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7619050 |
Alkoxyamines containing a radically polymerizable group
The instant invention relates to novel alkoxyamine initiators/regulators containing an ethylenically unsaturated, radically polymerizable group. The compounds are useful for the preparation of...
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7566762 |
Process for preparing fluoropolymer
The present invention relates to a process for preparing a fluoropolymer containing at least one kind of fluoroolefin, which comprises carrying out polymerization in the presence of a surfactant...
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7524912 |
Preparation of linear ethylene-acrylate copolymers with palladium catalysts and free radical scavengers
A polymerizable composition including a late transition metal complex, a non-polar olefin, a polar olefin, and a free radical scavenger, wherein the polymerizable composition is capable of forming...
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7514511 |
Free radical polymerization process and polymers obtained thereby
Free radical polymerization process for preparing polymers with low polydispersity index and polymers obtained thereby. The process includes polymerizing at least one reactive monomer with at least...
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7488786 |
Oxathiazaphospholidine free radical control agent
This invention discloses a process for producing a polymer by controlled polymerization which comprises polymerizing at least one monomer in the presence of a free radical control agent of the...
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7417086 |
Coating compositions
Aqueous polymer compositions are provided that are suitable as coatings when dry. The coatings formed from such compositions have desirably low level of yellowness, both when new and upon aging....
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7385016 |
Curable resin compositions and process for preparing oligomers containing acrylate groups and substituted methacrylate groups
A curable resin composition which exhibits excellent hardness of their curing products as well as storage stability is provided, and a simple method to obtain acrylated resins is provided. The...
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7345120 |
Moisture cure non-isocyanate acrylic coatings
An acrylic polymer having pendant alkoxysilane comprising the free radical reaction product of a polysiloxane, an N-alkylphosphonate N-oxylalkyl ester initiator; and ethylenically unsaturated...
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7300990 |
Zwitterionic polymers
Polymers may be made from zwitterionic monomers having controlled architectures and molecular weights, using living polymerisations such as group or atom transfer radical polymerisation. For...
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7285610 |
Synthesis method for polymers by controlled radical polymerisation with xanthates
A polymer composition and method of preparing same is described wherein an ethylenically unsaturated monomer is contacted with a source of free radicals and a compound of formula (1A), (1B) and...
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7250479 |
Polymerization with living characteristics
This invention concerns a free radical polymerization process, selected chain transfer agents employed in the process and polymers made thereby, in which the process comprises preparing polymer of...
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7247688 |
Method for synthesis of block polymers by controlled free radical polymerization
The invention concerns a method for preparing a first generation polymer comprising a step which consists in free radical polymerization of a composition comprising: at least an ethylenically...
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7125938 |
Atom or group transfer radical polymerization
A polymerization process comprising initiating a first polymerization of monomers using an initiator functionalized with an ATRP initiating site, wherein the first polymerization is selected from...
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7022805 |
Process for the preparation of acetal polymers
The present invention relates to a process for the preparation of acetal polymers, in particular of polyoxymethylene (POM) by cationic polymerization where organophosphonic and/or organophosphinic...
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7001966 |
Method for the production of isobutene polymers
The present invention relates to a process for preparing an isobutene polymer using a cyclopentene derivative as initiator and to the isobutene polymer obtainable by means of the process and to...
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6995219 |
Olefin polymerization process
The invention relates to a process for the preparation of a multimodal A-olefin polymer comprising polymerizing in a polymerization stage at least one A-olefin in the presence of a multisite...
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6936647 |
Bead polymerizates containing halogen-free phosphourus compounds
The present invention relates to novel crosslinked bead polymers having an average particle size of 1 to 1000 μm containing specific, halogen-free phosphorus compounds including triphenyl...
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6900280 |
Acid macromonomers and their method of preparation
The invention relates to a composition comprising: a) an acid monomer or oligomer of acrylic acid or of an acid derivative of acrylic acid or mixtures thereof; or a mixture of an ethylenically...
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6897264 |
Curable mixtures
A catalyst suitable for crosslinking reaction of a compound containing α,β-unsaturated carbonyl groups and a compound containing a CH-acidic methylene group is provided. A curable mixture...
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6878763 |
Free radical polymerization using acidified ethoxylated conjugated fatty ether surfactants
The free radical initiated addition polymerization of ethylenically unsaturated, particularly acrylic monomers in which the dispersed phase is stabilised by a surfactant including at least one...
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6825290 |
Process for the preparation of latices using block copolymers as surfactants
A subject-matter of the present invention is a process for the preparation of a latex by radical aqueous emulsion polymerization in the presence of at least one ethylenically unsaturated monomer,...
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6809165 |
Method for producing polymers
A process for the preparation of polymers is described, wherein at least one first ethylenically unsaturated monomer is subjected to a free radical polymerization in the presence of stable free...
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6803429 |
Selective ring-opening cross-metathesis of cycloolefins
A catalytic method is provided for a ring-opening cross-metathesis reaction between a cycloolefinic substrate and a second olefinic reactant, wherein the catalyst used is a transition metal...
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6747111 |
Polymerization process with living characteristics and polymers made therefrom
A free radical polymerization process suitable for synthesizingpolymers is disclosed. The process utilizes novel sulfur based chain transfer agents and is widely compatible over a range of monomers...
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6667374 |
Polymer flocculants with improved dewatering characteristics
A high molecular weight water soluble acrylamide based polymer having improved flocculating and dewatering properties is provided. The polymer is prepared by a process in which a small quantity of...
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6646079 |
Multimodal polymers by controlled radical polymerization in the presence of alkoxyamines
For the preparation of a multimodal polymer at least one monomer is subjected to free radical polymerization in the presence of several alkoxyamines comprising the sequence of formula: in which...
