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6566549 |
Continuous polymerization process and products therefrom
A continuous process for oligomers which do not contain, as polymerized units, carboxylic acid-containing monomers and their salts, including the steps of: (1) forming a reaction mixture,...
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6512058 |
Method of producing modified vinyl ether polymers
This invention relates to a method of producing modified vinyl ether polymers, wherein vinyl ether polymers comprising recurring units of general formula (I) where R represents a C 2 -C 4 alkyl...
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6335398 |
Super absorbent polymer composition
A super absorbent polymer composition comprising a chelating compound (A) which has a site capable of forming a chelate with a copper ion and whose copper salt has a solubility in physiological...
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6103448 |
Organometal-containing acrylate or methacrylate derivatives and photoresists containing the polymers thereof
Organometal-containing acrylate or methacrylate derivatives and photoresists comprising the polymers thereof. Unlike conventional matrix polymers of photoresist, the polymers induce a difference in...
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5756585 |
Star-shaped copolymers and process for their manufacture
A process for manufacturing a star shaped block polymer of formula (PA--PB--PC) n --N--(PD--PE) m wherein PA, PB and PC are respectively vinylaromatic/methacrylic blocks, acrylic blocks and...
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5665783 |
Recyclable regenerant for weak acid ion exhange resins
A composition for regenerating spent weak cation exchange resin and a method of utilization including salts of α-hydroxy carboxylic acids or o-hydroxy benzoic acids. The following steps are...
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5652311 |
N-oxidation process for amino-polymers
The present invention relates to a process for the N-oxidation of polyamine polymers comprising treating said polyamine polymers with an effective amount of hydrogen peroxide in an aqueous or...
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5567778 |
Process for producing an optical filter
Disclosed herein is an optical filter comprising: a resin material obtained by copolymerizing a monomer represented by the following formula (I) and a monomer copolymerizable therewith; and a...
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5466755 |
Optical filter
Disclosed herein is an optical filter comprising: a resin material obtained by copolymerizing a monomer represented by the following formula (I) and a monomer copolymerizable therewith; and a...
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5451618 |
Partially unsaturated triorganotin compounds for use in biocidal paint
Triorganotin toxicants are disclosed that are made of mixed saturated and unsaturated four-carbon chains with double bonds at C-1 and C-3. Incorporation of these compounds into random 50:50...
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5399633 |
Additives for the cure with peroxides of fluoroelastomers containing bromine or idodine to reduce alkylhalo emissions
The emission of the highly toxic volatile products, such as methyl bromides or iodides, or ethyl bromides or iodides, during the cure with peroxides of fluoroelastomers containing bromine or iodine...
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5244982 |
(Co)polymer cross linking process, cross-linked compositions, uses and shaped objects
Method for crosslinking (co)polymers comprising chlorine, ester, NH or carbonate groupings, according to which said (co)polymer is reacted at between 100° and 300° C., and without the presence of...
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5198503 |
Curable composition
A curable composition characterized in that the composition comprises: (a) a nonaqueous dispersion of a particulate polymer insoluble in an organic liquid and prepared by polymerizing a...
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4972027 |
Composition curable at low temperature
Disclosed is a composition curable at a low temperature and characterized in that the composition comprises: (a) a nonaqueous dispersion of a particulate polymer insoluble in an organic liquid...
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4970268 |
Thermoplastic rubber compositions
Disclosed is a composition, a process for making the composition, and blends comprising the composition, wherein the composition comprises (a) an at least partially neutralized carboxylated...
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4965316 |
Radiation sensitive polymers and use thereof
Organometal-containing polymers having side chains of the formula I ##STR1## in which, for example, M is Si, X is O, R 1 and R 2 are hydrogen and R 4 to R 6 are each methyl and which have an...
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4845165 |
Anionic diene polymerization process with branching
Metals from Groups I and II and organometallic compounds thereof can be used to catalyze the polymerization of diene monomers into polymers. The polymers formed in such polymerizations are...
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4837401 |
Curable polymer composition comprising organic polymer having silicon-contaiing reactive group
A curable polymer composition comprising (A) 100 parts by weight of an organic polymer having at least one silicon-containing reactive group of the formula: ##STR1## wherein R 1 is, the same or...
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4767804 |
Control of transformations within polymers and products thereof
The invention provides a polymer derivative comprising the reaction product of a metal compound and a polymer having functional groups. The metal compound may be an acetate, carbonate, chloride,...
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4721750 |
Primer composition
A primer composition comprising: (A) 100 parts by weight of copolymer obtained by reacting (1) an acrylic compound represented by the following general formula: ##STR1## wherein R 1 and R 2 ...
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4513117 |
Process for conversion of vinyl copolymers to vinylic alcohol copolymers by homogeneous reaction with organometallic compounds
A process as disclosed for producing vinylic alcohol copolymers by reacting vinyl ester or carbon monoxide copolymers with organometallic compounds in a homogeneous reaction medium.
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4463135 |
Process for the functionalization of polystyrene resins
There is disclosed a process for the functionalization of polymeric resins, wherein a halo-methylated resin, with a crosslink density of at least 4 percent is reacted with an alkyllithium wherein...
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4412064 |
Metal atom containing epoxy resins
It is disclosed that the properties of epoxy resins may be improved by incorporating therein at least one metal selected from the group consisting of boron, molybdenum, rhenium, tungsten and...
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4389514 |
Accelerated polymerization of acrylic monomers initiated by dialkyl and diaralkyl peroxide free radical generators in the presence of tin accelerators
A method of increasing the reaction rate of the polymerization and/or cross-linking of reactive polymerizable and/or cross-linkable acrylic monomeric materials initiated by dialkyl or diaralkyl...
