DE69228019D1 - Verfahren zum Recycling von wasserabsorbierendem feinkörnigem Gut in eine Polymerisationsvorrichtung - Google Patents
Verfahren zum Recycling von wasserabsorbierendem feinkörnigem Gut in eine PolymerisationsvorrichtungInfo
- Publication number
- DE69228019D1 DE69228019D1 DE69228019T DE69228019T DE69228019D1 DE 69228019 D1 DE69228019 D1 DE 69228019D1 DE 69228019 T DE69228019 T DE 69228019T DE 69228019 T DE69228019 T DE 69228019T DE 69228019 D1 DE69228019 D1 DE 69228019D1
- Authority
- DE
- Germany
- Prior art keywords
- fines
- aqueous fluid
- fluid absorbent
- absorbent polymer
- polymer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/42—Use of materials characterised by their function or physical properties
- A61L15/60—Liquid-swellable gel-forming materials, e.g. super-absorbents
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F265/00—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US701232 | 1991-05-16 | ||
US07/701,232 US5342899A (en) | 1991-05-16 | 1991-05-16 | Process for recycling aqueous fluid absorbents fines to a polymerizer |
Publications (3)
Publication Number | Publication Date |
---|---|
DE69228019D1 true DE69228019D1 (de) | 1999-02-11 |
DE69228019T2 DE69228019T2 (de) | 1999-08-26 |
DE69228019T3 DE69228019T3 (de) | 2007-10-11 |
Family
ID=24816532
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69228019T Expired - Lifetime DE69228019T3 (de) | 1991-05-16 | 1992-05-14 | Verfahren zum Recycling von wasserabsorbierendem feinkörnigem Gut in eine Polymerisationsvorrichtung |
Country Status (9)
Country | Link |
---|---|
US (1) | US5342899A (de) |
EP (1) | EP0513780B2 (de) |
JP (1) | JP3155006B2 (de) |
KR (1) | KR100231077B1 (de) |
AT (1) | ATE175217T1 (de) |
CA (1) | CA2068859A1 (de) |
DE (1) | DE69228019T3 (de) |
MX (1) | MX9202309A (de) |
WO (1) | WO1992020723A1 (de) |
Families Citing this family (77)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4412153C2 (de) * | 1994-04-11 | 1999-08-19 | Stockhausen Chem Fab Gmbh | Absorptionsmittel für Säuren und Laugen |
GB9413605D0 (en) * | 1994-07-06 | 1994-08-24 | American Colloid Co | Method of increasing the size and absorption under load of super-absorbent fine particles by impregnation with an aqueous acrylic monomer solution |
DE19601764A1 (de) | 1996-01-19 | 1997-07-24 | Hoechst Ag | Verfahren zur Herstellung hydrophiler, hochquellfähiger Hydrogele |
US6228930B1 (en) | 1997-06-18 | 2001-05-08 | Nippon Shokubai Co., Ltd. | Water-absorbent resin granule-containing composition and production process for water-absorbent resin granule |
JPH11279287A (ja) | 1998-03-31 | 1999-10-12 | Nippon Shokubai Co Ltd | 吸水剤組成物および吸水剤の製造方法 |
DE60112630T3 (de) | 2000-02-29 | 2016-03-03 | Nippon Shokubai Co., Ltd. | Verfaren zur Herstellung eines wasserabsorbierenden Harzpulvers |
WO2002053605A2 (en) * | 2000-12-29 | 2002-07-11 | Dow Global Technologies Inc. | Water absorbent resin particles of crosslinked carboxyl-containing polymers with low monomer content |
