[특허]Focused heat extrusion process for manufacturing powder coating compositions

Focused heat extrusion process for manufacturing powder coating compositions 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B29C-047/38 B29C-047/78 B29C-047/92
출원번호	UP-0809595 (2004-03-25)
등록번호	US-7666338 (2010-04-09)
발명자 / 주소	Ferencz, Joseph M. Gaspar, Vincent A.
출원인 / 주소	PPG Industries Ohio, Inc.
대리인 / 주소	Meyers, Diane R.
인용정보	피인용 횟수 : 0 인용 특허 : 21

초록 ▼

An extrusion process for manufacturing powder coating compositions is disclosed. The process generally includes a shear mixing step done at ambient temperature and a focused heating step in which the shear mix is heated to a higher temperature for a shorter time than in conventional methods. The focused heating provides for a shorter heat history, resulting in enhanced coating properties. The mixture may be cooled before it leaves the extruder.

대표청구항 ▼

What is claimed is: 1. A process for manufacturing powder coatings comprising: A) feeding starting materials to an extruder; B) shear mixing the starting materials at ambient temperature in a first portion of the extruder; and C) melt mixing the material from step B in a second portion of the extruder so as to achieve a melt mix, wherein the starting materials comprise a resin and a crosslinking agent. 2. The process of claim 1 further comprising: D) cooling the melt mix of step C in a third portion of the extruder. 3. The process of claim 1, wherein the first portion forms about 25% to about 40% of the length of the extruder. 4. The process of claim 1, wherein the second portion forms about 25% to about 40% of the length of the extruder. 5. The process of claim 2, wherein the third portion forms about 25% to 40% of the length of the extruder. 6. The process of claim 2, wherein the temperature of the melt mix is reduced by about 10° C. to 35° C. prior to exiting the extruder. 7. The process of claim 1, wherein the powder coating is a thermosetting powder coating. 8. The process of claim 1, wherein the material of step B is melt mixed at a temperature of about 70° C. to 150° C. 9. An extrusion process for manufacturing powder coating compositions from starting materials, wherein the extruder is divided into three portions, an initial ambient portion, an intermediate heated portion, and a final cooled portion, and wherein the starting materials comprise a resin and a crosslinking agent. 10. The extrusion process of claim 9, wherein the heated portion of the extruder forms about 35% to about 40% of the length of the extruder. 11. The extrusion process of claim 9, wherein the ambient portion of the extruder forms about 25% to about 32% of the length of the extruder. 12. The extrusion process of claim 9, wherein the heated portion of the extruder heats the starting materials to a temperature 40° C. to 140° C. higher than the temperature of the starting materials in the initial, ambient portion. 13. The process of claim 1, wherein the melt mix is subjected to focused heating. 14. The process of claim 13, wherein the focused heating comprises heating the shear mix to a temperature of 70° C. to 150° C. for 1 to 30 seconds.

이 특허에 인용된 특허 (21)

Giezen, Franciscus Egenius; Jongboom, Remigius Oene Jules; Feil, Herman; Gotlieb, Kornelis Fester; Boersma, Arjen, Biopolymer nanoparticles.
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Malhotra Shadi L.,CAX, Coated labels.
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Jenkins Francis Edward (Wilmington DE) Tynan Daniel Gregory (Wilmington DE), Continuous process for preparing particulate microporous, open-celled polymer structures in a screw-type extruder.
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Daly, Andrew T.; Decker, Owen H.; Wursthorn, Karl R.; Houda, Frank R.; Grundowski, Leo T.; Ernst, Carl W., Continuous processing of powder coating compositions.
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Hawkins Michael G. ; Chang Hui ; Chung Joo T. ; Dewan Jennifer E. ; Ianni John J. ; Kittelberger J. Stephen ; Leonardo Joseph L. ; Lincoln Timothy L. ; Kenney Yvonne M., Feedback control system for polymer modification of toner resins and toners.
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Williams Theodore J. ; Klein Robert R., Ink compositions.
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Illing Gerhard (Gross-Umstadt DEX), Method and apparatus for the production of thermoplastic caprolactam containing molding compositions.
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Allen Martin A. (Dawsonville GA) Fetcko John T. (Cumming GA), Method of continuously formulating and applying a hot melt adhesive.
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Schimmel Karl F. (Verona PA) Pierce Percy E. (Monroeville PA) Jones James E. (Lower Burrell PA), Novel pigment paste for cationic electrodeposition.
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Anja Couperus NL; Tjerk Groenman NL; Stephane Carlier BE, Pigment concentrate.
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Becher David Z. (Allison Park PA) Christenson Roger M. (Gibsonia PA) Coalson Richard L. (Gibsonia PA) Pierce Percy E. (Monroeville PA) Schimmel Karl F. (Verona PA), Pigment dispersants for coating compositions.
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Sherman, Audrey A.; Mazurek, Mieczyslaw H.; Romanko, Walter R.; Hyde, Patrick D.; Wong, Roy; Everaerts, Albert I., Polymer mixtures containing polydiorganosiloxane urea-containing components.
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Chang Hui (Pittsford NY) Sokol Jeffrey H. (Rochester NY) Leonardo Joseph L. (Penfield NY), Process for preparing toner particles.
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Hurley James M. ; Brian Bernd B. ; Tuttle Mary E. ; Popovski Bill, Process for producing customized thermoplastic resins.
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Allan, Peter Stewart; Browne, Michael Andrew; Langeveld, Elfriede Maria; Lloyd, Paul; Manley, Reginald; Rennie, Paul Reissen; Stocker, Frederick Edmund; Tarverdi, Karnik; Thorpe, Jacqueline Marie, Process for the production of a deodorant or antiperspirant product.
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Naomi Furgiuele ; John M. Torkelson ; Klementina Khait, Processes of mixing, compatibilizing, and/or recylcing blends of polymer materials through solid state shear pulverization, and products by such processes.
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Khait Klementina, Reconstituted polymeric materials derived from post-consumer waste, industrial scrap and virgin resins made by solid sta.
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Khait Klementina, Reconstituted polymeric materials derived from post-consumer waste, industrial scrap and virgin resins made by solid state shear pulverization.
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Malhotra Shadi L. (Mississauga CAX), Recording sheets containing purine, pyrimidine, benzimidazole, imidazolidine, urazole, pyrazole, triazole, benzotriazole.
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Prince William D. (Charleston WV) Keller ; II George E. (S. Charleston WV) Fraser William A. (Mahopac NY) Leung Pak S. (Highland Mills NY), Spray application of plastics additives to polymers.
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Proper James M. (Webster NY) Erhardt Peter F. (Webster NY), System for controlling the color of toner mixtures.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
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연합인증

Focused heat extrusion process for manufacturing powder coating compositions 원문보기

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Focused heat extrusion process for manufacturing powder coating compositions 원문보기

초록 ▼

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연구과제 타임라인

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