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4334043 |
Metallic salt pre-treatment of crosslinkable co-polymers for eliminating tackiness
Crosslinkable polymers and co-polymers are treated with organo-metallic compounds, inorganic metallic salts, or lanthanides prior to crosslinking with free radical organic peroxide initiators in...
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4226958 |
Process for preparing organo-arsenic derivatives of polystyrene and related polymers
A process is described for the preparation of a polymer having a recurring unit of the formula: ##STR1## where R is hydrogen or methyl, C n H 2n is lower-alkylene, R 1 and R 2 are aryl or...
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4223111 |
Process for preparing arylarsine substituted polystyrene
A process is described for the preparation of a polymer having a recurring unit of the formula: ##STR1## where R is hydrogen or methyl, C n H 2n is lower-alkylene, R 1 and R 2 are aryl and x is...
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4209596 |
Two step process for producing vulcanized rubber
A rubber composition and a process for the preparation of rubber compositions comprising, in the presence of a metal oxide, vulcanizing, or vulcanizing after blending with another unsaturated...
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4197220 |
Impregnated metal-polymeric functional beads
Amine containing polymeric microspheres such as polyvinyl pyridine are complexed with metal salts or acids containing metals such as gold, platinum or iron. After reduction with sodium borohydride,...
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4125692 |
Process for producing a macromolecular compound having a functional group at each end of the molecule
Di or polyfunctional macromolecular compounds having a terminal functional group at each end of the molecule are produced by selectively cleaving the carbon-carbon double bonds of an unsaturated...
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4035447 |
Fire resistant polymer composition
A fire resistant polymer composition comprising 99.9 to 50 parts by weight of a copolymer consisting essentially of 90 to 10 weight percent nuclear-halogenated aromatic vinyl compound, 10 to 90...
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3969434 |
Process for preparing ionically crosslinked copolymers
Process for ionically crosslinking first copolymers formed by copolymerizing at least one alpha-olefin of the general formula RCH=CH 2 where R is hydrogen or hydrocarbyl having 1 to 8 carbon atoms...
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3965213 |
Conjugated diene butyl
Dehydrohalogenation of halogenated butyl to produce a butyl rubber having conjugated double bonds in the linear backbone. The composition is disclosed as having the predominant structure: ##EQU1##...
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3951924 |
Resin derivatives
Group II metal salts of the reaction product of a petroleum resin with an alpha, beta-ethylenically unsaturated acid or anhydride are prepared by reacting the reaction product, which contains free...
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3925511 |
Metallation of polymers and subsequent reaction to form modified or grafted polymers
Polymers containing activated hydrogen atoms (e.g., polybutadiene) are metallated by reaction with (A) an organolithium compound (e.g., n-butyllithium) and (B) a soluble complex of a potassium or...
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3920605 |
Metal-containing organic high molecular compound reinforced with particulate organic or inorganic material
A filler-reinforced, metal-containing, organic high molecular compound is formed from: (1) 100 parts by weight of a copolymer of 45-97% by weight of at least one member selected from the group...
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3920773 |
Modification of polymers
Method for modifying polymers which contain --CH=CH--groups by treating such polymers with a catalyst comprising a tungsten salt and an organo compound of a metal of groups I to IV of the Periodic...
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3920620 |
Curable compositions based on elastomeric vinylidene fluoride copolymers, process for curing the compositions, and the cured compositions
There are disclosed new curable compositions based on saturated linear and elastomeric copolymers of vinylidene fluoride with one or more fluorinated or chlorofluorinated, ethylenically unsaturated...
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3919131 |
Perhalogenated co-butyl rubber
Disclosed is a perhalogenated butyl rubber prepared by halogenating a butyl rubber having conjugated double bonds, a major portion of which are in the linear backbone. Also disclosed is a method...
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3872065 |
VULCANIZABLE FLUOROELASTOMER COMPOSITION
A vulcanizable fluoroelastomer composition having utility in the manufacture of cured fluoroelastomer articles can be prepared by blending the following components: (A) an elastomeric vinylidene...
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3803080 |
PROCESS FOR THE DEFINED INCREASE OF THE MOLECULAR WEIGHT OF SOLID, UNSATURATED ELASTOMERS
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...
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3725371 |
CATALYZED MOLECULAR SIZING PROCESS
Low molecular weight Butyl-type copolymers having narrow molecular weight distributions are prepared by contacting a higher molecular weight Butyl-type copolymer, e.g., a Butyl rubber, with a...
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3717600 |
MAGNESIUM OXIDE DISPERSIONS
MgO in combination with a rubber plasticizer and a surface active agent and/or metallic soap for use in chloroprene polymer compounding and processing.
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3607846 |
PROCESS OF JOINING LITHIATED POLYMERS OR COPOLYMERS
Polymers of increased molecular weight are produced from plastic and/or rubbery polymers derived from vinylidene monomers by reaction with an organic halogen compound in the presence of an alkali...
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3544541 |
VULCANIZABLE COMPOSITIONS CONTAINING AZIRIDINYL COMPOUND AND BASIC COMPOUND
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3513152 |
THERMALLY STABLE OLEFIN POLYMER
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3450797 |
PROCESS FOR OBTAINING A CONTROLLED INCREASE IN THE MOLECULAR WEIGHT OF UNSATURATED POLYMERIC HYDROCARBONS
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3404134 |
Process of crosslinking polymers
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3384612 |
Golf ball
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3310546 |
Curable chloroprene polymer composition and method of curing same
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