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.:
Date of Patent:
Sep. 17, 2024
Filed:
Aug. 25, 2022
Maxell, Ltd., Kyoto, JP;
Hiroshi Ota, Kyoto, JP;
Hiroki Sakata, Kyoto, JP;
MAXELL, LTD., Kyoto, JP;
Abstract
A model material clear composition comprises an ethylenically unsaturated monomer (Al) having at least one selected from the group consisting of a dicyclopentenyl group and a dicyclopentanyl group, at least one photopolymerization initiator selected from the group consisting of an acylphosphine oxide-based photopolymerization initiator and an α-hydroxyacetophenone-based photopolymerization initiator, a hindered amine-based polymerization inhibitor, and a phenolic antioxidant, and contents (% by mass) of the initiator, the polymerization inhibitor, and the antioxidant satisfy Formula (1): content of photopolymerization initiator≥content of polymerization inhibitor≥content of oxidation inhibitor, and Formula (2): 1≤√ content of photopolymerization initiator/√[(content of polymerization inhibitor×10)+(content of antioxidant×100)]≤800.