Patent ID: 11926688
Assignee: BRIDGESTONE AMERICAS TIRE OPERATIONS, LLC
Field: Other special machines (Mechanical engineering)
Classification: CPC C  B  G | IPC B  C  G

Claim 0:
1. A process for producing a cured polymeric product, comprising providing an additive manufacturing device comprising a source of actinic radiation, an exterior support structure, an interior tank capable of containing a liquid mixture, and an interior support structure,
providing an actinic radiation curable polymeric mixture to the interior tank, wherein the actinic radiation curable polymeric mixture comprises
(a) a polyfunctionalized diene monomer-containing polymer having a formula as follows:
[P][F]n where P represents a diene polymer chain, F represents a functional group, n is 2 to about 15, and each F is selected from the group consisting of cyanoacrylate, epoxide, aziridine, thiopeoxide, and combinations thereof;
(b) optionally a chain extender based upon F or reactive with F;
(c) at least one actinic radiation sensitive photoinitiator;
(d) optionally, a photosensitizer; and
(e) a polyfunctional crosslinker reactive with F,
wherein the polyfunctionalized diene monomer-containing polymer (a) is present in an amount of 1-100 parts, the chain extender (b) is present in an amount of 0-99 parts, and the at least one actinic radiation sensitive photoinitiator (c) is present in an amount of about 1 part to about 10 parts (per 100 total parts of (a) and (b)),

repeatedly forming upon a support structure a layer from the actinic radiation curable polymeric mixture, and
using actinic radiation to cure each layer,
thereby producing the cured polymeric product.