公开(公告)号：US20200308426A1

公开(公告)日：2020-10-01

申请号：US16954632

申请日：2018-12-19

Applicant: PERSTORP AB

Inventor： David JAMES ,  Vanessa MAURIN ,  Pia WENNERBERG

IPC: C09D11/101 ,  C08F222/10 ,  C08G59/24 ,  C08G59/68 ,  C08G65/18 ,  C08L63/00 ,  C08L67/04 ,  C09D11/104 ,  B33Y70/00

Abstract: The present invention refers to a hybrid photopolymer composition for additive manufacturing, comprising 50-95% by weight of a free radically curable-component, farther comprising at least one (meth)acrylate monomer or oligomer, 5-49% by weight of a cationically curable component, further comprising a cycloaliphatic epoxide, an oxetane mixture, containing a monooxetane compound and a polyoxetane compound, and a thermoplastic polycaprolactone with a molecular weight of 20,000-100,000 g/mol, a free radical photoinitiator, a UV blocker, a cationic photoinitiator, optionally a cationic photosensitiser, and optionally a thermal initiator, wherein the percent by weight is based on the total weight of the photopolymer' composition. The invention also relates to the use of a photopolymer composition according to the present invention for producing a three-dimensional object through additive manufacturing and to a three-dimensional object obtained through additive manufacturing using the photopolymer composition—according the present invention.

公开(公告)号：US20210070919A1

公开(公告)日：2021-03-11

申请号：US16642041

申请日：2018-08-30

Applicant: PERSTORP AB

Inventor： Stefan LUNDMARK ,  Pia WENNERBERG ,  David JAMES

IPC: C08G18/34 ,  C08G18/67 ,  C08G18/73 ,  C08G18/75 ,  C08G18/76 ,  C08G18/78 ,  C08G18/79

Abstract: Disclosed is an oligomer or polymer obtained by reacting at least one monomeric, oligomeric or polymeric isocyanate having two or more isocyanate groups with 2-hydroxy-3-butenoic acid and/or at least one alkyl ester of 2-hydroxy-3-butenoic acid. A composition comprising a said oligomer or polymer is also disclosed.