Patents
Patents for C08F 234 - Copolymers of cyclic compounds having no unsaturated aliphatic radicals in a side chain and having one or more carbon-to-carbon double bonds in a heterocyclic ring (327)
04/2000
04/19/2000CN1250778A Novel monomer and its polymer used for anti-photoetching agent, and their compositions
03/2000
03/09/2000DE19940515A1 A photoresist monomer useable in photolithography for producing highly integrated semiconductor elements
03/08/2000EP0984053A1 Photochromic polymerizable composition
02/2000
02/10/2000WO2000006615A1 A polymerization process
02/10/2000CA2338847A1 A polymerization process
12/1999
12/01/1999EP0783537B1 Cumarin and quinolinone derivatives for preparing liquid crystal orientation layers
07/1999
07/29/1999WO1999037734A1 Photochromic polymerizable composition
06/1999
06/30/1999EP0926146A1 Chromene compounds
06/16/1999EP0922061A2 Polymerisates of unsaturated saccharide acids and their derivatives, copolymerisates thereof with ethylenically unsaturated compounds and method for preparing the same
04/1999
04/27/1999CA2057318C Stabilized compositions of a chlorinated polymer
03/1999
03/25/1999WO1999000436A3 Polymerisates of unsaturated saccharide acids and their derivatives, copolymerisates thereof with ethylenically unsaturated compounds and method for preparing the same
01/1999
01/07/1999WO1999000436A2 Polymerisates of unsaturated saccharide acids and their derivatives, copolymerisates thereof with ethylenically unsaturated compounds and method for preparing the same
01/07/1999DE19727362A1 Polymerisate aus ungesättigten Saccharidsäuren und deren Derivaten sowie deren Copolymerisate mit ethylenisch ungesättigten Verbindungen und Verfahren zu ihrer Herstellung Polymers of unsaturated Saccharidsäuren and derivatives thereof and copolymers thereof with ethylenically unsaturated compounds and methods for their preparation
12/1998
12/23/1998WO1998057943A1 Chromene compounds
10/1998
10/14/1998EP0541578B1 Polymerisable porphyrins
05/1998
05/20/1998EP0703806B1 Multi-leaf radiation attenuator for radiation therapy with verification system
04/1998
04/01/1998EP0832669A2 Multi-leaf radiation attenuator for radiation therapy with verification system
01/1998
01/20/1998US5710345 Floorinated polymers and copolymers containing cyclic structures
09/1997
09/17/1997CN1159815A Cumarin and quinolinone derivatives for preparing liquid crystal orientation layers
07/1997
07/29/1997CA1339175C Optical fiber having plastic cladding and process for preparation thereof
07/16/1997EP0783537A1 Cumarin and quinolinone derivatives for preparing liquid crystal orientation layers
07/08/1997US5646223 Optical fiber coatings
05/1997
05/14/1997EP0773042A2 Multi-leaf radiation attenuator for radiation therapy with verification system
01/1997
01/02/1997EP0750646A1 Polymers of unsaturated saccharides and their derivatives and their copolymers having ethylenically unsaturated compounds, and process for preparing them
12/1996
12/31/1996US5589557 Fluorinated polymers and copolymers containing cyclic structures
11/1996
11/05/1996US5571932 Perfluorodioxoles, the preparation process thereof, and homopolymers and copolymers obtained therefrom
08/1996
08/07/1996EP0541578A4 Polymerisable porphyrins
04/1996
04/04/1996WO1996010049A1 Cumarin and quinolinone derivatives for preparing liquid crystal orientation layers
04/03/1996EP0703806A1 Multi-leaf radiation attenuator for radiation therapy with verification system
03/1996
03/12/1996US5498682 Perfluorodioxoles, the preparation process thereof, and homopolymers and copolymers obtained therefrom
02/1996
