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WO/1994/000537 |
Compositions comprising copolymers of ethylene and an ester of an unsaturated alcohol and a carboxylic acid having at least 3 carbon atoms improve the low temperature properties of fuel oils.
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WO/1994/000515 |
Compositions comprising two or more re-esterified ethylene-unsaturated ester copolymers, for example ethylene-vinyl acetate copolymers, improve the low temperature properties of fuel oils.
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WO/1993/025593 |
A process which comprises reacting maleic anhydride and a primary or secondary C1-C18 alcohol to form a maleic half ester, and then polymerizing the half ester and monoalkenyl aromatic monomer in ester solvent in the presence of a cataly...
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WO/1993/024488 |
The invention relates to a bismaleimide compound of formula (I) substantially free of oligomeric, amidic and uncyclized impurities, wherein Ar is an optionally substituted aromatic residue; and Ar' is an optionally substituted aromatic r...
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WO/1993/023444 |
Novel block copolymers comprising from 20 to 95 mole % of monomer units derived from itaconic acid or a homologue thereof and from 5 to 80 mole % of monomer units derived from vinyl alcohol or a lower vinyl ester are excellent binders of...
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WO/1993/023456 |
A biodegradable interpolymer and composition is prepared by the reactive blending of a synthetic polymer having functional groups with a naturally occurring biodegradable polymer such as a carbohydrate or protein compound. During reactiv...
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WO/1993/023445 |
Copolymers contain, as characteristic polymerized monomer units, (a) 2 to 50 mol % vinylalkylether with 3 to 30 C atoms in the molecule; (b) 10 to 88 mol % monoethylenically unsaturated dicarboxylic acid anhydrides and (c) 10 to 88 mol %...
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WO/1993/022357 |
The use of copolymers obtainable by the radically initiated polymerisation of A) 50 to 99.9 wt % of an olefinically unsaturated C¿3? to C¿5? monocarboxylic acid, an olefinically unsaturated C¿4? to C¿8? bicarboxylic acid or its anhyd...
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WO/1993/022358 |
A copolymer obtainable by the radically initiated polymerisation of: A) 80 to 99.99 wt % of an olefinically unsaturated C¿3? to C¿5? monocarboxylic acid, an olefinically unsaturated C¿4? to C¿8? bicarboxylic acid or its anhydride or ...
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WO/1993/022356 |
The invention relates to crosslinked polymers and methods for making crosslinked polymers using 1',6,6'-trimethacryloyl-2,3,3',4,4'-penta-O-methylsucrose as a novel crosslinking agent. The invention is particularly suitable for crosslink...
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WO/1993/022409 |
Electrorheological fluids which exhibit good high temperature performance are made using as the disperse phase a salt of a polymer of an alkenyl substituted aromatic comonomer such as styrene and a maleic acid comonomer or derivative the...
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WO/1993/021243 |
Carboxylic polymers useful in detergent compositions contain keto structural units incorporated into the polymer backbone. The units may be introduced by means of the compound 2,2'-diphenyl-4-methylene-1,3-dioxolane. The polymers show be...
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WO/1993/021556 |
Described is the use of a polymer containing, as the orientation layer in liquid-crystal displays, maleic imide units of the general formula (I), in which R?1¿ is hydrogen or an acyclic or cyclic aliphatic, aromatic or arylaliphatic gro...
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WO/1993/019126 |
A process for the production of an ethanol solution of an ethyl or butyl alkyl half-ester copolymer of maleic anhydride and an alkyl vinyl ether which comprises: (a) copolymerizing the monomers in acetone as solvent by simultaneously fee...
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WO/1993/018072 |
Inherently tacky pressure-sensitive acrylic polymers are formed by emulsion polymerization in the presence of at least one reactive multifunctional monomer having a cyanurate or phosphate functionality.
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WO/1993/018073 |
A process for producing copolymers from monoethylenically unsaturated monomers containing acid groups and from N-vinyl lactames and possibly from other monoethylenically unsaturated monomers by copolymerising the monomers in the presence...
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WO/1993/017831 |
The present invention relates to an abrasive article comprising: (a) a flexible substrate having a front side and a back side; (b) at least one layer of abrasive grains bonded to said front side of said substrate by means of a make coat;...
