241 |
Photopolymer imaging using epoxy and bromine containing ethylenically
unsaturated compounds |
US33842 |
1979-04-27 |
US4279985A |
1981-07-21 |
Saburo Nonogaki; Yoshio Hatano |
A method for forming radiation images by using a polymeric compound having in the molecule a plurality of epoxy groups and a plurality of bromine atoms. The polymeric compound has a high radiation sensitivity and high contrast. |
242 |
Process for preparing oxidatively-stable polymers by reaction with
antioxidant in the presence of free radical |
US555678 |
1975-03-05 |
US4213892A |
1980-07-22 |
Gerald Scott |
Polymers are rendered more oxidatively stable by reaction with an antioxidant or stabilizer, generally a vinyl-group- or thiol group-containing antioxidant, in the presence of a free radical which may be produced by a redox system or ultra-violet light. The resulting polymers can be used as such or can be used as additives in other polymers to stabilize the latter. |
243 |
Catalytic dehydrohalogenation process for allylically halogenated
unsaturated hydrocarbon polymers |
US966396 |
1978-12-04 |
US4211855A |
1980-07-08 |
Irwin J. Gardner |
A heterogeneous catalytic process for dehydrohalogenating allylically halogenated olefinic hydrocarbon polymers to produce conjugated diene unsaturated polymeric products is disclosed comprising employing certain metal containing catalyst compositions, especially activated alumina supported copper containing catalysts. The process is especially suitable for the preparation of conjugated diene butyl elastomers from halogenated butyl rubber and produces products having relatively high reactivity levels in terms of active diene content. |
244 |
Polymeric adhesion promoters for vulcanizable mixtures of elastomers and
mineral fillers |
US819192 |
1977-07-26 |
US4183844A |
1980-01-15 |
Roland Streck; Dieter Zerpner; Horst Haag; Karl-Heinz Nordsiek |
Polybutadiene oils of 400-6,000 molecular weight, having double bonds which are 10 to 60% vinyl, 1 to 15% transvinylene and 25 to 85% cis-vinylene, and 3-20% by weight, corresponding to 0.4 to 3% by weight of bound silicon, of which are reactive silyl polymer units of the formula ##STR1## wherein X is a hydrolyzable group and Y and Z are the same as X or are H and/or alkyl of 1-8 carbon atoms, cycloalkyl of 5-12 carbon atoms, or optionally substituted phenyl; are useful as adhesion promoters for vulcanizable elastomer compositions comprising a mineral filler. |
245 |
Coupling of alkali metal-terminated polymers |
US678096 |
1976-04-19 |
US4049753A |
1977-09-20 |
George A. Moczygemba |
Alkali metal-terminated polymers of one or more alkadienes and of one or more vinyl-substituted aromatic monomers are effectively coupled by an anhydride of a monocarboxylic acid having 2 to 8 carbon atoms per molecule. |
246 |
Method of producing an ion exchanger by reacting unsaturated vulcanized
or powdered rubbers with iodine isocyanate and then introducing ion
exchange groups by further reaction |
US644681 |
1975-12-29 |
US4039483A |
1977-08-02 |
Toshio Honda; Koichi Iwami; Shoji Tanaka; Yukio Fukuura; Shoson Shibata; Yoshikatsu Suzuki; Itsuo Tanuma |
An ion exchanger is produced by reacting a substance containing carbon-to-carbon unsaturated double bond with a solution of iodine isocyanate in an organic solvent and then reacting the resulting isocyanate group added to said substance with a compound having the following formula(X).sub.n R(Y).sub.m or XYwherein X represents an addition active group to the isocyanate group, Y represents an ion-exchanging group or a chelating group, R represents an organic radical having any valence of from 2 to 6 and a molecular weight of 20 to 1000, and n and m are selected from integers of 1 to 5, respectively, provided that a sum of n and m is equal to the valence of R, to introduce the ion-exchanging group having ion-exchanging properties into said substance. |
247 |
Removal of sulfuric acid compounds |
US164129 |
1971-07-19 |
US3954690A |
1976-05-04 |
Wolfgang Hesse; Kurt Hultzsch; Albert Jung; Johannes Reese |
Sulfuric acid compounds are removed from reaction mixtures by a reaction with unsaturated terpene compounds or with polybutadiene at elevated temperatures whereby products of reduction are formed which are volatilizable at the temperature of reaction and by expelling said products of reduction from the reaction mixture. Thus a product being substantially free from a sulfur content is obtained. |
248 |
Aldehyde functional polymers |
US353839 |
1973-04-23 |
US3941847A |
1976-03-02 |
Toshio Yukuta; Minoru Kojima; Akira Onishi; Shu Kanbara |
Aldehyde functional polymers having a molecular weight of about 500 to 50,000 and containing aldehyde functional groups at both ends and/or on side chains of the molecule are produced by subjecting some of the double bonds in a high polymer containing olefinically unsaturated double bonds to ozone-decomposition by ozone-containing gas and reducing the ozone-decomposition products by means of a trivalent phosphorus compound as a reducing agent into substantially only aldehyde functional groups. |
249 |
Process for modifying diene polymers |
US33665273 |
1973-02-28 |
US3914211A |
1975-10-21 |
UDDING ANNE C |
A process is described for modifying diene polymers with a monosubstituted hydroxyl amine to products having improved mechanical properties in the unvulcanized state.
