Abstract: The present invention is concerned with a thermal delayed tack composition which is non-adhesive at ordinary temperatures but can be activated and tackified when heated and can maintain its tackiness for a long period of time even after separated from a heat source, and thermal delayed tack sheets prepared by coating basic sheets with this thermal delayed tack composition and then drying the same. The thermal delayed tack sheets have the features that even when they are wound into a roll or superimposed upon each other, no blocking or sticking occurs, and that the tackiness thereof can be maintained for a long period of time even upon a plastic material such as for example polyethylene having low polarity.

Abstract: A pressure sensitive adhesive sheet comprising a substrate and an adhesive composition which is coated on the surface of the substrate. The main components of the adhesive composition are (a) a copolymer comprising monomeric units of an acrylic ester, (b) monomeric units of a polar acrylic compound, (c) monomeric units of a high glass transition temperature (Tg) macromonomer having a Tg of 20.degree. C. or above, (d) monomeric units of a low Tg macromonomer having a Tg of below 20.degree. C. and (e) monomeric units of an oligomer having telechelic thiol functional groups. The pressure sensitive adhesive sheet has excellent adhesive strength, resistance against formation of blisters and removability upon heating.

Abstract: A pressure-sensitive laminate composition is described which enables the easy detection of improperly die-cut patterns which has a backing material, a silicone release coating, a non-migratory colorant dispersed in the silicone, a pressure-sensitive adhesive, and a face stock. Alternatively, a release liner composition is described having a non-migratory silicone coating on a backing material. One colorant used is carbon black. The carbon black is dispersed in the release layer either in a solvent-free system, or in an organic medium, which is preferably a mixed organic solvent, in which at least one of the solvents used is at least partially polar.

Abstract: Novel finger-tearable industrial tapes comprising:(1) a lightweight nonwoven synthetic cloth;(2) a polymeric backing layer from about 3 to about 5 mils thick bonded to one surface of said cloth with additional amounts of said polymeric backing material at least partially filling the voids or interstices within said cloth, at least the free outer surface of said backing layer comprising a polyolefinic material; and (3) a layer of a pressure-sensitive adhesive material at least 1.0 mils thick bonded to the opposed surface of said cloth with a portion of the adhesive material on the inner surface of the adhesive layer laminated to the polymeric material of said backing layer within the interstices of said cloth, thereby forming a unitary laminar structure in which the nonwoven cloth is characterized as being sandwiched between the respective polymeric backing layer and adhesive layer materials.

Abstract: A circuit for removing electrostatic charges from the surface of a cathode ray tube is formed by adding electrically conductive particles to an adhesive used to prevent an implosion of the tube and located between a metal clamping band and the surface of the tube. The electrically conductive particles have a particular particle size distribution and are dispersed in a particular amount.

Abstract: A composite sheet of a polymeric film form base liner, a cured release coating laminated to at least one side of the base liner, and a coating of at least one high surface energy material (a surfactant/emulsifier) on at least one surface of the base liner.

Abstract: A coating zinc material for inhibiting pathogenic and saprophitic microorganisms on indoor surfaces of locations of medical and similar facilities.

Abstract: A refractory for use in firing ceramics has a ceramic coating applied by plasma spraying onto the surface of a heat-resistant lightweight shaped article containing heat-resistant lightweight shaped article containing heat-resistant inorganic fibers. The shaped article is composed of highly aluminous short fibers not longer than 2,000 .mu.m or a mixture thereof with an aluminous refractory powder as bound to each other by means of aluminous binder, the shaped article not containing free silica.

Abstract: A molded casting from mineral wool, obtained notably through vacuum casting, displaying specific properties resulting from the addition of solid particles and in which mineral fibers are stabilized by a binder is disclosed. The solid particles are incrusted among the mineral fibers in the form of islets and have a particle measurement on the average below or equal to 4 microns.

Abstract: A reusable tape for effectively securing hockey equipment against shifting of the equipment during play. The tape is designed to be wrapped over the equipment and around the leg in precisely the same manner as is disposable adhesive athletic tape when used for this purpose. The tape is further designed to enable it to be measured and cut to particular lengths, so that it duplicates the precise functioning of whatever particular lengths of adhesive athletic tape is normally preferred by each player.The tape consists of an elongated, rectangular strip of vinyl from 30" in length to 240", in widths of 1" to 11/2", in different solid colors to match team uniforms, including white, black, and clear.

Abstract: A monofilament of oriented thermoplastic polymer having an oblong cross-section defining a width-to-thickness ratio for the monofilament greater than about 2.0 and a modification ratio not less than 4.4, a denier greater than about 1000, a tenacity of greater than about 7.5 g/d, and a modulus greater than about 45 g/d.

