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Class Information
Number: 526/281
Name: Synthetic resins or natural rubbers -- part of the class 520 series > Synthetic resins (class 520, subclass 1) > Polymers from only ethylenic monomers or processes of polymerizing, polymerizable compositions containing only ethylenic monomers as reactants or processes of preparing > From fused or bridged ring containing monomer > Bridged monomer
Description: Subject matter wherein the unsaturated monomer contains at least one bridged ring system.










Sub-classes under this class:

Class Number Class Name Patents
526/283 Compound containing dicyclopentadiene moiety 416
526/282 Contains an exterior ethylenic substituent bonded to a single carbon atom of the bridged ring system 467


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

Patent Number Title Of Patent Date Issued
5620760 Shaped articles for biomedical use Apr. 15, 1997
5621054 Copolymerization process for the preparation of crystalline copolymers of olefins and cyclic olefins Apr. 15, 1997
5610253 Cycloolefin polymers Mar. 11, 1997
5610254 Ethylene-.alpha.-olefin-nonconjugated polyene random copolymer, rubber composition, and process for preparing the random copolymer Mar. 11, 1997
5604292 Polymers with electrical and non-linear optical properties Feb. 18, 1997
5602219 Process for preparing cycloolefin copolymers Feb. 11, 1997
5599882 Ring-opening polymer and a process for production thereof Feb. 4, 1997
5589548 Process for preparing difunctional telechelic linear non-crosslinked polyolefins Dec. 31, 1996
5583192 Flexible cycloolefin copolymer film and method of preparing same Dec. 10, 1996
5580934 Ring-opening hydrogenated copolymer and process for producing the same Dec. 3, 1996
5574118 Olefin polymers containing bound antioxidant Nov. 12, 1996
5571881 Addition polymers derived from norbornene-functional monomers and process therefor Nov. 5, 1996
5569730 Addition polymers derived from norbornene-functional monomers and process therefor Oct. 29, 1996
5561208 Medical implement, polymer composition, and optical material Oct. 1, 1996
5561207 Anionically copolymerized living random (meth)acrylic copolymers and copolymers prepared therefrom Oct. 1, 1996
5559190 Difunctional telechelic linear non-crosslinked polyolefins Sep. 24, 1996
5559199 Process for production of ethylene-cyclic olefin copolymer Sep. 24, 1996
5552504 Semi-crystalline cycloolefin copolymer film Sep. 3, 1996
5552489 Tackifiers and a process to obtain tackifiers Sep. 3, 1996
5545829 Process for preparing cycloolefin copolymers Aug. 13, 1996
5545828 Low yellow index polymer compositions, polymerizable compositions and lenses using said compositions Aug. 13, 1996
5534606 Rigid cycloolefin copolymer film Jul. 9, 1996
5525688 Highly active .pi.-allynickel-based polymerization initiators Jun. 11, 1996
5506326 Air-activatable polymerizable compositions containing onium salts Apr. 9, 1996
5498677 Process for preparation and purification of material of a cycloolefin copolymer Mar. 12, 1996
5491206 Polymerizable compositions containing olefin metathesis catalysts and cocatalysts, and methods of use therefor Feb. 13, 1996
5468803 Medical implement, polymer composition, and optical material Nov. 21, 1995
5468819 Process for making polymers containing a norbornene repeating unit by addition polymerization using an organo (nickel or palladium) complex Nov. 21, 1995
5455318 Method of production of polymers and copolymers of cycloalkene of norbornene type Oct. 3, 1995
5453473 Reduced fouling in process for production of EP Sep. 26, 1995
5439992 Continuous process for making melt-processable optical grade ring-opened polycyclic (co)polymers in a single-stage multi-zoned reactor Aug. 8, 1995
5438093 Modified polycycloolefins Aug. 1, 1995
5422409 Cycloolefin (co)polymers with a narrow molecular weight distribution and a process for the preparation thereof Jun. 6, 1995
5391658 Method for preparing cycloolefin copolymers with improved heat stability Feb. 21, 1995
5391650 Bisbenzocyclobutene thermosetting compounds and process for preparing the same Feb. 21, 1995
5391670 Alkylation resins from polycyclic aromatic compounds Feb. 21, 1995
5380809 Composition for optical material Jan. 10, 1995
5376725 Alloys of cycloolefin polymers and polyaryl ether ketones Dec. 27, 1994
5371158 Bulk polymerization using specific metallocene catalysts for the preparation of cycloolefin polymers Dec. 6, 1994
5366812 Thermoplastic materials and article made therefrom Nov. 22, 1994
5362811 Process for preparing cycloolefin random copolymer pellets Nov. 8, 1994
5342909 Ruthenium and osmium metal carbene complexes for olefin metathesis polymerization Aug. 30, 1994
5342907 Ethylene/propylene copolymer rubbers Aug. 30, 1994
5336745 Terminally-substituted polymeric compositions from cationically polymerizable monomers and initiators Aug. 9, 1994
5324801 Process for the preparation of chemically homogeneous cycloolefin copolymers Jun. 28, 1994
5319042 Pure tungsten oxyphenolate complexes as DCPD polymerization catalysts Jun. 7, 1994
5296566 Polymerizable compositions containing olefin metathesis catalysts and cocatalysts, and methods of use therefor Mar. 22, 1994
5286439 Packaging for semiconductors Feb. 15, 1994
5276119 Transition metal hydrides as co-catalysts for olefin polymerization Jan. 4, 1994
5272235 Cycloolefin random copolymer and process for preparing same Dec. 21, 1993

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