|
250 |
Coating compositions and process for the production thereof |
US38325473 |
1973-07-27 |
US3893967A |
1975-07-08 |
SUNDER-PLASSMANN PAUL; GORKE KLAUS; DITTMANN WALTER |
Coating compositions comprising a phenolic adduct of an unsaturated liquid polybutadiene wherein said adduct consists essentially of: A. 62-75% BY WEIGHT OF A LIQUID POLYBUTADIENE HAVING, PRIOR TO THE ADDUCT FORMATION, A VISCOSITY OF 200-5,000 CP. AT 20* C., a molecular weight of 500-4,000 as determined by vapor pressure osmosis, an iodine number of 400-470 g. iodine/100 g., and double bonds which are 50-95% in the cis-1,4 configuration; and B. CORRESPONDINGLY 38-25% BY WEIGHT OF PHENOL, 35-50% OF WHICH IS JOINED TO THE POLYBUTADIENE AS A PHENYL ETHER AND THE REMAINING 65-50% OF WHICH IS JOINED THERETO ORTHO- AND PARA- TO THE PHENOLIC HYDROXY GROUP; SAID ADDUCT CONTAINING 5-35% OF THE OLEFINIC DOUBLE BONDS OF THE LIQUID POLYBUTADIENE.
|
251 |
Method for producing resin for printing ink |
US42104073 |
1973-12-03 |
US3887641A |
1975-06-03 |
TSUCHIYA SHOZO; HAYASHI HIDEO; SATO HISATAKE |
A method for producing a resin for printing ink, which comprises reacting a dicyclopentadiene resin with an unsaturated carboxylic acid or its anhydride to form an acid-modified resin, and reacting the acid-modified resin with a phenolformaldehyde resin at a temperature of 100* to 250*C., the amount of the phenolformaldehyde resin being at least 5 g per 100 g the acid-modified resin, thereby to form a resin having a softening point of at least 100*C.
|
252 |
Hardenable compositions |
US42734573 |
1973-12-21 |
US3886111A |
1975-05-27 |
YOSHIMURA HIKOJI; NAKAGAWA YUJI; YAGINUMA HIROSHI; KIMI ATSUTANE |
A hardenable composition comprising (A) a modified polypentadiene containing at least two hydroxyl groups in its molecular structure and of a hydroxyl value of 70-250, said modified polypentadiene being obtained by introducing the hydroxyl and acyloxy groups to the unsaturated double bonds of a liquid polypentadiene of a number average molecular weight of 300-5,000, (B) an organic diisocyanate compound and (C) a solvent which dissolves the modified polypentadiene and, in addition, is inert to the isocyanate group. The composition excels in coating and adhesive properties when cured.