WO2003002618A1 (en) * | 2001-06-29 | 2003-01-09 | Dow Global Technologies Inc. | Water-absorbent carboxyl-containing polymers with low monomer content |
CN1514739A (zh) * | 2001-06-29 | 2004-07-21 | 具有气味控制性能的高吸水性含羧基聚合物和制备方法 | |
KR100875614B1 (ko) * | 2001-06-29 | 2008-12-26 | 에보닉 스톡하우젠 게엠베하 | 악취 방지 특성을 갖는 초흡수성 카복실 함유 중합체의제조 방법 |
EP1427762B1 (de) * | 2001-09-12 | 2012-02-08 | Evonik Stockhausen GmbH | Kontinuierliches polymerisationsverfahren zur herstellung stark absorbierender polymere |
US20030197305A1 (en) * | 2002-04-23 | 2003-10-23 | Mike Collins | Method of using clays to form absorbent materials |
EP1519966A1 (de) * | 2002-06-26 | 2005-04-06 | Dow Global Technologies Inc. | Verfahren zur herstellung von eisenionen enthaltenden wasserabsorbierenden polymeren mit niedrigem restmonomergehalt |
DE10334271B4 (de) | 2003-07-25 | 2006-02-23 | Stockhausen Gmbh | Verfahren zur Agglomeration von Superabsorberfeinteilchen, daraus erhältliche Superabsorberpartikel, deren Verwendung sowie diese beinhaltende Verbunde |
TWI406883B (zh) * | 2005-02-15 | 2013-09-01 | Nippon Catalytic Chem Ind | 吸水劑、吸水物以及產製吸水劑之方法 |
TWI394789B (zh) | 2005-12-22 | 2013-05-01 | Nippon Catalytic Chem Ind | 吸水性樹脂組成物及其製造方法、吸收性物品 |
DE102005062929A1 (de) | 2005-12-29 | 2007-07-05 | Basf Ag | Herstellung eines wasserabsorbierenden Harzes unter Einmischen eines wasserabsorbierenden Harzpulvers |
EP1837348B9 (de) † | 2006-03-24 | 2020-01-08 | Nippon Shokubai Co.,Ltd. | Wasserabsorbierendes Harz und Verfahren zu seiner Herstellung |
US8048624B1 (en) | 2007-12-04 | 2011-11-01 | Opx Biotechnologies, Inc. | Compositions and methods for 3-hydroxypropionate bio-production from biomass |
US9457048B2 (en) | 2008-02-05 | 2016-10-04 | Wellosophy Corporation | Absorbent ingestible agents and associated methods of manufacture and use |
WO2009113673A1 (ja) | 2008-03-13 | 2009-09-17 | 株式会社日本触媒 | 吸水性樹脂を主成分とする粒子状吸水剤の製造方法 |
EP2261148B1 (de) | 2008-03-28 | 2013-02-13 | Nippon Shokubai Co., Ltd. | Transportverfahren für wasserabsorbierende harzpulverförmige substanz |
WO2010032694A1 (ja) | 2008-09-16 | 2010-03-25 | 株式会社日本触媒 | 吸水性樹脂の製造方法および通液性向上方法 |
TWI454488B (zh) * | 2008-10-07 | 2014-10-01 | Evonik Degussa Gmbh | 用於製造超吸性聚合物的方法 |
TWI500663B (zh) * | 2008-10-07 | 2015-09-21 | Evonik Degussa Gmbh | 用於製造超吸性聚合物的連續方法 |
TWI500636B (zh) * | 2008-10-07 | 2015-09-21 | Evonik Degussa Gmbh | 用於製造超吸性聚合物的方法 |
US8357766B2 (en) | 2008-10-08 | 2013-01-22 | Evonik Stockhausen Gmbh | Continuous process for the production of a superabsorbent polymer |
US8063121B2 (en) * | 2008-10-08 | 2011-11-22 | Evonik Stockhausen Gmbh | Process for the production of a superabsorbent polymer |
US8048942B2 (en) * | 2008-10-08 | 2011-11-01 | Evonik Stockhausen Gmbh | Process for the production of a superabsorbent polymer |
US7910688B2 (en) * | 2008-10-22 | 2011-03-22 | Evonik Stockhausen Inc. | Recycling superabsorbent polymer fines |
