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7217642 |
A mask for forming polysilicon has a first slit region where a plurality of horizontal slit patterns are arranged in the vertical direction while bearing the same width, a second slit region where a plurality of horizontal slit patterns ...
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6123769 |
A method which can control crystallization of a biopolymer such as protein is provided. A silicon crystal (15) whose valence electrons are controlled to be capable of controlling the concentration of holes or electrons of the surface par...
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4737232 |
Process for depositing and crystallizing a thin layer of organic material by means of a beam of energy. A compact block formed of organic material is disposed adjacent one of the faces of the substrate, the block is subjected through the...
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4666456 |
Process for continuous crystallization of a liquid mixture in which the mixture is led through a cascade of cooling sections. The temperature in the first section is such that a part of the mixture crystallizes, the temperature in each s...
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4597768 |
A method for treating in counter current of suspended particles with a liquid, whereby the particles and the liquid are transferred in opposite directions through a contact zone which, at some places, spaced in axial direction, is stirre...
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4548978 |
Fast crystallizing polyester molding composition comprising (a) a PET or PET/PBT matrix resin having an inherent viscosity of at least 0.4, (b) polyalkylene oxide soft segments incorporated into the matrix resin, (c) a plasticizer of the...
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4540729 |
A moulding composition comprises a polyethylene terephthalate with a nucleant, polycaprolactone of molecular weight above 10,000 and an epoxidized unsaturated triglyceride. The amount of epoxidized triglyceride is preferably not more tha...
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4539352 |
Improved injection moldability of polyethylene terephthalates is achieved by the addition of an epoxidized plasticizer and a nucleating agent cooperative with the epoxidized plasticizer to achieve the improved moldability even when the c...
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4444931 |
Nucleating agents have been discovered which enable molded articles to be prepared with smooth glossy surfaces from blends of polyethylene terephthalate and polybutylene terephthalate in the "wet state", i.e., without the resin having be...
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4230888 |
Pure acrylic acid may be obtained from an aqueous solution containing acrylic acid by fractional crystallization wherein a salt is added to the aqueous solution that eliminates the eutectic point between acrylic acid and water.
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4215032 |
The present application provides a polyester composition composed of polyethylene terephthalate or a polyester containing at least 80 mol % of ethylene terephthalate repeating units and 0.1 to 15 weight %, based on the polyester, of an o...
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4212791 |
Compositions comprising poly(alkylene terephthalate), an inert particulate nucleating agent, an oligomeric polyester crystallization promoter, and a segmented thermoplastic copolyester-ether elastomer are disclosed as having improved cry...
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4207230 |
The current invention is concerned with block copolyesters of low glass transition temperature segments and ethylene glycol based polyester segments linked together by carboxylic acid ester groups and special diols, and a process for pre...
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4189422 |
Thermoplastic polyester composition containing 2-70% by weight of inorganic fillers and calcium oxide or strontium oxide for improving the melt viscosity stability of the polyester composition under melt conditions.
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4184026 |
An inexpensive yet reliable method for incorporating a minor fraction of a percent by weight of nucleating agent in a propylene polymer is provided in which the nucleating agent is dissolved at a concentration of less than 10% in a homog...
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4163100 |
The present invention is concerned with polyalkylene terephthalate molding compositions which have improved crystallization behavior as a result of blending with selected sulphonic acid esters. The addition of an effective amount of thes...
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4139518 |
Disclosed is a composition, comprising a calcium-containing polyethylene terephthalate polymer and from about 0.01 to 1% by weight of silica obtained by a pyrogenic process, as well as a method of producing same and improved shaped artic...
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4138386 |
Polyester film for magnetic tape including discrete polyester particles containing lithium, calcium and phosphorus, said particles having an average size in the range from 0.1 to 3.0 μm and inert pigments having an average size of 1.0 t...
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4115333 |
Reinforced thermoplastic compositions are provided comprising a poly(1,4-butylene terephthalate) resin, a resin selected from a poly(ethylene terephthalate) resin, a polycarbonate resin or a mixture thereof, a fibrous glass reinforcement...