|
253 |
Polymers of unsaturated hydrocarbons stabilized with ruthenium tetroxide |
US34724273 |
1973-04-02 |
US3838090A |
1974-09-24 |
DAUKSYS R |
THE ULTRAVIOLET LIGHT STABILITY OF POLYMERS OF UNSATURATED HYDROCARBONS IS IMPROVED BY IMMERSING THE POLYMERS IN A SOLUTION OF RUTHENIUM TETROXIDE IN CARBON TETRACHLORIDE. AFTER EXPOSURE TO ULTRAVIOLET LIGHT, THE POLYMERS SO TREATED RETAIN THEIR MECHANICAL PROPERTIES TO A SUBSTANTIAL EGREE, AND CRAZING OR CRACKING OF THE POLYMERS IS VIRTUALLY ELIMINATED.
|
254 |
Process for the defined increase of the molecular weight of solid,unsaturated elastomers |
US3696087D |
1970-05-22 |
US3696087A |
1972-10-03 |
NORDSIEK KARL-HEINZ |
THE MOLECULAR WEIGHT OF SOLID HYDROCARBON ELASTOMERS, E.G., POLYBUTADIENES, IS INCREASED STEP-WISE IN A DEFINED MANNER BY SUBJECTING THEM TO THERMAL-MECHANICAL TREATMENT IN WHICH THE ELASTOMER IS SUBJECTED TO STRONG SHEARING FORCES AT, E.G., 80-220*C., IN THE PRESENCE OF A NON-BASIC METALLIC COMPOUND AS CATALYST AND A BASIC COMPOUND AS COCATALYST.
|
255 |
Preparation of graft, block and crosslinked unsaturated polymers and copolymers by olefin metathesis |
US3692872D |
1969-12-04 |
US3692872A |
1972-09-19 |
CALDERON NISSIM; SCOTT KENNETH W |
A method is disclosed for preparing graft, block and crosslinked unsaturated polymers and interpolymers by subjecting polymers to catalysts capable of inducing the olefin metathesis reaction.
|
256 |
Mixture of fatty oil and polybutadiene treated by any two of the following: boiling,bodying,reaction with acids or acid anhydrides |
US3681276D |
1969-10-08 |
US3681276A |
1972-08-01 |
NAGAHISA MASANORI; KUSAKA YOSHIMI; IINO KOJI; YAMAMOTO ZEMICHIRO |
A MIXTURE OF NATURAL DRYING OR SEMI-DRYING OIL AND POLYBUTADIENE WHICH HAS A NUMBER AVERAGE MOLECULAR WEIGHT OF 200 TO 10,000 AND MORE THAN 50 PERCENT OF 1,2CONFIGURATION OF THE BUTADIENE UNIT IN ITS POLYMERIC CLAIM GIVES A COATING MATERIAL HAVING EXCELLENT PROPERTIES WHEN TREATED BY A BOILING TREATMENT, A BODYING TREATMENT AND AN ADDITION TREATMENT. AT LEAST TWO OF THESE THREE TREATMENTS MUST BE USED. THE BOILING OPERATION IS PERFORMED BY CONTACTING THE OIL COMPONENT WITH AIR OXYGEN AT A TEMPERATURE BETWEEN 60*C. AND 150*C., THE BODYING OPERATION IS PERFORMED BY A THERMAL TREATMENT AT A TEMPERATURE BETWEEN 100*C. AND 300*C. IN AN INERT ATMOSPHERE AND THE ADDITION OR ESTERIFICATION OPERATION IS PERFORMED BY REACTING WITH ORGANIC COMPOUNDS SELECTED FROM THE GROUP CONSISTING OF MONO OR POLY CARBOXYLIC COMPOUNDS, ANHYDRIDE THEREOF AND CYCLOALIPHATIC DIENES IN AN INERT ATMOSPHERE.
|
257 |
Treating polybutadiene |
US3668162D |
1968-11-25 |
US3668162A |
1972-06-06 |
WILT MASON S |
Polybutadienes are treated with titanium tetrachloride and molecular oxygen to form modified polybutadiene products having substantially higher Mooney viscosities, characterized by a reduced tendency to cold flow.
