Patents
Patents for C08F 36 - Homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds (4,939)
09/1981
09/01/1981CA1108337A1 Pneumatic tire with medium vinyl polybutadiene/polyisoprene blend tread
08/1981
08/26/1981EP0034235A1 Process for producing polybutadiene rubber with enhanced mechanical strength
08/25/1981US4285833 A coordination catalyst comprising a cobalt compound, an organoaluminum compound, water, and a trisalkylphenyl phosphite; butyl rubber
08/18/1981US4284741 Polymers of conjugated dienes which have terminal conjugated unsaturated alicyclic functional groups
08/18/1981US4284483 Hydroxyl-terminated liquid polymers and process for preparation thereof using a mixture of at least one hydroxyl-containing disulfide and at least one hydroxyl-containing trisulfide
08/11/1981US4283510 Stabilization
08/05/1981EP0032978A1 Polychloroprene adhesive having an improved pot life and preparation thereof
08/05/1981EP0032977A1 Continuous polymerization of chloroprene
08/04/1981CA1106543A1 Method for polymerizing mono- and diolefine compounds
07/1981
07/28/1981US4280927 A chelate of hydrocarbyl lithium and a dialkylaminoaldehyde dialkyl acetal
07/22/1981EP0032167A1 Process for the manufacture of reaction products of conjugated diolefins with aromatic hydrocarbons
07/14/1981CA1105198A1 Process for the preparation of cyclized polydienes
07/08/1981EP0031593A1 Radiation-polymerizable composition and radiation-sensible copying material produced therewith
06/1981
06/23/1981CA1103691A1 Organo-magnesium complexes and process for their preparation
06/02/1981US4271282 Process for producing carbo-chain homo-polymers, block- and random copolymers of conjugated dienes with vinyl-aromatic monomers
06/02/1981US4271060 Solution polymerization process
05/1981
05/26/1981US4269969 Polybutadienediol purification
05/26/1981CA1101869A1 Hydroxyl-containing liquid polymers and process for preparation thereof using a mixture of at least one hydroxyl-containing disulfide & at least one hydroxyl- containing trisulfied
05/20/1981EP0028816A1 Polybutadienediol production
05/20/1981EP0028732A1 Process for producing polychloroprene latices containing a large amount of solids
05/19/1981CA1101577A1 Process for the preparation of stabilized polychloroprene latex
05/05/1981CA1100672A1 Green strength of elastomers
04/1981
04/29/1981EP0027577A1 Organomagnesium alkoxides, process for their preparation and stable solutions of these compounds
04/28/1981US4264753 Process for polymerizing conjugated dienes
04/28/1981US4264472 Catalyst for preparing polyethylene
04/28/1981CA1100247A1 Aqueous free radical emulsion polymerization
04/22/1981EP0027259A1 Silver halide photographic emulsions including dye sensitizers and supersensitizing or stabilizing amounts of a polymeric compound, and photographic elements, particularly radiographic elements, including said emulsions
04/15/1981EP0027053A1 Disproportionation of unsaturated acids
04/08/1981EP0026665A1 Quick-setting adhesive composition
04/07/1981US4260712 Preparation of barium-alkoxide salts
04/07/1981US4260707 Solution polymerization of conjugated dienes
04/07/1981US4260519 Preparation of barium-alkoxide salts
04/07/1981CA1098913A1 Multifunctional lithium containing initiator
04/01/1981EP0025942A2 Solutions of bifunctional organolithium compounds in non polar organic hydrocarbons as solvents, process for the preparation of such solutions and their use
03/1981
03/31/1981US4259459 Reaction of diproportionated tall oil acids and resin acids with formaldehyde
03/31/1981CA1098648A1 Method for the preparation of copolymers which contain conjugated diene unsaturations and copolymers obtained thereof
03/24/1981US4258162 Polymers of conjugated dienes which have terminal conjugated unsaturated alicyclic functional groups
03/24/1981US4258160 By use of a catalyst comprising a cobalt-containing component, an alkyl aluminum component, and carbonyl sulfide
03/24/1981CA1098248A1 Block copolymer dispersion stabilizer and aqueous dispersion polymerization therewith
03/17/1981US4256871 Synthetic polymer emulsifier from condensation of naphthalene sulfonic acid, alkyl benzene sulfonic acid and formaldehyde
03/17/1981US4256840 Macroreticular cation exchange beads and preparation of same
03/11/1981EP0024485A1 Process for the production of ethylene copolymers with at least one other 1-monoolefin and optionally a non conjugated diene
03/10/1981US4255543 Process for the preparation of 1,2-polybutadiene
03/10/1981US4255539 Method of preparing sulfur-modified polychloroprene
03/03/1981US4254247 Novel initiators for anionic polymerization
02/1981
02/10/1981US4250270 Alkyl chloride impurity resulting from crosslinking a copolymer based on a resulting conjugated diene
02/10/1981US4250083 Viscosity stabilized chloroprene-sulfur copolymers
02/10/1981CA1095646A1 Control of molecular weight and molecular weight distributions of unsaturated polymers
02/03/1981US4248988 Catalyst system comprising cobalt or nickel component, hydrocarbyl aluminum, and halogenated hydrocarbon
02/03/1981CA1095197A1 Non-aqueous dispersion polymerization of conjugated diolefins
