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6337369 |
Polarizing film
The present invention provides a polarizing film having a dichroic ratio of at least 20 and comprising a polyvinyl alcohol derivative with a polyvinylene structure as obtained from a polyvinyl...
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6337370 |
Inorganic-organic copolymer using polyvinylalcohol-silane coupling agent and preparation method thereof
Disclosed are inorganic-organic copolymers and their preparation using polyvinylalcohol-silane coupling agents. The inorganic-organic copolymers can be prepared through the reaction of...
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6331587 |
Polyvinyl ester dispersions and methods for their preparation
Polyvinyl ester dispersions which can be employed as binders in building materials, preferably in the form of redispersible plastics powders, are obtained by polymerization of at least one vinyl...
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6309999 |
Process for the preparation of an immunoadsorbent matrix
A process for the preparation of an immunoadsorbent matrix includes preparing polyvinyl alcohol beads by partially crosslinking polyvinyl alcohol (PVA) with a crosslinking agent to provide...
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6303687 |
Crosslinked polymers containing salt structures
The invention relates to a process for the production of moldings, in particular contact lenses, in which a water-soluble crosslinkable polymer is crosslinked in solution, and to moldings, in...
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6271307 |
Use of polyalkylkene oxide-containing graft copolymers as solubilizers
The use of graft copolymers obtainable by grafting a) polyalkylene oxides with b) at least one monomer selected from the group of b 1 ) C 1 -C 30 -alkyl esters of monoethylenically...
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6270938 |
Acetal copolymers and use thereof in photosensitive compositions
The present invention relates to particular acetal copolymers and radiation-sensitive compositions comprising said copolymers and, inter alia, are excellently suitable for the production of...
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6265509 |
Crosslinked polymers
The invention relates to a novel process for the production of mouldings, in particular contact lenses, in which a soluble prepolymer comprising units containing a crosslinkable group and at least...
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6255033 |
Positive acting photoresist compositions and imageable element
A positive acting, heat-sensitive composition is presented, either coated on a lithographic base, or on a printing circuit board base, and comprises a water insoluble heat-sensitive resin, a novel...
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6255444 |
Aromatic ester (meth)acrylate dendrimers and curable resin composition
This invention relates to an aromatic ester (meth)acrylate dendrimer composed of the core formed by an aromatic polycarboxylic acid and the branches formed by an aromatic compound containing one...
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6238833 |
Binder resin with reduced hydroxyl content
A composition including: a polymeric compound including a polyvinyl butyral moiety, an optional polyvinyl alcohol moiety, an optional polyvinyl acetate moiety, and a modified polyvinyl moiety of...
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6235836 |
Vinyl 4-t-butoxycarbonyloxbenzal-vinyl alcohol-vinylacetate copolymer and preparation method thereof
There is a vinyl 4-hydroxybenzal-vinylalcohol-vinyl acetate copolymer, a 4-t-butoxycarbonyloxybenzal-vinyl alcohol-vinyl acetate copolymer and a vinyl 4-t-butoxycarbonyloxybenzal-vinyl...
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6214933 |
Inverse phase blends and films of poly(ethylene oxide) and polyolefin
A composition comprises a polyolefin, such as polyethylene, as a major constituent and poly(ethylene oxide) as a minor constituent. The composition exhibits an inverse phase morphology so that the...
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6211289 |
Modified polyvinylacetals with low solution viscosity
Modified polyvinyl acetals are prepared by saponification of 1-alkylvinyl acetate-vinyl acetate copolymers, which contain 1-alkylvinyl acetate/vinyl acetate in a weight ratio of 1/99-40/60 and...
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6207751 |
Semicarbazide derivative and a coating composition containing the same
Disclosed is a semicarbazide derivative represented by formula (1) or a terminal-blocked form thereof: ##STR1## wherein R 1 represents a terminal isocyanate group-free polyisocyanate residue or a...
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6200720 |
Graft resin, process for the production thereof and use thereof
A graft resin having a structure of the formula (1) and having a number average molecular weight of 2,000 to 50,000, ##STR1## has excellent low-temperature moldability and exhibits an excellent...
