Solutia Inc.

An interlayer for a laminated composite is disclosed. The interlayer of the present invention includes a polymer resin composition and an interlayer thickness and comprises a plurality of visible, light-reflecting bodies, wherein the visible, light-reflecting bodies include a first set of visible, light-reflecting bodies arranged in a first substantially coplanar arrangement in a first plane XY1 within said interlayer thickness and a second set of visible, light-reflecting bodies arranged in a second substantially coplanar arrangement in a second plane XY2 within said interlayer thickness that is substantially parallel to and different from said first plane. A composite glazing laminate and methods for forming a laminated composite glazing are also described.

A polymer interlayer that resists formation of optical defects. The polymer interlayer comprises a first polymer layer ( 14 ), a second polymer layer ( 16 ), and a third polymer layer ( 16 ). The first polymer layer ( 14 ) is positioned between the second polymer layer ( 16 ) and the third polymer layer ( 16 ). The first polymer layer ( 14 ) comprises a resin including (i) less than about 10 titers of monovalent alkaline metal salt, and (ii) an organic acid scavenger in a range from 0.5 to 6 phr.

Tie layers and structures that exhibit superior properties and that provide desirable optical properties when incorporated into laminates, such as windshields, windows or other glazings containing a holographic optical element (HOE) are disclosed. The tie layers, when used in a laminate in conjunction with the HOE film, optionally with additional polymer layers, maintain and do not detract from the HOE film properties.

An interlayer for a laminated composite is disclosed. The interlayer of the present invention includes a polymer resin composition and an interlayer thickness and a plurality of deformable, visible, light-reflecting body precursors that deform or are capable of deformation to form cupped, visible, light-reflecting bodies when said interlayer is laminated between first and second transparent substrates to form a laminated composite glazing. An interlayer component sheet including a substrate and deformable, visible, light-reflecting body precursors; a laminated composite glazing including a plurality of cupped, visible, light-reflecting bodies; and methods for forming a laminated composite glazing are also described.

The invention provides certain polyesteramide compositions which have glass transition temperatures (T g ) of greater than or equal to 0° C. The polyesteramides of the invention are useful as polymeric interlayers for laminate structures, for example, safety glass, where excellent toughness is combined with high adhesion to glass.

Multiple layer interlayers having enhanced optical and acoustic properties are provided, along with methods of making and using the same. Interlayers as described herein may include at least two outer skin layers and an inner core layer, with one of the outer skin layers having a different thickness than the other at one or more locations along the interlayer. The multi-layer interlayer may also exhibit acoustic properties and, in some cases, may have an overall wedged thickness profile. Additionally, in some aspects, interlayers and laminates formed therefrom may also provide reduced infrared energy transmission, without sacrificing acoustic and/or optical performance.

Interlayers that exhibit superior properties and that provide desirable optical properties when incorporated into laminates, such as windshields, windows or other glazings containing a holographic optical element (HOE) are disclosed. The interlayers, when used in a laminate in conjunction with the HOE film, maintain and do not detract from the HOE film properties.

A polymer interlayer with improved acoustic properties. The polymer interlayer comprises a first polymer layer, a second polymer layer, and a third polymer layer. The first polymer layer is positioned between the second polymer layer and the third polymer layer. The first polymer layer is formed from a resin comprising polyvinyl acetate (PVAc). The first polymer layer has a Tg of less than about 20° C. and a peak tan δ greater than about 2.0.

A polymer interlayer that resists formation of optical defects. The polymer interlayer comprises a first polymer layer, a second polymer layer, and a third polymer layer. The first polymer layer is positioned between the second polymer layer and the third polymer layer. The first polymer layer has a glass transition temperature of less than about 20° C. and the second and third polymer layers each have a glass transition temperature of more than about 25° C. The polymer interlayer has an edge. The first polymer layer is not present within a portion of the polymer interlayer. The portion of the polymer interlayer extends a distance X from the edge of the polymer interlayer, with the distance X being between 0.2 and 40 cm.

A method of recovering poly(vinyl butyral) (PVB). The method comprises a step of providing recycled PVB to a reclamation system. An additional step includes adding a solvent the recycled PVB to dissolve the recycled PVB and form a PVB solution. An additional step includes adding a catalyst and butyraldehyde to the PVB solution to form a PVB reaction mixture. An additional step includes heating the PVB reaction mixture. An additional step includes filtering the PVB reaction mixture to remove solids. A further step includes removing the solvent and the butyraldehyde from the PVB reaction mixture to obtain recovered PVB.