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WO/1993/017368 |
Aqueous processable photopolymerized compositions are disclosed which as cured compositions have flexibility which are used as permanent coatings, e.g. protection of printed circuitry.
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WO/1993/008243 |
The properties of oil and fuel oil compositions are improved by additive combinations comprising a polymer containing the repeating units (I, II) or (III, II) in combination with a comb-like polymer having aryl groups.
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WO/1993/005188 |
The description relates to the use of aqueous dispersions of co-oligomers from radically triggered aqueous emulsion copolymerisation in the weakly acid to neutrally adjusted pH range of: (a) semi-esters of maleic acid with oleophilic alc...
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WO/1993/003076 |
A high temperature heat resistant methacrylate-maleimide copolymer having at least 90 percent by weight methyl methacrylate monomer and up to about 10 percent by weight maleimide monomer to form a clear, weather-resistant copolymer havin...
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WO/1993/002117 |
What is provided herein is a sunscreen composition consisting essentially of a crosslinked, neutralized terpolymer of maleic anhydride, a C1-C5 alkyl vinyl ether and a C12-C14 alpha-olefin monomer as a thickener; water; an ultraviolet su...
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WO/1993/001220 |
A process for the manufacture of benzene-free maleic anhydride/lower alkyl vinyl ether polymer having a specific viscosity ranging from about 1.0 to about 5.5 by premixing maleic anhydride and the alkyl vinyl ether in a mole ratio of bet...
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WO/1992/015638 |
Process and intermediate for preparing an intrinsically foamed thermoplastic polymer comprising a vinyl monomer and maleic acid and/or maleic anhydride, in which process a polymer composition comprising: a) a core polymer based on: a.1) ...
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WO/1992/014767 |
Prepolymers having imide groupings and process for their preparation, for use in the production of resins capable of hardening under ionizing radiation. The prepolymers are derived from the reaction in a homogeneous liquid medium, at a t...
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WO/1992/011302 |
Copolymer compositions derived from (a) perfluoroalkylalkyl acrylate or methacrylate, (b) acrylic, methacrylic or itaconic acid, and (c) a hydroxyl-containing acrylate or methacrylate, in combination, can be cross-linked through internal...
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WO/1992/005221 |
This invention relates to superior bioadhesive compositions having time extended adhesive properties comprising a non-toxic carrier and a polymer having between about 45 and about 70 weight % of units having the structure (A). between ab...
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WO/1992/004405 |
What is described herein is a process for making ethanol solutions of alkyl half-esters of copolymers of maleic anhydride and a C1-C4 alkyl vinyl ether which are benzene and acetone-free. The invention is characterized by (a) precharging...
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WO/1992/002564 |
What is described herein is a process for making a copolymer of high specific viscosity by polymerisation of maleic anhydride and a C¿1?-C¿4? alkyl vinyl ether monomer. The invention involves polymerizing said monomers to form a slurry...
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WO/1992/002561 |
A process for the polymerization of selected acrylic and maleimide monomers by contacting the monomers with a diazotate, cyanate or hyponitrite, and N-chlorosuccinimide, N-bromosuccinimide or a diazonium salt. The polymers produced can t...
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WO/1992/001724 |
Terpolymers of maleic anhydride, a C¿1?-C¿5? alkyl vinyl ether and isobutylene or a C¿12?-C¿14? alpha-olefin, and crosslinked products thereof, are provided herein for use in thickener, denture adhesive, sunscreen, hair spray, and wa...
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WO/1991/018940 |
Branched polyanhydrides that have superior properties for use in the controlled delivery of substances, prepared by the polymerization of a dicarboxylic acid monomer and a branching agent. The branching agent is a polycarboxylic acid mon...
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WO/1991/018024 |
What is described herein is a process for making copolymers of maleic anhydride and C1-C4 alkyl vinyl ethers of predetermined specific viscosities extending over a wide viscosity range. The invention is characterized by (a) precharging a...
