Abstract: The invention provides a method for preparing a 1-benzotriazolylcarbonate ester of a water-soluble and non-peptidic polymer by reacting a terminal hydroxyl group of a water-soluble and non-peptidic polymer with di(1-benzotriazolyl)carbonate in the presence of an amine base and an organic solvent. The polymer backbone can be poly(ethylene glycol). The 1-benzotriazolylcarbonate ester can then be reacted directly with a biologically active agent to form a biologically active polymer conjugate or reacted with an amino acid, such as lysine, to form an amino acid derivative.

Abstract: A process for manufacturing a highly water-soluble vinyl alcohol-N-vinyl amine copolymer with a degree of hydrolysis higher than 93%, including a hydrolysis reaction of a vinyl alcohol-N-vinyl formamide copolymer with an alkaline metal hydroxide in methanol wherein the process is carried out with more than 1.5 mol of the alkaline metal hydroxide per mol of N-vinyl formamide units and without addition of water. A higher water soluble vinyl alcohol-N-vinyl amine copolymer obtained by this process and the use thereof.

Abstract: The invention relates to hydrogels containing polyvinyl alcohols and/or polyvinyl alcohol copolymers having special geometries, methods for the production of said hydrogels, and the use of the hydrogels as materials in the biomedical and pharmaceutical field, for producing contact lenses, for the controlled release of active substances, as a carrier material for inclusion-immobilized biocatalysts, a carrier material for transition metal catalysts, a material for producing reactive membranes, an additive to drilling fluid, a displacing agent in oil recovery, a cement additive and an additive to highly viscous liquids such as crude oil to improve the flowability and increase the speed of conveyance, and a component of cosmetic products.

Abstract: The invention relates to coating formulations (B) which can be hardened to form coatings having a pencil hardness according to ISO 15184 of at least HB. Said formulations contain prepolymers (A) having alkoxysilane functions of general formula (6) —X—CH2—Si(OR)3-xR?x, wherein R represents hydrogen, an alkyl, cycloalkyl or aryl radical respectively having between 1 and 6 atoms, and the carbon chain can be broken by non-adjacent oxygen, sulphur or NR? groups; R? represents an alkyl, cycloalkyl, aryl or arylalkyl radical respectively having between 1 and 12 C atoms, and the carbon chain can be broken by non-adjacent oxygen, sulphur or NR? groups; R? represents hydrogen, an alkyl, cycloalkyl, aryl, aminoalkyl, or aspartate acid ester radical; X represents oxygen, sulphur or a group of general formula (20) —O—CO—NR?—; and x represents 0 or 1.

Abstract: The invention relates to high-molecular, crosslinked polyvinyl butyrals, obtainable by (self-) crosslinking polyvinyl butyrals that contain coacetalated, acid-functionalized aldehydes. The invention also relates to a method for producing the same and to the use thereof.

Abstract: A thermosetting urea-formaldehyde (UF) resin composition containing a rheological-enhancing amount of a thickening agent, the use of the resin composition for formulating an adhesive binder for preparing fiber mats and the fiber mats made using the adhesive binder, wherein improved mat properties and faster cure speeds can be obtained.

Abstract: A photosensitive resin which exhibits excellent storage stability, affinity, miscibility, or solubility with respect to a variety of compounds, and high sensitivity can be solidified even under hydrous conditions as well as exhibiting high cure-related sensitivity and high flexibility and being uniformly solidified even under highly hydrous conditions, a photosensitive resin composition containing the resin, and a novel compound. The photosensitive resin is a saponified poly(vinyl acetate)-based photosensitive resin having a structural unit represented by formula (1): (wherein R1 represents H or Me; R2 represents a linear or branched C2-C10 alkylene group; n is an integer of 1 to 3; X represents m is an integer of 0 to 6; and Y represents an aromatic ring or a single bond).

Abstract: Novel antenna polymers characterized by a polymeric background of a biodegradable water soluble polymer and chromophores chemically bonded to the polymeric background have been found to be useful as photocatalysts in aqueous media. On completion of the desired photochemical reaction, the residual medium can safely be discharged to the natural environment as the catalyst residues undergo biodegradation to form environmentally harmless products.

