01 - Produits chimiques destinés à l'industrie, aux sciences ainsi qu'à l'agriculture
Produits et services
unprocessed synthetic polyurethane resins used in the manufacture of emulsions, dispersions, polymer solutions, pastes and powders comprised of urethane, isocyanate and/or urea along with any combination of vinyl, acrylic, polyether, polyester, amine, imide, polycarbonate and polybutadiene components for use in coatings, inks, adhesives, sealants, elastomers and surface treatments
Polyurethane/urea elastomer compositions which retain their dimensions at elevated temperatures. These polyurethane/urea elastomers surprisingly have improved green strength or dimensional stability upon demolding at typical mold temperatures of 80 to 130 C and remain dimensionally stable throughout the post cure process which is typically overnight at about 100 C. They are useful in indirect food contact or dry food contact applications since the compositions use trimethylene glycol di(p-aminobenzoate) as a chain extender or curative. The polyurethane/urea elastomers may be prepared by reacting toluene diisocyanate prepolymers with trimethylene glycol di(p-aminobenzoate). The toluene diisocyanate prepolymers are reaction products of toluene diisocyanate containing at least 25% by weight of the 2,6-isomer, preferentially at least 35%, more preferentially at least 45%, and most preferentially 60% with polyols such as polyoxyalkylene polyether polyols like polytetramethylene glycol, polypropylene glycol and polyethylene glycol, polyester polyols, polycaprolactone polyols, polycarbonate polyols, polybutadiene polyols or mixtures thereof.
C08G 18/00 - Polymérisats d'isocyanates ou d'isothiocyanates
C08G 18/10 - Procédés mettant en œuvre un prépolymère impliquant la réaction d'isocyanates ou d'isothiocyanates avec des composés contenant des hydrogènes actifs, dans une première étape réactionnelle
C08G 18/42 - Polycondensats contenant des groupes ester carboxylique ou carbonique dans la chaîne principale
C08G 18/72 - Polyisocyanates ou polyisothiocyanates
C08L 75/00 - Compositions contenant des polyurées ou des polyuréthanesCompositions contenant des dérivés de tels polymères
Borates, compositions comprising chiral (cyclic and acyclic) and achiral (cyclic and acyclic) borates; chiral (cyclic and acyclic) and achiral (cyclic and acyclic) biborates; and methods for their synthesis. Additionally, a significantly improved synthetic protocol for the synthesis of wide range of boronates starting from borates or biborates and Grignard or organolithium reagents that can be used for kilo lab and commercial scale production.
Ranges of glycidyl methacrylate containing acrylic resin monomer compositions and polymer properties which are suitable to be used in chain extension processes for Poly(lactic acid) or Polylactide (PLA). The selection of monomer compositions and molecular weight ranges of the acrylic chain extender resins, and the examples of chain extension reaction between the acrylic chain extender and PLA are also provided.
C08F 20/32 - Esters contenant de l'oxygène en plus de l'oxygène de la fonction carboxyle contenant des radicaux époxyde
C08F 220/32 - Esters contenant de l'oxygène en plus de l'oxygène de la fonction carboxyle contenant des radicaux époxyde
C08L 33/14 - Homopolymères ou copolymères des esters d'esters contenant des atomes d'halogène, d'azote, de soufre ou d'oxygène en plus de l'oxygène du radical carboxyle
THE UNITED STATES OF AMERICA, as represented by THE SECRETARY OF AGRICULTURE (USA)
ANDERSON DEVELOPMENT COMPANY (USA)
THE PENN STATE RESEARCH FOUNDATION (USA)
Inventeur(s)
Heise, Glenn, L.
Sharma, Brajendra, K.
Erhan, Sevim, Z.
Abrégé
Chemically-modified fatty acids prepared by reacting epoxidized fatty acids, their esters or triglyceride oils with borate compounds. The fatty acid derivatives produced are of the formula (A) wherein R is an H, branched or straight chain alkyl or alkenyl group, aromatic-containing group, glycerol, or glyceride, R" is a C3 to C29 aliphatic chain comprising one or more of the derivatized methylene groups of the formula (B) wherein m, n, and p are independently selected from 0 and 1; X is selected from O, NH, C(O)O, S, -C≡N, -N=C=O, -N≡C; and a borate of the formula (C) and R1 is selected from aryl, and straight, branched, cyclic or heterocyclic hydrocarbons or substituted hydrocarbons. These fatty acid derivatives have utility as antiwear/antifriction additives for industrial oils, fuels, and automotive applications.
C10M 139/00 - Compositions lubrifiantes caractérisées en ce que l'additif est un composé organique non macromoléculaire contenant des atomes d'éléments non prévus dans l'un des groupes
C10M 105/78 - Compositions lubrifiantes caractérisées en ce que le matériau de base est un composé organique non macromoléculaire contenant du bore
A resin suitable for powder coating including glycidyl acrylate or glycidyl methacrylate. The resin may also contain a high Tg and hydrophobicity monomer. Typical powder coatings made from the resin show improved powder coating handling, and particularly acid etch resistance.
C09D 133/00 - Compositions de revêtement à base d'homopolymères ou de copolymères de composés possédant un ou plusieurs radicaux aliphatiques non saturés, chacun ne contenant qu'une seule liaison double carbone-carbone et l'un au moins étant terminé par un seul radical carboxyle, ou ses sels, anhydrides, esters, amides, imides ou nitrilesCompositions de revêtement à base de dérivés de tels polymères
C09D 4/00 - Compositions de revêtement, p. ex. peintures, vernis ou vernis-laques, à base de composés non macromoléculaires organiques ayant au moins une liaison non saturée carbone-carbone polymérisable
9.
METHODS FOR DEVOLATILIZING RESIN SOLUTIONS AND RESINS PRODUCED THEREBY
A method of continuously devolatilizing a liquefied material utilizing an extruder having a barrel in which is disposed a plurality of continuously driven intermeshing conveying screws that continuously advance a flow of the liquefied material from an extruder inlet to an extruder outlet. The material contains 10-60 percent gaseous volatiles. Heat is introduced from an external source into the flow of liquefied material to progressively increase the temperature of the liquefied material being advanced, for promoting the separation of volatiles therefrom. Separated gaseous volatiles are vented through vapor escape ports formed in the extruder barrel, with the linear vapor velocity of the escaping volatiles not exceeding about 10-15 f/sec to avoid the venting of appreciable amounts of liquefied material along with the gaseous volatiles.