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WO/1991/016057 |
Colonic-targeted oral drug dosage forms composed of a drug confined within a crosslinked hydrogel that exhibits pH-dependent swelling and is composed of an ionizable comonomer such as acrylic acid, a nonionizable comonomer such as an acr...
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WO/1991/015527 |
The present invention relates to novel copolymers and contact lenses made from these copolymers comprising preformed silicone-containing acrylic star polymers and macromonomers, preparation of these contact lenses and a therapeutic metho...
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WO/1991/014721 |
Copolymers are made by reacting maleic anhydride or a related compound with a 4-vinyl-1,3-dioxolane in the presence of a free radical initiator. The dioxolane reactant can be made by reacting a ketone with 3,4-epoxy-1-butene, or a substi...
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WO/1991/014716 |
Slurry copolymerization of maleic anhydride with (meth)acrylic acid and, optionally, with C�1?-C�4? alkyl vinyl ether in a cosolvent system of cyclohexane and ethyl acetate yields a pumpable slurry, from which uniform, fine, white po...
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WO/1991/014720 |
Copolymers are produced when 3,4-epoxy-1-butene (EpB) is copolymerized with maleic anhydride. The copolymerization is initiated by free radicals, and comprises both 1,2-propagation and 1,5-propagation of EpB. When an ether is used as the...
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WO/1991/013922 |
In one embodiment this invention provides vinylidene copolymer with alternating monomeric units as illustrated by structure (I). An invention vinylidene copolymer in the form of an electret film exhibits a high level of longitudinal piez...
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WO/1991/013101 |
A method is disclosed for the catalytic polymerization of cyanoacrylate monomers by contacting said monomers with an organotin compound. Also included is a polymerizable system comprising cyanoacrylate monomer and an organotin compound, ...
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WO/1991/010689 |
A polymerization process is described herein for making crosslinked copolymers of maleic anhydride and an alkyl vinyl ether characterized in that polymerization is carried out in a solvent system which is a mixture of a carboxylic acid e...
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WO/1991/009888 |
The invention relates to copolymers with an average content of 1.25 to 30 functional groups per molecule and an average molecular weight of from 1500 to 6000 which can be produced by radical solution polymerisation at 130 to 200 �C fro...
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WO/1991/005812 |
Imide-containing polymers of styrene-type monomers are prepared by a process comprising solution polymerizing under free radical polymerization conditions a polymerizable monomer composition comprising at least one vinylaromatic monomer ...
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WO/1991/005002 |
A thermosetting resin is comprised of (a) a bisimide, particularly a bismaleimide, (b) a polyphenol, particularly a bisphenol, and (c) dicyandiamide. The polyphenol may be styrene-terminated (i.e. a vinyl benzyl ether of a bisphenol). Fl...
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WO/1991/004959 |
A process for preparing an oligomeric copolymer of an unsaturated acidic reactant and a high molecular weight olefin having a sufficient number of carbon atoms such that the resulting copolymer is soluble in lubricating oil and wherein a...
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WO/1991/003521 |
The invention relates to polymers containing units of the structure (A) and (B) or (B-1) or (B-2), or mixtures of A with more than one of B, B-1 and B-2; wherein R and R1 are each independently C1 to C18 alkyl; R2 is oxygen, sulfur or -N...
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WO/1991/002013 |
Curable bisimide compositions containing at least one biscitraconimide having general formula (I), wherein D is a divalent group, R is CH2-R1, and R1 is independently selected from hydrogen and alkyl groups having 1-18 carbon atoms; at l...
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WO/1991/002094 |
Copolymerizates obtained by radical copolymerization of (a) C�8? to C�40? alkyl vinyl ethers, possibly mixed with up to 50 mol-% of C�8? to C�40? monoolefins, with (B) ethylenically unsaturated C�4? to C�8? dicarboxylic acid ...
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WO/1991/000886 |
APO-BMI is chain-extended with certain diamines to provide thermosetting resins retaining the improved properties of APO-BMI resins, but having increased toughness in the cured resins.
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WO/1991/000879 |
A curable composition comprising at least one biscitraconimide unit having formula (I), wherein D is a divalent group, R is CH2-R1 and R1 is independently selected from the group consisting of hydrogen and alkyl groups having 1 to 18 car...
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