Abstract: A water-soluble substrate, and more particularly a water-soluble substrate that is resistant to dissolution, and methods of making the same are disclosed. The water-soluble substrate comprises a first surface and a second surface. A coating is applied to, and substantially covers at least one of said first and second surfaces. The elongation ratio between said coating and said water-soluble substrate is at least 1. Articles, such as pouches, made from the water-soluble substrate, are also disclosed herein.

Abstract: The invention relates to a cross-linked polyvinyl acetal which is characterized in that it can be obtained from at least one polyvinylacetal (1) which is obtained by reacting at least one polymer (A), which contains a) 1,0 to 99.9 wt. % structural units of formula (1), b.) 0 to 99.0 wt. % structural units of formula (2), c.) 0 to 70.0 wt. % structural formula (3), d.) 0.0001 to 30.0 wt. % structural units of formula (4) respectively in relation to the overall weight of the polymer (A), with at least one compound (B) of formula (5). Furthermore, the present invention relates to methods for the production of the polyvinyl acetal according to the invention as well as its use.

Abstract: This invention relates to a phytoprotein synthetic fiber and the method for the manufacture thereof. This synthetic fiber is composed of phytoprotein and polyvinyl alcohol, the phytoprotein comprising A parts of the two components, where A is equal to or greater than 5 parts and less than 23 parts, and the polyvinyl alcohol comprising B parts, where B is greater than 77 parts and equal to or less than 95 parts. The methods of manufacturing the synthetic fiber comprise a semi-finished product manufacturing process and a semi-finished product acetalization and finishing process.

Abstract: The present invention provides methods of making covalently crosslinked vinyl polymer hydrogels having advantageous physical properties, and covalently crosslinked vinyl polymer hydrogel compositions made by such methods, as well as articles of manufacture comprising such covalently crosslinked vinyl polymer hydrogel compositions. The physical properties of the produced hydrogels can be adjusted by varying controlled parameters such as the proportion of physical associations, the concentration of polymer and the amount of radiation applied. Such covalently crosslinked vinyl polymer hydrogels can be made translucent, preferably transparent, or opaque depending on the processing conditions. The stability of the physical properties of the produced vinyl polymer hydrogel can be enhanced by controlling the amount of covalent crosslinks.

Abstract: An activated, substantially water soluble poly(ethylene glycol) is provided having of a linear or branched poly(ethylene glycol) backbone and at least one terminus linked to the backbone through a hydrolytically stable linkage, wherein the terminus is branched and has proximal reactive groups. The free reactive groups are capable of reacting with active moieties in a biologically active agent such as a protein or peptide thus forming conjugates between the activated poly(ethylene glycol) and the biologically active agent.

Abstract: A composition comprising Polytrimethylene terephthalate (PTT) with a reduced emission of acrolein is obtained by contacting Polytrimethylene terephthalate (PTT) resin with an effective amount of a melt stable, organic stabilizing compound. Such PTT resin has an acrolein formation rate at 280° C. of less than 15 ppm/minute. Preferably the residual acrolein content of the PTT resin is less than 10 ppm. The additive organic stabilizing compounds are free from nitrogen atoms. Preferred additive compounds include polyfunctional alkohols, alcoholates, aromatic carboxylic acid anhydrides, carboxylic acids and salts of carboxylic acids. The additive compounds are added to the polymer in molten state and/or to the resin, which is then processed to fibers, filaments, non-wovens, films and/or mouldings.

Abstract: Polymeric reagents comprising a polymer attached, either directly or through one or more atoms to a ketone or a related functional group such as ketone hydrate, thione, monothiohydrate, dithiohydrate, hemiketal, monothiohemiketal, dithiohemiketal, ketal, or dithioketal are provided. The polymeric reagents are useful for, among other things, forming polymer-active agent conjugates. Related methods, compositions, preparations, and so forth are also provided.

Abstract: A dispersing agent suitable for suspension polymerization of vinyl compounds, comprising a polyvinyl alcohol resin containing carbonyl groups in its molecule and having a block character of remaining fatty acid ester groups of at least 0.5 and an absorbance of at least 0.1 measured at each of wavelengths of 215 nm, 280 nm and 320 nm with respect to a 0.1% by weight aqueous solution of the polyvinyl alcohol resin, wherein the ratio of absorbance at 320 nm to absorbance at 280 nm is at least 0.3. The dispersing agent has an excellent surface activity and can suppress foaming which may occur in the suspension polymerization of vinyl compounds.