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6184288 |
Hydrous pellets of ethylene-vinyl acetate copolymer hydrolyzate, production thereof and moldings from such hydrous pellets
The hydrous ethylene-vinyl acetate copolymer hydrolyzate (EVOH) pellets of the present invention are characterized in that they are hydrous pellets of an ethylene-vinyl acetate copolymer...
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6180689 |
Fluid loss control agents and compositions for cementing oil wells comprising said fluid loss control agent
The present invention concerns a fluid loss control agent for a petroleum industry (or analogous) cement slurry, comprising a surfactant and a micro-gel obtained by chemical cross-linking of a...
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6166117 |
Water-soluble film
A water-soluble film, comprising 100 parts by weight of (A) a sulfonic acid group modified polyvinyl alcohol and 0.05-20 parts by weight of (B) gallic acid, salts thereof or a C 1 -5 alkyl ester...
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6162864 |
Polyvinyl alcohol
A polyvinyl alcohol is provided containing structural units of the following formula (I) at a molar fraction of 0.05-0.50 and the structural units of the following formula (II) at a molar fraction...
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6150460 |
Curable compositions containing novel polyfunctional crosslinking agents
Novel polyfunctional glyoxylated compounds and compositions containing the same are disclosed which are particularly suitable for use as crosslinking components in curable compositions and also...
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6140018 |
Photosensitive resin and composition thereof derived from saponified poly(vinyl acetate) and pattern formation method
The invention provides a photosensitive resin and a photosensitive resin composition having excellent water resistance after hardening, excellent developability, and excellent patterning...
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6136486 |
Cross-linked polyvinyl butyral binder for organic photoconductor
The invention is a self-cross-linked polyvinyl butyral (PVB) binder for organic photoconductors (OPC's) used in electrophotography. The no cross-linked form of the binder is available from Monsanto...
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6124398 |
Carbodiimide crosslinking agent, process for preparing the same, and coating material comprising the same
A carbodiimide crosslinking agent comprises, as its main component, a decarbonated condensate of (A) one or more isocyanates selected from isocyanates having at least two isocyanate groups bonded...
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6121349 |
Aqueous polyvinyl acetal dispersions
Aqueous dispersions of carboxyl-containing polyvinyl acetals which contain no emulsifiers, no readily volatile organic solvents and no nonvolatile plasticizers, preparable by a) reacting...
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6114467 |
Semifluorinated acid halides and fluorinated polymers produced therefrom
Compounds having the formula F(CF 2 ) q --(CH 2 ) p -1 --COX' wherein q ranges from 6-15, p ranges from 3-15 and X' is halogen are useful as reactants for hydroxylated block copolymers or...
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6107401 |
Process for producing amine functional derivatives of poly (vinyl alcohol)
This invention relates to a process for producing an aminoalkylal derivative of polymer containing a plurality of polymerized vinyl alcohol units which are vicinal, preferably a process for...
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6103823 |
Three stages process for the preparation of solid thermoplastic compositions based on polyvinyl alcohol and moldable and extrudable compositions obtained accordingly
A three stages process for the preparation of solid thermoplastic compositions based on polyvinyl alcohol comprising the mixing in a mixer of a first charge, comprising the polyvinyl alcohol and...
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6099621 |
Membranes comprising aminoacid salts in polyamine polymers and blends
The present invention is directed toward a composition comprising a polyamine or its polymer blend and at least one salt of an aminoacid, the salt of the aminoacid being present in an amount...
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6096826 |
Piperidone functionalized poly(vinyl alcohol)
A family of piperidone functionalized polymers based on polymers containing a plurality of hydroxyl groups. Piperidone or piperidone derivatives form a cyclic ketal linkage with hydroxyl groups...
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6087066 |
Polyvinyl acetals having imido groups and use thereof in photosensitive compositions
This invention relates to polyvinyl acetals containing the units A, B, C and D, wherein A is present in an amount of 0.5 to 20 wt.-% and is of the formula ##STR1## B is present in an amount of 15...
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6080814 |
Polyvinyl alcohol purification process
A poly(vinyl alcohol) purification process is described, which includes heat treating a poly(vinyl alcohol) under agitation in an atmosphere unsaturated by water and with a water vapor mass content...
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6046272 |
Non yellowing, thermally stable polyvinyl alcohol
A process for making a thermally stable and substantially low yellow polyvinyl alcohol, and a process for reversing discoloration of polyvinyl alcohol. The process consists of treating polyvinyl...