WO2010114058A1 (ja) | 2009-03-31 | 2010-10-07 | 株式会社日本触媒 | 粒子状吸水性樹脂の製造方法 |
KR20110006771A (ko) | 2009-07-15 | 2011-01-21 | 주식회사 엘지화학 | 고흡수성 수지의 제조 방법 |
WO2011034146A1 (ja) | 2009-09-16 | 2011-03-24 | 株式会社日本触媒 | 吸水性樹脂粉末の製造方法 |
GB2473755B (en) | 2009-09-27 | 2011-09-07 | Opx Biotechnologies Inc | Method for producing 3-hydroxypropionic acid and other products |
US8809027B1 (en) | 2009-09-27 | 2014-08-19 | Opx Biotechnologies, Inc. | Genetically modified organisms for increased microbial production of 3-hydroxypropionic acid involving an oxaloacetate alpha-decarboxylase |
EP2484439B1 (de) | 2009-09-29 | 2022-12-14 | Nippon Shokubai Co., Ltd. | Partikelförmiges wasserabsorptionsmittel und verfahren zu seiner herstellung |
EP2484702B2 (de) | 2009-09-30 | 2021-11-10 | Nippon Shokubai Co., Ltd. | Wasserabsorbierendes harz auf basis von polyacrylsäuresalz und verfahren zu seiner herstellung |
EP2485774B1 (de) | 2009-10-09 | 2015-09-09 | Basf Se | Verfahren zur kontinuierlichen herstellung wasserabsorbierender polymerpartikel |
US20110125118A1 (en) * | 2009-11-20 | 2011-05-26 | Opx Biotechnologies, Inc. | Production of an Organic Acid and/or Related Chemicals |
EP2504037A1 (de) * | 2009-11-23 | 2012-10-03 | Basf Se | Verfahren zur herstellung wasserabsorbierender, aufgeschäumter polymerpartikel |
WO2011078298A1 (ja) | 2009-12-24 | 2011-06-30 | 株式会社日本触媒 | ポリアクリル酸系吸水性樹脂粉末及びその製造方法 |
DE102010008163A1 (de) | 2010-02-16 | 2011-08-18 | Evonik Stockhausen GmbH, 47805 | Verfahren zur Rückführung von Polymerfeinteilchen |
WO2011111857A1 (ja) * | 2010-03-12 | 2011-09-15 | 株式会社日本触媒 | 吸水性樹脂の製造方法 |
EP2371869A1 (de) | 2010-03-30 | 2011-10-05 | Evonik Stockhausen GmbH | Verfahren zur Herstellung eines hochabsorbierenden Polymers |
WO2011136301A1 (ja) | 2010-04-27 | 2011-11-03 | 株式会社日本触媒 | ポリアクリル酸(塩)系吸水性樹脂粉末の製造方法 |
WO2012102407A1 (ja) | 2011-01-28 | 2012-08-02 | 株式会社日本触媒 | ポリアクリル酸(塩)系吸水性樹脂粉末の製造方法 |
EP2689020B1 (de) | 2011-03-22 | 2018-05-16 | OPX Biotechnologies Inc. | Mikrobielle herstellung chemischer produkte und zusammensetzungen daraus sowie verfahren und systeme dafür |
WO2012144595A1 (ja) | 2011-04-20 | 2012-10-26 | 株式会社日本触媒 | ポリアクリル酸(塩)系吸水性樹脂の製造方法および製造装置 |
EP2620465B2 (de) | 2012-01-27 | 2018-03-28 | Evonik Degussa GmbH | Wärmebehandlung von wasserabsorbierenden Polymerpartikeln in einem Wirbelbett bei hoher Aufheizrate |
WO2014021432A1 (ja) | 2012-08-01 | 2014-02-06 | 株式会社日本触媒 | ポリアクリル酸(塩)系吸水性樹脂の製造方法 |
KR20150040359A (ko) | 2012-08-10 | 2015-04-14 | 오피엑스 바이오테크놀로지스, 인크. | 지방산 및 지방산 유도된 산물의 생산을 위한 미생물 및 방법 |
US9518180B2 (en) | 2012-09-11 | 2016-12-13 | Nippon Shokubai Co., Ltd. | Method for producing polyacrylic acid (salt)-based water absorbing agent, and water absorbing agent |
WO2014041968A1 (ja) | 2012-09-11 | 2014-03-20 | 株式会社日本触媒 | ポリアクリル酸(塩)系吸水剤の製造方法及びその吸水剤 |
CN104703690B (zh) | 2012-10-01 | 2018-04-27 | 株式会社日本触媒 | 包含多元金属化合物的降尘剂、包含多元金属化合物的吸水剂及其制造方法 |
