The Dow Chemical Company

Southern Clay Products, Inc.

Bruce P Thill

William J Fairchok

Donald A Tomalia

Bruce A King

Mark J McKinley

Ralph E Friedrich

Yi-Bin Huang

Clois E Powell

Thomas W Regulski

Kevin L Nichols

Thomas T Chiu

Thomas E Wessel

Thomas O Ginter

Janet N Paige

Antonio Gonzales

Organoclay compositions which comprise the reaction product of a smectite-type clay having an ion exchange capacity of at least 50 meq. wt. per 100 g. clay (active basis), and mixture of a quaternary ammonium compound and a chain transfer agent which is a thiol, .alpha.-methylketone, .alpha.-methylalcohol or a halogen compound are useful agents for use in the processes for the preparation of thermoplastic materials.

Organoclay compositions

A composition of matter comprising 25 to 99 parts by weight thermoplastic resin and 75 to 1 part by weight solid reinforcing agent having a surface coating of a polar group functionalized polyarylene ether.

Thermoplastic resins containing coated additives

Impact modified syndiotactic vinyl aromatic polymers

Polyalkyloxazoline-polycarbonate-polyalkyloxazoline triblock copolymers are prepared by a novel process, and are useful as compatibilizing agents in polycarbonate/polyamide resin blends.

Polyalkyloxazoline-polycarbonate-polyalkyloxazoline triblock copolymer

Polyalkyloxazolines are useful as compatibilizing agents in polycarbonate/polyamide resin blends.

Blend of polycarbonate and polyamide compatibilized with a

A thermoplastic laminate structure consisting of a plurality of layers wherein at least one of the layers is the adhesive polymeric blend. The adhesive polymeric blend comprises a dispersed phase of poly-2-oxazoline and a glycol and a continuous phase of grafted polypropylene. The preferred poly-2-oxazoline is poly-2-ethyl-2-oxazoline and the preferred glycols are polyalkylene glycols. The grafted polypropylene comprises from about 50 to 80 percent by weight of the total polymeric blend. The grafted polypropylene contains from about 0.1 to about 5 percent by weight total polymer of a graft portion derived from an .alpha.,.beta.-ethylenically unsaturated carboxylic acid or an unsaturated cyclic anhydride wherein said glycol is in slight excess to the graft, i.e., molar ratio of glycol to graft is 1.1 to about 1.5:1.

Thermoplastic laminate tie layer using a polymeric blend adhesive

A process for absorbing polar materials using a crosslinked polymeric composition such as poly-2-ethyloxazoline and ethyleneamine tetracetic acid. The crosslinked polymeric composition swells into a gel-like mass in the presence of polar materials to entrap them.

Process for absorbing polar materials using transamidated

A polymeric composition comprising a poly-2-oxazoline reacted by transamidation with a carboxylic acid, anhydride, salts of a carboxylic acid or combination thereof which can be blended with another polymeric composition to form a water wettable blend. In another aspect, the poly-2-oxazoline is crosslinked with a polybasic carboxylic acid by transamidation. The crosslinked polymeric composition is useful as an absorbent for polar materials.

Transamidated poly-2-oxazoline compositions useful as wetting agents for

Increased ion exchange capacity per unit weight of substrate is achieved upon using as the substrate regenerated cellulose sponge instead of cotton fabric. A water soluble crosslinkable polymeric material having ion ion exchange sites, such as polyvinyl phosphate or polyethylenimine, and a suitable crosslinking agent are dissolved in water. The sponge is wetted with the solution and dried and cured at about 100 degrees to 145 degrees C. to crosslink the polymer to the substrate. The so-prepared ion exchange composition is immersed in a flowing stream of dilute aqueous solution of heavy metal ions or otherwise contacted with such solution to effect separation and concentration of such cations.

Ion exchange polymers on improved porous substrates

A thermosetting powder coating composition is disclosed herein. The composition comprises a solid pulverulent mixture of (A) a substantially linear vinyl addition interpolymer having a plurality of pendant 2-oxazoline and/or 2-oxazine groups, a number average molecular weight of from about 5,000 to about 25,000, and a melting point of from about 60.degree. C. to 90.degree. C., and (B) a solid polycarboxylic acid melting in the range of 70.degree. C. to 175.degree. C. which is included in an amount of from 0.75 to 1.25 carboxy equivalents per pendant oxazoline or oxazine group on the interpolymer. The utility of the above composition as a powder coating is further enhanced by inclusion of a plasticizer (e.g., a long chain monocarboxylic acid) and in practice, the powder compositions also normally include pigments and minor amounts of flow control agents. The instant powder coatings are applied by conventional techniques and cured at temperatures normally in the range of from about 150.degree. C. to about 200.degree. C.

Thermosetting powder coating composition comprising vinyl interpolymer

2-Vinyl-2-oxazolines are prepared in the novel process comprising reacting (1) an N-(2-haloalkyl)-3-halopropionamide with (2) at least 2 equivalents of an inorganic base per mole of (1). The process is conducted under substantially anhydrous conditions and in the presence of an alkylene glycol or a polyalkylene glycol.

Process for making 2-vinyl-2-oxazolines

Ethylenically-unsaturated products are obtained by (a) reacting acrylic acid and 2-oxazoline or a 2-alkyl or aryl-2-oxazoline in an inert liquid reaction medium and (b) recovering the desired product from (a) by heating the reaction mixture under reduced pressure to strip away the liquid diluent and volatile components, thus leaving the desired product as a non-volatile residue. The reaction products can be cross-linked by conventional techniques (e.g. freeradical initiation) to form useful coatings and adhesives. For example, the product produced by heating equal molar amounts of acrylic acid and 2-ethyl-2-oxazoline in benzene gave an ethylenically-unsaturated oligomeric product having a number average molecular weight of 253 and a weight average molecular weight of 460 in approximately 95 percent yield.

Growing community of inventors

Midland, MI, United States of America

Bruce P Thill