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:
Dec. 10, 2024
Filed:
Jul. 26, 2019
Carbon, Inc., Redwood City, CA (US);
Justin Poelma, Sunnyvale, CA (US);
R. Nicholas Carmean, Mountain View, CA (US);
Matthew S. Menyo, San Francisco, CA (US);
Carbon, Inc., Redwood City, CA (US);
Abstract
Provided according to some embodiments is a polymerizable liquid useful for the production of a three-dimensional object comprised of polyurethane, polyurea, or a copolymer thereof by additive manufacturing, the polymerizable liquid comprising a mixture of: (a) a first blocked or reactive blocked prepolymer comprising a compound of the formula X(A), where X is a hydrocarbyl group, n is at least 3, and each A is an independently selected substituent of Formula I: (I) where R is a hydrocarbyl group, R' is O or NH, and Z is a blocking group; (b) a polyol and/or polyamine chain extender; (c) optionally a reactive diluent; and (d) a photoinitiator. A method of use of the polymerizable liquid to make a three-dimensional object by additive manufacturing and prepolymer compounds useful for the same are also provided.