摘要:
Disclosed are materials and processes for obtaining improved resistance to fire and flame for polymer composites, using a flame and fire retardant system comprising a tubular clay. Halloysite is an example of such a clay and it can be used either alone or in combination with other chemicals. The tubular clays are advantaged over common platy clays for this application in that they do not require large amounts of organic compatibilizers, which may degrade the properties of the composite or require tedious process steps. The tubular clay can function alone or synergistically with other flame retardants, particularly organic flame retardants.
摘要:
Disclosed are systems and methods for producing, and a composite including, a roasted aluminosilicate (e.g., halloysite). A uniform dispersion of an aluminosilicate can be obtained using roasted halloysite clay and subsequently combining it with a polymer in a melt mixing system to produce a composite.
摘要:
There are disclosed polymers, E-beam sensitive elements and resists obtained therefrom, that are more sensitive than 5.times.10.sup.-7 coulombs per cm.sup.2 when exposed to a 15 keV electron beam. The polymers are copolymers of either allyl or propargyl methacrylate and of an acrylate or methacrylate bearing an oxygen-containing heterocyclic ring.
摘要:
A thermal dye transfer assemblage comprising:(a) a dye-donor element comprising a support having thereon a dye layer comprising a dye dispersed in a polymeric binder, the dye being substituted with a reactive primary or secondary aliphatic amino group, and(b) a dye-receiving element comprising a support having thereon a dye image-receiving layer, the dye-receiving element being in a superposed relationship with the dye-donor element so that the dye layer is in contact with the dye image-receiving layer, the dye image-receiving layer comprising a polymer containing a pendant alkyl acrylamidoglycolate alkyl ether group.
摘要:
A copolyester is synthesized by reacting a dialkyl ester of an aromatic dicarboxylic acid (e.g., dimethyl terephthalate) with ethylene glycol, low molecular weight poly(ethylene glycol) and a salt of a sulfonic acid-substituted aromatic dicarboxylate (e.g., sodium sulfoisophthalic acid) simultaneously in a first stage reaction in the presence of a phosphite or phosphate stabilizer. The intermediate product of the first stage is further reacted in a second stage in the presence of a polycondensation catalyst to obtain a random copolyester of the desired molecular weight. The copolyester is extruded to form a film which, after orientation and heat setting, has excellent clarity and is useful as a photographic film support. Aqueous processing of the film relaxes any core set or curl.
摘要:
There are disclosed light-sensitive compounds and a composition comprising (a) such compounds and (b) a compound having at least one reactive site capable of stepwise photo-reaction with the light-sensitive compounds. The light-sensitive compounds have the structural formula, ##STR1## wherein Z.sup.1 and Z.sup.2 are each independently the number of non-metallic atoms necessary to complete 1, 2, 3, or 4 unsaturated carbocyclic or heterocyclic rings of from 6 to 18 nuclear atoms;Z.sup.3 is either a carbon-to-carbon bond or vinylene;and X is a linking group.The composition can be applied to a variety of supports and photoreacted by exposure to activating radiation.
摘要:
Disclosed is a novel polymeric nanoparticle adhesive composite including a nanoparticle filler and method for the production thereof. More particularly, the disclosure describes the use of nanoparticle fillers, including a novel halloysite nanoparticle filler which utilizes generally cylindrical or tubular nanoparticles (e.g. rolled scroll-like shape). The filler is effectively employed in a polymer nanoparticle adhesive composite, containing the halloysite nanoparticle or other equivalent naturally occurring nanotubular filler, in which the advantages of the nanoparticle filler are provided (e.g., reinforcement, flame retardant, etc.) while maintaining or improving mechanical performance of the adhesive composite (e.g., adhesive strength and tack)
摘要:
The present invention relates to an antistatic article comprising a substrate or support having thereon at least one antistatic layer, wherein the antistatic layer comprises a conductive material having areas of patterned coverage.
摘要:
A dye-receiving element for thermal dye transfer includes a support having on one side thereof a dye image-receiving layer. Receiving elements of the invention are characterized in that the dye image-receiving layer or an overcoat layer thereon comprises a polyester comprising recurring dibasic acid derived units and diol derived units, at least 50 mole % of the dibasic acid derived units comprising dicarboxylic acid derived units containing an alicyclic ring within two carbon atoms of each carboxyl group of the corresponding dicarboxylic acid, and at least 30 mole % of the diol derived units containing an aromatic ring not immediately adjacent to each hydroxyl group of the corresponding diol or an alicyclic ring.
摘要:
A dye-receiving element for thermal dye transfer includes a support having on one side thereof a dye image-receiving layer. Receiving elements of the invention are characterized in that the dye image-receiving layer comprises a water dispersible polyester comprising recurring dibasic acid derived units and diol derived units, at least 50 mole % of the dibasic acid derived units comprising dicarboxylic acid derived units containing an alicyclic ring within two carbon atoms of each carboxyl group of the corresponding dicarboxylic acid, and at least 2.5 mole % of the dibasic acid derived units and diol derived units combined comprising ionic monomer derived units containing an ionic group.