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6046257 |
Composition for prepreg comprising epoxy resin, polyamide block copolymer and curing agent
A composition is useful as a prepreg containing reinforcing fibers comprises an epoxy resin, a thermoplastic elastomer of a polyamide and/or polyester block copolymer, a curing agent such as...
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6033806 |
Method of producing a cross-linked polyvinyl alcohol separator for an alkali-zinc secondary battery
A method for producing a cross-linked polyvinyl alcohol separator having a film of cross-linked polyvinyl alcohol for an alkali-zinc secondary battery, and a cross-linked polyvinyl alcohol...
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5994449 |
Resin compositions for making wet and dry strength paper and their use as creping adhesives
Disclosed are resin compositions that are the reaction product of epihalohydrin with a mixture of polyaminoamide and vinyl amine polymer containing a minimum of about 1 mole % vinyl amine monomer...
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5994033 |
Screen printing stencil
A screen printing stencil made from a composition comprising polyhydroxy compounds having a plurality of 1,2- or 1,3-diol groups along a polymer backbone, the diol groups grafted thereto a compound...
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5994008 |
Composition for forming fluorescent film for display and method of forming fluorescent film for display
The present invention relates to a composition for forming a fluorescent film for a display and a method of forming a fluorescent film for forming a display surface of a display unit. The...
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5990238 |
Release coating for adhesive articles and method
A polymer includes an ethylene-containing backbone having substituents attached thereto, wherein the substituents include a urethane linked nitrogen-bonded hydrocarbon side chain having about 5...
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5985996 |
Acetal polymers and use thereof in photosensitive compositions and lithographic printing plates
This invention relates to a binder containing the units A, B, C, D and E, wherein A is present in an amount of 10 to 60 mole % and is of the formula ##STR1## B is present in an amount of 1 to 30...
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5985117 |
Ion-selective membrane sensors with mercuracarborand ionophore
Ion-selective membranes are disclosed which are suitable for use in ion-selective sensors. The membranes include a mercuracarborand ionophore. Exemplary ion-selective membranes include...
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5981645 |
Crosslinkable creping adhesives
A creping adhesive is described which provides the ability to readily control glass transition temperature (Tg) and adhesion and which can be easily removed from dryer surfaces. The creping...
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5972375 |
Polyvinyl alcohol compositions prepared by crosslinking in a freezing step
The invention provides a translucent, water-insoluble hydrogel composition and methods of making it. The hydrogel composition comprises a polyvinyl alcohol polymer and a complexing agent which are...
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5955538 |
Process for the manufacture of ethylene/vinyl acetate/vinyl alcohol terpolymer
A process for the manufacture of ethylene/vinyl acetate/vinyl alcohol terpolyrners of improved color. The process comprises reacting ethylene/vinyl acetate copolymer with a hydroxyl-containing...
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5922808 |
PVA-base thermoplastic copolymer, and its production process and use
A PVA-base copolymer is obtained by subjecting a lactone, whose ring is formed of 3 to 10 carbon atoms, to ring-opening polymerization in the presence of polyvinyl alcohol (PVA). The copolymer...
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5914368 |
Vinyl alcohol copolymers and water-soluble films containing them
The description relates to vinyl alcohol copolymers which can be produced by the acid-catalysed acetalisation reaction of polyvinyl alcohols with a degree of saponification of 80-99.5 mol % and...
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5914369 |
Process for the preparation of polyvinyl alcohol
The reaction of polyvinyl acetate in methanolic solution with methanolic sodium hydroxide at a temperature between 10° C. and 65° C. with stirring at a stirring speed of from 5 to 200 rpm with a...
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5908877 |
Water-dispersible powder composition for water-resistant coatings
A water dispersible powder composition is provided. The powder composition contains at least one film-forming polymer having at least one functional group and at least one reactive component that...
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5907017 |
Semifluorinated side chain-containing polymers
Fluorinated polymers for use per se or in a blend with compatible homopolymer or copolymer which is not fluorinated, for providing a low surface energy (anti-stick, non-wetting, low friction)...
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5900463 |
Water resistant composition
A composition comprising (A) polyvinyl alcohol having an amino group connected to a phenyl group and (B) at least one water resistance-imparting agent selected from polyepoxy compound, aldehyde...
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