Basf Corporation

Peter R Blanpain

Koichi Takamura

Heinz P Plaumann

Paul Velasco

Wayne Millican

Barry Baughman

Richard W Liu

John Cheng

Richard L Scott

An adhesive useful in making recyclable carpet is prepared from a copolymer dispersion and a filler. The copolymer dispersion is prepared in an emulsion polymerization of a mixture of monomers comprising styrene, butadiene, an alkylacrylic acid monomer, in which the alkyl radical of the alkylacrylic acid monomer is a C to C branched or unbranched hydrocarbyl radical, and a combination of a second ethylenically unsaturated monocarboxylic acid with an ethylenically unsaturated dicarboxylic acid, in which the alkylacrylic acid monomer is present in a quantity predominating the combination of the second ethylenically unsaturated monocarboxylic acid with the ethylenically unsaturated dicarboxylic acid. The adhesive can be completely removed from the face fibers by applied shear in the presence of aqueous alkaline solution. Recyclable carpets made with the adhesive exhibit high delamination strength, both when wet and when dry.

Carpet backing adhesive and its use in recycling carpet

The present invention relates to the coagglomeration of random vinyl substituted aromatic/C -C conjugated diolefin polymers With sulfur. Said coagglomerate is storage stable and easily blended with asphalt under a variety of mixing conditions. Further, polymer/asphalt blends prepared with the sulfur coagglomerated polymers show improved storage stability against phase separation.

Co-agglomeration of random vinyl substituted aromatic/conjugated diolefin polymer with sulfur to improve homogeneity of polymer/asphalt admixtures

The present invention relates to the coagglomeration of random vinyl substituted aromatic/C,-C,conjugated diolefin polymers with sulfur. Said coagglomerate is storage stable and easily blended with asphalt under a variety of mixing conditions. Further, polymer/asphalt blends prepared with the sulfur coagglomerated polymers show improved storage stability against phase separation.

The present invention relates to the coagglomeration of random vinyl substituted aromatic/C.sub.4 -C.sub.6 conjugated diolefin polymers with sulfur. Said coagglomerate is storage stable and easily blended with asphalt under a variety of mixing conditions. Further, polymer/asphalt blends prepared with the sulfur coagglomerated polymers show improved storage stability against phase separation.

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Charlotte, NC, United States of America

Peter R Blanpain