WO2014054731A1 (ja) | 2012-10-03 | 2014-04-10 | 株式会社日本触媒 | 吸水剤及びその製造方法 |
EP2945994B1 (de) | 2013-01-18 | 2018-07-11 | Basf Se | Beschichtungszusammensetzungen auf basis von acryldispersionen |
JP5952431B2 (ja) | 2013-01-29 | 2016-07-13 | 株式会社日本触媒 | 吸水性樹脂材料及びその製造方法 |
CN105189758A (zh) | 2013-03-15 | 2015-12-23 | 嘉吉公司 | 生长-诱导-生产阶段的控制 |
US20150057465A1 (en) | 2013-03-15 | 2015-02-26 | Opx Biotechnologies, Inc. | Control of growth-induction-production phases |
EP2976141A4 (de) | 2013-03-15 | 2016-10-05 | Cargill Inc | Blitzverdampfung für produktionsreinigung und rückgewinnung |
CN106795483A (zh) | 2013-07-19 | 2017-05-31 | 嘉吉公司 | 用于生产脂肪酸和脂肪酸衍生产物的微生物及方法 |
US11408013B2 (en) | 2013-07-19 | 2022-08-09 | Cargill, Incorporated | Microorganisms and methods for the production of fatty acids and fatty acid derived products |
KR101718942B1 (ko) * | 2013-09-17 | 2017-03-22 | 주식회사 엘지화학 | 고흡수성 수지의 제조 방법 |
WO2015093594A1 (ja) | 2013-12-20 | 2015-06-25 | 株式会社日本触媒 | ポリアクリル酸(塩)系吸水剤及びその製造方法 |
WO2015102463A1 (ko) * | 2014-01-06 | 2015-07-09 | 한화케미칼 주식회사 | 고흡수성 수지 제조 방법 |
JP2017501295A (ja) * | 2014-01-06 | 2017-01-12 | ハンファ ケミカル コーポレーションHanwha Chemical Corporation | 高吸水性樹脂の製造方法 |
CN106103495B (zh) | 2014-03-03 | 2017-12-29 | 株式会社日本触媒 | 聚丙烯酸(盐)系吸水性树脂的制造方法 |
US9446271B1 (en) * | 2014-07-14 | 2016-09-20 | Nicholas A. Perez | Fire and smoke prevention compositions and the processes of making them |
EP2993228B1 (de) | 2014-09-02 | 2019-10-09 | Cargill, Incorporated | Herstellung von fettsäureestern |
EP3280460B1 (de) * | 2015-04-07 | 2023-11-29 | Basf Se | Verfahren zur herstellung von superabsorberpartikeln |
CN105131314B (zh) * | 2015-09-23 | 2018-04-03 | 浙江卫星石化股份有限公司 | 一种吸水树脂的制备方法 |
CN105295926B (zh) * | 2015-10-30 | 2019-10-29 | 四川省农业科学院生物技术核技术研究所 | 一种抗结块的农用吸水树脂复合剂 |
DE102016100515A1 (de) | 2016-01-13 | 2017-07-13 | Basf Se | Verfahren zur Herstellung eines geschäumten Polymers (gP) |
KR102069830B1 (ko) | 2016-02-03 | 2020-01-23 | 주식회사 엘지화학 | 초흡수성 응집체를 제조하는 방법 |
JP2020506702A (ja) | 2017-02-02 | 2020-03-05 | カーギル インコーポレイテッド | C6−c10脂肪酸誘導体を生成する遺伝子組み換え細胞 |
KR102566942B1 (ko) * | 2017-10-27 | 2023-08-14 | 주식회사 엘지화학 | 고흡수성 수지의 제조 방법 |
JP7231522B2 (ja) | 2019-09-06 | 2023-03-01 | ユニ・チャーム株式会社 | 再生高吸水性ポリマーを製造する方法、再生高吸水性ポリマーを用いて高吸水性ポリマーを製造する方法、及び、再生高吸水性ポリマー |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4192727A (en) † | 1976-08-24 | 1980-03-11 | Union Carbide Corporation | Polyelectrolyte hydrogels and methods of their preparation |
DE3429379A1 (de) * | 1983-08-10 | 1985-02-28 | Kao Corp., Tokio/Tokyo | Verfahren zur herstellung eines hochreaktiven wasserabsorbierenden harzes |
US4654039A (en) † | 1985-06-18 | 1987-03-31 | The Proctor & Gamble Company | Hydrogel-forming polymer compositions for use in absorbent structures |
US4950692A (en) * | 1988-12-19 | 1990-08-21 | Nalco Chemical Company | Method for reconstituting superabsorbent polymer fines |
