01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & 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.
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.
THE UNITED STATES OF AMERICA, as represented by THE SECRETARY OF AGRICULTURE (USA)
ANDERSON DEVELOPMENT COMPANY (USA)
THE PENN STATE RESEARCH FOUNDATION (USA)
Inventor
Heise, Glenn, L.
Sharma, Brajendra, K.
Erhan, Sevim, Z.
Abstract
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 - Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing atoms of elements not provided for in groups
C10M 105/78 - Lubricating compositions characterised by the base-material being a non-macromolecular organic compound containing boron
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 - Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereofCoating compositions based on derivatives of such polymers
C09D 4/00 - Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond
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.
