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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11130874 B1

PDFFull Text
Date of Patent:
Sep. 28, 2021

Filed:

Dec. 19, 2018

Hybrid photopolymer composition for additive manufacturing

Applicant:

Perstorp Ab, Perstorp, SE;

Inventors:

David James, Lund, SE;

Vanessa Maurin, Perstorp, SE;

Pia Wennerberg, Lund, SE;

Assignee:

PERSTORP AB, Perstorp, SE;

Attorney:

Polsinelli PC

Primary Examiner:

Jessica Whiteley

Int. Cl.
CPC ...
C08F 2/46 (2006.01); C08F 2/50 (2006.01); C08G 61/04 (2006.01); C09D 11/101 (2014.01); B33Y 70/00 (2020.01); C08F 222/10 (2006.01); C08G 59/24 (2006.01); C08G 59/68 (2006.01); C08G 65/18 (2006.01); C08L 63/00 (2006.01); C08L 67/04 (2006.01); C09D 11/104 (2014.01);
U.S. Cl.
CPC ...
C09D 11/101 (2013.01); B33Y 70/00 (2014.12); C08F 222/103 (2020.02); C08G 59/24 (2013.01); C08G 59/688 (2013.01); C08G 65/18 (2013.01); C08L 63/00 (2013.01); C08L 67/04 (2013.01); C09D 11/104 (2013.01); C08L 2205/05 (2013.01);
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.

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