Abstract: A coated decorative refractive particle contains a transparent coating and either reflective particles or refractive particles embedded in the coating. Also an engineered stone contains such coated decorative particles.

Abstract: A coated particle having a shimmering appearance to an observer contains a refractive particle, a transparent coating on the refractive particle, reflective particles and refractive particles embedded in the coating, with one of the reflective particles or the reflective particles primarily at a surface of the coating. Also an engineered stone has a shimmering appearance due to incorporation of coated particles.

Abstract: Heat exchanger structures for conducting fluid are provided in the form of multiple spaced-apart polymeric tubes embedded in foil laminate which includes metal and at least one polymer. Useful polymers are polyolefins, polyesters and polyamides. The metal provides barrier protection making the structure suitable for refrigeration uses as well as providing an extended heat transfer surface between the tubes for when the elements are used for heat transfer, and the polymer on the foil permits it to be sealed closely around the tubes to improve heat transfer. The tubes are of a geometry which provides burst strength, so that the metal can be quite thin.

Abstract: The present invention relates to a plastic tube heat exchanger suitable for refrigerant use is provided by wrapping a layer of tubes around a curved surface, on a base which is generally perpendicular to the surface. Several to many tubes can be in each layer. Then, further layers can be wrapped continuously by overlaying the first layer. Heat exchangers, including refrigerant apparatus, condensers and evaporators, can be made in this configuration. Processes and articles of manufacture are parts of the invention.

Abstract: Heat exchanger structures for conducting fluid are provided in the form of multiple spaced-apart polymeric tubes embedded in foil laminate which includes metal and at least one polymer. Useful polymers are polyolefins, polyesters and polyamides. The metal provides barrier protection making the structure suitable for refrigeration uses as well as providing an extended heat transfer surface between the tubes for when the elements are used for heat transfer, and the polymer on the foil permits it to be sealed closely around the tubes to improve heat transfer. The tubes are of a geometry which provides burst strength, so that the metal can be quite thin.

Abstract: The present invention relates to a plastic tube heat exchanger suitable for refrigerant use is provided by wrapping a layer of tubes around a curved surface, on a base which is generally perpendicular to the surface. Several to many tubes can be in each layer. Then, further layers can be wrapped continuously by overlaying the first layer. Heat exchangers, including refrigerant apparatus, condensers and evaporators, can be made in this configuration. Processes and articles of manufacture are parts of the invention.

Abstract: A method for making fluid handling structures, made by positioning multiple polymeric tubes spaced apart by at least 1½ tube diameters measured center-to-center on a sheet of foil made of metal, with plastic on at least the side facing the tubes, adding another such foil to bond on the other side thereof, and heating the resulting assembly, either before or after adding the second layer of foil, to bond it into a structure with spaced apart tubes encapsulated in foil on both sides.

Abstract: A method for making fluid handling structures by arranging and positioning polymeric tubes spaced on a sheet of foil made of metal, with plastic on at least the side facing the tubes, adding another such foil to bond on the other side of the tubes, and heating the resulting assembly, either before or after adding the second layer of foil, to bond it into a structure with spaced apart tubes encapsulated in foil on both sides.

Abstract: Plastic tube fluid handling means provided in the form of one or more polymeric tubes embedded in foil laminate which includes metal and at least one polymer. The preferred polymers are polyolefins and polyamides. The metal provides barrier protection making the structure suitable for use in fuel lines, refrigerator hose, in-floor heating pipe, solar hot water heating systems and the like. The tubes are of a geometry which provides burst strength, so that the metal can be quite thin.

Abstract: A transversely tearable film and pouches made therefrom are disclosed. The transversely tearable laminate comprises a machine direction oriented linear low density polyethylene film adhesively laminated on at least one side to a sealant film, the sealant film having an Elmendorf tear in the machine direction of at least about 2 g/.mu.m, and the selection of said oriented film and said sealant film being made on the basis that:K.X>(1-Y),whereinK is an empirically determined factor which depends of the properties of the oriented film and the sealant film,X is the thickness of all layers of sealant film in micrometers,Y=(MD.sub.c)/(TD.sub.c)MD.sub.c is the Elmendorf tear strength, in the machine direction, of the oriented film, measured in grams, andTD.sub.c is the Elmendorf tear strength, in the transverse direction, of the oriented film, measured in grams.

Abstract: A transversely tearable film and pouches made therefrom are disclosed. The transversely tearable laminate comprises a machine direction oriented linear low density polyethylene film adhesively laminated on at least one side to a sealant film, the sealant film having an .Elmendorf tear in the machine direction of at least about 2 g/.mu.m, and the selection of said oriented film and said sealent film being made on the basis that:K.X>(1-Y),whereinK is an empirically determined factor which depends of the properties of the oriented film and the sealant film,X is the thickness of all layers of sealant film in micrometers,Y=(MD.sub.c)/(TD.sub.c)MD.sub.c is the Elmendorf tear strength, in the machine direction, of the oriented film, measured in grams, andTD.sub.c is the Elmendorf tear strength, in the transverse direction, of the oriented film, measured in grams.

Abstract: A heat sealing apparatus includes a pair of sealing jaws and means for closing the jaws, the first of said jaws having an electrical impulse sealing element mounted thereon, covered with a release sheet, and the second of said jaws having a resilient pad mounted thereon, covered with a release sheet, wherein a heat dispersing foil is between the resilient pad and the release sheet which covers the pad.