公开(公告)号：US20250129263A1

公开(公告)日：2025-04-24

申请号：US18685541

申请日：2022-08-03

Applicant: BASF SE

Inventor： Wei Zheng FAN ,  Zhi Zhong CAI ,  Li CHEN ,  Chong Xi WANG

IPC: C09D175/14 ,  B29C64/124 ,  B29K75/00 ,  B29K96/04 ,  B29K105/00 ,  B33Y10/00 ,  B33Y70/00 ,  B33Y80/00 ,  C09D175/12

Abstract: The present invention relates to a curable composition, which comprises: (A) at least one unreactive blocked diisocyanate; (B) at least one unreactive blocked diamine; (C) at least one reactive component; and (D) at least one photo-initiator, wherein component (B) is formed by blocking diamine with a ligand; to a process of forming a 3D-printed object from the same and a 3D-printed object prepared therefrom. The curable composition exhibits excellent long-term stability, while the 3D-printed object obtained therefrom maintains good mechanical properties

公开(公告)号：US20240400856A1

公开(公告)日：2024-12-05

申请号：US18700742

申请日：2022-10-07

Applicant: BASF SE

Inventor： Wei Zheng FAN ,  Zhi Zhong CAI ,  Yan Sheng LI ,  Pin Lan CHEN

IPC: C09D175/04 ,  B29C64/153 ,  B29K75/00 ,  B33Y10/00 ,  B33Y70/00 ,  C08J9/36

Abstract: This disclosure relates to thermoplastic elastomer (TPE) powders, wherein the average particle size D50 of the TPE powders is in the range from 10 μm to 1 mm and at least one of average sphericity A and average sphericity B of TPE powders is no more than 0.6; to a process of preparing the TPE powders and to a method of preparing the 3D molding. The powders and the method according to the present invention allow to prepare a 3D molding with low density, high rebound resilience and good mechanical properties, especially a 3D molding comprising multiple areas having different properties.

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.

公开(公告)号：US20240010812A1

公开(公告)日：2024-01-11

申请号：US18037337

申请日：2021-11-16

Applicant: BASF SE

Inventor： Wei Zheng FAN ,  Yan Sheng Ll ,  Li CHEN ,  Zhi Zhong CAI ,  Xia MENG

IPC: C08K3/32 ,  C08L77/00 ,  C08K5/3492 ,  B33Y70/00

CPC classification number: C08K3/32 ,  C08L77/00 ,  C08K5/34928 ,  B33Y70/00 ,  C08L2205/025 ,  C08L2201/02 ,  C08K2003/329 ,  C08K2003/323 ,  B29C64/153

Abstract: The present disclosure relates to a pulverulent composition comprising (a) at least one phosphate flame retardant synergist selected from hydrogen phosphate salt, dihydrogen phosphate salt, hydrate thereof and mixture thereof; (b) at least one flame retardant; and (c) at least one thermoplastic polymer. The present disclosure also relates to a 3D-printed object formed from the pulverulent composition and a process of forming 3D-printed object. The pulverulent composition shows good printability and the 3D-printed objects obtained from the thermoplastic powders not only have excellent flame-retardant performance but also have good mechanical properties.

公开(公告)号：US20240240041A1

公开(公告)日：2024-07-18

申请号：US18558420

申请日：2022-04-29

Applicant: BASF SE

Inventor： Fan ZHANG ,  Jie LU ,  Chong Xi WANG ,  Zhi Zhong CAI

IPC: C09D11/38 ,  B29C64/112 ,  B29C64/124 ,  B29C64/40 ,  B33Y10/00 ,  B33Y70/10 ,  B33Y80/00

CPC classification number: C09D11/38 ,  B29C64/112 ,  B29C64/124 ,  B29C64/40 ,  B33Y10/00 ,  B33Y70/10 ,  B33Y80/00

Abstract: This disclosure relates to a radiation-curable composition comprising (A) at least one water-soluble monofunctional ethylenically unsaturated monomer; (B) at least one water-soluble non-curable component, wherein the weighted average melting point of component (B) is more than 22° C. preferably more than 25° C.; and (C) at least one photoinitiator.

