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| Number | Title | Issue Date |
| 5288814 | Easy to disperse polycarboxylic acid thickeners An interpolymer of at least one olefinically unsaturated carboxylic acid containing at least one activated carbon-to-carbon olefinic double bond and at least one carboxyl group, in an amount of more than 15% by weight based upon the weight of the interpol... | 02/22/1994 |
| 5288767 | Two-component adhesive composition for the chemical fixing technique A two-component adhesive composition for the chemical fixing technique comprises a radical-curable synthetic resin having a viscosity of from 100 to 10 000 mPa.s at 23° C. and spatially separated therefrom--a curing agent of the synthetic resin. The synt... | 02/22/1994 |
| 5286789 | Solid phase multiple peptide synthesis Methods and compositions are provided, where oligopeptides are produced on a transparent surface while retaining transparency by the cyclical addition of protected monomers. Reagents are specifically selected to allow for efficient reproducible addition, ... | 02/15/1994 |
| 5281750 | Chiral polymers for the production of excess enantiomers The present invention relates to chiral supports and to their use in the asymmetric synthesis, deracemization and optical inversion of organic chiral compounds. In particular, the supports are used in combination with thermal equilibration of a species ha... | 01/25/1994 |
| 5278240 | Oil soluble amino-substituted polymers containing graft polymer segments derived from aromatic nitrogen-containing monomers The novel polymers of the present invention are prepared by graft polymerization of at least one aromatic nitrogen-containing monomer onto an amino-substituted polymer (e.g., an ethylene alpha-olefin interpolymer substituted by primary amino or secondary ... | 01/11/1994 |
| 5278248 | Water-soluble polymers and/or copolymers possessing increased biodegradability, and their applications Water-soluble polymers and/or copolymers possessing enhanced biodegradability, and their applications are disclosed. Acrylic and/or vinyl polymers and/or copolymers containing acid groups, in which 35% to 90% of the active acid sites are neutralized by magnesi... | 01/11/1994 |
| 5278241 | Amino-substituted polymers containing graft polymer segments derived from aromatic nitrogen-containing monomers The novel polymers of the present invention are prepared by graft polymerization of at least one aromatic nitrogen-containing monomer onto a low Tg amino-substituted polymer (e.g., an ethylene alpha-olefin interpolymer substituted by primary am... | 01/11/1994 |
| 5274050 | Organic liquid absorbent compositions based on phosphonic acid-containing polymers and di- or polyamines Compositions useful as absorbents for organic liquids are disclosed. A diamine or polyamine is reacted with a polymeric resin that contains phosphonic acid groups to produce the absorbent compositions of the invention. Because the polymeric resin componen... | 12/28/1993 |
| 5272211 | Block copolymers of dienes, vinylarenes, and alkylmethacrylates as modified viscosity index improvers Polymers comprising blocks of a hydrogenated conjugated diene (B), a vinylarene (A), and an alkyl methacrylate (M), are readily prepared as a mixture of molecules having the structures B-A-M and B-A-M-A-B wherein both structures are effective as viscosity... | 12/21/1993 |
| 5272219 | Process for preparing amino or hydrazino peroxides, derivatives and their uses This invention relates to procedures for preparing novel reactive amino or hydrazino peroxides (hereinafter generally referred to as "AHP's") and derivatives all having a Structure A: ##STR1## in which the definitions of P, R11, R22, X, Q and x, y an... | 12/21/1993 |
| 5264483 | Imide polymers Glutarimide polymers having an acid and anhydride content lower than the acid and/or anhydride content normally present in the glutarimide polymers. Blends of the reduced acid and anhydride glutarimide polymers with thermoplastic materials are disclosed. ... | 11/23/1993 |
| 5262484 | Azlactone graft copolymers Graft copolymers and processes for the preparation thereof are provided. The copolymers comprise a base polymer having grafted thereto a monomeric 2-alkenyl azlactone. The surface properties of the graft copolymers can be modified by binding thereto nucle... | 11/16/1993 |
| 5262490 | Fluoroelastomer composition with organo-onium compounds A fluoroelastomer composition is disclosed comprising an elastomeric polymer and a combination of a sulfonium compound and an ammonium or phosphonium compound. Shaped articles comprising the composition are also disclosed.... | 11/16/1993 |