02/27/1996US5495028 Perfluorodioxoles, the preparation process thereof, and homopolymers and copolymers obtained therefrom
11/1995
11/22/1995EP0683181A1 Fluorinated polymers and copolymers containing cyclic structures
11/20/1995CA2149739A1 Fluorinated polymers and copolymers containing cyclic structures
11/16/1995WO1995030699A1 Copolymers of perhalo-2,2-di-loweralkyl-1,3-dioxole, and perfluoro-2-methylene-4-methyl-1,3-dioxolane
09/1995
09/21/1995WO1995025135A1 Polymers of unsaturated saccharides and their derivatives and their copolymers having ethylenically unsaturated compounds, and process for preparing them
09/21/1995CA2185321A1 Polymers of unsaturated saccharides and their derivatives and their copolymers having ethylenically unsaturated compounds, and process for preparing them
09/14/1995DE4408391A1 Polymerisate aus ungesättigten Sacchariden und deren Derivaten sowie deren Copolymerisate mit ethylenisch ungesättigten Verbindungen und Verfahren zu ihrer Herstellung Polymers of unsaturated saccharides and derivatives thereof and copolymers thereof with ethylenically unsaturated compounds and methods for their preparation
06/1995
06/27/1995US5428109 Vinyl aromatic copolymers blended with stickiness-imparting resin of styrene and indene and their derivatives; heat resistant
05/1995
05/04/1995WO1994028974A3 Multi-leaf radiation attenuator for radiation therapy with verification system
04/1995
04/18/1995US5408020 Amorphous fluoropolymers which form tough transparent films or coatings
03/1995
03/29/1995EP0645406A1 Amorphous copolymers of perfluoro-2,2-dimethyl-1,3-dioxole
02/1995
02/28/1995US5394452 Verification system for radiation therapy
01/1995
01/11/1995EP0633257A1 Perfluorodioxoles, the preparation process thereof, and homopolymers and copolymers obtained therefrom
01/06/1995CA2127219A1 Perfluorodioxoles, the preparation process thereof, and homopolymers and copolymers obtained therefrom
12/1994
12/22/1994WO1994028974A2 Multi-leaf radiation attenuator for radiation therapy with verification system
11/1994
11/01/1994US5360880 Reacting pyrrole with unsaturated aldehyde
10/1994
10/04/1994US5353368 Optical fiber comprising a cladding made of amorphous copolymers of two fluorinated ring monomers
09/1994
09/27/1994US5351280 Multi-leaf radiation attenuator for radiation therapy
09/07/1994EP0416017B1 Process for the stabilization of fluoropolymers
08/1994
08/16/1994US5338608 Amorphous copolymers of two fluorinated ring monomers
07/1994
07/05/1994US5326839 Amorphous copolymers of two fluorinated ring monomers
06/1994
06/29/1994EP0604120A1 Hot-melt adhesive composition
06/28/1994US5324889 Amorphous copolymers of two fluorinated ring monomers
06/17/1994CA2111493A1 Hot-melt adhesive composition
02/1994
02/15/1994US5286567 Pellicle for photolithographic mask
01/1994
01/04/1994US5276121 Amorphous copolymers of two fluorinated ring monomers
12/1993
12/14/1993US5270411 Process for making an aliphatic polyester by copolymerizing a cyclic ketene acetal and an olefin and the polyester product thereof
11/1993
11/10/1993EP0568869A2 Amorphous copolymers of two fluorinated ring monomers
10/1993
10/26/1993CA1323627C Copolymers of unsaturated carboxylic acids and use thereof
05/1993
05/19/1993EP0541578A1 Polymerisable porphyrins
03/1993
03/17/1993EP0477224B1 Perfluorodioxole membranes
11/1992
11/17/1992US5164420 Photodegradable polymers of furan derivatives
08/1992
08/25/1992CA1306827C Amorphous copolymers of perfluoro-2,2-dimethyl-1,3-dioxole
06/1992
06/17/1992EP0490780A1 Stabilized compositions of a chlorinated polymer
04/1992
04/07/1992CA1298680C Metathesis polymerization of cycloolefins
04/01/1992EP0477224A1 Perfluorodioxole membranes.
