Loading patent…
AssigneeZms, LLC
InventorsDavid S. Soane, Michael R. Houston, Toshiaki Hino
Estimating the term…
This disclosure describes a processing approach for the rapid and efficient in-situ polymerization of specially prepared precursor mixtures to achieve near-net-shape production of objects/articles with exact dimensions. The process relies on the use of polymerizable compositions comprised of a mixture of a dead polymer, a reactive plasticizer and an initiator, which compositions are semi-solid-like prior to curing and induce low shrinkage upon curing as a result of their partially polymerized nature prior to processing. The partially polymerized nature of the precursor mixtures also allows extremely impact-resistant objects/articles to be fabricated. Other desirable engineering property attributes can similarly be achieved via the judicious blending of starting ingredients in formulating the polymerizable (curable) mixtures.
A polymerizable composition comprising a mixture of an optically clear dead polymer, a reactive plasticizer in an amount to render the composition semi-solid and malleable, and an initiator, the dead polymer and reactive plasticizer exhibiting compatibility at temperatures not higher than 100° C., and wherein the polymerizable composition is semi-solid and malleable and, when polymerized, remains optically clear and exhibits low shrinkage.
A polymerizable composition comprising a mixture of a biodegradable dead polymer, a reactive plasticizer in an amount to render the composition semi-solid and malleable, and an initiator, wherein the polymerizable composition is semi-solid and malleable and, when polymerized, exhibits low shrinkage.
Dependencies are inferred from the claim text.