Abstract: Electrically conductive elements on two substrates can be electrically interconnected by an adhesive tape containing electrically conductive particles, most of which are substantially uniformly spaced from their six nearest neighbors. Preferably the particles are spherical and of substantially equal diameter slightly exceeding the thickness of the adhesive layer. The adhesive tape can be made by forming a dense monolayer of the particles, covering a stretchable adhesive layer with that dense monolayer, biaxially stretching the adhesive layer to separate each particle from other particles of the monolayer, and then embedding the particles either into that adhesive layer or into the adhesive layer of another tape.

Abstract: Light-stable film-forming salts of a sulfonated polymer, especially a sulfonated polyester, and a cationic dye. When these dye-polysalts are coated onto shaped polymeric structures, especially transparent self-supporting films, the resultant products have important optical uses. A polyester film coated with certain red or amber blends of dye-polysalts and provided with a pressure-sensitive adhesive coating is useful as a lithographers' tape.

Abstract: A drying cloth for transportation receptacles is disclosed, which cloth is composed of multilayer sheet material, the two outer sides of which are, in each case, formed by an absorbent layer. An intermediate layer which is impermeable to moisture is arranged between the absorbent layers. The two absorbent layers and the impermeable intermediate layer are permanently interconnected to form a composite material.

Abstract: High tensile and torque strength threads are provided on a thermoplastic composite rod by first cutting a thread at a relatively short pitch into an end of the rod. Thermoplastic composite tape is then wound in tight conformance to the cut thread so that the fibers of the tape align with the desired helix angle of the thread to be created. The rod and the tape are heated at their junction to above melt temperatures during the winding process to increase adhesion between the rod and the tape. While the end of the rod and the wound tape are at above melt temperatures, the end of the rod and the tape are compressed in a die conforming to the desired ultimate configuration of the thread. The tape and rod are then permitted to cool until sufficiently hardened to permit release of the compressing die without deformation of the threaded end of the tape. The result is a thermoplastic composite rod having high tensile and torque strength at its threaded end.

Abstract: Command-cure compositions especially for use in insulated window assemblies permit the composition to be rendered adhesively bonding at a selected time interval after formation of the assembly to firmly bond opposed surfaces of the assembly; a particular adhesive in strip or tape form comprises an adhesive polymer composition which is transparent to curing radiation especially UV, and curable in the presence of the radiation; the curing is inhibited by oxygen; the composition is solvent free and cures to a mass resistant to water; surfaces of the adhesive exposed to oxygen remain tacky and uncured; the adhesive is especially useful in window structures in which adhesion of the tacky surface excludes the cure-inhibiting oxygen and the tacky surface can be cured by UV radiation passing through the window glass.

Abstract: The pressure-sensitive adhesive sheet of the invention is free from the troubles of forming blisters due to the gas emission from the substrate surface to which the adhesive sheet is applied and bonded by using a unique pressure-sensitive adhesive to form the adhesive layer on a base sheet. The principal ingredient of the pressure-sensitive adhesive used in the present invention is a copolymer having a specified molecular weight and a specified glass transition temperature and composed of (a) from 50 to 85% by weight of a first monomeric moiety of an acrylic ester, e.g., 2-ethylhexyl acrylate, (b) from 1 to 30% by weight of a second monomeric moiety of an acrylic compound having a polar group, e.g., acrylic acid, and (c) from 5 to 40% by weight of a third monomeric moiety of a macromonomer having a polymeric molecular chain of styrene units and/or methyl methacrylate units and having a polymerizable functional group, e.g., methacryloyl group, at the molecular chain end.

Abstract: The present invention provides a composite elastic necked-bonded material including at least one necked material joined to at least one elastic sheet. The composite elastic necked-bonded material is stretchable in a direction generally parallel to the direction of constriction or necking of the necked material. Also disclosed is a method of producing a composite elastic necked-bonded material by necking a neckable material and then joining the necked material to an elastic sheet.

Abstract: Novel methods for preparing masking tapes by coating a thin layer of a polyolefinic material onto a lightweight nonwoven cloth and then applying a layer of adhesive, preferably a hot melt adhesive onto the opposed surface of the nonwoven cloth; and novel masking tapes prepared thereby.In the preferred embodiments, the polyolefinic layer consists essentially of a thin stratum of a high density polyethylene and a thin layer of low density polyethylene.

Abstract: A transfer tape for masking correction comprising a film-like foundation and a pressure-transferable masking layer containing a coloring pigment provided on the foundation, said pressure-transferable masking layer comprising a hiding layer comprising a coloring pigment and a vehicle, and a pressure-sensitive adhesive layer provided on the surface of the hiding layer, said vehicle of said hiding layer having an elongation at break of not less than 3.5.times.10.sup.2 %, said hiding layer having a porous structure with a porosity of 30 to 50% and having a tensile strength of not more than 1.7.times.10.sup.2 g/mm.sup.2. Masking operation using the transfer tape can be conducted with ease, erroneous images on a paper can be completely hidden and clear images can be formed on the masked portion.