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6624265 |
Ruthenium metal alkylidene complexes coordinated with triazolylidene ligands that exhibit high olefin metathesis activity
The invention discloses ruthenium alkylidene complexes of the type (PCy 3 )(L)Cl 2 Ru(CHPh), where L is a triazolylidene ligand of the general formula: These catalysts have been found to be...
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6569967 |
Alkoxyamines derived from β-phosphorous nitroxides
The invention concerns alkoxyamines derived from β-phosphorous nitroxides corresponding to formula (I). Said compounds can be used as (co)polymerization initiators of at least a monomer...
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6559326 |
Substituted phosphinophenoxide-metal complexes for the polymerization of olefins
Metal complexes obtainable from a metal precursor of a metal of the 6 th -10 th groups of the Periodic Table in the oxidation state 0 or +2 and a ligand of the formula I, where the radicals are...
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6528599 |
Method for preparing living polymer in the presence of phosphazenium salt
The present invention provides a method of preparing a polymer, which comprises subjecting a monomer containing at least a polar unsaturated compound to anionic polymerization in the presence of a...
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6479603 |
Method for living free-radical polymerization
The invention provides a process for the living free radical addition polymerization of one or more ethylenically unsaturated monomers using at least one free-radical polymerization initiator and...
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6472486 |
Controlled stable free radical emulsion polymerization processes
Controlled stable free radical emulsion polymerization processes employ nitroxide control agents having an alpha carbon atom bearing a destabilizing substituent such as hydrogen. The emulsion...
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6465585 |
Chromium-based catalyst composition for producing conjugated diene polymers
A catalyst composition that is the combination of or the reaction product of ingredients comprising (a) a chromium-containing compound; (b) an organomagnesium compound; and (c) a silyl phosphonate,...
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6465538 |
Method for polymerizing contact lenses
A method for photopolymerizing a monomer mixture to form a lens involves charging to a mold a monomer mixture including lens-forming monomers, and exposing the monomer mixture in the mold to a...
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6433237 |
Iron-based catalyst composition for producing oligomers of conjugated dienes
A catalyst composition that is the combination of or the reaction product of ingredients comprising (a) (i) a halogen-containing iron compound or (ii) an iron-containing compound and a...
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6433091 |
Adhesive composition
A methacrylate ester or acrylate ester two-part reactive adhesive composition including vinyl-terminated liquid rubber and polymeric elastomer. The vinyl-terminated liquid rubber is preferably...
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6417306 |
Transparent heat-resistant resin and production process therefor
The present invention provides: a transparent heat-resistant resin that has a small amount of both the residual maleimide monomer and the maleimide monomer generated by heating in order to carry...
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6384164 |
Process for the preparation of a branched diene elastomer via an anionic route
The present invention provides a process for preparing a branched diene elastomer having a high proporation of starred chains comprising anionically polymerizing at least one conjugated diene...
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6384111 |
Polymers containing carboxyl groups and polyalkylene ether side- chains as additives in mineral building materials
Additives for mineral building materials made of water-soluble or water-dispersible polymers containing a carboxyl group, optionally in latent form, and at least one side chain of formula I: ...
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6353065 |
Emulsion polymerization in the presence of a stable free radical
A process for the emulsion polymerization in the presence of a stable free radical of at least one monomer which can be polymerized by the radical route, which emulsion comprises a liquid aqueous...
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6335406 |
Method for production of absorbent resin excelling in durability
A method for the production of (D) an absorbent resin excelling in durability, which method comprises polymerizing (A) 30% by weight to saturated concentration of (A) an aqueous water-soluble...
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6303722 |
Method for preparing (co)polymers having a narrow molecular weight distribution
The present invention concerns a novel method for preparing polymers (preferably (meth)acrylate polymers and copolymers) having a narrow molecular weight distribution by metal-free anionic...
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6271324 |
Method for preparing polyacryl(meth)acrylates
Homopolymers, copolymers or block copolymers are prepared by anionic polymerization of acrylates and/or methacrylates in the presence of an initiator composition containing A) an organic alkali...
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6251962 |
(Co)polymers by photopolymerization
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6218456 |
Anticorrosion binders comprising phosphate or phosphonate groups
An aqueous polymer dispersion obtainable by emulsion polymerization of a monomer mixture A) comprising from 50 to 100% by weight of C 1 -C 18 alkyl (meth)acrylates, vinyl esters, vinylaromatic...
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6214945 |
Process for producing high molecular weight monovinylidene aromatic polymers and polymodal compositions
The present invention is an improved process for producing high molecular weight monovinylidene aromatic polymers and polymodal compositions by free radical polymerization of a vinyl aromatic...
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6143847 |
Method for preparing (co) polymers by metal-free anionic polymerization in the presence of a phosphonium cation containing at least one annellated aromatic ring
The present invention concerns a novel method for preparing polymers (preferably (meth)acrylate polymers and copolymers) having a narrow molecular weight distribution by metal-free anionic...
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6117961 |
Crosslinkable styrene based polymers having narrow molecular weight distribution
The present invention provides a process for producing a crosslinkable styrene or styrene derivative polymer having narrow molecular weight distribution by radical polymerization of a styrene or...
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6093780 |
Cyanoacrylate adhesive compositions with improved cured thermal properties
The present invention is directed to cyanoacrylate-based compositions, which include in addition to the cyanoacrylate component, a thermal-resistance conferring agent, such as an alkylating agent...
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6084044 |
Catalyzed process for producing high molecular weight monovinylidene aromatic polymers
The present invention is a process for producing a high molecular weight monovinylidene aromatic polymer, comprising free radically polymerizing a vinyl aromatic monomer in the presence of less...
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