| Patent Number |
Title Of Patent |
Date Issued |
| 6093750 |
Expandable thermoplastic polymer particles and method for making same |
July 25, 2000 |
| An improved process for manufacture of expandable polymer particles is provided. The continuous process disclosed produces expandable polymer pellets in a single step while eliminating many of the dangers inherent in processes of prior art employed for the same. The polymers produced her |
| 5977195 |
Expandable thermoplastic polymer particles and method for making same |
November 2, 1999 |
| An improved process for manufacture of expandable polymer particles is provided. The continuous process disclosed produces expandable polymer pellets in a single step while eliminating many of the dangers inherent in processes of prior art employed for the same. The polymers produced her |
| 5519154 |
Ethoxylated ester surfactants and a process therefor |
May 21, 1996 |
| A process for producing ethoxylated ester surfactants in high yield has been discovered which employs no halogen-containing reactants or intermediates. Allyl alcohol is reacted with ethylene oxide to give an allyl alcohol ethoxylate; the ethoxylate in turn is reacted with a bisulfite |
| 5516343 |
Hydrocarbon compositions containing a polyetheramide additive |
May 14, 1996 |
| The instant invention relates to a hydrocarbon composition, such as motor fuel and lubricant compositions, containing a polyetheramide as a deposit control additive, to a concentrate containing such a polyetheramide as a deposit control additive, and to a method for improving the operati |
| 5504181 |
Aliphatic spray polyurea elastomers |
April 2, 1996 |
| An aliphatic spray polyurea elastomer is disclosed. The elastomer comprises an (A) and (B) component. The (A) component includes an aliphatic isocyanate. The (B) component includes an amine terminated polyoxyalkylene polyol and an amine terminated aliphatic chain extender. |
| 5494595 |
Oil soluble polyethers |
February 27, 1996 |
| This invention discloses an oil soluble polyether composition, comprising: ##STR1## wherein R is either a C.sub.14-20 alkyl or C.sub.9-12 alkylphenyl; A is ##STR2## where x is from 7 to 13; i, j, k, and l are each independently from 0 to 35 and the sum (i+j+k+l) is from 8 to 35;o |
| 5480955 |
Aliphatic spray polyurea elastomers |
January 2, 1996 |
| An aliphatic spray polyurea elastomer is disclosed. The elastomer comprises an (A) and (B) component. The (A) component includes an aliphatic isocyanate. The (B) component includes an amine terminated polyoxyalkylene polyol and an amine terminated aliphatic chain extender. |
| 5466778 |
Process for polymerization of tetrahydrofuran using acidic zeolite catalysts |
November 14, 1995 |
| Disclosed is an improved process for polymerization of tetrahydrofuran to prepare poly(tetrahydrofuran) products with a MW range of 200 to 5000 and a dispersity of <2, which comprises premixing a carboxylic anhydride, such as, for example acetic anhydride and a dealuminated Y-zeolite |
| 5466778 |
Process for polymerization of tetrahydrofuran using acidic zeolite catalysts |
November 14, 1995 |
| Disclosed is an improved process for polymerization of tetrahydrofuran to prepare poly(tetrahydrofuran) products with a MW range of 200 to 5000 and a dispersity of <2, which comprises premixing a carboxylic anhydride, such as, for example acetic anhydride and a dealuminated Y-zeolite |
| 5449725 |
Polyfunctional polymers as deinking agents |
September 12, 1995 |
| This invention presents a series of polyfunctional polymers useful as deinking agents. The polymers, which generally have molecular weights in the 2,000-100,000 range, can be used to effectively separate and remove ink in a variety of deinking processes, including flotation, wash, and |
| 5442034 |
Spray polyurea elastomers containing organic carbonates to improve processing characteristics |
August 15, 1995 |
| Spray polyurea elastomers are disclosed made from an (A) component and a (B) component, where the (A) component has a quasi-prepolymer made from an isocyanate and an active hydrogen-containing material, such as a polyoxyalkylenepolyamine. The (B) component includes an amine resin, such |
| 5436351 |
Imidazolidone polyetheramide surfactant |
July 25, 1995 |
| Disclosed is a novel composition of the formula: ##STR1## wherein R=H, methyl, ethyl, or a mixture thereof and R.sup.5 =a saturated or unsaturated alkyl group from a fatty acid containing 7 to 22 carbon atoms and a+b=n, wherein n is from about 2 to 80, resulting from alkoxylating |
| 5422042 |
Imidazolidone polyetheramine strength enhancing additives of epoxy resin systems |
June 6, 1995 |
| This invention discloses the composition and preparation of imidazolidone modified polyetheramines. The alkyl polyetheramine is derived from 2-isopropylaminoethylamine and urea. N-isopropyl-2-imidazolidone is the intermediate product, which is alkoxylated and aminated to prepare the |
| 5414087 |
Preparation of N-alkylpiperazines |
May 9, 1995 |
| Disclosed is a one-step method for preparing N-alkylpiperazines which eliminates the initial preparation and isolation of piperazine which comprises reacting a carbonyl compound and an amine in the presence of hydrogen over a metallic hydrogenation-dehydrogenation catalyst from Group |
| 5405977 |
Process for removing organic halides from alkylene carbonates |
April 11, 1995 |
| A method for removing organic halide contaminants from alkylene carbonates is disclosed. Organic halide contaminants are removed from alkylene carbonates by contacting the contaminated alkylene carbonate with hydrotalcite. |
| 5399663 |
Poly(etheramide) segmented block copolymers |
March 21, 1995 |
| An amine terminated random copolymer containing ethylene oxy/propylene oxy segments may be reacted with hexamethylene diamine and adipic acid monomers to make improved poly(etheramide) segmented block copolymers. Ordinarily, poly(propylene glycol) diamines tend to phase separate under |
| 5391826 |
Amidopolyamines derived from amino-carboxylic acid |
February 21, 1995 |
| Diamidopolyamines are prepared by reacting glutamic acid with two moles, per mole of glutamic acid, of a defined class of diamines, including oxyethyelene diamines, oxypropylenediamines, oxyethylene/propylene diamines, oxypropylene triamines, 1,2-diaminocyclohexane and isophorone dia |
| 5362913 |
Saturated, aminated, alkoxylated polybutadienes |
November 8, 1994 |
| Highly saturated, highly aminated alkoxylated polymers may be reliably made by an improved process involving the steps of (1) polymerizing one or more unsaturated hydrocarbons to form a liquid polymer, where at least one of the unsaturated hydrocarbons is butadiene; (2) providing the liq |