AU5086290A (en) * | 1989-01-24 | 1990-08-24 | Dow Chemical Company, The | Aggregates or clusters of water-swellable polymers having increased hydration rate over unassociated water-swellable polymers |
US4914066A (en) * | 1989-02-24 | 1990-04-03 | Hoechst Celanese Corporation | Pellets of clay and superabsorbent polymer |
US4985467A (en) * | 1989-04-12 | 1991-01-15 | Scotfoam Corporation | Highly absorbent polyurethane foam |
JPH0776244B2 (ja) † | 1989-07-19 | 1995-08-16 | 荒川化学工業株式会社 | 水可溶分の少ない吸水性樹脂の製造法 |
US5064582A (en) * | 1989-09-15 | 1991-11-12 | The Dow Chemical Company | Process and apparatus for recycling aqueous fluid absorbents fines |
PT95647A (pt) * | 1989-10-25 | 1991-09-13 | Hoechst Celanese Corp | Processo para a producao de fibras de polimeros |
US5011864A (en) * | 1989-11-09 | 1991-04-30 | Hoechst Celanese Corp. | Water absorbent latex polymer foams containing chitosan (chitin) |
US4990541A (en) * | 1989-11-09 | 1991-02-05 | Hoechst Celanese Corp. | Water absorbent latex polymer foams |
EP0437816B1 (de) * | 1990-01-16 | 1995-07-26 | Hoechst Celanese Corporation | Superabsorbierende, nassgelegte, nichtgewebte Faserbahn |
US4970267A (en) * | 1990-03-08 | 1990-11-13 | Nalco Chemical Company | Reconstitution of superabsorbent polymer fines using persulfate salts |
EP0454497B1 (de) * | 1990-04-27 | 1997-02-26 | Nippon Shokubai Co., Ltd. | Verfahren zur Herstellung von salzbeständigem Harz |
US5350799A (en) * | 1990-05-31 | 1994-09-27 | Hoechst Celanese Corporation | Process for the conversion of fine superabsorbent polymer particles into larger particles |
DE4021847C2 (de) * | 1990-07-09 | 1994-09-08 | Stockhausen Chem Fab Gmbh | Verfahren zur Herstellung wasserquellbarer Produkte unter Verwendung von Feinstanteilen wasserquellbarer Polymerer |
-
1991
- 1991-05-16 US US07/701,232 patent/US5342899A/en not_active Expired - Lifetime
-
1992
- 1992-05-04 JP JP51149792A patent/JP3155006B2/ja not_active Ceased
- 1992-05-04 WO PCT/US1992/003715 patent/WO1992020723A1/en active Application Filing
- 1992-05-04 KR KR1019930703466A patent/KR100231077B1/ko not_active IP Right Cessation
- 1992-05-14 EP EP92108141A patent/EP0513780B2/de not_active Expired - Lifetime
- 1992-05-14 AT AT92108141T patent/ATE175217T1/de not_active IP Right Cessation
- 1992-05-14 DE DE69228019T patent/DE69228019T3/de not_active Expired - Lifetime
- 1992-05-15 CA CA002068859A patent/CA2068859A1/en not_active Abandoned
- 1992-05-15 MX MX9202309A patent/MX9202309A/es unknown
Also Published As
Publication number | Publication date |
---|---|
JPH06510551A (ja) | 1994-11-24 |
ATE175217T1 (de) | 1999-01-15 |
EP0513780A1 (de) | 1992-11-19 |
KR100231077B1 (ko) | 1999-11-15 |
EP0513780B2 (de) | 2007-03-14 |
EP0513780B1 (de) | 1998-12-30 |
CA2068859A1 (en) | 1992-11-17 |
DE69228019T2 (de) | 1999-08-26 |
WO1992020723A1 (en) | 1992-11-26 |
MX9202309A (es) | 1992-11-01 |
JP3155006B2 (ja) | 2001-04-09 |
US5342899A (en) | 1994-08-30 |