Abstract: A polymeric membrane suitable for use in electrophoresis formed from a pre-polymer having a plurality of crosslinkable moieties and the crosslinkable moieties being crosslinked with a polyfunctional crosslinking agent.

Abstract: A process is disclosed for formation of a preformed stabilizer for use in formation of graft polyols. The preformed stabilizer has a reduced level of transesterification products and results in less reactor fouling. The preformed stabilizer is prepared in the presence of phosphorous compounds, which reduces the unwanted transesterification products.

Abstract: Ink-receiving print media products capable of producing high quality printed images which are light-fast, humid-fast, have low coalescence (graininess) levels, and are characterized by other beneficial attributes. The print media products have at least one ink-receiving layer supported by a substrate. The ink-receiving layer includes a binder blend designed to achieve the aforementioned goals, namely, gelatin, a poly(vinyl alcohol-polyethylene oxide) copolymer, and a poly((styrene)-(n-butyl acrylate)-(methyl methacrylate)-(2-(tert-butylamino) ethyl methacrylate)) copolymer. One or more optional pigments and/or additional binders can also be included within the ink-receiving layer. The ink-receiving layer may optionally be employed in combination with one or more additional material layers thereover or thereunder which can contain, for example, one or more pigments and/or binders.

Abstract: The invention provides a method for preparing a 1-benzotriazolylcarbonate ester of a water-soluble and non-peptidic polymer by reacting a terminal hydroxyl group of a water-soluble and non-peptidic polymer with di(1-benzotriazolyl)carbonate in the presence of an amine base and an organic solvent. The polymer backbone can be poly(ethylene glycol). The 1-benzotrialylcarbonate ester can then be reacted directly with a biologically active agent to form a biologically active polymer conjugate or reacted with an amino acid, such as lysine, to form an amino acid derivative.

Abstract: There is provided a composition for functioning as an effective additive for an epoxy resin that is a solid at room temperature and has a high storage stability, and a method thereof. The composition of the present invention is a basic silane coupling agent organic carboxylate composition obtained by first synthesizing an organic carboxylate of a basic silane coupling agent by reacting a basic silane coupling agent and an organic carboxylic acid, and subsequently heating and mixing the organic carboxylate of the basic silane coupling agent with a compound exhibiting a good affinity for the basic silane coupling agent or organic carboxylic acid and having a softening point or melting point of 40° C. or greater.

Abstract: A water soluble package comprises a polymeric film, the polymeric film comprising a polymeric backbone derived from a polymer which is water soluble, as defined herein, and one or more derivatising groups attached to the backbone, the derivatising group(s) being derived from a material having a ClogP of from 0.5 to 6 and/or being derived from a parent material comprising a C4 to C22 hydrocarbyl chain.

Abstract: An automatic laundry or dishwashing product in unit dose form comprising at least three distinct zones for delivering into at least three different stages in the washing cycle. The product provides improved cleaning, care and finishing benefits.

Abstract: A resin composition comprising 70 to 99.9% by weight of ethylene-vinyl alcohol copolymer (A) and 0.1 to 30% by weight of a thermoplastic resin (B) other than the ethylene-vinyl alcohol copolymer (A) is provided. In the resin composition, an ethylene content ETa (mol %) and a degree of saponification SDa (%) of the ethylene-vinyl alcohol copolymer (A) satisfy the following equations (1) and (2): 25?ETa?55??(1) 90?SDa<99, ??(2) and an oxygen absorption rate of the resin composition is 0.01 ml/m2·day or more.

Abstract: Biaxially oriented polyester films which have a polyester-containing base layer (B) which additionally comprises poly(m-xyleneadipamide) and has been provided on at least one side with an overlayer (A) which has been coated with a barrier layer (D), said barrier layer comprising polyvinyl alcohol and a copolymer of maleic acid and acrylic acid, feature improved optical properties such as high gloss and low opacity and very good barrier properties, in particular toward the passage of oxygen, and, as a consequence of their insensitivity toward moisture, are suitable as a packaging material for foods or other consumable items.

