# US 8,771,602 B2 · Resin production apparatus and resin production method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,771,602 B2 - Document ID: US8771602B2 - Status: Granted - Kind: B2 - Application number: 12/946,382 - Filed: 2010-11-15 - Published: 2011-06-23 - Granted: 2014-07-08 - Earliest claimed: 2009-12-22 - Assignees: Nitto Denko Corporation - Applicants: Shuzo Fujiwara; Yasuhide Suzuki; Yasuhiko Okuda; Tetsuya Hirose - Inventors: Shuzo Fujiwara; Yasuhide Suzuki; Yasuhiko Okuda; Tetsuya Hirose - Web page: https://patentgrep.com/patent/US8771602B2 ## CPC - B01J 10/005: {carried out at high temperatures in the presence of a molten material} - B01F 27/091: with elements co-operating with receptacle wall or bottom, e.g. for scraping the receptacle wall - B01F 27/806: with vertical displacement of the stirrer, e.g. in combination with means for pivoting the stirrer about a vertical axis in order to co-operate with different receptacles - B01F 27/90: with paddles or arms - B01J 4/007: {provided with moving parts} - B01J 19/0013: {Controlling the temperature of the process} - B01J 19/002: {Avoiding undesirable reactions or side-effects, e.g. avoiding explosions, or improving the yield by suppressing side-reactions} - B01J 19/0066: {Stirrers (mixing per se B01F)} - B01J 19/18: Stationary reactors having moving elements inside (B01J19/08, B01J19/26 take precedence) - C09J 133/06: of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical - B01J 2204/005: the outlet side being of particular interest - B01J 2219/00094: Jackets - B01J 2219/00254: Formation of unwanted polymer, such as "pop-corn" - B01J 2219/00779: Baffles attached to the stirring means - B01J: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS - B01F: MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING (mixing paints B44D3/06) - C09J: ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES (preparation of glue or gelatine C09H) ## Abstract A resin production apparatus of the present invention includes: a reactor vessel having a vessel main body which polymerizes an ingredient to produce a thermoplastic synthetic resin which solidifies at room temperature and storing the synthetic resin in the molten state, an output mechanism disposed at a bottom part of the vessel main body, which outputs the synthetic resin in the molten state, and a temperature adjustment mechanism which adjusts temperatures of the vessel main body and the output mechanism so as to maintain the molten state of the synthetic resin; a cooling mechanism arranged below the reactor vessel, which continuously cools and solidifies the synthetic resin output from the output mechanism; and a crushing mechanism which crushes the synthetic resin fed out from the cooling mechanism. ## Claims ### Claim 1 A resin production apparatus, comprising: a reactor vessel having a vessel main body which polymerizes an ingredient to prepare a thermoplastic synthetic resin which solidifies at room temperature and storing the synthetic resin in the molten state, an output mechanism which is disposed at a bottom part of the vessel main body and outputs the synthetic resin in the molten state, and a temperature adjustment mechanism which adjusts temperatures of the vessel main body and the output mechanism so as to maintain the molten state of the synthetic resin; a crushing device having a cooling mechanism arranged below the reactor vessel, which continuously cools and solidifies the synthetic resin output from the output mechanism, and a crushing mechanism which crushes the synthetic resin fed out from the cooling mechanism; and a lower gas supply mechanism comprising a valve cleaning mechanism that ejects to the outside an ingredient or accumulated synthetic resin. ### Claim 2 (depends on 1) The resin production apparatus according to claim 1, wherein: the output mechanism has an output port formed on the vessel main body, an output tube extending from the output port to the crushing device, and a Y-valve having a valve element disposed at the output port, which moves forward/back the valve element to open/close the output port. ### Claim 3 (depends on 1) The resin production apparatus according to claim 1, wherein: the output mechanism further includes a feeding pump connected to an output tube extending from an output port to the crushing device, which feeds out the synthetic resin to the crushing device. ### Claim 4 (depends on 1) The resin production apparatus according to claim 1, wherein: the lower gas supply mechanism has an inert gas inflow entrance disposed lower than the top surfaces of the synthetic resin and the ingredient, through which an inert gas enters the vessel main body; and an inflow entrance open/close mechanism which moves forward/back a valve element to open/close the inert gas inflow entrance. ### Claim 5 (depends on 1) The resin production apparatus according to claim 1, further comprising: a separating device which exhausts ingredient remaining after the polymerization, to the outside the vessel main body. ### Claim 6 (depends on 1) The resin production apparatus according to claim 1, wherein: the ingredient is a (meth)acrylic monomer, the polymerization is bulk polymerization, and the synthetic resin is a (meth)acrylic oligomer. ### Claim 7 (depends on 1) The resin production apparatus according to claim 1 further comprising the lower gas supply mechanism that is tilted at a predetermined tilt angle θ, wherein θ is greater than 0°. ### Claim 8 (depends on 1) The resin production apparatus according to claim 1, wherein the valve cleaning mechanism comprises: a valve member which opens/closes a gas pipe; an extruder disposed in the lower gas supply mechanism and capable of moving forward/back; a cleaning pipe which is connected to a cylindrical member of the lower gas supply mechanism and is in communication with a collection tank; a second valve member which opens/closes the cleaning pipe; and an extruder drive device which moves forward/back the extruder.