公开(公告)号：WO2021217009A1

公开(公告)日：2021-10-28

申请号：PCT/US2021/028853

申请日：2021-04-23

Applicant: ZVERSE, INC.

Inventor： CARRINGTON, John, Carrol, Jr. ,  HENDERSON, Scott, A.

IPC: A41D13/11 ,  A61F9/06

Abstract: A face shield assembly comprises a holder adapted to be worn on the body of a wearer. The holder has a support portion and a separate attachment portion connected to the support portion. The support portion of the holder defines an opening through which the wearer's neck is received or, in another embodiment, on the head of the wearer. In addition, a shield is removably connected to the attachment portion of the holder, the shield being formed of a transparent material. The shield further has a curved configuration around a generally vertical axis as well as being narrower at one end than the other.

公开(公告)号：WO2016196159A1

公开(公告)日：2016-12-08

申请号：PCT/US2016/034239

申请日：2016-05-26

Applicant: ZVERSE, INC.

Inventor： KRONBERG, James W.

IPC: C04B11/00 ,  B23B5/22 ,  C08J3/28 ,  C09K11/06

CPC classification number: B05D3/067 ,  B05D1/02 ,  B05D1/18 ,  B05D3/0236 ,  B05D7/577 ,  B33Y80/00 ,  B33Y99/00 ,  C09D167/06

Abstract: A process for imparting improved toughness and durability, improving the surface appearance, and enhancing the coloration of a porous gypsum article created by 3D printing, casting or other means. The process includes the steps of first warming and drying the article; next, dipping it while warm into a bath of ultraviolet-activated liquid polyester resin at a lower temperature than the article, so the heat of the article lowers the resin's viscosity as air in the pores contracts and draws the resin in. The resin is chosen to have an index of refraction after curing as close as possible to that of pure gypsum. The resin is cured with ultraviolet light before applying a surface finishing coat to the cured resin by a second dipping into the same resin followed by curing or by spray-painting or other coating technique.

Abstract translation: 提供改善的韧性和耐久性，改善表面外观以及增强由3D印刷，铸造或其它方法产生的多孔石膏制品的着色的方法。 该方法包括首先加热和干燥制品的步骤; 接下来，在比制品低的温度下将其浸入紫外线活化的液体聚酯树脂浴中，因此制品的热量随着空气中的空气收缩而降低树脂的粘度，并吸引树脂。选择树脂 固化后的折射率尽可能接近纯石膏的折射率。 通过第二次浸渍到相同的树脂中，然后通过喷涂或其它涂覆技术将树脂固化，然后将表面处理涂层施加到固化树脂上。