01/1992
01/23/1992WO1992001007A1 Polymerisable porphyrins
11/1991
11/12/1991US5064919 Catalytic RIM of a dicyclopentadiene and a norbornene-type monomer containing an N-substituted cyclic imide group using a molybdenum or tungsten salt and alkylaluminum activator
09/1991
09/24/1991US5051114 Polymers of perfluoro-2,2-dimethyl-1,3-dioxole for membranes
07/1991
07/31/1991EP0416017A4 Process for the stabilization of fluoropolymers
04/1991
04/09/1991US5006382 Amorphous copolymers of perfluoro-2,2-dimethyl-1,3-dioxole
03/1991
03/27/1991EP0418228A1 Amorphous copolymers or perfluoro-2,2-dimethyl-1,3-dioxole
03/19/1991US5000547 Amorphous copolymers of perfluoro-2,2-dimethyl-1,3-dioxole
03/13/1991EP0416017A1 Process for the stabilization of fluoropolymers.
03/12/1991US4999248 Amorphous copolymers of perfluoro-2,2-dimethyl-1,3-dioxole
01/1991
01/15/1991US4985308 Tetrafluoroethylene
01/01/1991US4982056 Amorphous copolymers of perfluoro-2,2-dimethyl-1,3-dioxide
12/1990
12/16/1990WO1990015662A1 Perfluorodioxole membranes
12/11/1990US4977297 Cladding for optical fibers; protective coatings
12/11/1990US4977026 Amorphous copolymers of perfluoro-2,2-dimethyl-1,3-dioxole
12/11/1990US4977025 Amorphous copolymers of perfluoro-2,2-dimethyl-1,3-dioxole
12/11/1990US4977008 Amorphous copolymers of perfluoro-2,2-dimethyl-1,3-dioxole
12/04/1990US4975505 Fluoropolymers; high glass transition temperature
11/1990
11/27/1990US4973142 Amorphous copolymers of perfluoro-2,2-dimethyl-1,3-dioxole
08/1990
08/14/1990US4948851 Amorphous copolymers of perfluoro-2,2-dimethyl-1,3-dioxole
08/07/1990US4946902 Process for the setabilization of fluoropolymers
08/01/1990EP0380120A2 Modified polytetrafluoroethylene fine powder and preparation thereof
06/1990
06/19/1990US4935477 Amorphous copolymers of perfluoro-2,2-dimethyl-1,3-dioxole
04/1990
04/25/1990EP0364681A2 Copolymers of unsaturated carboxylic acids, and their use
04/24/1990US4920156 Photocurable coatings; flexibility, impact strength
03/1990
03/13/1990US4908410 Modified polytetrafluoroethylene fine powder and preparation thereof
02/1990
02/27/1990CA1266345A1 Blends of cyclic vinyl ether containing compounds and urethane acrylates
01/1990
01/03/1990EP0349126A2 Optical fiber having plastic cladding and process for preparation thereof
01/03/1990EP0348975A2 Copolymer of polymerizable components in naphtha oil and maleic anhydride, process for producing said copolymer, and derivatives thereof
12/1989
12/14/1989WO1989012071A1 Amorphous copolymers or perfluoro-2,2-dimethyl-1,3-dioxole
11/1989
11/30/1989WO1989011495A1 Process for the stabilization of fluoropolymers
06/1988
06/28/1988US4754009 Cladding, optical fibers, electronics, films, molding materials
04/1988
04/13/1988EP0263425A1 A process and composition for metathesis polymerization of cycloolefins
09/1986
09/23/1986CA1211890A1 Amorphous copolymers of perfluoro(2,2-dimethyl-1,3- dioxole)
11/1985
11/26/1985CA1197347A1 Perfluorodioxole and its polymers
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