Abstract: Biaxially oriented polyester films which have a polyester-containing base layer (B) which additionally comprises poly(m-xyleneadipamide) and which is coated on at least one side with a barrier layer (D), the barrier layer comprising polyvinyl alcohol and a copolymer of maleic acid and acrylic acid, feature improved optical properties such as high gloss and low opacity, and very good barrier properties, in particular with respect to oxygen passage, and are also suitable as packaging materials for foods or other consumable items as a consequence of their insensitivity toward moisture.

Abstract: The invention relates to a rubber additive composition which contains at least one rubber additive (a), the at least one additive (a) being encased in coating material (b) accompanied by formation of microcapsules. The additive can in particular be sulphur or another vulcanization agent, a vulcanization accelerator and/or activator.

Abstract: A polyvinyl alcohol having hydrolyzed silyl group functionalized monomer units. The polyvinyl alcohol satisfies the following formulae (I) and (II) and the pH of an aqueous 4% solution of the polyvinyl alcohol is between 4 and 8: 20<P×S<370??(I) wherein P is the viscosity-average degree of polymerization of the polyvinyl alcohol, and S is the content of the silyl group functionalized monomer units in the polyvinyl alcohol, 0.1/100?(A?B)/(B)?50/100??(II) wherein A is the silicon atom content of the polyvinyl alcohol, B is the silicon atom content of the polyvinyl alcohol that has been washed with sodium hydroxide-containing methanol and then washed through Soxhlet extraction with methanol. The polyvinyl alcohol may be readily dissolved in water in the absence of sodium hydroxide or an acid; the aqueous solution has good viscosity stability; the binding force with inorganic substances is high; and a film formed of its mixture with an inorganic substance is excellent in resistance to water.

Abstract: It is an object of the invention to provide a polyvinyl acetal resin for lacquer and ink, which can suppress the occurrence of coloring and foul odor of the polyvinyl acetal resin itself even when no antioxidant is used at all therein, and a lacquer and ink composition which has excellent color and the high stability of viscosity in storing it for long periods. The invention provides a polyvinyl acetal resin for lacquer and ink synthesized by acetalization reactio of polyvinyl alcohol and an aldehyde, wherein a polymerization degree is 100 to 3,000, a proportion of a residual acetyl group is 25 mol % or less and a proportion of a residual hydroxyl group is 17 to 35 mol %; a content of the residual aldehyde is 100 ppm or less, a content of residual butyric acid is 100 ppm or less, a content of residual 2-ethyl-2-hexenal is 100 ppm, and a content of a residual acid catalyst is 300 ppm or less, and no antioxidant is remained at all therein.

Abstract: A curable coating composition which is based on a hydroxyl-functional binder and a blocked polyisocyanate, comprising a suspended finely divided, wax-coated polyamide. This composition exhibits a number of superior properties including having a greatly improved abrasion value.

Abstract: Disclosed is a process for esterifying and/or transesterifying a polymer having a polyethylenic backbone and pendant acid and/or ester moieties comprising contacting a melt of the polymer with a transesterifying compound so that the polymer undergoes esterification and/or transesterification but not alcoholysis. The esterified or transesterified polymer also has pendant ester moieties which differ in kind and/or number from the unreacted polymer. In one embodiment, the process also comprises adding an amount of a transition metal salt that is effective to promote oxygen scavenging. Also in a further embodiment, the process comprises irradiating the transesterified polymer with actinic radiation to reduce the induction period before oxygen scavenging commences. Also disclosed are compositions comprising a component which comprises an ethylenic or polyethylenic backbone and a pendant or terminal moiety comprising a benzylic, allylic, or ether-containing radical.

Abstract: A method for producing a saponified ethylene-vinyl acetate copolymer which comprises saponifying an ethylene-vinyl acetate copolymer in an alcohol-based solvent with an alkali catalyst, wherein an amount between 100 ppm and 15,000 ppm of water with respect to the ethylene-vinyl acetate copolymer is supplied into the alcohol-based solvent. According to this method, discoloration, etc. of a saponified ethylene-vinyl acetate copolymer is inhibited, and visual characteristics of the saponified copolymer are improved.