| 5260386 | Synthesis of tagged polymers by post-polymerization (trans) amidation reaction A polymer having pendant fluorescent groups is prepared by (trans)amidation of a preformed polymer by reaction with an amine-containing organic fluorescent composition of the Formula III ##STR1## wherein one of R5 and R6 may be ... | 11/09/1993 |
| 5254634 | Crosslinked copolymer particles and process for producing the same Crosslinked copolymer particles comprising hydrophilic crosslinked copolymer particles with a hydrophobic functional group being bonded thereto via an oxygen atom derived from a hydroxyl group of said hydrophilic crosslinked copolymer, which are obtained ... | 10/19/1993 |
| 5254636 | Rapid hydrolysis of crosslinked maleic anhydride/lower alkyl vinyl ether copolymers This invention relates to a process which significantly reduces the time for hydrolyzing a crosslinked maleic anhydride/lower alkyl vinyl ether copolymer to a clear gel which comprises suspending or dispersing fine granules of the crosslinked copolymer in... | 10/19/1993 |
| 5252692 | Hydrophilic acrylic copolymers and method of preparation Novel amphoteric acrylic and methacrylic copolymers are described comprising cationic units of pendant N-substituted amidine and anionic units of acrylic or methacrylic acid and/or acidic groups carried by substituents of N-acrylamide, N-methacrylamide, N... | 10/12/1993 |
| 5241002 | Anionic living polymers, their derivatives and composition comprising them The methacrylic ester polymers produced according to this invention are uniquely distinguished from the radically prepared polymers of similar composition by the fact that both polymers produced: by anionic living polymerization and by deactivating the ac... | 08/31/1993 |
| 5241003 | Ashless dispersants formed from substituted acylating agents and their production and use Succinimides, succinic esters, and succinic ester-amides are formed by (A) reacting (i) at least one substantially aliphatic polymer of at least one lower olefin, and (ii) an acidic reactant or a mixture of two or more acidic reactants represented by the ... | 08/31/1993 |
| 5240544 | Adhesive composition An adhesive composition comprising a modified, ethylene/-olefin copolymer rubber or a modified, ethylene/-olefin/non-conjugated diene copolymer rubber containing 0.1-10% by weight of at least one member selected from the group consisting of ... | 08/31/1993 |
| 5237017 | Process for producing imidized acrylic resins Copolymerization is started by reacts in and acrylamide represented by the general formula ##STR1## wherein R1 represents a hydrogen atom or a methyl group and R2 represents a hydrogen atom, an alkyl group, an aryl group or an a... | 08/17/1993 |
| 5237028 | Organic liquid absorbent compositions based on phosphonic acid-containing polymers and di- or polyamines Compositions useful as absorbents for organic liquids are disclosed. A diamine or polyamine is reacted with a polymeric resin that contains phosphonic acid groups to produce the absorbent compositions of the invention. Because the polymeric resin componen... | 08/17/1993 |
| 5235028 | Polyethylene glycol derivatives for solid-phase applications The present invention pertains to polyethylene glycol (PEG) derivatized graft supports, to methods for making these supports and to methods of using the supports to synthesize peptides by solid-phase synthesis techniques. The PEG-graft supports of this in... | 08/10/1993 |
| 5229467 | Copolymers containing amino groups, process for their preparation and their use in coating agents The invention relates to copolymers containing amino groups and having an amine number of 30 to 150 mg of KOH/g and a number-average molecular weight of 1,500 to 8,000, which can be prepared from copolymers containing alkyl ester groups by aminolysis with... | 07/20/1993 |
| 5225496 | Methacrylimide group-containing polymer A methacrylimide group-containing polymer containing repeating units represented by the following general formulas, respectively. ##STR1## wherein R1, R2 and R3 are preferably methyl, butyl and methyl ester group, res... | 07/06/1993 |
| 5223580 | Process for making a charge imbalanced polymer A charge imbalanced polymer is made by: reacting 1 mole of an anhydride compound having the formula ##STR1## where R is C1 -C4 alkyl, with less than 1 mole of a mixture of about 0.1-0.8 mole of a compound having the formula ##ST... | 06/29/1993 |