01/1981
01/27/1981US4247418 Polymerization catalyst and process for polymerizing dienes therewith
01/27/1981CA1094743A1 Continuous solution polymerization of a conjugated diene with a monovinylaromatic compound using alkoxysilicon treating agents in the first reactor means of a reactor series
01/20/1981CA1094248A1 Solvent system for butadiene-1,3 polymerization
01/13/1981US4244852 Thermoplastic resins with good solvent resistance
01/13/1981CA1093745A1 Polymerization process
01/07/1981EP0021212A1 Process for preparing stably storable copolymers of 2-chloro-1,3-butadiene and sulfur
01/07/1981EP0020924A1 Process for isomerising isolated double bonds to conjugated double bonds in homo- and/or copolymers of 1,3-dienes
01/07/1981EP0020906A1 Synthetic polymer emulsifier, process for preparing the same and its use in manufacturing a synthetic latex
01/06/1981US4243787 Bulk anionic polymerization process using an alkali metal amide and the salt of the same alkali metal with a hydroxylic compound
12/1980
12/30/1980US4242232 Catalyst and its preparation and use for the solution polymerization of conjugated dienes
12/30/1980CA1092608A1 Method for recovering low molecular weight polymers
12/16/1980US4239870 Process for countering effects of fast poisons in continuous olefin polymerization
12/09/1980US4238397 Hydroxyl-terminated liquid polymers and process for preparation thereof using a mixture of at least one hydroxyl-containing disulfide and at least one hydroxyl-containing trisulfide
11/1980
11/26/1980EP0019100A1 Continuous solution polymerization process
11/25/1980US4236035 Used for making polymerization catalyst
11/18/1980US4234704 Chloroprene polymer composition
11/04/1980US4231896 Organomagnesium complexes
10/1980
10/28/1980CA1088503A1 Uranium-containing mixed catalysts and their use for the polymerisation of olefins
10/28/1980CA1088501A1 Process for the polymerisation of chloroprene
10/14/1980CA1087639A1 Method for producing low molecular weight polymer
10/01/1980EP0016392A1 Catalyst, its preparation and process for polymerizing butadiene
09/1980
09/23/1980US4224429 Process for the anionic polymerization in the presence of cryptants
09/23/1980US4224426 Polymerization process for cis-1,4-polybutadiene using cycloalkane solvents and an aromatic polymerization regulator
09/23/1980US4224415 Polymerization processes and products therefrom
09/23/1980US4224186 High efficiency catalyst for polymerizing olefins
09/17/1980EP0015477A1 Process for preparing a cationic polychloroprene latex and its mixture with a bituminous emulsion
09/17/1980EP0015466A1 Process for preparing telechelic diene polymers
09/16/1980US4223116 Charging 1,3-butadiene prior to 1,3-cyclohexadiene
09/03/1980EP0014886A1 Catalyst, its preparation and its use in the preparation of telomer polymers or copolymers of butadiene
09/02/1980CA1085092A1 Suppressing gel in the continuous solution polymerization of a conjugated diene with a monovinyl aromatic compound
08/1980
08/05/1980US4216121 Titanium iodides-alkyl aluminum-alkoxy, cycloalkoxy or phenoxy titanium trichloride reaction product
08/05/1980CA1083297A1 Heterogeneous anionic polymerization process
06/1980
06/17/1980US4208498 Continuous solution polymerization process
06/11/1980EP0011729A1 A process for preparing rubber-modified high nitrile copolymers with improved impact resistance
06/10/1980US4207238 Hydroxyl-terminated liquid polymers and process for preparation thereof using a mixture of at least one hydroxyl-containing disulfide and at least one hydroxyl-containing trisulfide
05/1980
05/28/1980EP0011184A1 Catalyst, its manufacture and its use in the solution-polymerisation of conjugated dienes
05/27/1980US4205150 Thermo-reversible elastomer composition comprising a liquid chloroprene polymer and a polyvalent metal oxide or hydroxide
05/27/1980US4205016 For polymerization of dienes to a 1,4-configuration
05/14/1980EP0011029A1 Sulfur-modified polychloroprene and its preparation in presence of organic polysulfides
05/13/1980US4202954 Continuous solution polymerization process
05/13/1980CA1077464A1 Polymerization of olefins
05/06/1980US4201729 Multifunctional lithium containing initiator
04/1980
04/30/1980EP0010265A2 Synthetic resins based on crosslinked copolymers of mono- and polyvinyl compounds, process for their preparation and their use as inert material in ion exchange mixed-bed filters
04/29/1980US4200718 Reacting hydrocarbyllithium with compound containing two diphenylethylene groups
04/22/1980US4199448 Reverse osmosis membrane of high urea rejection properties
04/15/1980US4198496 Process for polymerizing butadiene
04/01/1980US4196153 Polyfunctional lithium containing initiator
03/1980
03/11/1980US4192366 Pneumatic tire with medium vinyl polybutadiene/polyisoprene blend tread
02/1980
02/19/1980US4189555 Continuous solution polymerization process
02/06/1980EP0007817A1 Anionic polymerization initiators based on alkali metal amides and anionic polymerization process using these initiators
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