Abstract: A composition suitable for forming a primer layer on a polymer sheet comprising: a) polyethyleneimine; b) latex; wherein the latex has a Tg lower than 25° C. and c) a hydrophilic colloid material. A method of coating the composition is also disclosed.

Abstract: The invention comprises a linear or branched polymer derivative comprising a water soluble and non-peptidic polymer backbone that incorporates an optionally protected vicinal diol, which is either embedded in the polymer backbone or is attached as a pendant group, wherein each linking group (linker) between the polymer backbone and the vicinal diol is a chain comprising at least two adjacent saturated carbon atoms. The invention further comprises a method of using said polymer derivative to form an aldehyde and either a second aldehyde or a ketone by way of oxidative cleavage.

Abstract: A method for producing biodegradable plastic from natural materials containing polysaccharides and oligosaccharides by treating the polysaccharide-containing or oligosaccharide-containing materials with a basic aqueous solution, subsequently treating the mixture with a modifying material to create an anionic product, and then contacting the anionic product with proteins to produce the biodegradable plastic material. The process provides relatively inexpensive methods for preparing biodegradable plastics that are useful for manufacturing various articles and also to provide an environmental solution that will reduce the amount of natural wastes that could be practically utilized for the benefit of mankind.

Abstract: Crosslinking systems suitable for use in a polymer melt composition wherein the polymer melt composition comprises a hydroxyl polymer; polymeric structures made from such polymer melt compositions; and processes/methods related thereto are provided.

Abstract: Partially cross-linked polyvinyl alcohol is obtained by reaction of a polyvinyl alcohol with a polycarboxylic acid, in particular a hydroxypolycarboxylic acid. This partially cross-linked polyvinyl alcohol can be used to produce films which are readily water soluble or swellable. Owing to this property, such films are very useful as a packaging material for laundry detergents, cosmetics and the like in that the package will dissolve in water and liberate its contents or is suitable for release (permeation) of (active) chemical compounds.

Abstract: A material for use in fabricating three-dimensional objects includes a mixture of thermoplastic particles and a water-soluble polymer matrix formed as a film that is fusible into a non-water soluble state when exposed to heating. The film further includes a surfactant system bound to the thermoplastic particles, the surfactant system providing an inversion property such that the thermoplastic particles are hydrophilic but, upon a fusing of the film, become hydrophobic as the surfactant become incorporated into the bulk.

Abstract: The present invention relates to a thermoplastic resin composition comprising an ethylene-vinyl alcohol copolymer and a modified polyester type thermoplastic elastomer produced by modifying a polyester type thermoplastic elastomer with an unsaturated carboxylic acid or its derivative, and a multi-layer laminate comprising a layer A comprising the thermoplastic resin composition as defined in the above, and at least one layer B comprising a thermoplastic resin composition other than the composition as defined in the above.

Abstract: A method of improving ink stability. A block co-polymer is added to either an under-/overprinting vehicle or an ink vehicle. The polymer increases chemical interactions between the ink the print media. The under-/overprinting vehicle and the ink vehicle interact through electrostatic interactions while the polymer increases smearfastness by interacting with the print media through non-covalent interactions.

Abstract: Water-soluble films are prepared from polymer blends of polyvinyl alcohol and sulfonate polymers. The sulfo group can be acid form, SO3H, as well as salt form of potassium, sodium, ammonium, i.e. —SO3K, —SO3Na, and —SO3NH4. Conventional film-forming processes can be used to produce the films. Polymeric films prepared from the blend compositions have unique characteristics. Their water solubility rate can be controlled by varying the composition ratio of the polymer blend. Their water solubility rate is increased even at a temperature of 0° C. The water-soluble polymeric films can be used as packaging materials and immersion transfer printing film.

Abstract: Difference in retardation between two points separated by 1 cm along the TD direction of a polyvinyl alcohol polymer film 6 is 5 nm or less. The length of a surface for drying a polyvinyl alcohol polymer film 6 is 3 m to 200 m, and the water content of the polyvinyl alcohol polymer film 6 when peeled after passing through the drying surface is 50% by weight or less, in film formation.

