A method of making a wet friction material is provided. The method includes obtaining a base layer sheet; obtaining an outer layer sheet; and laminating the outer layer sheet and the base layer sheet together to form the wet friction material. The base layer sheet includes a proportion of first fiber material and a proportion of first filler material and the outer layer sheet includes a proportion of second fiber material and a proportion of second filler material. The proportion of second fiber material is less than the proportion of first fiber material and the proportion of second filler material is greater than the proportion of first filler material.

A method of making a wet friction material includes providing an outer layer on a base layer to form the wet friction material. The base layer includes a proportion of first fiber material and a proportion of first filler material and the outer layer includes a proportion of second fiber material and a proportion of second filler material. The proportion of second fiber material is less than the proportion of first fiber material and the proportion of second filler material is greater than the proportion of first filler material. The method also includes forming a plurality of orifices passing through the outer layer.

Curable compositions are prepared using polyisocyanates, hydrophobic hydroxyl-terminated polymers (such as hydroxyl-terminated polyfarnesenes and hydroxyl-terminated polydienes) and organically-modified nanoclays, optionally in combination with chain extenders and/or urethane catalysts. When cured, the compositions yield polyurethane-based sealants useful in insulating glass units which have improved (lowered) moisture vapor transmission rate values as a consequence of the inclusion of the organically-modified nanoclays.

The present invention discloses moulded laminated reinforced composite glass which is mechanically strong composite of high optical quality and transparency. The moulded laminated reinforced composite glass comprises 10% to 20% (by vol.) of glass; and 80% to 90% (by vol.) nano composite liquid system comprising at least one resin selected from polyester and/or epoxy, at least one curing system and at least one nano particle uniformly dispersed in the resin. Another moulded composite glass comprises 10% to 20% (by vol.) of glass; 60% to 80% (by vol.) nano composite liquid system comprising at least one resin selected from polyester and/or epoxy, at least one curing agent and at least one nano particle uniformly dispersed in the resin and 5% to 10% (by vol.) of pre-stretched fabric embedded within the resin matrix. It also discloses a system and processes for the production of said moulded laminated reinforced composite glass.

Provided is a method for producing a gas barrier paper packaging material which can impart sufficient gas barrier properties even when a barrier coating agent for forming a barrier layer is applied in a dry amount of 2 g/m.sup.2 or less. The method for producing a gas barrier paper packaging material at least includes: a barrier layer forming step of applying a barrier coating agent to one side of a sealant film to form a barrier layer; and a lamination step of laminating the barrier layer and a paper substrate layer via an adhesive layer.

A cellulosic substrate includes a first major side and a second major side opposed from the first major side, a single polyolefin aqueous polymer dispersion barrier layer on the first major side of the cellulosic substrate, and at least one non-polyolefin aqueous polymer dispersion coating layer between the single polyolefin aqueous polymer dispersion barrier layer and the first major side of the cellulosic substrate.

Curable compositions are prepared using polyisocyanates, hydrophobic hydroxyl-terminated polymers (such as hydroxyl-terminated polyfarnesenes and hydroxyl-terminated polydienes) and organically-modified nanoclays, optionally in combination with chain extenders and/or urethane catalysts. When cured, the compositions yield polyurethane-based sealants useful in insulating glass units which have improved (lowered) moisture vapor transmission rate values as a consequence of the inclusion of the organically-modified nanoclays.

The laminate comprises a porcelain sheet with a thickness of two to three millimetres, adhered to a base or support sheet made of MDF or particleboard or high density foam or polyethylene or polypropylene or ABS or foamed PVC or methacrylate or a metal sheet of aluminium or steel, using as the adhesion means a two-component polyurethane or a PUR adhesive, producing a laminate that encompasses the advantages of the nature of the two materials, the porcelain and the base, as well as saving material, and being lighter, having higher thermal and acoustic insulation levels, improved resistance to bending loads and allowing to add additional layers, such as a metal sheet of thickness from 0.1 to 1 mm in order to obtain a greater flatness, or a combination with rubber or elastomer layers to improve the acoustic insulation level.

Adhesive compositions, articles, and methods are described. The electronic may comprise: i) a conductive metallic substrate; ii) an insulating resin layer; and iii) and an adhesive layer disposed between the substrate and insulating resin layer. The adhesive layer comprises at least 50 wt. % of polyimide resin comprising maleimide moieties; and at least 0.25 wt. % of an amine compound. In some embodiments, the conductive metallic substrate comprises copper, such as copper traces.

A multilayer foam film with an enhanced perceived surface whiteness comprising for light-blocking, signage, and general packaging application is disclosed. In an embodiment, the film has a bulk density of less than 0.962 gr/cm.sup.3 wherein more than 50% of the cells in the foam layer are closed cells. In an embodiment, the multilayer foam film has a thickness greater than 1 mil and one of the solid skin layers contains white pigment. In another embodiment the white skin layer has a skin whiteness value of greater than 80 according to ASTM E313-73, and a skin layer tint value of less than 1 according to ASTM E313-73, and The lightness value (L*) of the white skin layer of greater than 90 in CIE L*a*b* dimension according to ASTM E308. In an embodiment, the film has a very smooth surface with a smoothness value of less than 25 in Sheffield smoothness unit configuration according to TAPPI T 538.