Disclosed herein is a multi-layer golf ball having a central core, an inner cover layer containing a non-ionomeric polyolefin material and a filler, and an outer cover layer comprising a resin composition. The combined thickness of the inner and outer cover layer preferably is at least about 0.10 inches. The golf ball has a coefficient of restitution of at least about 0.750. When the inner cover layer contains a non-ionomeric material and the outer cover layer contains, e.g., an ionomer, the golf ball of the invention can be configured to have playability properties comparable to those of golf balls which contain substantially higher quantities of ionomer. A method for forming the golf ball described above also is disclosed.

Golf ball and method of making same

A laminated metal sheet, the metal sheet having adhered on at least one major surface thereof a film of a non-crystalline polyester, and a process for the preparation thereof. The laminated metal sheet is particularly useful for forming into drawn and wall ironed (DWI) cans. The laminate is also useful for forming other non-retorted packaging components.

Laminated metal sheet

A primary technical goal of a mechanical seal device of the present invention is to decrease assembly cost thereof as well as machining cost thereof and to prevent wear of seal surfaces by preventing occurrence of squealing noises of the seal surfaces. The mechanical seal device comprises a first seal ring which is one of a pair of seal rings and disposes an engagement portion at the outer circumferential surface, a retainer ring which has a first support portion supporting an inner diameter surface of the first seal ring and a second support portion engaging the engagement portion and is fixed with either a seal housing or a shaft, and a gasket which joins the retainer ring and the first seal ring in a sealing manner, wherein an engagement clearance (C) formed in a rotational direction between the engagement portion and the second support portion is within 0.5 mm.

Mechanical seal device

The invention provides a method for imparting topographical or protective features to a substrate by contacting a sheet material comprising a thermosettable layer with a substrate and heating the sheet material to an elevated temperature.

Melt-flowable materials and method of sealing surfaces

A method for extrusion coating both sides of a metal strip. A metal strip, such as aluminum alloy strip, is moved through a pre-conditioner, two extrusion dies, a post heater and a cooling system. Both sides of the strip are coated with thin coatings of polyester material. The coated metal strip is useful for containers, such as cans and can ends, as well as for automobiles, appliances, aerospace, construction and electrical devices.

Method for coating a metal strip

A method for the production of a metal sheet covered with polyester resin film which comprises laminating a polyester resin film which is preferably crystalline and oriented onto a metal sheet having a lower layer of metallic chromium and an upper layer of hydrated chromium oxide, which sheet has been heated to a temperature above the melting point of polyester resin film and then immediately quenching. This metal sheet covered with polyester resin film is excellent in corrosion resistance and formability.

Method for production of metal sheet covered with polyester resin film

A steel sheet is provided herein which has been treated to form thereon a first very thin layer of tin and a second layer of hydrated chromium oxide. This treated steel sheet can effectively be coated with an organic coating, and can be used for producing cans for foodstuffs and carbonated beverages.

Steel sheet useful in forming foodstuff and beverage cans

A polyethylene film is heat bonded to a metal sheet provided with a layer of hydrated chromium oxide, and possibly a layer of metallic chromium under the oxide layer. The laminated metal sheet is then rapidly quenched, and the polyethylene laminate is irradiated with an electron beam, gamma rays, or X-rays. Alternatively, the polyethylene film may be irradiated prior to lamination. The laminated metal sheet exhibits excellent resistance to steam and hot water and does not delaminate during forming operations such as can-making.

Method for production of a polyethylene laminated metal sheet

The invention relates to steel sheeting coated with a polyester resin film, in particular for the production of drawn-and-ironed cans, in which one side of the steel sheeting, which forms the inside of the drawn-and-ironed can and has first been coated at least with chromium oxide hydrate, is coated with a copolyester resin film which has been prepared by a process known per se from a polyester resin film comprising from 75 to 95 mol% of polyethylene terephthalate and from 5 to 25 mol% of a polyester resin obtained by esterification of at least one saturated polycarboxylic acid by means of at least one saturated polyalcohol, and the other side of the steel sheeting, which forms the outside of the drawn-and-ironed can, is plated with a ductile metal, such as tin, nickel, zinc or aluminum. This steel sheeting coated with a polyester resin film can be used in a simple manner to produce a drawn-and-ironed can which has excellent corrosion resistance with respect to contents of the can, such as carbonated beverages and fruit juices. In addition, the abovementioned drawn-and-ironed can can be used without internal coating after shaping.

Steel sheeting coated with a polyester resin film, in particular for drawn-and-ironed cans, and process for the production thereof

A copolyester resin film laminated metal sheet having excellent formability and a method for its production is disclosed. This disclosure comprises laminating a biaxially oriented copolyester resin film having specified characteristics, to one or both sides of a surface treated metal sheet, which has been heated to the melting point of the copolyester resin film ±50° C., just before the lamination of the copolyester resin film. This film has been precoated with a resin composite containing in its molecular structure at least one radical, such as epoxy radical and hydroxyl radical. The side of the copolyester resin film pre-coated with resin composite is in contact with the surface treated metal sheet. This copolyester resin film laminated metal sheet is suitable for some applications in which severe formability is required, such as deeply drawn cans formed by multiple drawings, drawn and partially ironed cans, drawn and stretch formed cans, can ends wherein a tab for easy opening is attached, screwed caps and crown caps.

Tsuneo Inui

Papers

Method for production of metal sheet covered with polyester resin film

Steel sheet useful in forming foodstuff and beverage cans

Method for production of a polyethylene laminated metal sheet

Steel sheeting coated with a polyester resin film, in particular for drawn-and-ironed cans, and process for the production thereof

Copolyester resin film laminated metal sheet