Abstract: This invention relates to a quick method for preparation of photorcactive polymers and immobilization of biomolecules onto these polymers. Particularly, this invention relates to a microwave-mediated rapid and efficient method for the preparation of photoreactive polymer having at least one photoactivable functional group capable of forming a covalent bond with the biomolecule in a photochemical reaction. Any matrix either organic or inorganic having a nucleophilic group preferably, amino, hydroxyl or thiol group can be modified by the invented method. Immobilization of biomolecules onto the photoreactive polymers was carried out by UV radiation. The method has applications for inmmobilization of bio-molecules irrespective of their functional groups in the fields of molecular biology, proteomics, genomics, diagnostics, chemical or biochemical industry and other related fields.

Abstract: A polymeric composition based on PVA is claimed and is substantively composed of

Abstract: Polymeric acetal resins useful in lithographic printing are disclosed. The polymeric acetal resin contains units (A), (B), (C), (D), and (E). Unit (A) is a vinyl alcohol unit. Unit; (B) is a polyvinyl acetal unit containing an R group, where R is hydrogen, an aliphatic group, an aromatic group, or an arylaliphatic group. Unit (C) is a vinyl carboxylate unit. Unit (D) is an acidic vinyl acetal unit and/or a residue of an acidic vinyl monomer. Unit (E) is a free radical polymerization-inhibiting vinyl acetal unit and/or a free radical polymerization-inhibiting vinyl alcohol ester unit. The resin comprises about 10 to about 60 mol % of unit (A), about 5 to about 60 mol % of unit (B), about 0.3 to about 30 mol % of unit (C), about 1 to about 40 mol % of unit (D), and about 0.01 to about 2 mol % of unit (E).

Abstract: The invention provides use of a polymer composition comprising polyethylenimine and one or both of polyvinyl alcohol and polyvinyl alcohol co-ethylene for protection against harmful and/or noxious agents. The invention further provides a laminate suitable for providing protection against harmful and/or noxious agents, the laminate comprising a layer of a polymer composition comprising polyethylenimine and one or both of polyvinyl alcohol and polyvinyl alcohol co-ethylene is also disclosed.

Abstract: Disclosed is a process for preparation of final graft polyols via a continuous process. In, addition, a final graft polyol formed by the process is disclosed. The process includes the steps of reacting a plurality of ethylenically unsaturated monomers and a reaction moderator with a macromer having induced unsaturation in the presence of a carrier polyol, a free radical polymerization initiator, and a first graft polyol. The process provides for the preparation of a final graft polyol having a solids level of from 30 to 70% in a continuous process. The final graft polyol produced by the process has a lower viscosity over a range of solids levels, a reduced amount of very large irregularly shaped particles, a reduced viscosity change in response to a change in reaction temperature compared to a typical graft polyol, a reduced tendency to foul the continuous reactor, and a broader particle size distribution compared to an identical graft polyol prepared by a semi-batch process.

Abstract: Process for the preparation of protective colloid-stabilized aqueous dispersions.

Abstract: A resin composition comprises a copolymer (A) comprising ethylene as a major component produced with a single-site catalyst, and an ethylene-vinyl alcohol copolymer (B) having an ethylene content of 20-60 mol. % and a degree of hydrolysis of 95% or above, the resin composition satisfying the equation (1): 1/99≦{weight of (A)}/{weight of (B)}≦<99/1  (1) A preferred resin composition comprises a copolymer (A) which has a density of 0.90-0.94 g/cm3 and the resin composition further comprises a carboxylic acid-modified polyolefin (C) and satisfies the equations (2) and (3): 60/40≦{weight of (A)}/{(weight of (B)}≦: 99/1  (2) 0.1/99.9≦X≦: 20/80  (3) wherein X={weight of (C)}/{total weight of (A) and (B)}. Another preferred resin composition comprises a copolymer (A) which has a density of 0.85-0.

Abstract: An aqueous composition that includes (A) a butadiene polymer latex that is prepared by an emulsion polymerization in the presence of a styrene sulfonate stabilizer and (B) a phenolic resin. A preferred aqueous butadiene polymer latex is one that is prepared by emulsion polymerization of at least 60 weight percent dichlorobutadiene monomer (based on the amount of total monomers used to form the butadiene polymer), in the presence of a styrene sulfonate stabilizer.