DE69228019T3 (de) | 2007-10-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69228019T2 (de) | Verfahren zum Recycling von wasserabsorbierendem feinkörnigem Gut in eine Polymerisationsvorrichtung | |
DE3763491D1 (de) | Verfahren zur herstellung von feinteiligen pulverfoermigen vernetzten copolymerisaten und deren verwendung. | |
EP0173789A3 (de) | Verfahren zur Herstellung einer Emulsion von einem Vinylharz mit Mikrohohlräumen und Verfahren zu dessen Pulverisierung | |
JPS5765735A (en) | Heat-resistant expandable synthetic resin particle and molded article thereof | |
KR830005266A (ko) | 에멀젼 중합 라텍스로부터의 비닐중합체 회수공정 | |
ES2081686T3 (es) | Un metodo para preparar un material compuesto de polimero de vinilo y poliolefina. | |
DE59505833D1 (de) | Recyclat enthaltende, expandierbare Styrolpolymerisate | |
BR7904254A (pt) | Processo para a producao de polimeros de n-vinilamida,e polimero assim obtido | |
Napper et al. | Polymerization in emulsions | |
DE69209437T2 (de) | Verfahren zur Rückgewinnung von inerten kleinteiligen Materialien | |
JPH0655070A (ja) | 吸水剤、吸水剤の製造方法および吸水剤を用いた水分を含有する粉粒体の水分低減方法 | |
GB9225461D0 (en) | Depolymerisation process and apparatus | |
JPS5798513A (en) | Production of hydrogel | |
KR870004919A (ko) | 저수축성을 갖는 중합체 콘크리트의 제조방법 | |
Brooks | Development in Emulsion Polymerization | |
Postelnicescu et al. | Contributions to Mathematical Modelling of Reactors for High Pressure Ethylene Polymerization | |
ATE19523T1 (de) | Suspensionsverfahren fuer die polymerisation von vinylchlorid-monomer. | |
JPS5329386A (en) | Preparation of heat-stable vinyl chloride polymer | |
JPS5580412A (en) | Preparation of vinyl chloride polymer composition | |
JPS52145489A (en) | Suspension polymerization for granular cross-linking polymer having uniform particle size | |
JPS5295791A (en) | Production of vinyl chloride resin free from vinyl chloride monomer | |
Kurenkov et al. | Polymerisation of Acrylamide in Aqueous-Heptane Emulsions | |
JPS6429407A (en) | Manufacture of acrylamide polymer | |
Tirrell et al. | Diffusion-Controlled Reactions in Polymers: the Influence of Polymer Concentration and Molecular Weight in the Reaction Environment.(Retroactive Coverage) | |
Trachenko et al. | Effect of Impurities in Methyl Methacrylate on the Bulk Polymerisaton |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8363 | Opposition against the patent | ||
8328 | Change in the person/name/address of the agent |
Representative=s name: HERZOG, M., DIPL.-CHEM./UNIV. OF MASS. DR.RER.NAT. |
|
8366 | Restricted maintained after opposition proceedings | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: STOCKHAUSEN, ROLF, DR., 40210 DUESSELDORF, DE |
|
R071 | Expiry of right |
Ref document number: 513780 Country of ref document: EP |
|
R081 | Change of applicant/patentee |
Ref document number: 513780 Country of ref document: EP Owner name: EVONIK DEGUSSA GMBH, DE Free format text: FORMER OWNER: STOCKHAUSEN GMBH, 47805 KREFELD, DE Effective date: 20120907 |