公开(公告)号：US20240141086A1

公开(公告)日：2024-05-02

申请号：US18278445

申请日：2022-02-11

Applicant: BASF SE

Inventor： Fan ZHANG ,  Chong Xi WANG ,  Zhi Zhong CAI

IPC: C08F226/10 ,  B29C64/129 ,  C08F2/50 ,  C08F222/10 ,  C08G59/24 ,  C08G59/42 ,  C08G59/50 ,  C08K5/5397 ,  C09D11/101

CPC classification number: C08F226/10 ,  B29C64/129 ,  C08F2/50 ,  C08F222/102 ,  C08F222/1065 ,  C08F222/1067 ,  C08G59/245 ,  C08G59/42 ,  C08G59/5033 ,  C08K5/5397 ,  C09D11/101 ,  B33Y10/00

Abstract: This disclosure relates to a curable composition comprising (a) at least one light polymerizable liquid; (b) at least one epoxy precursor dissolved in component (a); and (c) at least one photoinitiator; wherein the curable composition exhibits no more than 15% increase in viscosity at 25° C. after 7 days at room temperature.

公开(公告)号：US20240084109A1

公开(公告)日：2024-03-14

申请号：US18269966

申请日：2021-12-10

Applicant: BASF SE

Inventor： Wei Zheng FAN ,  Zhi Zhong CAI ,  Yan Sheng LI

IPC: C08K9/06 ,  B33Y70/10 ,  C08K3/36 ,  C08K5/5415 ,  C09D11/102 ,  C09D177/06

CPC classification number: C08K9/06 ,  B33Y70/10 ,  C08K3/36 ,  C08K5/5415 ,  C09D11/102 ,  C09D177/06 ,  B33Y10/00 ,  C08K2201/005 ,  C08K2201/006 ,  C08K2201/011

Abstract: The present disclosure relates to a thermoplastic pulverulent composition comprising (a) at least one silica particle treated with alkoxysilane; and (b) at least one thermoplastic polymer. The present disclosure also relates to a 3D-printed object formed from the thermoplastic pulverulent composition and a process of forming the 3D-printed object. The thermoplastic pulverulent composition shows good powder flowability and the printed object obtained from said thermoplastic pulverulent composition surprisingly shows high elongation at break, high impact strength, good toughness and low surface roughness.

公开(公告)号：US20240409752A1

公开(公告)日：2024-12-12

申请号：US18700739

申请日：2022-10-07

Applicant: BASF SE

Inventor： Zhi Zhong CAI ,  Wei Zheng FAN ,  Yan Sheng LI ,  Pin Lan CHEN

IPC: C09D5/03 ,  B29B17/04 ,  B29C64/153 ,  B29K75/00 ,  B29K105/00 ,  B33Y10/00 ,  B33Y70/00 ,  C09D175/04

Abstract: This disclosure relates to thermoplastic polyurethane (TPU) powders derived from expanded TPU and/or molding part thereof, wherein the average particle size D50 of the powders is no more than 1 mm, to a 3D molding formed from the same and to a process of forming the 3D molding. The TPU powders of the present invention can be used to prepare 3D products with low density, high rebound resilience and good mechanical properties, and the TPU powders of the present invention can be derived from a wide range of sources, and the TPU powders and 3D products of the present invention can be easily reused.

公开(公告)号：US20240376246A1

公开(公告)日：2024-11-14

申请号：US18691926

申请日：2022-09-09

Applicant: BASF SE

Inventor： Xiao Yu SUN ,  Dong LIANG ,  Chang Xi LI ,  Hai Sheng WU ,  Li Chao ZHU ,  Jia Yue HUANG ,  Zhi Zhong CAI

IPC: C08G18/02 ,  C08G18/20 ,  C08G18/32 ,  C08G18/48

Abstract: The present invention relates to a one-pot process for the production of poly carbodiimide cured polymers. comprising a reaction of (a) at least one polycarbodiimide with two or more carbodiimide functionalities per molecule. (b) at least one polyol with two or more hydroxyl functionalities per molecule, and (c) at least one cyclic carboxylic anhydride.

公开(公告)号：US20240294688A1

公开(公告)日：2024-09-05

申请号：US18572212

申请日：2022-06-15

Applicant: BASF SE

Inventor： Zhi Zhong CAI ,  Wei Zheng FAN ,  Yan Sheng LI

IPC: C08F290/06 ,  B33Y70/00 ,  B33Y80/00 ,  C08F2/50

CPC classification number: C08F290/067 ,  B33Y70/00 ,  B33Y80/00 ,  C08F2/50

Abstract: The present invention relates to a curable composition for 3D-printing, which comprises: (A) at least one reactive component: (B) at least one physical volatile agent; and (C) at least one photoinitiator, a process of forming a 3D-printed object from the same and a 3D-printed object prepared therefrom. The 3D-printed object formed from the composition has reduced density, stable dimension size, and uniform porous structure.