Basf Corporation

Hanon Systems

James Bennett

Gary J Kogowski

Graham Edmund Mc Kee

Heiner G&ouml;rrissen

Angela Greiner

Megan Stabile

Klaus M&uuml;hlbach

Steve Wasson

A sealing element having a substantially right-angled exterior corner is formed from a preform. The preform is formed from a strip of sealing material including a first longitudinal side surface having a projection projecting therefrom and an oppositely arranged second longitudinal side surface having a notch formed therein. The notch is aligned with the projection with respect to the longitudinal direction of the strip. A first segment of the strip is formed to a first side of the projection and a second segment of the strip is formed to a second side of the projection. The projection forms the substantially right-angled exterior corner of the sealing element following a bending of the first segment perpendicular to the second segment.

Strip seal for square shape with sharp corners

The invention provides a weatherable low gloss styrene copolymer composition which requires the addition of from 0.1 to 20% by weight of the total composition, of a partially crystalline polymer such as a polyalkylterephthalate, especially polybutyleneterephthalate or polyethyleneterephthalate, or polyethylenenaphthalate to a styrene copolymer (A). The low gloss styrene copolymer composition of the invention has a graft copolymer resin which results from polymerizing one or more monomers (A1) selected from the group consisting of (i) aromatic vinyl compounds, (ii) ethylenically unsaturated compounds, and (iii) mixtures thereof, in the presence of an elastomeric rubber (A2) in particulate form. The elastomeric rubber (A2) in particulate form results from polymerizing one or more monomers selected from the group consisting of (i) alkyl acrylates having from 1 to 8 carbon atoms, (ii) butadiene, (iii) olefin compounds, (iv) ethylenically unsaturated compounds, (v) aromatic vinyl compounds, (vi) polyfunctional monomers having a crosslinking effect, and (vii) mixtures thereof. The invention further provides a method of reducing the surface gloss of a styrene copolymer resin by adding to a styrene copolymer resin (A), from 0.1 to 20% by weight of a partially crystalline polymer such as a polyalkylterephthalate (B), based on the total weight of the composition. The invention also provides a composite suitable for use as exterior siding for a structure, the composite comprising at least one interior layer (I) comprising a thermoplastic resin, and at least one exterior layer (II) having a low gloss styrene copolymer comprising the low gloss styrene copolymer composition of the invention, wherein exterior layer (II) is continuos and coextensive with interior layer (I).

Styrene copolymer compositions having reduced surface gloss and composite articles incorporating same

A visual effect, such as a granite-look, is produced in a thermoplastic product by directly applying a sufficient amount of at least one color-containing thermoplastic resin system to the surface of an extruded sheet of a thermoplastic resin. The color-containing thermoplastic resin system is applied onto the extruded sheet after it emerges from the die and prior to it entering the rollstack.

Method and apparatus for applying a colorant to a thermoplastic to produce a visual effect

Growing community of inventors

Livonia, MI, United States of America

James Bennett