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4097446 |
Intercrystalline normally rigid thermoplastic compositions comprising a combination of (a) very rapidly crystallizable polyester, (b) a crystalline or amorphous polymer and (c) a reinforcing filler for the combination. There are also pro...
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4096109 |
A polyester film is disclosed which comprises (a) a polyester mainly consisting of polyethylene terephthalate which includes first inert particles being precipitated in the polyester-forming reaction system and having an average particle...
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4092289 |
Polyester compositions suitable for the production of oriented films contain filler agglomerates of mixtures of primary inert particles having opposite electrical charges in polar media, preferably pyrogenic alumina and pyrogenic silica....
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4082804 |
A process for preparing 2-amino-1-butanol by reacting L-tartarate of 2-amino-1-butanol with an aqueous slurry alkaline earth metal compound in such a way that some L-tartarate of 2-amino-1-butanol remains in the reaction system throughou...
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4082715 |
A moulding composition which comprises a polycarbonate polymer, a plasticizer for said polymer, and a finely divided nucleating agent selected from the group consisting of metal salts of polymers carrying lateral carboxylic groups.
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3966845 |
Polyolefins which have been modified by being graft polymerized with from about 1 to 15 weight percent of an acrylic acid or derivative thereof are outstanding nucleating agents when added to unmodified polyolefins in concentrations of a...
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3966671 |
Glass-filled compositions containing saturated thermoplastic polyesters and aliphatic carboxyl-containing materials of low molecular weight having shear-dependent melt viscosity characteristics.
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3965064 |
The invention concerns a process for crystallizing a polycarbonate polymer which consists in incorporating to said polycarbonate polymer a finely divided nucleating agent and/or a plasticizer for said polycarbonate polymer, and crystalli...
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3956229 |
This invention provides a film or sheet capable of being thermoformed into a shaped article and being formed from a blend of about 60 to 85 parts by weight of a polyethylene terephthalate polymer having an intrinsic viscosity of at least...
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3953394 |
Thermoplastic, stable, blended compositions comprising a combination of (a) a poly(ethylene terephthalate) resin and (b) a poly(1,4-butylene terephthalate) resin. The alloyed combination of resins can be reinforced with fillers and also ...
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3951905 |
Fiber- and film-forming composition comprising a linear synthetic polyester together with antimony-containing particles, present in an amount of from 0.02 to 1.0% by weight of the composition. The content of elemental antimony in the ant...
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3903059 |
Nucleation of polyolefins is enhanced by the presence of a polyolefin having an alkali metal sulfonate and chlorine group separately attached thereto and containing an alkali metal hydroxide, preferably sodium hydroxide dispersed in the ...
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3889039 |
Additions of small amounts of fine particle size specialized monoclinic inorganic crystals to otherwise relatively pure polyalkylene terephthalate molding compounds increases the rate and extent of crystallization and the specific gravit...
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3876608 |
Polymeric film having incorporated therein quantities of inert filler having substantially uniform particle size and an average particle size of at least 2 microns, the film being characterized by improved winding and optical properties.
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3783145 |
The invention relates to thermoplastic molding compositions on the basis of polyoxymethylenes containing antimony trioxide as a nucleating agent. The compositions may be used to produce shaped articles with improved properties.
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3718623 |
Heat-curable plasticized mixtures for the manufacture of moulding materials based on polyurethanes, containing (a) a polyisocyanate, for example 3,5,5-trimethyl-3-(isocyanato-methyl)-cyclohexane-isocyanate
-(1) ["isophoronediisocyanate"]...
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3674746 |
Manufacture of high molecular, crosslinked crystalline polyadducts possessing urethane groups, from (a) linear succinic acid butane-1,4-diol polyesters possessing terminal hydroxyl groups and having an average molecular size of about 750...
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3673139 |
Process for the production of injection moulded and extrusion moulded polyesters from diols and dicarboxylic acids of which at least 85 mol. percent consists of terephthalic acid, which process consists of condensing in the polyester 0.0...
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3396128 |
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3327021 |
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3326880 |
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3318976 |
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3299176 |
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3226454 |
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3226351 |
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3213160 |
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3207737 |
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3135705 |
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3821156 |
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3819595 |
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3812077 |
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