|
258 |
Polymers and copolymers of butadiene etc. having relatively wide molecular-weight distribution |
US3644324D |
1970-02-02 |
US3644324A |
1972-02-22 |
HALASA ADEL F |
POLYMERS WHICH ARE HOMOPOLYMERS OF HYDROCARBON CONJUGATED DIENES OF 4 TO 6 CARBON ATOMS OR COPOLYMERS OF SUCH DIENES OR COPOLYMERS OF SUCH DIENES WITH STYRENE OR A DERIVATIVE OF STYRENE, WHICH POLYMERS POSSESS OBJECTIONABLE COLD FLOW, ARE JOINED BY USE OF A LITHIUM-BASE CATALYST AND TITANIUM CHLORIDE TO PRODUCE A POLYMER HAVING NO COLD FLOW. THE RESULTING POLYMERS AND COPOLYMERS HAVE A BROADENED MOLECULAR WEIGHT DISTRIBUTION AND EXCELLENT MILL-PROCESSABILITY.
|
259 |
Process for the preparation of gel-containing synthetic conjugated diene solution polymers |
US3642762D |
1969-02-07 |
US3642762A |
1972-02-15 |
HEIJ GERARDUS E LA; AMERONGEN GERRIT J VAN |
CONJUGATED DIENE SOLUTION RUBBER COMPOSITIONS HAVING IMPROVED GREEN STRENGHT COMBINED WITH SATISFACTORY IMPROVED GREEN STRENGTH COMBINED WITH SATISFACTORY PROCESSABILITY ARE OBTAINED BY TREATMENT OF A SOLUTION DIENE RUBBER, IN AQUEOUS DISPERSION, WITH A REDOX HYDROPEROXIDE SYSTEM TO PRODUCE A COMPOSITION HAVEING 5-60 WEIGHT PERCENT TOLUENE-INSOLUBLE GEL.
|
260 |
Process for treating polymers and product thereof |
US3595851D |
1969-08-29 |
US3595851A |
1971-07-27 |
BOUTSICARIS STEPHEN P; HAYES ROBERT A |
THIS INVENTION INVOLVES A PROCESS FOR PREPARING HARD, TOUGH, HEAT-RESISTANT PLASTICS OF IMPROVED ADHESION BY THE PEROXIDE CURING OF HYDROXY AND ACYLOXY DERIVATIVES OF BUTADIENE LIQUID POLYMERS HAVING A MOLECULAR WEIGHT OF 1,000-10,000, AND HAVING A HIGH VINYL CONTENT, USING A PEROXIDE WHICH GIVES FREE RAICALS OF THE STRUCTURE R2(CH3)CO.. ALTHOUGH THE PEROXIDE CURING OF BUTADIENE POLYMERS GENERALLY RESULTS IN PRODUCTS HAVING ELASTOMER PROPERTIES AND BEING SWELLABLE IN BENZENE, THE PROCESS OF THIS INVENTION PERMITS CURING OF ESTERIFIED OR HYDROXYLATED BUTADIENE POLYMERS TO GIVE RIGID, HEAT-RESISTANT POLYMERS OF IMPROVED ADHESION AND WETTABILITY. THE BUTADIENE POLYMER PRIOR TO ESTERIFICATION OR HYDROXYLATION HAS AT LEAST 40%, PREFERABLY AT LEAST 70% BY WEIGHT BUTADIENE THEREIN, ADVANTAGEUSLY HAVING AT LEAST 60% AND PREFERABLY AT LEAST 80% OF THE BUTADIENE IN THE VINYL-TYPE OF REPEATING UNITS, THE AVERAGE MOLECULAR WEIGHT BEING 1,00010,000, PREFERABLY 3,000 TO 10,000. AFTER ESTERIFICATION OR HYDROXYLATION, THE CONTENT OF VINYL-TYPE OF REPEATING UNIT IS AT LEAST 50% OF THE REAMINING BUTADIENE REPEATING UNITS. THE PROPORTION OF PEROXIDE USED, PREFERABLY DICUMYL PEROXIDE, IS 0.5-8 PREFERABLY 1-7 PARTS PER 100 PARTS OF POLYMER, AND THE CURING TEMPERATURE IS AT LEAST 250*F. (120*C.), PREFERABLY 300-350*F. (150180*C.). THIS PROCESS LENDS ITSELF TO LIQUID COMPOUNDING FOR THE INCORPORATION OF THE PEROXIDE AND ANY MODIFIERS, AND FOR MIXING WITH FILLER.
|