| 5216086 | Synthesis of tagged polymers by post-polymerization (trans)amidation reaction Polymers tagged with pendant fluorescent groups are prepared by the (trans)amidation derivatization of pre-existing polymers having carbonyl-type pendant groups. Polymers having pendant amide groups wherein the amide nitrogen is substituted with fluoresce... | 06/01/1993 |
| 5212248 | Preparation of hydrocarbons and polymers with allylic chloride end groups Friedel-Crafts catalyst Hydrocarbons and polymers thereof, of the structure (I) R--C(CH3)2 --CH2 --C(CH3)2 --CH2 --CH.dbd.CH--CH2 --Cl (I) where R is a hydrocarbon radical, are prep... | 05/18/1993 |
| 5210146 | Multifunctional viscosity index improver derived from polyamine containing one primary amino group and at least one secondary amino group exhibiting improved low temperature viscometric properties Composition of matter useful as a multifunctional viscosity index improver for lubricating oils comprising reaction product of: (i) (a) copolymer of ethylene and at least one other alpha-olefin monomer, said copolymer comprising intramolecularly heterogeneous ... | 05/11/1993 |
| 5208295 | Charge imbalanced polyelectrolyte composition A charge imbalanced composition comprising: (a) about 10 to 90 mole % of an amphoteric copolymer having the formula ##STR1## where R=alkyl C1 -C4, N=1-6, R1 and R2 are independently alkyl C1 -C6 | 05/04/1993 |
| 5208264 | Process for producing an aminophosphoric acid-type chelate resin A process for producing an aminophosphoric acid-type chelate resin, which comprises aminating halomethyl groups of a polymer having the halomethyl groups on aromatic nuclei, followed by phosphomethylation, wherein the amination reaction is conducted by me... | 05/04/1993 |
| 5204376 | Anion Exchanger and a method for treating a fluid The present invention relates to a new anion exchanger with excellent heat resistance and its use for treating a fluid to remove unwanted or unnecessary substances from it. The anion exchanger has functional groups of the formula: ##STR1##... | 04/20/1993 |
| 5200473 | Chelating resins and method for their use in the extraction of metal ions For the preparation of hydrophilic polymer resins with functional groups on ligands, one reacts a resin which consists of units of formula I, in which R1 is hydrogen or an aliphatic residue, with a ligand in the presence of a coupling agent. Th... | 04/06/1993 |
| 5198531 | Polymeric resin for peptide synthesis A polymeric resin for the preparation of peptides utilizing a polymeric matrix such as polystyrene-divinylbenzene copolymer. A vanillyl alcohol (HMBA), Trityl alcohol, or Trityl Amine group is attached to the polymeric carrier for use in the building poly... | 03/30/1993 |
| 5189111 | Aminoalkylated side-chains-containing vinylic copolymers Water-dilutable side-chain-containing vinylic copolymers comprising groups (γ) of the formula --X--Alk--Y-- (I), wherein Alk signifies alkylene with 2-6 carbon atoms or hydroxysubstituted alkylene with 3-6 carbon a... | 02/23/1993 |
| 5187237 | Cross-linked epoxy resins with non-linear optical properties The epoxy resins according to the invention demonstrate the following structure: ##STR1## The cross-linked epoxy resins exhibit non-linear optical properties.... | 02/16/1993 |
| 5185401 | Monofunctional polymers of olefins and block copolymers obtained therefrom Functional polyolefins containing a terminal functional group; the block copolymers that can be obtained from such polyolefins by reaction with polymers reactive with the functional groups and the precursors used for the preparation of the functionalized ... | 02/09/1993 |
| 5179136 | Gelatin of acrylamide-containing polymers with aminobenzoic acid compounds and water dispersible aldehydes A novel composition and process are disclosed for forming crosslinked gels at elevated temperatures utilize a novel crosslinking agent comprising at least one aminobenzoic acid compound and a water dispersible aldehyde or aldehyde generating compound.... | 01/12/1993 |
| 5162445 | Para-alkylstyrene/isoolefin copolymers and functionalized copolymers thereof A copolymer of a C4 to C7 isoolefin and a para-alkylstyrene is provided as well as the corresponding halogenated, functionalized and grafted derivatives thereof. Processes for producing these copolymers are also provided.... | 11/10/1992 |
| 5159058 | Polyglutarimides with improved properties Polyglutarimides exhibit improved optical properties, as well as lowered content of non-aqueous volatiles, when the molten polyglutarimide is mixed with water, methanol, ethanol, or mixtures thereof, and the water, methanol, ethanol, or mixtures thereof i... | 10/27/1992 |
