C08F220/28 ,  C08F226/06 ,  C09D11/107 ,  B33Y70/00 ,  B33Y10/00 ,  B33Y40/20 ,  B29C64/129 ,  B29C64/35

Abstract: The present invention relates to radiation curable compositions, comprising (A1) at least one water-soluble reactive diluent (A1); (A2) at least one water-soluble reactive oligomer (A2); (B) at least one reactive component selected from the group consisting of a water insoluble reactive diluent (B1a), a slightly water-soluble reactive diluent (B1b) and a water insoluble, or slightly water-soluble reactive oligomer (B2); and (C) optionally a photoinitiator (C), wherein the amount of component (A1) and (A2) is greater than 20% by weight, especially 30% by weight based on the amount of components (A1), (A2), (B1a), (B1b) and (B2) and the amount of components (B1a), (B1b) and (B2) is greater than 10% by weight, especially 20% by weight based on the amount of components (A1), (A2), (B1a), (B1b) and (B2); radiation curable composition, comprising (A1′) at least one slightly water-soluble reactive diluent (B1b); (A2) at least one water-soluble reactive oligomer (A2); (B) at least one reactive component selected from the group consisting of a water insoluble reactive diluent (B1a) and a water insoluble, or slightly water-soluble reactive oligomer (B2); and (C) optionally a photoinitiator (C), wherein the amount of component (B1b) and (A2) is greater than 40% by weight, especially 50% by weight based on the amount of components (A2), (B1a), (B1b) and (B2) and the amount of components (B1a), (B1b) and (B2) is greater than 10% by weight, especially 20% by weight based on the amount of components (A2), (B1a), (B1b) and (B2). The radiation curable compositions can be cleaned by pure water with no assistance of any solvent or detergent. The printed three-dimensional products have clean, smooth, tack-free surface after washing with water and sufficient post-curing. The fully cured three-dimensional products are high-temperature resistant and have excellent mechanical performance above glass transition temperature, e.g. 200° C.

公开(公告)号：US20240343941A1

公开(公告)日：2024-10-17

申请号：US18294185

申请日：2022-07-27

Applicant: BASF SE

Inventor： Rui DING ,  Zhi Zhong CAI ,  Yue WANG

IPC: C09D175/14 ,  B29C64/124 ,  B29C71/02 ,  B29C71/04 ,  B29K105/00 ,  B33Y10/00 ,  B33Y40/20 ,  B33Y70/00 ,  C08G18/04 ,  C08G18/32 ,  C08G18/50 ,  C08G18/67 ,  C08G18/79

CPC classification number: C09D175/14 ,  B33Y70/00 ,  C08G18/04 ,  C08G18/3206 ,  C08G18/324 ,  C08G18/3243 ,  C08G18/325 ,  C08G18/5027 ,  C08G18/672 ,  C08G18/798 ,  B29C64/124 ,  B29C71/02 ,  B29C71/04 ,  B29K2105/0002 ,  B29K2105/0094 ,  B29K2995/0077 ,  B29K2995/0089 ,  B33Y10/00 ,  B33Y40/20

Abstract: This disclosure relates to a dual-cure resin composition comprising (a) at least one photo-polymerizable compound; (b) at least one uretdione-containing compound having an average uretdione ring functionality of greater than 1; (c) at least one compound containing at least one isocyanate-reactive group; and (d) at least one photoinitiator; to a process of forming 3D objects by using the composition, to use of the composition for forming 3D objects and to 3D objects formed by using the composition.